DB6, 6H, 7, 8, 9, 10 Series Centrifugal Pumps

DB6, 6H, 7, 8, 9, 10 Series Centrifugal Pumps
DB6, 6H, 7, 8, 9, 10 Series
Centrifugal Pumps
Assembly, Installation and
Operation Manual
Table of Contents
Important Information - Read Me First
Model Number/Serial Number...................................................................................................... 1
Chemical Reaction Disclaimer...................................................................................................... 1
Safety Precautions......................................................................................................................... 1
Installation/Operation Precautions................................................................................................ 1-2
Safety Precautions for ATEX Pumps............................................................................................. 2
Temperature Classification............................................................................................................ 2
DB6 - 10 Capabilities.................................................................................................................... 2
Minimum Flow Rate...................................................................................................................... 2
Maximum Motor Power................................................................................................................ 2
Unpacking and Inspection................................................................................................................... 3
Section I - Assembly............................................................................................................................ 3
Pumps with Motors........................................................................................................................ 3
Pumps without Motors................................................................................................................... 3
Section II - Installation
Mounting........................................................................................................................................ 4
Piping............................................................................................................................................. 4
Motor/Electrical............................................................................................................................. 4
Section III - Start-up and Operation.....................................................................................................
Shutdown........................................................................................................................................
Flush Systems.................................................................................................................................
Optional Drain Installation.............................................................................................................
4
4
5
5
Section IV - Maintenance
Recommended Maintenance schedule............................................................................................ 5
Section V - Disassembly......................................................................................................................
Outer Drive Replacement................................................................................................................
Thrust Ring Replacement................................................................................................................
Bushing Replacement......................................................................................................................
5
6
6
6
Section VI - Reassembly...................................................................................................................... 6-7
Section VII - Troubleshooting............................................................................................................. 7
Section VIII - Warranty....................................................................................................................... 7
Part Number Explanation.................................................................................................................... 8
Spare Parts Diagram........................................................................................................................... 9
Spare Parts List................................................................................................................................... 10-12
Impeller Assemblies............................................................................................................................ 13
FTI Contacts:
Tech Service: 800-888-3743 or [email protected]
Order Fax:
814-459-3460 or 814-455-8518
Sales:
814-455-4478; 800-934-9384 (U.S. & Canada)
IMPORTANT INFORMATION - READ ME FIRST!
Model Number and Serial Number
Record the model number and serial number below for future reference. This is important information when ordering replacement parts or when
technical assistance is required. The numbers are found on a label located on the motor adapter.
MODEL NUMBER =
____________________________
SERIAL NUMBER =
________________________
Chemical Reaction Disclaimer
The user must exercise primary responsibility in selecting the product’s materials of construction, which are compatible with the fluid(s) that
come(s) in contact with the product. The user may consult Finish Thompson, Inc. (manufacturer) and a manufacturer’s representative/distributor
agent to seek a recommendation of the product’s material of construction that offers the optimum available chemical compatibility.
However neither manufacturer nor agent shall be liable for product damage or failure, injuries, or any other damage or loss arising out of a reaction, interaction or any chemical effect that occurs between the materials of the product’s construction and fluids that come into contact with the
product’s components.
Safety Precautions
WARNING: READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND OPERATING THIS
UNIT. FAILURE TO FOLLOW THESE PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH.
WARNING: Magnetic field hazard: This pump contains powerful magnets. Exposed magnets (pump not connected to motor) produce powerful
magnetic fields. Individuals with cardiac pacemakers, implanted defibrillators, other electronic medical devices, metallic prosthetic heart valves,
internal wound clips (from surgery), metallic prosthetic devices or sickle cell anemia must not handle or be in the proximity of the magnets contained inside the pump. Consult a health care provider for specific recommendations before working with this pump.
WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommended procedures. The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end together. Do not place fingers between the mating surfaces of
the motor and wet ends to avoid injuries. Keep the drive magnet and impeller assembly away from metal chips or particles, items with magnetic
stripes like credit cards and magnetic computer media such as floppy discs and hard drives.
WARNING: Hot surfaces. This pump is capable of handling liquids with temperatures as high as 220º F (104º C). This may cause the outer
areas of the pump to become hot as well and could cause burns.
WARNING: Rotating Parts. This pump has components that rotate while in operation. Follow local safety standards for locking out the motor
from the power supply during maintenance or service.
WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals. Always wear protective
clothing, eye protection and follow standard safety procedures when handling corrosive or personally harmful materials. Proper procedures should
be followed for draining and decontaminating the pump before disassembly and inspection of the pump. There may be small quantities of chemicals present during inspection.
WARNING: The pump and associated components are heavy. Failure to properly support the pump during lifting and movement could result
in serious injury or damage to the pump and components.
WARNING: Never run pump at less than minimum flow or with the discharge valve closed. This could lead to pump failure.
Installation/Operation Precautions
CAUTION: This pump should never be operated without liquid in the casing. It is recommended that run dry protection be used. Optional
electronic power monitors are available to help protect against run dry. If the pump has a PTFE, ceramic or silicon carbide bushing, IT CANNOT BE
RUN DRY WITHOUT CAUSING DAMAGE TO THE PUMP. However, the pump can operate without liquid in the casing if the pump has a carbon bushing. The exact length of time the pump can operate dry with a carbon bushing varies with operating conditions and the environment.
CAUTION: Never start or operate with a closed suction valve. Never operate with a closed discharge valve.
1
CAUTION: Always provide adequate NPSHa (net positive suction head available). It is recommended to provide at least 2 feet (61 cm) above
the NPSHr (net positive suction head required).
CAUTION: If pump is used on variable speed drive, do not exceed the frequency for which the pump was designed (for example, if the pump
is a 50 Hz model, do not exceed 50 Hz).
Safety Precautions for ATEX Pumps
CAUTION: Proper o-ring material must be chosen for the fluid being pumped. Improper material selection could lead to swelling and be a
possible source of leaks. This is the responsibility of the end user.
WARNING: The pump must be checked for leaks on a regular basis. If leaks are noticed, the pump must be repaired or replaced immediately.
WARNING: The pump must be cleaned on a regular basis to avoid dust buildup greater than 5 mm.
WARNING: ATEX pumps must use a power monitor, flow switch, pressure switch or similar device to help protect against running dry, closed
discharge valve and decoupling. Any of these conditions could lead to a rise in surface temperature of the pump.
Temperature Classification
Fluid Temperature
Maximum Surface
Temperature
Temperature Class
Maximum Allowable
Surface Temperature
90º F (32º C)
125º F (52º C)
T6
85º C
180º F (82º C)
174 º F (81º C)
T4
135º C
220º F (104º C)
200º F (93º C)
T4
135º C
DB6, 6H, 7, 8, 9,10 Capabilities
•
Maximum Working Pressure: 80 psi (5.5 bar)
•
Maximum Viscosity:
150 cP
•
Maximum Temperature:
Polypropylene -180º F (82º C); PVDF – 220º F (104º C)
•
Note: Maximum temperature is application dependent. Consult a chemical resistance guide or the chemical manufacturer for chemical com-
patibility and temperature limits.
•
Solids: Maximum particle size is 100 microns for slurries and 1/64” (.4 mm) for infrequent particles. Maximum hardness is 80 HS. Maximum concentration is 10% by weight. If solids are being pumped, it is recommended that the pump have either ceramic or for best results, silicon carbide components. Pumping solids may lead to increased wear.
Minimum Allowable Flow Rate
Do not allow the flow rate to drop below the minimum flow rate listed in the chart below.
3450 rpm
1725 rpm
2900 rpm
1450 rpm
1/2 gpm (1.9 lpm)
1/4 gpm (.95 lpm)
1.9 lpm (1/2 gpm)
.95 lpm (1/4 gpm)
Maximum Allowable Motor Power
Do not exceed the maximum power rating for the pump coupling. Standard coupling for the DB6, 6H & 7 is 6-pole; standard coupling for the
DB8, 9 & 10 is 8-pole.
· 6-pole coupling = 1/2 horsepower (0.37 kW)
· 8-pole coupling = 1 horsepower (0.75 kW)
· 10-pole coupling = 2 horsepower (1.50 kW)
Unpacking and Inspection
6. Secure the drive on the motor shaft.
Unpack the pump and examine for any signs of shipping damage. If
any damage is detected, save the packaging and notify the carrier
immediately.
WARNING: Be careful, magnets will try to attract tools.
Section I - Assembly
Pumps with Motors
Proceed to Installation Section
Pumps Without Motors
Tools Required:
Metric Motors: Secure the drive to the motor shaft using bolt, lock washer and flat washer (items 21, 22, 23). Thread the
bolt into the end of the motor shaft (while
holding the outer drive to prevent it from turning). See figure 6.
Tighten the bolt to the following:
Metric socket or wrench set, 9/16” socket or wrench and 3/16” Allen
Wrench (NEMA motors only)
1. Remove the pump, drive magnet assembly and hardware package from the carton.
CAUTION: Keep away from metallic particles, tools and elec-
tronics. Drive magnets MUST be free of metal chips.
WARNING: Keep the drive magnet away from the open end of the motor adapter and barrier. Strong magnetic attraction could allow the drive hub to enter the motor adapter resulting in injury or damage.
2. Place motor on the fan end. See figure 1.
NOTE: For 56C/145TC frame motors go to step 4.
3. Install the motor adapter flange (item 14) on motor face using bolts, lock washers and flat washers (items 27, 28, 29). See figure 2.
Torque bolts to the following:
· 63 frame (M5) = 30 in-lb (3.4 N-m)
· 71 frame (M6) = 90 in-lb (10.2 N-m)
· 80 frame (M6) = 90 in-lb (10.2 N-m)
NOTE: Apply anti-seize compound on the threads of the bolts.
Figure 1
= 15 in-lb (1.7 N-m)
= 30 in-lb (3.4 N-m)
= 90 in-lb (10.2 N-m)
= 130 in-lb (14.7 N-m)
= 240 in-lb (27.1 N-m)
NEMA Motors: Install set screws (item 13B) into threaded holes on the side of the outer drive magnet assembly. Using a 3/16” Allen wrench, tighten to 228 in-lbs (25.8 N-m). See figure 7.
7.
Install the pump end on the motor/drive
magnet assembly. With the motor/outer
drive magnet assembly in a horizontal position,securely clamp to the workbench.
Note: If the pump has the optional o-ring sealing option (available on 56C and 145 frame pumps only), install the o-ring (item 12) in the groove in the motor adapter (motor end).
Carefully slide the pump onto the drive magnet assembly. The last couple of inches (5 cm) before the pump reaches the motor will have STRONG magnetic attraction between the pump and outer drive magnet assembly. See figure 8.
NOTE: Make sure the motor shaft is clean
and free of burrs. The outer drive is preci-
sion machined and has a bore tolerance of +.0005/-0 inch.
Figure 2
Figure 8
Figure 9
9. Rotate the motor fan to ensure that there is no binding in the pump.
Figure 3
5. Slide the outer drive magnet assembly (item 13) onto the motor shaft until the motor shaft contacts the snap ring in the bore of the 10. Proceed to Installation Section.
drive. See figures 4 & 5.
Figure 4
Figure 7
8. Secure the pump to the motor with (4) 3/8” bolts, lock washers and flat washers (items 24, 25, 26). Tighten to 60 in-lb (6.8 N-m). See figure 9.
4. Coat the motor shaft with anti-seize com-
pound. Insert key supplied with motor into keyway on motor shaft. See figure 3.
· 63 frame (M4) · 71 frame (M5) · 80 frame (M6) · 90 frame (M8)
· 100/112 frame (M10) Figure 6
Figure 5
Section II – Installation
Mounting
installed ¼” drain in the impeller housing. See the Drain Installation Section for details.
· For units in a suction lift system, install appropriate piping in the discharge to allow priming of the pump (DB models are not self-
priming).
Motor feet should be securely fastened to a solid foundation.
Note: Shims are required for the motor feet on ALL 63, 71 and 80
frame motors and 90 frame B5 motors.
· When installing pumps with flanges, we recommend the use of low
seating stress gaskets such as Gore-Tex® or Gylon® (expanded PTFE)
Instructions for horizontal discharge installation:
The pump ships from the factory with the discharge in a vertical orientation. These instructions allow a horizontal discharge.
Motor/Electrical
1.
2.
Install the motor according to NEC requirements and local electrical
Remove (4) clamp ring bolts, lock washers and flat washers (items codes. The motor should have an overload protection circuit.
20, 19, 18). Rotate clamp ring clockwise 90º from the motor end.
Wire the motor for clockwise rotation when facing the fan end of the
Reinstall (4) clamp ring bolts, lock washers and flat washers. motor.
Tighten to 60 in-lb (6.8 N-m).
Note: If the pump has the optional o-ring sealing option (avail-
able on 56C and 145 frame pumps only), make sure o-ring is properly seated in the groove after the clamp has been rotated.
Note: When the pump discharge is in a horizontal configuration, the motor must be shimmed to raise the front of the pump to avoid interference.
CAUTION: Do not operate the pump to check rotation until the
pump is full of liquid.
Check all electrical connections with the wiring diagram on the motor.
Make sure the voltage, frequency, phase and amp draw comply with
the supply circuit.
If utilized, verify that the power monitor has been properly installed
according to the manufacturers instructions.
Piping
To verify correct rotation of the motor:
Caution: The NPSH available must be greater than the NPSH
required. Filters, strainers and any other fittings in the suction line will
lower the NPSH available and should be calculated into the application.
1. Install the pump into the system.
2. Fully open the suction and discharge valves.
3. Allow fluid to flow into the pump. Do not allow the pump to run dry (ceramic, PTFE and silicon carbide bushings can’t be run dry without damage to pump components).
· Install the pump as close to the suction source as possible.
· Support the piping independently near the pump to eliminate any strain on the pump casing. In addition, the piping should be aligned to avoid placing stress on the pump casing.
4. Jog the motor (allow it to run for 1-2 seconds) and observe the rotation of the motor fan. Refer to the directional arrow molded into the pump casing if necessary.
· The suction side of the pump should be as straight and short as possible to minimize pipe friction.
· Keep bends and valves at least ten pipe diameters away from the suction and discharge.
Note: A pump running backwards will pump but at a greatly reduced flow and pressure.
Section III - Start-up and Operation
· The suction line should be at least as large as the suction inlet port or one pipe size larger so that it does not affect the NPSHa. Do not reduce the suction line size.
1. This pump must be filled from a flooded suction tank (gravity) or primed with liquid from an outside source. DB Series pumps are not self-priming.
· The suction line should not have any high spots. This can create air 2. Open the inlet (suction) and discharge valves completely and al-
pockets. The suction piping should be level or slope slightly upward low the pump to fill with liquid.
to the pump.
3. Close the discharge valve.
· A check valve and control valve (if used) should be installed on the 4. Turn the pump on. Slowly open the discharge valve. Adjust the discharge line. The control valve is used for regulating flow. An flow rate and pressure by regulating the discharge valve. Do not isolation valves on the suction and discharge are used to make the
attempt to adjust the flow with the suction valve.
pump accessible for maintenance. The check valve helps prevent the pump against damage from water hammer. This is particularly 5. Use of a power monitor is strongly recommended for pumps with important when the static discharge head is high.
ceramic, PTFE or silicon carbide bushings. The power monitor will stop the pump and help prevent damage if the pump should run dry.
· If flexible hose is preferred, use a reinforced hose rated for the proper temperature, pressure and chemical resistance to the fluid
Shutdown
being pumped.
Use the following procedure to shutdown the pump.
· The suction valve must be completely open to avoid restricting the 1. Slowly close the discharge valve.
suction flow.
2. Turn off the motor.
· It is advisable to install a flush system in the piping to allow the pump to be flushed before the pump is removed from service.
Note: The pump is provided with a provision for a customer 3. Close the suction valve.
Flush Systems
magnet and impeller assembly away from metal chips or particles.
1. Stop the pump, lock out the motor starter, close all the valves that are connected to the pump, and drain/decontaminate the pump.
CAUTION: Some fluids react with water; use compatible flushing fluid.
WARNING: The pump must be thoroughly flushed of any hazardous materials and all internal pressure relieved prior to opening
the pump. Allow the pump to reach ambient temperatures prior to
performing maintenance.
1. Turn off the pump.
2. Completely close the suction and discharge valves
3. Connect flushing fluid supply to flush inlet valve.
4. Connect flushing fluid drain to flush drain valve.
2. Securely clamp the motor to the bench. Remove the (4) bolts, lock washers and flat washers (items 24, 25, 26) securing the pump to the motor.
5. Open flushing inlet and outlet valves. Flush system until the pump is clean.
3. Firmly grab the pump and pull straight
back to disengage the motor and the pump. See figure 10.
Optional Drain Installation
1. Remove the impeller housing (item 1) from the pump assembly.
2. Clamp the impeller housing to a drill press table.
3. Using a 7/16” drill and the molded boss as a guide, drill com
pletely through the molded boss into the interior of the impeller housing.
CAUTION: Do not tap too deep or the impeller housing may be damaged.
4. Using a ¼” NPT tap, tap the hole in the molded boss to the ap-
propriate depth.
5. Install the drain plug or valve, being careful not to over-tighten.
Section IV - Maintenance
Recommended maintenance schedule
The recommended maintenance schedule depends upon the nature
of the fluid being pumped and the specific application. If the pump is
used on a clean fluid, it is recommended that the pump be removed
from service and examined after six months of operation or after 2,000
hours of operation. If the pump is used on fluids with solids, high temperatures or other items that could cause accelerated wear, then this
initial examination should be sooner.
4.
Place pump on bench with housing facing up. Remove (6) 8 mm housing bolts, lock washers and flat washers (items 15, 16, 17). See
figure 11.
5.
Pull housing (item 1) straight up to remove. Inspect housing for signs of
wear or damage. Look for signs of
rubbing, cracked thrust ring or dam-
age to front shaft support. See
figure 12.
6.
Remove impeller/inner drive assembly (items 4A, 4, 5, 5A). Inspect impeller and drive for signs of wear or damage. Look for signs of rubbing, damage and wear to the impeller and inner drive. See figure 13.
Check the impeller thrust ring and bushing for wear. See figure 14.
Figure 10
Figure 11
Figure 12
After the initial examination of the internal components and wear items
are measured, a specific maintenance schedule can be determined.
For best results, it is recommended that the pump be removed from
service annually for examination.
Section V - Disassembly
Figure 13
WARNING: Rotating Parts. This pump has components that rotate
while in operation. Follow local safety standards for locking out the
motor from the power supply during maintenance or service.
WARNING: Chemical Hazard. This pump is used for transferring
many types of potentially dangerous chemicals. Always wear protective
clothing, eye protection and follow standard safety procedures when
handling corrosive or personally harmful materials. Proper procedures
should be followed for draining and decontaminating the pump before
disassembly and inspection of the pump. There may be small quantities of chemicals present during inspection.
Figure 14
WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommended procedures. The
magnetic attraction is powerful enough to rapidly pull the motor end
and the wet end together. Do not place fingers between the mating
surfaces of the motor and wet ends to avoid injuries. Keep the drive
7.
Remove the impeller shaft (item 6) from the barrier and check for signs of cracking, chipping, scoring or wear. See figure 15.
8.
Remove the barrier (item 7) from the motor adapter (item 11) (make sure the shaft has been removed).
If necessary, gently tap on the back
side of the barrier with a soft rod (wood, plastic, etc). Inspect the inside and outside of the barrier for signs of rubbing. See figure 16.
9. Remove the o-ring (item 3) from the barrier and inspect for chemical at
tack, swelling, brittleness, cuts, etc.
Figure 20
Figure 15
To remove the impeller from the inner drive magnet, gently pry off by
hand or lightly tap on the back of the impeller.
To install a new impeller, place the inner
drive magnet assembly face up. Line
up the patterns on the impeller with the
ones on the inner drive magnet so they
match and press into place by hand. An
arbor press can also be used to press the
impeller on the inner drive. Place a piece
Figure 23
of wood over the top of the impeller thrust
ring and push down on the impeller until it is completely seated in the
inner drive. See figure 23.
Figure 16
Outer Drive Replacement
1. Remove the setscrews (item 13B) from the side of the drive (NEMA motors) or the bolt, lock washer and flat washer (items 21, 22, 23) from the center of the drive (metric motors).
Section VI - Reassembly
WARNING: Be careful, tools will want to be attracted to the magnets.
2. Remove the drive magnet from the motor shaft by gently prying up from the bottom of the drive. See
figure 17.
1. Place motor adapter (item 11) so the large flange is on the bench. Rotate the adapter so the four holes in the smaller flange are in the horizontal position. See figure 24.
2. Install clamp ring
Figure 17
3. To reinstall the drive or a new drive follow the instructions from Section I - Assembly, Pumps without Motors, steps 5 & 6.
Thrust Ring Replacement
1.
Thrust ring (item 4A) is held in-place with a snap fit with a ridge. Using a razor knife
or side cutters, cut a notch out of the thrust ring. Pull ring up and out of the holder. See figures 18 & 19.
2.
To reinstall, align the two flats on the thrust ring with the flats in the bore of the
impeller. Using a piece of wood press
into place using an arbor press until the
thrust ring is completely seated in the
impeller.
For vertical discharge – Install the clamp ring (item 9) in the motor adapter so the housing bolt holes (6 holes in clamp ring) are in 3:00 and 9:00 position. See figure 25.
For horizontal discharge - Install the clamp ring (item 9) in the motor adapter so two housing bolt holes (6 holes in clamp ring) are in 12:00 and 6:00 position. See figure 26.
Figure 18
Figure 24
Figure 25
Figure 26
3. Install (4) bolts, lock washers and flat washers (items 20, 19, 18). Tighten evenly using a star pattern. Tighten to 60 in-lb (6.8 N-m). See figure 27.
Bushing Replacement
To remove the bushing, place the impeller/inner drive assembly in an arbor press. Insert a
7/16” diameter plastic or wood shaft through
the eye of the impeller and press the bushing
out.
Figure 22
Impeller Replacement
10. Visually inspect the outer drive (item 13) for rubbing, damage, cor-
rosion or loose magnets.
Figure 21
4. Install barrier (item 7) into motor adapter & clamp ring assembly.
Figure 19
To replace the bushing (item 5A), place the top of the impeller on an
arbor press with the thrust ring face down. Insert the front of the bushing into the center of the impeller/inner drive magnet assembly. Press
into place until the bushing reaches the shoulder molded into the inner
drive. See figures 20, 21, 22.
NOTE: If the pump has the o-ring seal-
ing option (available on 56C and 145 frame pumps only), lubricate the o-ring with chemically compatible lubricant
Figure 27
and install in the groove in the clampring before installing the barrier. Barrier will have to be pushed into place with o-ring sealing option.
Insufficient Pressure
5. Install o-ring (item 3) in groove in the barrier.
6.
7.
Install impeller shaft (item 6) into barrier by aligning the flats on the shaft with the ones in the barrier. Make sure it is completely seated. See figure 28.
Carefully install the impeller/inner drive assembly (items 4A, 4, 5, 5A) by sliding it over the impeller shaft in the barrier. It
is normal for the impeller/inner drive to pop up a slight amount due to magnetic forces. See figures 29 & 30.
8. Establish the bottom of the motor adapter/clamp ring assembly. See figures 25 & 26.
9.
Install the impeller housing making sure that the discharge is in correct orien-
tation (vertical or horizontal). Align the shaft in the barrier with the front shaft support in the impeller housing. Pressing
down, push the impeller/inner drive magnet assembly into position. Holding the impeller housing with one hand, install and finger-tighten two bolts, lock washers and flat washers (items 15, 16, 17) in opposite locations. See figure 31.
•
•
•
•
Figure 28
Loss of Prime
Figure 29
Leak in suction piping
•
•
•
•
•
Foot valve or suction opening not submerged enough
Foot valve too small or leaking
Air or gas in liquid
Foreign matter in impeller
Leaking valve. Suction lift too high or insufficient NPSHa.
•
•
•
Head lower than rating
Excessive flow
Specific gravity or viscosity too high.
Vibration/Noise
•
•
•
•
•
Figure 30
Loose magnet
Drive magnet rubbing
Pump cavitating from improper suction or feed
Motor or piping not properly secured
Foreign object in impeller
Section VIII - Warranty
Finish Thompson, Inc (manufacturer) warrants this pump product to be
free of defects in materials and workmanship for a period of five years
from date of purchase by original purchaser. If a warranted defect,
which is determined by manufacturer’s inspection, occurs within this
period, it will be repaired or replaced at the manufacturer’s option, provided (1) the product is submitted with proof of purchase date and (2)
transportation charges are prepaid to the manufacturer. Liability under
this warranty is expressly limited to repairing or replacing the product
or parts thereof and is in lieu of any other warranties, either expressed
or implied. This warranty does not apply to normal wear of the product
or components. This warranty does not apply to products or parts
broken due to, in whole or in part, accident, overload, abuse, chemical
attack, tampering, or alteration. The warranty does not apply to any
other equipment used or purchased in combination with this product.
The manufacturer accepts no responsibility for product damage or
personal injuries sustained when the product is modified in any way. If
this warranty does not apply, the purchaser shall bear all cost for labor,
material and transportation.
Figure 31
12. Reinstall the pump on the motor/drive magnet following instruc-
tions found in “Assembly, Pumps without motors,” steps 7-10.
Section VII - Troubleshooting
General Notes:
•
Do not pump liquids containing ferrous metal fines.
•
If magnets decouple, stop pump immediately. Operating the pump
with the magnets decoupled will eventually weaken the magnets.
•
Do not use mismatched drive magnet assemblies (different number of magnets on inner and outer drive magnet assemblies).
•
Contact our Technical Service Department at 1-800-888-3743 or
by e-mail at [email protected] if you have any
questions regarding product operation or repair.
No or Insufficient Discharge
•
•
•
•
•
•
•
•
•
•
Excessive Power Consumption
10. Install the remaining bolts, lock washers and flat washers finger tight.
11. Tighten all the bolts evenly using a star pattern. Tighten to 5 foot-lbs (6.8 N-m).
Air or gas in liquid
Impeller diameter too small
System head lower than anticipated
Motors speed insufficient (too low) or motor rotation incorrect (correct rotation when viewed from the fan end is clockwise)
Air leaks in suction piping
Pump not primed
System head higher than anticipated
Closed valve
Viscosity or specific gravity too high
Motor too large for magnet coupling rating (magnets uncoupled)
Suction lift too high or insufficient NPSH
Clogged suction line or impeller vanes
Motor rotation incorrect (correct rotation when viewed from the
fan end is clockwise)
Manufacturer shall not be liable for incidental or consequential damages including, but not limited to, process down time, transportation
costs, costs associated with replacement or substitution products, labor costs, product installation or removal costs, or loss of profit. In any
and all events, manufacturer’s liability shall not exceed the purchase
price of the product and/or accessories.
Ordering Spare Parts
Spare parts can be ordered from your local distributor. Always refer to
the pump model to avoid error.
Other FTI Products
See our full product range at www.finishthompson.com.
PART NUMBER EXPLANATION
BASE MODEL
COMPONENTS
1. Select base model (E.G. DB10P*)
2. If standard components are not suitable,
enter symbol(s) of alternative components
in any order.
Base Model - -__-__-_______
DB10P
E-Ff-14
DB10P-E-Ff-14 is a DB10P with EPDM O-ring,
fiberglass flanges and 145TC motor.
3. Alternative components - select from chart.
*The model number is on the serial number label
located on the motor adapter. The model number contains a base model that features certain
standard components. Compare the model number on the pump to the chart below to determine
if the pump contains any alternate components.
Model numbers containing “P” have primary
components molded from polypropylene. Model
numbers containing “V” have primary components molded from PVDF.
ALTERNATIVE COMPONENTS
Code
PTFE
T
Alumina Ceramic*
R
Bushing
Graphite Carbon
O-Ring
Viton
EPDM
Simriz*
Kalrez*
E
S
K
Connection
NPT
BSP Threads
Union*
Steel enforced flange*
Fiberglass enforced flange*
B
U
Fs
Ff
Impeller
1
(Max size 60 Hz)
Magnet
DB6/6H/7: 6-Pole
DB8/9/10: 8-Pole
(Upgrade for specific
gravity corrections)
Motor
Adapter
56C NEMA
Base model numbers are: DB6P, DB6V, DB6HP,
DB6HV, DB7P, DB7V, DB8P, DB8V, DB9P, DB9V,
DB10P, DB10V.
SS hardware,
PTFE/ceramic thrust
rings, ceramic shaft,
Buna o-ring vapor
protection kit option
(NEMA only)
Specials
Motor
Not Standard
2
Select impeller from page #
3 4 5 6 7 8
9
10
6-Pole: up to .5 HP/.38 kW (56C, 63,
71 frame)
8-Pole: up to 1 HP/.75 kW (56C, 145,
63, 71, 80 frame)*
10-Pole: up to 2 HP/1.5 kW
(56C,145, 71, 80, 90 frame)*
6p
8p
10p
145TC NEMA
IEC 63/B14
IEC 71/B14
IEC 80/B14
14
64
74
84
IEC 90/B14
IEC 63/B5
IEC 71/B5
IEC 80/B5
IEC 90/B5
94
65
75
85
95
SiC bushing, thrust ring, shaft*
Si
Hastelloy shaft*
Titanium hardware*
Viton o-ring vapor protection kit
(NEMA only)*
EPDM o-ring vapor protection kit
(NEMA only)*
ATEX (PVDF only)*
Non-sparking ring*
Hs
Ti
Vv
Ve
A
Ns
Select Motor Reference Number from Motor
Price Sheets
DB 6 - 10 SPARE PARTS DIAGRAM
DB 6 - 10 SPARE PARTS LIST
DB6/6H/9
DB8
Pump Material
Item
Qty
1
1
2
3
1
1
Description
Polypro
DB7/10
Pump Material
PVDF
Polypro
PVDF
Pump Material
Polypro
PVDF
Housing
NPT Threads & Ceramic Ring
106265
106265-1
106337
106337-1
106252
106252-1
BSP Threads & Ceramic Ring
106265-2
106265-3
106337-2
106337-3
106252-2
106252-3
FRP Flanges & Ceramic Ring
106369
106369-1
106384
106384-1
106365
106365-1
Steel Flanges & Ceramic Ring
106369-2
106369-3
106384-2
106384-3
106365-2
106365-3
Unions & Ceramic Ring
106377
106377-1
106382
106382-1
106367
106367-1
NPT Threads & SiC Ring
106346
106346-1
106381
106381-1
106345
106345-1
BSP Threads & SiC Ring
106346-2
106346-3
106381-2
106381-3
106345-2
106345-3
FRP Flanges & SiC Ring
106370
106370-1
106385
106385-1
106366
106366-1
Steel Flanges & SiC Ring
106370-2
106370-3
106385-2
106385-3
106366-2
106366-3
Unions & SiC Ring
106378
106378-1
106383
106383-1
106368
106368-1
Discharge O-ring
(BSP housings only)
Housing O-ring
EPDM
106304
105918
Viton
106303
105919
Simriz
106306
105921
Kalrez
106305
105920
EPDM
106299
Viton
106298
Simriz
106301
Kalrez
106300
4 - See impellers in table on page 13.
4A
1
Impeller Thrust Ring Only
Filled PTFE
106257
SiC
5
1
Impeller Drive Assembly
With Carbon Bushing
With PTFE Bushing
With Ceramic Bushing
With SiC Bushing
5A
1
106257-1
Impeller Bushing Only
6-Pole
106361
106361-3
N/A
N/A
106361
106361-3
8-Pole
106361-1
106361-4
106361-1
106361-4
106361-1
106361-4
10-Pole
106361-2
106361-5
106361-2
106361-5
106361-2
106361-5
6-Pole
106362
106362-3
N/A
N/A
106362
106362-3
8-Pole
106362-1
106362-4
106362-1
106362-4
106362-1
106362-4
10-Pole
106362-2
106362-5
106362-2
106362-5
106362-2
106362-5
6-Pole
106363
106363-3
N/A
N/A
106363
106363-3
8-Pole
106363-1
106363-4
106363-1
106363-4
106363-1
106363-4
10-Pole
106363-2
106363-5
106363-2
106363-5
106363-2
106363-5
6-Pole
106364
106364-3
N/A
N/A
106364
106364-3
8-Pole
106364-1
106364-4
106364-1
106364-4
106364-1
106364-4
10-Pole
106364-2
106364-5
106364-2
106364-5
106364-2
106364-5
106235
106235-1
Carbon
J102387
Filled PTFE
J102790
Ceramic
J103617
SiC
6
7
1
1
Impeller Shaft
Barrier
J103617-1
Ceramic
106293
SiC
106293-1
Hastelloy C
106293-2
106235
106235-1
10
106235
106235-1
Item
Qty
8
1
9
10
11
12
13
1
1
1
1
1
Description
13B
1
2
DB8
DB7/10
Pump Material
Pump Material
Polypro
PVDF
Polypro
PVDF
Polypro
PVDF
Barrier O-Ring (for vapor
protection kit option for NEMA
motors only)
Buna N Std.
106572
EPDM
106550
Clamp Ring
STD
106246
106246-1
106246
106246-1
106246
106246-1
Bronze Ring
106521
106521-1
106521
106521-1
106521
106521-1
ATEX
N/A
106521-1
N/A
106521-1
N/A
106521-1
Viton
106551
Clamp Ring O-Ring (for vapor
protection kit option for NEMA
motors only)
Buna N
Motor Adapter Column
STD
106248
106248-1
106248
106248-1
106248
106248-1
ATEX
N/A
106248-2
N/A
106248-2
N/A
106248-2
Motor Adapter O-Ring (for
vapor protection kit option for
NEMA motors only)
106548
EPDM
106372
Viton
J103954
Buna N
106549
EPDM
106373
Viton
106374
6-Pole
106283
8-Pole
106283 -1
10-Pole
106283-2
145 Frame (Includes Set
Screws and Retaining Ring)
8-Pole
106283-4
10-Pole
106283-5
63 Frame (Includes
Retaining Ring)
6-Pole
106289
8-Pole
106289-1
71 Frame (Includes
Retaining Ring)
6-Pole
106286
8-Pole
106286-1
10-Pole
106286-2
80 Frame (Includes
Retaining Ring)
8-Pole
106292-1
10-Pole
106292-2
90 Frame (Includes
Retaining Ring)
10-Pole
106292-5
Retaining Ring Only
56C Frame
105708
145 Frame
105709
63 Frame
106310
71 Frame
106309
80 Frame
105711
90 Frame
105712
Outer Drive Magnet Assembly
56C Frame (Includes Set
Screws and Retaining Ring)
13A
DB6/6H/9
Pump Material
Set Screws (NEMA Motor Only)
J101084
11
Item
Qty
Description
DB6/6H/9
DB8
DB7/10
Pump Material
Pump Material
Pump Material
Polypro
1
Motor Adapter Flange (IEC
motor only)
Polypro
PVDF
Polypro
106271
106271-1
106271
106271-1
106271
106271-1
80 Fr B14
105724-1
105724-2
105724-1
105724-2
105724-1
105724-2
90 Fr B14
105724-3
105725-1
90 Fr B14
ATEX
105725-2
105724-3
105725-1
105725-3
105725-2
105724-3
105725-1
105725-3
63 Fr B5
106272
106272-1
106272
106272-1
106272
106272-1
71 Fr B5
106273
106273-1
106273
106273-1
106273
106273-1
80/90 Fr B5
106274
106274-1
106274
106274-1
106274
106274-1
Hardware
Stainless Steel
Titanium
6
Housing Bolt
J102789
106308
16
6
Housing Lock Washer
J102282
J103847
17
6
Housing Flat Washer
105767
105768
18
4
Clamp Ring Flatwasher
105767
105768
19
4
Clamp Ring Lockwasher
J102282
J103847
20
4
Clamp Ring Bolt
105770
105770
21
1
Drive Bolt (IEC otors only)
63 Frame
106314
106315
71 Frame
106312
106313
80 Frame
105765
105766
90 Frame
105770
105771
63 Frame
106322
106323
71 Frame
106320
106321
80 Frame
J100672
J104203
90 Frame
J102282
J103847
63 Frame
106318
106319
71 Frame
106316
106317
90 Frame
105722
105773
23
1
1
Drive Lockwasher (IEC motors
0nly)
Drive Flatwasher (IEC Motors
Only)
24
4
Motor Adapter Bolt
J100114
106311
25
4
Motor Adapter Lockwasher
J100115
J104206
26
4
Motor Adapter Flatwasher
J100128
J104207
27
4
Motor Adapter Flange Bolt (IEC 63 Frame
frames only)
71 Frame
106348
106349
105765
105766
80 Frame
105765
105766
90 Frame
105770
105771
63 Frame
J103637
106350
71 Frame
J100672
J104203
80 Frame
J100672
J104203
90 Frame
J102282
J103847
63 Frame
J103638
106351
71 Frame
J100113
J104204
80 Frame
J100113
J104204
90 Frame
J101293
J103845
28
29
4
4
Motor Adapter Lockwasher
(IEC frames only)
Motor Adapter Flatwasher (IEC
frames only)
105725-2
105725-3
15
22
PVDF
63/71 Fr B14
80 Fr B14
ATEX
14
PVDF
12
Model
Thrust
Rg Mat’l
DB6
Impeller Diameter (in.)
PTFE
Silicon
Carbide
DB6H
Silicon
Carbide
Silicon
Carbide
DB8
Silicon
Carbide
DB9
Silicon
Carbide
DB10
Silicon
Carbide
3.50
#5
3.25
#6
3.00
#7
#8
#9
2.75
N/A
N/A
106356
106356-2
106356-4
106356-6
N/A
N/A
PVDF
106356-5
106356-7
106356-9
106356-1
106356-3
106356-5
106356-7
N/A
N/A
Polypro
106357-4
106357-6
106357-8
106357
106357-2
106357-4
106357-6
N/A
N/A
PVDF
106357-5
106357-7
106357-9
106357-1
106357-3
106357-5
106357-7
N/A
N/A
3.50
N/A
3.88
3.63
3.38
3.12
4.18
4.00
3.75
Polypro
106536
106536-2
106536-4
106536-6
106358
106358-2
106358-4
106358-6
N/A
PVDF
106536-1
106536-3
106536-5
106536-7
106358-1
106358-3
106358-5
106358-7
N/A
Polypro
106537
106537-2
106537-4
106537-6
106359
106359-2
106359-4
106359-6
N/A
PVDF
106537-1
106537-3
106537-5
106537-7
106359-1
106359-3
106359-5
106359-7
N/A
3.18
3.00
2.75
3.63
3.38
3.12
N/A
N/A
N/A
Polypro
106354-4
106354-8
106354-10 106354
106354-2
106354-6
N/A
N/A
N/A
PVDF
106354-5
106354-9
106354-11 106354-1
106354-3
106354-7
N/A
N/A
N/A
Polypro
106355-4
106355-8
106355-10 106355
106355-2
106355-6
N/A
N/A
N/A
PVDF
106355-5
106355-9
106355-11 106355-1
106355-3
106355-7
N/A
N/A
N/A
3.50
N/A
3.63
3.38
3.12
2.88
4.18
4.00
3.75
Polypro
106379-8
106379-10 106379-12 106379-14
106379
106379-2
106379-4
106379-6
N/A
PVDF
106379-9
106379-11 106379-13 106379-15
106379-1
106379-3
106379-5
106379-7
N/A
Polypro
106380-8
106380-10 106380-12 106380-14
106380
106380-2
106380-4
106380-6
N/A
PVDF
106380-9
106380-11 106380-13 106380-15
106380-1
106380-3
106380-5
106380-7
N/A
4.18
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Polypro
106358
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
PVDF
106358-1
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Polypro
106359
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
PVDF
106359-1
Impeller Diameter (in.)
PTFE
2.50
#4
106356-8
Impeller Diameter (in.)
PTFE
2.75
#3
106356-6
Impeller Diameter (in.)
PTFE
3.00
#2
106356-4
Impeller Diameter (in.)
PTFE
#1
Polypro
Impeller Diameter (in.)
PTFE
DB7
Impel.
Mat’l
Impeller Assemblies
3.75
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
3.50
3.25
3.00
4.18
4.00
3.75
3.50
3.25
Polypro
106352-4
106352-6
106352-8
106352-10
106352
106352-2
106352-4
106352-6
106352-8
PVDF
106352-5
106352-7
106352-9
106352-11
106352-1
106352-3
106352-5
106352-7
106352-9
Polypro
106353-4
106353-6
106353-8
106353-10
106353
106353-2
106353-4
106353-6
106353-8
PVDF
106353-5
106353-7
106353-9
106353-11
106353-1
106353-3
106353-5
106353-7
106353-9
Part Number 106577, R0
Order fax: 814-459-3460
Tech Service: 800-888-3743
Literature ID No. FT07-975, R1
TABLE OF CONTENTS
Description
Page Number
Important Information............................................................................................................. 3
Chemical Reaction Disclaimer................................................................................................. 3
Safety Precautions.................................................................................................................. 3
Installation/Operation Precautions.......................................................................................... 3
Safety Precautions for ATEX Pumps....................................................................................... 4
Temperature Classifications.................................................................................................... 4
DB11/15 Capabilities............................................................................................................... 4
DB11/15 OIM Section I - Assembly......................................................................................... 5
DB11/5 OIM Section II - Installation....................................................................................... 6
DB11/15 OIM Section III - Start-up and Operation.................................................................. 7
DB11/15 OIM Section IV - Maintenance.................................................................................. 7
DB11/15 OIM Section V - Disassembly.................................................................................7-10
DB11/15 OIM Section VI - Reassembly.................................................................................. 10
Part Number Explanation....................................................................................................... 11
DB11/15 OIM Exploded View - Parts Drawing....................................................................... 12
DB11/15 OIM Parts Table.....................................................................................................13-15
DB11/15 OIM Section VII - Troubleshooting.......................................................................... 16
DB11/15 OIM Section VIII - Warranty.................................................................................... 16
IMPORTANT INFORMATION - READ ME FIRST
Model Number and Serial Number
Record the model number and serial number below for future reference. This is important information when ordering replacement
parts or when technical assistance is required. The numbers are found on a label located on the motor adapter.
MODEL NUMBER ___________________________
SERIAL NUMBER __________________________
Chemical Reaction Disclaimer
The user must exercise primary responsibility in selecting the product’s materials of construction which are compatible with the fluid(s) that
come(s) in contact with the product. The user may consult Finish Thompson, Inc. (manufacturer) and a manufacturer’s representative/distributor agent to seek a recommendation of the product’s material of construction that offers the optimum available chemical compatibility.
However neither manufacturer nor agent shall be liable for product damage or failure, injuries, or any other damage or loss arising out
of a reaction, interaction or any chemical effect that occurs between the materials of the product’s construction and fluids that come into
contact with the product’s components.
Safety Precautions
WARNING: READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND OPERATING THIS UNIT. FAILURE TO FOLLOW THESE PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH.
WARNING: Magnetic field hazard. This pump contains powerful magnets. Exposed magnets (pump not connected to motor) produce
powerful magnetic fields. Individuals with cardiac pacemakers, implanted defibrillators, other electronic medical devices, metallic prosthetic heart valves, internal wound clips (from surgery), metallic prosthetic devices or sickle cell anemia must not handle or be in the proximity of the magnets contained inside the pump. Consult a health care provider for specific recommendations before work-
ing with this pump.
WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommended procedures. The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end together. Do not place fingers between the mating surfaces of the motor and wet ends to avoid injuries. Keep the drive magnet and impeller assembly away from metal chips or particles.
WARNING: Hot surfaces. DB Series pumps are capable of handling liquids with temperatures as high as 220ºF (104ºC). This may cause the outer areas of the pump to become hot as well and could cause burns.
WARNING: Rotating Parts. This pump has components that rotate while in operation. Follow local safety standards for locking out the motor from the power supply during maintenance or service.
WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals. Always wear protective clothing, eye protection and follow standard safety procedures when handling corrosive or personally harmful materials. Proper procedures should be followed for draining and decontaminating the pump before disassembly and inspection of the pump. There may be small quantities of chemicals present during inspection.
WARNING: The pump and associated components are heavy. Failure to properly support the pump during lifting and movement could result in serious injury or damage to the pump and components.
WARNING: Never run pump at less than minimum flow or with the discharge valve closed. This could lead to pump failure.
Installation/Operation Precautions
CAUTION: This pump should never be operated without liquid in the casing. It is recommended that run dry protection be used. Optional electronic power monitors are available to help protect against run dry. If the pump has a PTFE, ceramic or silicon carbide bushing, IT CANNOT BE RUN DRY WITHOUT CAUSING DAMAGE TO THE PUMP. However, the pump can operate without liquid in the casing if the pump has a carbon bushing. The exact length of time the pump can operate dry with a carbon bushing varies with operating conditions and environment.
CAUTION: Never start or operate with a closed suction valve. Never operate with a closed discharge valve.
CAUTION: Always provide adequate NPSHa (net positive suction head available). It is recommended to provide at least 2 feet
(61 cm) above the NPSHr (net positive suction head required).
CAUTION: If pump is used on variable speed drive, do not exceed the frequency for which the pump was designed (for example, if the pump is a 50 Hz model, do not exceed 50 Hz).
CAUTION: Use of a power monitor is strongly recommended for pumps with ceramic, PTFE or silicon carbide bushings. The power monitor will stop the pump and help prevent damage if the pump should run dry. ATEX certified pumps MUST use a power
monitor.
Safety Precautions for ATEX Pumps
CAUTION: Proper o-ring material must be chosen for the fluid being pumped. Improper material selection could lead to swell-
ing and be a possible source of leaks. This is the responsibility of the end user.
WARNING: The pump must be checked for leaks on a regular basis. If leaks are noticed, the pump must be repaired or replaced
immediately.
WARNING: The pump must be cleaned on a regular basis to avoid dust buildup greater than 5 mm.
WARNING: ATEX pumps must use a power monitor, flow switch, pressure switch or similar device to help protect against dry running, closed discharge valve and decoupling. Any of these conditions could lead to a rise in surface temperature of the pump.
Temperature Classification
The surface temperature of the DB Series pumps depends upon the temperature of the fluid that is being pumped. The following
chart lists different fluid temperatures and the corresponding pump surface temperature.
FluidTemperature
Maximum Surface Temperature
Temperature
Class
Maximum Allowable
Surface Temperature
70º F (27º C)
131º F (55º C)
T6
85º C
170º F (85º C)
168º F (76º C)
T5
100º C
220º F (104º C)
183º F (84º C)
T4
135º C
DB11/15 Capabilities
Maximum Working Pressure:
Maximum Working Pressure:
Maximum Viscosity:
Maximum Temperature:
90 psi (6.2 bar) (models with o-ring)
50 psi (3.5 bar) (models with Gylon® gasket)
150 cP
Polypropylene -180º F (82º C); PVDF – 220º F (104º C)
Note: Maximum temperature is application dependent.
Consult a chemical resistance guide or the chemical manufacturer for chemical compatibility and temperature limits.
Solids: Maximum particle size is 100 microns for slurries and 1/64” (.4 mm) for infrequent particles. Maximum hardness is 80 HS.
Maximum concentration is 10% by weight. If solids are being pumped, it is recommended that the pump have either ceramic or for
best results, silicon carbide components. Pumping solids may lead to increased wear.
Minimum Allowable Flow Rate:
Do not allow the flow rate to drop below the minimum flow rate listed in the chart below.
Model
3450 rpm
1725 rpm
2900 rpm
1450 rpm
DB11
4 gpm (.9 m3/hr)
2 gpm (.5 m3/hr)
.76 m3/hr (3.4 gpm)
.38 m3/hr (1.7 gpm)
DB15
5 gpm (1.1 m3/hr)
2.5 gpm (.6 m3/hr)
.95 m3/hr (4.2 gpm)
.48 m3/hr (2 gpm)
Maximum Allowable Motor Power:
Do not exceed the maximum power rating for the pump coupling.
Standard coupling for the DB11 is 6-pole; standard coupling for the DB15 is 8-pole.
6-pole coupling
8-pole coupling
10-pole coupling
=
=
=
2 horsepower (1.5 kW)
3 horsepower (2.2 kW)
5 horsepower (4 kW)
DB11/15 ASSEMBLY, INSTALLATION & OPERATION
Unpacking and Inspection
Unpack the pump and examine for any signs of shipping damage. If damage is detected, save the packaging and notify the carrier immediately.
Section I - Assembly
Pumps with Motors
NOTE: Make sure the motor shaft is clean and free of burrs. The outer drive is precision machined and has a bore tolerance of +.0005/-0 inch.
5. Slide the outer drive magnet assembly (item 9) onto the motor shaft until the motor shaft contacts the snap ring in the bore of the drive. Figures 4 and 5.
Proceed to “Installation” Section.
Pumps Without Motors
NOTE: 184TC and 100/112 frame motors must have feet.
Tools Required - Metric socket or wrench set, 9/16” socket or wrench and 3/16” Allen Wrench (NEMA motors only).
1. Remove the pump, drive magnet assembly and hardware package from the carton. Do not remove the shipping plug until after the pump has been installed on the motor.
CAUTION: Keep away from metallic particles, tools, and electronics.
Drive magnets MUST be free of metal chips.
WARNING: Keep the drive magnet away from the open end of the motor adapter and barrier. Strong magnetic attraction could allow the drive hub to enter the motor adapter resulting in injury or damage.
2.Place motor on the fan end. For
56C/145TC and B5 frame motors go to
step 4. See figure 1.
Figure 4
6. Secure the drive on the motor shaft.
WARNING: Be careful, magnets will try to attract tools.
Figure 1
3. For 184 NEMA and IEC motors only -
install the motor adapter flange (item 10) on the motor face using bolts, lock washers and flat washers (items 21,
22, 23). See figure 2.
Metric Motors: Secure the drive to the motor shaft using bolt, lock washer and flat washer (items 18, 19, 20). Thread the bolt into the end of the motor shaft (while holding the outer drive to prevent it from turning). See figure 6.
Tighten the bolt to the following:
80 frame (M6) = 90 in-lb (10.2 N-m)
90
frame
(M8)
=
130 in-lb (14.7 N-m)
100/112 frame (M10)= 240 in-lb (27.1 N-m)
NEMA Motors: Install set screws (item 9A) into threaded holes on the side of the outer drive magnet assembly. Using
a 3/16” Allen wrench, tighten to 228 in-lbs. (25.8 N-m).
See figure 7.
Torque bolts to the following:
80 frame (M6)
= 90 in-lb (10.2
N-m)
90/100/112 frame (M8) = 130 in-lb (14.7 N-m)
184 NEMA (1/2”)
= 480 in-lb (54.3 N-m)
Figure 2
Figure 6 - IEC Drive
Figure 7 - NEMA Drive
Note: Apply anti-seize compound on threads of the bolts.
Figure 5
4. Coat the motor shaft with anti-seize compound. Insert key supplied with motor into keyway on motor shaft. See figure 3.
Figure 3
Piping
7. Install the pump end on the motor/drive magnet assembly. With the motor facing upright, align the pump feet so that the motor feet and pump feet are on the same side.
CAUTION: The NPSH available to the pump must be
greater than the NPSH required. Filters, strainers and any other
fittings in the suction line will lower the NPSH available
and should be calculated into the application.
Tip the pump end at an angle (discharge is approximately 45º) so that it is just touching the edge of the outer drive magnet assembly. See figure 8.
Carefully lower the pump onto the drive magnet assembly by tipping discharge forward to 90º and dropping straight down. The last 3-4 inches (8-10 cm) before the pump reaches the motor will have STRONG magnetic attraction between the pump and outer drive magnet assembly.
Figure 8
• Install the pump as close to the suction source as possible.
• Support the piping independently near the pump to eliminate any strain on the pump casing. In addition, the piping should be aligned to avoid placing stress on the pump casing.
• The suction side of the pump should be as straight and short as possible to minimize pipe friction.
• Keep bends and valves at least ten pipe diameters away from the suction and discharge.
• The suction line should be at least as large as the suction
inlet port or one pipe size larger so that it does not affect the NPSHa. Do not reduce the suction line size.
• The suction line should not have any high spots. This can
8. Secure the pump to the motor with (4) 3/8” bolts, lock create air pockets. The suction piping should be level or washers and flat washers (items 15,16,17). See figures 9 slope slightly upward to the pump.
and 10.
• A check valve and control valve (if used) should be NOTE: Apply anti-seize compound on threads of bolts.
installed on the discharge line. The control valve is used for regulating flow. An isolation valves on the suction and NOTE: B5 motors with clearance holes will require discharge are used to make the pump accessible for customer supplied hardware
maintenance. The check valve helps prevent the pump against damage from water hammer. This is particularly important when the static discharge head is high.
Figure 9
Figure 10
9. Remove the shipping plug from the pump suction.
10. Rotate the motor fan to ensure that there is no binding in the pump.
11. Proceed to Installation Section
Section II - Installation
Mounting
Pump foot should be securely fastened to a solid foundation. If the pump was received with plastic shipping shims, these shims may be used as additional support for the motor feet (though not required).
Note: B5 pumps with 100/112 frame do not include a pump foot.
• If flexible hose is preferred, use a reinforced hose rated for the proper temperature, pressure and chemical resistance against the fluid being pumped.
• The suction valve must be completely open to avoid restricting the suction flow.
• It is advisable to install a flush system in the piping to allow the pump to be flushed before the pump is removed from service.
NOTE: The pump is provided with a provision for a customer installed ¼” drain in the impeller housing. See the Drain Installation Section for details.
• For units in a suction lift system, install appropriate piping in the discharge to allow priming of the pump (DB11/15 models are not self-priming).
• When installing pumps with flanges, we recommend use of
low seating stress gaskets such as Gore-Tex® or Gylon® (expanded PTFE).
Motor/Electrical
Flush Systems
Install the motor according to NEC requirements and local electrical codes. The motor should have an overload pro-
tection circuit.
CAUTION: Some fluids react with water; use compatible flushing fluid.
1. Turn off the pump.
Wire the motor for clockwise rotation when facing the fan end of the motor.
2. Completely close the suction and discharge valves.
3. Connect flushing fluid supply to flush inlet valve.
CAUTION: Do not operate the pump to check rotation until the pump is full of liquid.
Check all electrical connections with the wiring diagram on the motor. Make sure the voltage, frequency, phase and amp draw comply with the supply circuit.
4. Connect flushing fluid drain to flush drain valve.
Optional Drain Installation
If utilized, verify that the power monitor has been properly installed
according to the manufacturers instructions.
1. Remove the impeller housing from the pump assembly.
To verify correct rotation of the motor:
1. Install the pump into the system.
2. Fully open the suction and discharge valves.
3. Allow fluid to flow into the pump. Do not allow the pump to run dry (ceramic, PTFE and silicon carbide bushings can’t be run dry without damage to pump components).
5. Open flushing inlet and outlet valves. Flush system until the pump is clean.
2. Clamp the impeller housing to a drill press table.
3. Using a 7/16” drill and the molded boss as a guide, drill completely through the molded boss into the interior of the impeller housing. De-burr the hole on the inside of the impeller housing.
CAUTION - Do not tap too deep or the impeller housing may be damaged.
4. Jog the motor (allow it to run for 1-2 seconds) and observe the rotation of the motor fan. Refer to the direc-
tional arrow molded into the pump casing if necessary.
4. Using a 1/4” NPT tap, tap the hole in the molded boss to the appropriate depth.
NOTE: A pump running backwards will pump but at a greatly reduced flow and pressure.
5. Install the drain plug or valve, being careful not to overtighten.
Section III - Start-up and Operation
Section IV - Maintenance
Recommended maintenance schedule
1. This pump must be filled from a flooded suction tank (gravity) or primed with liquid from an outside source. The DB11/15 is not self-priming.
The recommended maintenance schedule depends upon the
nature of the fluid being pumped and the specific application. If the pump is used on a clean fluid, it is recommended
that the pump be removed from service and examined after
six months of operation or after 2,000 hours of operation. If
the pump is used on fluids with solids, high temperatures or
other items that could cause accelerated wear, then this initial
examination should be sooner.
2. Open the inlet (suction) and discharge valves completely and allow the pump to fill with liquid.
3. Close the discharge valve.
4. Turn the pump on. Slowly open the discharge valve. Adjust the flow rate and pressure by regulating the discharge valve. Do not attempt to adjust the flow with the suction valve.
5. Use of a power monitor is strongly recommended for pumps with ceramic, PTFE or silicon carbide bushings. The power monitor will stop the pump and help prevent damage if the pump should run dry. ATEX certified pumps MUST use a power monitor.
Shutdown
Use the following procedure to shutdown the pump.
After the initial examination of the internal components and wear items are measured, a specific maintenance schedule can be determined. For best results, it is recommended that the pump be removed from service annually for examination.
Section V - Disassembly
WARNING: Rotating Parts. This pump has components that rotate while in operation. Follow local safety stand-
ards for locking out the motor from the power supply during maintenance or service.
1. Slowly close the discharge valve.
2. Turn off the motor.
3. Close the suction valve.
WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals.
Always wear protective clothing, eye protection and follow standard safety procedures when handling corrosive or personally harmful materials. Proper procedures should be followed for draining and decontaminating the pump before
disassembly and inspection of the pump. There may be small
quantities of chemicals present during inspection.
WARNING: Magnetic force hazard. This pump should only
Figure 12
be disassembled and assembled using the recommended
3. Place pump on bench with housing facing up. Remove procedures. The magnetic attraction is powerful enough to
(8) 10 mm housing bolts, lock washers and flat washers rapidly pull the motor end and the wet end together. Do not
(items 12, 13, 14). See figure 13.
place fingers between the mating surfaces of the motor and
wet ends to avoid injuries. Keep the drive magnet and impeller
assembly away from metal chips or particles.
1. Stop the pump, lock out the motor starter, close all the valves that are connected to the pump, and drain/decon-
taminate the pump.
WARNING: The pump must be thoroughly flushed of any hazardous materials and all internal pressure relieved prior to opening the pump. Allow the pump to reach ambient temperatures prior to performing maintenance.
Figure 13
4. Pull housing (item 1) straight up to remove. Inspect 2. For pumps with motors 2 horsepower (1.5 kW) or smaller, housing for signs of wear or damage. Look for signs of securely clamp the pump feet to the bench. Remove the rubbing, cracking on thrust ring, or damage to front shaft (4) bolts, lock washers and flat washers (items 15,16,17) support. See figure 14.
securing the pump to the motor. See figure 9.
Figure 9
Firmly grab the motor and pull straight back to disengage the motor and pump. See figure 11.
Figure 14
5. Remove impeller/inner drive assembly (items 4A, 4, 5, 5A). Inspect impeller and drive for signs of wear or damage. Look for signs of rubbing or damage and wear to the im-
peller and inner drive. See figure 15.
Figure 11
For pumps with motors 3 HP (2.2 kW) or larger, place the pump and motor on the floor. Remove the (4) bolts, lock washers and flat washers (items 15,16,17) securing the
pump to the motor. See figure 9. Make sure the motor is
on the fan end with the pump facing up. Pull straight up to remove the pump from the motor. See figure 12.
Figure 15
Check the impeller thrust ring and bushing for wear. See figure 16.
Figure 19
Figure 16
6. Remove the impeller shaft (item 6) from the barrier and check for signs of cracking, chipping, scoring or wear. See figure 17.
3. To reinstall the drive or a new drive follow the instructions from Section I - Assembly, Pumps without Motors, steps 4-6.
Thrust Ring Replacement
1. Thrust ring (item 4A) is held in-place with a snap fit with a ridge. Using a razor knife or side cutters, cut a notch out of the thrust ring. Pull ring up and out of the holder. See figures 20-21.
Figure 17
7. Remove the barrier (item 7) from the motor adapter (item 8). Make sure the spindle has been removed. If neces-
sary, gently tap on the backside of the barrier with a soft rod (wood, plastic, etc.). Inspect the inside and outside of the barrier for signs of rubbing. See figure 18.
Figure 21
Figure 20
2. To reinstall, align the two flats on the thrust ring with the flats in the bore of the impeller. Using a piece of wood,
press into place using an arbor press until the thrust ring is
completely seated in the impeller.
Bushing Replacement
Figure 18
8. Remove the o-ring (item 2) from the barrier and inspect for chemical attack, swelling, brittleness, cuts, etc.
9. Visually inspect the outer drive (item 9) for rubbing, damage, corrosion or loose magnets.
Outer Drive Replacement
1. Remove the setscrews (item 9A) from the side of the drive (NEMA motors) or the bolt, lock washer and flat washer (items 18, 19, 20) from the center of the drive
(metric motors).
1. To remove the bushing, place the impeller/inner drive assembly in an arbor press. Insert a 3/4” diameter plastic or wood shaft through the eye of the impeller and press the bushing out.
2. To replace the bushing (item 5A), place the top of the impeller on an arbor press with the thrust ring face down. Insert the front of the bushing (figure 22) into the center of the impeller/inner drive magnet assembly, aligning the flat on the bushing with the flat in the bore of the inner drive magnet. Using a soft arbor, press into place until the bushing reaches the shoulder molded into the inner drive (figures 23 and 24).
WARNING: Be careful, tools will want to be attracted to the magnets.
Figure 22
2. Remove the drive magnet from the motor shaft by gently prying up from the bottom of the drive. See figure 19.
Figure 23
Figure 24
Impeller Replacement
3. Install impeller shaft (item 6) into barrier by aligning the flats on the shaft with the ones in the barrier. Make sure it is com-
Caution: Do not damage the outer surface of the inner drive pletely seated. See figure 27.
magnet during impeller replacement.
Using the two slots provided, insert a flat blade screw driver into them and pry the impeller (items 4, 4A) up from the body of the inner drive magnet (items 5, 5A). Once a gap has been established, work around the perimeter to evenly increase the gap until the impeller can be removed. See figure 25.
Figure 27
4. Carefully install the impeller/inner drive assembly (items 4, 4A, 5, 5A) by sliding it over the impeller shaft in the barrier. It is normal for the impeller/inner drive to pop up a slight amount due to magnetic forces. See figures 28 and 29.
Figure 25
To install a new impeller, place the inner drive magnet assem-
bly face up (splines facing up) on an arbor press. Align the spines in the impeller with the ones in the bore on the inner drive magnet. Place a piece of wood over the top of the
impeller thrust ring. Using an arbor press, push down on the impeller until it is completely seated in the inner drive.
Figure 29
Figure 28
Section VI - Reassembly
1. Install barrier (item 7) into motor adapter (item 8). Press firmly to ensure that the barrier is completely seated. See figure 26
5. Install the impeller housing (item 2). Make sure the discharge is in the correct orientation in relation to pump foot. Align the shaft in the barrier with the front shaft support in the impeller housing. Press down to push the impeller/inner drive magnet assembly into position. Holding the impeller housing with one hand, install and finger-tighten two bolts, lock washers and flat washers (items 12, 13, 14) in opposite locations. See figure 30.
Figure 26
Figure 30
2. Install o-ring (item 2) or Gylon® gasket in groove in barrier.
Note: If pump has Gylon gasket, a new gasket should be used
when the pump is reassembled.
6. Install the remaining bolts, lock washers and flat washers finger tight.
7. Tighten all the bolts evenly using a star pattern. Tighten to 20 foot-lbs (27 N-m).
8. Reinstall the pump on the motor/drive magnet following instructions found in “Assembly, Pumps Without Motors,”
steps 7-11.
10
PART NUMBER EXPLANATION
1. Select Base Model (Example: DB11P) *
2. If Standard Components aren’t suitable, enter symbol(s) of alternative components in any order.
Base Model -
-
-
-
-
DB11P -
E - U - 14
(Example: DB11P-E-U-14 is a DB11P with EPDM o-ring, unions and 145TC motor adapter.)
3. Alternative Components - select from below
*The model number is on the serial number label located
on the motor adapter. The model number contains
a base model that features certain standard compo nents. Compare the model number on the pump to the
chart below to determine if the pump contains any
alternate components. Model numbers containing
“P” have primary components molded from polypro pylene. Model numbers containing “V” have primary
components molded from PVDF.
Base Model Numbers: DB11P, DB11V, DB15P, DB15V
11
DB11 Exploded View - Parts Diagram
12
DB11
DB15
Pump Material
Pump Material
Item Qty Description
Polypropylene
PVDF
Polypropylene
PVDF
1
1 Standard Housing
NPT Threads & Alumina Ceramic Ring
105688-1
105688-3
105739-1
105739-3
BSP Threads & Alumina Ceramic Ring
105688-5
105688-7
105739-5
105739-7
Steel Flanges & Alumina Ceramic Ring
105744-1
105744-2
105745-1
105745-2
Fiberglass Flanges & Alumina Ceramic Ring
105744-5
105744-6
105745-5
105745-6
Union & Alumina Ceramic Ring
105746-1
105746-3
105747-1
105747-3
NPT Threads & Silicon Carbide Ring
105903
105903-1
105904
105904-2
BSP Threads & Silicon Carbide Ring
105903-4
105903-5
105904-4
105904-6
Steel Flanges & Silicon Carbide Ring
105905
105905-1
105924
105924-1
Fiberglass Flanges & Silicon Carbide Ring
105905-4
105905-5
105924-4
105924-5
Unions & Silicon Carbide Ring
105906
105906-2
105923
105923-2
1
1 Gasket Housing
NPT Threads & Alumina Ceramic Ring
105688-2
105688-4
105739-2
105739-4
Steel Flanges & Alumina Ceramic Ring
105744-3
105744-4
105745-3
105745-4
Fiberglass Flanges & Alumina Ceramic Ring
105744-7
105744-8
105745-7
105745-8
NPT Threads & Silicon Carbide Ring
105903-2
105903-3
105904-1
105904-3
Steel Flanges & Silicon Carbide Ring
105905-2
105905-3
105924-2
105924-3
Fiberglass Flanges & Silicon Carbide Ring
105905-6
105905-7
105924-6
105924-7
2
1 O-ring/Gasket
3 1 Discharge O-ring (BSP
threaded housings only)
4 1 Impeller Assembly
with PTFE thrust ring
4 1
with silicon carbide
thrust ring
EPDM
105717
Viton®
Simriz®
Kalrez®
Gylon Gasket
EPDM
Viton®
Simriz®
Kalrez®
105716
105719
105718
105721
105918
105919
105718
105921
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
105911
105911-4
105911-6
105911-8
105911-10
105911-2
105911-14
105911-16
105911-18
105911-20
105911-1
105911-5
105911-7
105911-9
105911-11
105911-3
105911-15
105911-17
105911-19
105911-21
105911-12
105916
105916-4
105916-6
105916-8
105916-1
105916-10
105916-12
105916-14
N/A
105911-13
105916-2
105916-5
105916-7
105916-9
105916-3
105916-11
105916-13
105916-15
N/A
#1
#2
105915
105915-4
105915-1
105915-5
105915-12
105917
105915-13
105917-2
13
DB11
DB15
Pump Material
Pump Material
Item Qty Description
Polypropylene
PVDF
Polypropylene
PVDF
Impeller Assembly
4
1 with silicon carbide
#3
105915-6
105915-7
105917-4
105917-5
thrust ring
#4
105915-8
105915-9
105917-6
105917-7
#5
105915-10
105915-11
105917-8
105917-9
#6
105915-2
105915-3
105917-1
105917-3
#7
105915-14
105915-15
105917-10
105917-11
#8
105915-16
105915-17
105917-12
105917-13
#9
105915-18
105915-19
105917-14
105917-15
#10
105915-20
105915-21
N/A
N/A
4A 1 Impeller Thrust Ring Only
Filled PTFE
105694-1
Silicon Carbide
105694-3
5
1 Impeller Drive Assembly
6-Pole
105913
105913-3
105913
105913-3
with carbon bushing
8-Pole
105913-1
105913-4
105913-1
105913-4
10-Pole
105913-2
105913-5
105913-2
105913-5
6-Pole
105913-6
105913-9
105913-6
105913-9
with PTFE bushing
8-Pole
105913-7
105913-10
105913-7
105913-10
10-Pole
105913-8
105913-11
105913-8
105913-11
6-Pole
105913-12
105913-15
105913-12
105913-15
with alumina ceramic 8-Pole
105913-13
105913-16
105913-13
105913-16
bushing
10-Pole
105913-14
105913-17
105913-14
105913-17
with silicon carbide 6-pole
105913-18
105913-21
105913-18
105913-21
bushing
8-Pole
105913-19
105913-22
105913-19
105913-22
10-Pole
105913-20
105913-23
105913-20
105913-23
5A 1 Impeller Bushing
Carbon
J100977
Filled PTFE
J100977-1
Alumina Ceramic
J100977-2
Silicon Carbide
J100977-3
6 1 Impeller Shaft
Alumina Ceramic
105811-1
Silicon Carbide
105811-2
Hastelloy C
105811-3
7 1
8 1
9 1
Barrier
105689-1
Motor Adapter
Standard (NEMA and IEC/B14)
105734-1
Standard with Bronze Ring
IEC/B5 - 80/90 Frame
105986
IEC/B5 - 100/112 Frame
105985
Drive Magnet Assembly
56C frame includes set
6-Pole
screws and snap ring
8-Pole
145TC frame includes set
6-Pole
screws and snap ring
8-Pole
184TC frame includes set
10-Pole
screws and snap ring
80 frame includes
6-Pole
snap ring
8-Pole
90 frame includes
6-Pole
snap ring
8-Pole
100/112 frame includes
10-Pole
snap ring
14
105689-2
105689-1
105689-2
105734-5
105734-1
105884-1
105986-1
105986
105985-1
105985
105734-5
105986-1
105985-1
105878
105878-1
105878-3
105878-4
105730-9
105882
105882-1
105882-3
105882-4
105730-18
DB11
DB15
Pump Material
Pump Material
Item Qty Description
Polypropylene
PVDF
Polypropylene
PVDF
9A 2 Set Screws- NEMA Motor
Frames Only
J101084
9B 1 Snap Ring
56C Frame
105708
10 1 Motor Adapter Flange
Motor Adapter Flange ATEX
11 1 Foot
12 8
13 8
14 8
15 4
16 4
17 4
18 1
19 1
20 1
21 4
22 4
23 4
24 4
25 4
26 4
145TC Frame
184TC Frame
80 Frame
90 Frame
100/112 Frame
184TC Frame
80 Frame
90 Frame
100/112 Frame
80 Frame
90 Frame
100/112 Frame
Standard
100 Frame
112 Frame
105751-1
105724-1
105725-1
105726-1
105691-1
105691-3
105691-2
105709
105710
105711
105712
105710
105751-2
105751-1
105724-2
105724-1
105725-2
105725-1
105726-2
105726-1
105724-3
105725-3
105726-3
105691-4
105691-1
105691-6
105691-3
105691-5
105691-2
Hardware
DB11/15 Stainless Steel
Housing Bolt
105755
Housing Lockwasher
105757
Housing Flat Washer
105722
Motor Adapter Bolts
J103118
Motor Adapter Lockwashers
J100115
Motor Adapter Flatwashers
J100128
Drive Bolt- 80 Frame IEC
105765
Drive Bolt- 90 Frame IEC
105770
Drive Bolt- 100/112 Frame IEC
105774
Drive Lockwasher- 80 Frame IEC
J100672
Drive Lockwasher- 90 Frame IEC
J102282
Drive Lockwasher- 100/112 Frame IEC
J100115
Drive Flatwasher- 80 Frame IEC
105767
Drive Flatwasher- 90 Frame IEC
105722
Drive Flatwasher- 100/112 Frame IEC
J101360
Motor Adapter Flange Bolts - 184TC Frame
J103782
Motor Adapter Flange Bolts - 80 Frame
J103780
Motor Adapter Flange Bolts - 90 Frame
105770
Motor Adapter Flange Bolts - 100/112 Frame
105770
Lockwasher- Motor Adapter Flange- 184TC Frame
J101023
Lockwasher- Motor Adapter Flange- 80 Frame
J100672
Lockwasher- Motor Adapter Flange- 90 Frame
J102282
Lockwasher- Motor Adapter Flange-100/112 Frame
J102282
Flatwasher- Motor Adapter Flange- 184TC Frame
J103851
Flatwasher- Motor Adapter Flange- 80 Frame
J100113
Flatwasher- Motor Adapter Flange- 90 Frame
J101293
Flatwasher- Motor Adapter Flange - 100/112 Frame
J101293
Foot Bolt
J103780
Foot Lockwasher
J100672
Foot Flatwashers
J100113
15
105751-2
105724-2
105725-2
105726-2
105691-4
105691-6
105691-5
DB11/15 Titanium
105756
105758
105773
105752
J104206
J104207
105766
105771
105775
J104203
J103847
J104206
105768
105773
106200
105761
105764
105771
105771
105762
J104203
J103847
J103847
105763
J104204
J103845
J103845
105764
J104203
J104204
• Foreign matter in impeller
• Leaking valve. Suction lift too high or insufficient NPSHa
Section VII - Troubleshooting
General Notes:
• Do not pump liquids containing ferrous metal fines.
• If magnets decouple, stop pump immediately. Operating the pump with the magnets decoupled will eventually weaken the magnets.
• Power monitors are required and must be used with all ATEX certified pumps.
• Do not use mismatched drive magnet assemblies (differ-
ent number of magnets on inner and outer drive magnet
assemblies).
• Contact our Technical Service Department Phone: 1-800-888-3743
Email: [email protected]
if you have any questions regarding product operation or repair.
No or Insufficient Discharge
• Air leaks in suction piping
• Pump not primed
• System head higher than anticipated
• Closed valve
• Viscosity or specific gravity too high
• Motor too large for magnet coupling rating (magnets uncoupled)
• Suction lift too high or insufficient NPSH
• Clogged suction line or impeller vanes
• Motor rotation incorrect (correct rotation when viewed from the fan end is clockwise)
Insufficient Pressure
• Air or gas in liquid
• Impeller diameter too small
• System head lower than anticipated
• Motors speed insufficient (too low) or motor rotation Excessive Power Consumption
• Head lower than rating
• Excessive flow
• Specific gravity or viscosity too high.
Vibration/Noise
• Loose magnet
• Drive magnet rubbing
• Pump cavitating from improper suction or feed
• Motor or piping not properly secured
• Foreign object in impeller
Section VIII - Warranty
Finish Thompson, Inc (manufacturer) warrants this pump product
to be free of defects in materials and workmanship for a period of
five years from date of purchase by original purchaser. If a warranted defect, which is determined by manufacturer’s inspection,
occurs within this period, it will be repaired or replaced at the
manufacturer’s option, provided (1) the product is submitted with
proof of purchase date and (2) transportation charges are prepaid to
the manufacturer. Liability under this warranty is expressly limited
to repairing or replacing the product or parts thereof and is in lieu
of any other warranties, either expressed or implied. This warranty
does not apply to normal wear of the product or components. This
warranty does not apply to products or parts broken due to, in whole
or in part, accident, overload, abuse, chemical attack, tampering, or
alteration. The warranty does not apply to any other equipment used
or purchased in combination with this product. The manufacturer
accepts no responsibility for product damage or personal injuries
sustained when the product is modified in any way. If this warranty
does not apply, the purchaser shall bear all cost for labor, material
and transportation.
Manufacturer shall not be liable for incidental or consequential
damages including, but not limited to, process down time, transportation costs, costs associated with replacement or substitution
incorrect (correct rotation when viewed from the fan end is products, labor costs, product installation or removal costs, or loss
of profit. In any and all events, manufacturer’s liability shall not
clockwise)
exceed the purchase price of the product and/or accessories.
Loss of Prime
Ordering Spare Parts
• Leak in suction piping
• Foot valve or suction opening not submerged enough
• Foot valve too small or leaking
• Air or gas in liquid
Spare parts can be ordered from your local distributor. Always refer
to the pump model to avoid error.
Part Number 106142, Rev 6
Order fax: 814-459-3460
Tech Service: 800-888-3743
Lit. ID No. FT06-923F. 9-2-08
16
DB22 SERIES
ASSEMBLY, INSTALLATION AND
OPERATION MANUAL
Literature ID No. FT08-1023
TABLE OF CONTENTS
Description
Page Number
Model Number/Serial Number.............................................................................................. 3
Chemical Reaction Disclaimer.............................................................................................. 3
Safety Precautions for ATEX Pumps...................................................................................... 3
Temperature Classification................................................................................................... 4
DB22 Capabilities
Maximum Working Pressure............................................................................................ 5
Maximum Temperature................................................................................................... 5
Solids.............................................................................................................................. 5
Minimum Flow Rate........................................................................................................ 5
Maximum Motor Power................................................................................................... 5
Maximum Specific Gravity............................................................................................... 5
Section I - Assembly............................................................................................................. 6
Section II - Installation.......................................................................................................... 7
Section III - Start-up and Operation
Start-up.......................................................................................................................... 8
Shutdown........................................................................................................................ 8
Flush Systems................................................................................................................. 8
Optional Drain installation................................................................................................ 8
Section IV - Maintenance
Disassembly.................................................................................................................... 8
Outer Drive Replacement................................................................................................. 9
Thrust Ring Replacement................................................................................................ 9
Bushing Replacement...................................................................................................... 10
Impeller Replacement...................................................................................................... 10
Reassembly.................................................................................................................... 10
DB22 Part Number Explanation....................................................................................... 11
DB22 Exploded View Parts Diagram................................................................................. 12
Spare Parts List . ........................................................................................................... 13-15
Troubleshooting............................................................................................................... 16
Section V - Warranty............................................................................................................. 16
Note: Maintenance videos are now available on line at www.finishthompson.com.
For factory assistance with repairs or maintenance, call 1-800-888-3743.
Model Number and Serial Number
Record the model number and serial number below for future reference. This is important information when ordering replacement
parts or when technical assistance is required. The numbers are found on a label located on the motor adapter.
MODEL NUMBER ___________________________
SERIAL NUMBER __________________________
Chemical Reaction Disclaimer
The user must exercise primary responsibility in selecting the product’s materials of construction, which are compatible with the
fluid(s) that come(s) in contact with the product. The user may consult Finish Thompson, Inc. (manufacturer) and a manufacturer’s
representative/distributor agent to seek a recommendation of the product’s material of construction that offers the optimum available chemical compatibility.
However neither manufacturer nor agent shall be liable for product damage or failure, injuries, or any other damage or loss arising
out of a reaction, interaction or any chemical effect that occurs between the materials of the product’s construction and fluids that
come into contact with the product’s components.
Safety Precautions
WARNING: READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND OPERATING THIS UNIT. FAILURE TO FOLLOW THESE
PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH.
WARNING: Magnetic field hazard. This pump contains powerful magnets. Exposed magnets (pump not connected to motor)
produce powerful magnetic fields. Individuals with cardiac pacemakers, implanted defibrillators, other electronic medical devices,
metallic prosthetic heart valves, internal wound clips (from surgery), metallic prosthetic devices or sickle cell anemia must not
handle or be in the proximity of the magnets contained inside the pump. Consult a health care provider for specific recommendations before working with this pump.
WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommended procedures. The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end together. Do not place fingers
between the mating surfaces of the motor and wet ends to avoid injuries. Keep the drive magnet and impeller assembly away from
metal chips or particles, items with magnetic stripes like credit cards and magnetic computer media such as floppy discs and hard
drives.
WARNING: Hot surfaces. This pump is capable of handling liquids with temperatures as high as 220º F (104º C). This may
cause the outer areas of the pump to become hot as well and could cause burns.
WARNING: Rotating Parts. This pump has components that rotate while in operation. Follow local safety standards for locking
out the motor from the power supply during maintenance or service.
WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals. Always wear
protective clothing, eye protection and follow standard safety procedures when handling corrosive or personally harmful materials.
Proper procedures should be followed for draining and decontaminating the pump before disassembly and inspection of the pump.
There may be small quantities of chemicals present during inspection.
WARNING: Never run pump at less than minimum flow or with the discharge valve closed. This could lead to pump failure.
WARNING: The pump and associated components are heavy. Failure to properly support the pump during lifting and movement could result in serious injury or damage to the pump and components.
CAUTION: This pump should never be started without liquid in the casing. If the pump has a PTFE, ceramic or silicon carbide
bushing, IT CANNOT BE RUN DRY WITHOUT CAUSING DAMAGE TO THE PUMP. It is recommended that run dry protection be used.
Optional electronic power monitors are available to help protect against run dry. However, the pump can operate without liquid in
the housing if the pump has a carbon bushing. The exact length of time the pump can operate dry with a carbon bushing varies with
operating conditions and environment.
CAUTION: Never start or operate with a closed suction valve.
WARNING: Operation without priming or against a closed discharge valve can result in high temperatures that can result in
injury or damage to pump components.
CAUTION: Always provide adequate NPSHa (net positive suction head available). It is recommended to provide at least 2 feet
(61 cm) above the NPSHr (net positive suction head required).
CAUTION: If pump is used on variable speed drive, do not exceed the frequency for which the pump was designed (for example,
if the pump is a 50 Hz model, do not exceed 50 Hz).
Safety Precautions for ATEX Pumps
CAUTION: Proper o-ring material must be chosen for the fluid being pumped. Improper material selection could lead to swelling
and be a possible source of leaks. This is the responsibility of the end user.
WARNING: The pump must be checked for leaks on a regular basis. If leaks are noticed, the pump must be repaired or replaced
immediately.
WARNING: The pump must be cleaned on a regular basis to avoid dust buildup greater than 5 mm.
WARNING: ATEX pumps must use a power monitor, flow switch, pressure switch or similar device to help protect against running dry, closed discharge valve and decoupling. Any of these conditions could lead to a rise in surface temperature of the pump.
Temperature Classification
The surface temperature of DB Series pumps depends upon the temperature of the fluid that is being pumped. The following chart
lists different fluid temperatures and the corresponding pump surface temperature.
Fluid Temperature
Maximum Surface
Temperature
Temperature
Class
Maximum Allowable
Surface Temperature
85º F (36º C)
136º F (58º C)
T6
85º C
170º F (77º C)
178º F (81º C)
T5
100º C
220º F (104º C)
203º F (95º C)
T4
135º
DB22 Capabilities
Maximum Working Pressure: 90psi (6.2 bar)
Maximum Temperature: Polypropylene -180º F (82º C); PVDF – 220º F (104º C)
NOTE: Maximum temperature is application dependent. Consult a chemical resistance guide
or the chemical manufacturer for chemical compatibility and temperature limits.
Solids: Maximum particle size is 100 microns for slurries and 1/64” (.4 mm) for occasional solids.
Maximum hardness is 80 HS. Maximum concentration is 10% by weight.
NOTE: If solids are being pumped, it is recommended that the pump have either ceramic or, for best results,
silicon carbide components. Pumping solids may lead to increased wear.
Minimum Allowable Flow Rate - Do not allow the flow rate to drop below 10 gallons per minute (2.3 m3/hr).
Maximum Allowable Motor Power
Do not exceed 7.5 kW (10 horsepower) for 50 Hz, 2900 rpm applications. For 60 Hz, 3450 rpm applications, the pump is capable of
starting a 15 horsepower motor but is limited to a maximum of 13 horsepower (9.7 kW) while running. Use the information in the
chart below to determine the maximum specific gravity capabilities by impeller trim for non-overloading applications. The use of a
power monitor is strongly recommended for 60 Hz applications above 10 horsepower (7.5 kW).
Maximum Specific Gravity for Non-Overloading Applications
2900 rpm (50 Hz)
3450 rpm (60 Hz)
Closed Impeller
Diameter
Maximum
Specific Gravity
Closed Impeller
Diameter
Maximum
Specific Gravity
7.25” (184.2 mm)
1.0
184.2 mm (7.25”)
1.35
7” (177.8 mm)
1.1
177.8 mm (7”)
1.6
6.5” (165.1 mm)
1.5
165.1 mm (6.5”)
1.8
6” (152.4 mm)
1.8
152.4 mm (6”)
1.8
5.5” (139.7 mm)
1.8
139.7 mm (5.5”)
1.8
5” (127.0 mm)
1.8
127.0 mm (5”)
1.8
4.5” (114.0 mm)
1.8
2900 rpm (50 Hz)
3450 rpm (60 Hz)
Open Impeller
Diameter
Maximum
Specific Gravity
Open Impeller
Diameter
Maximum Specific
Gravity
6” (152.4 mm)
1.5
181.0 mm (7.13”)
1.35
5.5” (139.7 mm)
1.8
177.8 mm (7”)
1.5
5” (127.0 mm)
1.8
165.1 mm (6.5”)
1.75
4.5” (114.0 mm)
1.8
152.4 mm (6”)
1.8
139.7 mm (5.5”)
1.8
DB22 Assembly, Installation and Operation
Unpacking and Inspection
Flange hole thread size:
Unpack the pump and examine for any signs of shipping damage. If damage is detected, save the packaging and notify the
carrier immediately.
90 B5 = M10 x 1.5
100/112 B5 = M12 x 1.75
132 B5 = M12 x 1.75
Torque bolts to the following:
90/100/112 B14 frame (M8) = 130 in-lb (14.7 N-m)
132 B14 (M10) frame (M10) = 240 in-lb (27.1 N-m)
90 frame B5 (M10) = 240 in-lb (27.1 N-m)
100/112/132 B5 (M12) = 480 in-lb (54.3 N-m)
Section I - Assembly
Tools Required:
3/8” Allen wrench or ballpoint hex socket, 3/16” Allen wrench,
19 mm hex socket, metric socket set (for pumps with IEC outer
drives)
Pumps with Motors
Proceed to “Installation” Section
Pumps Without Motors
NOTE: All motors must have motor feet
1. Remove the pump, drive magnet assembly and hardware
package from the carton. For 184TC motors proceed to
step 3.
CAUTION: Keep away from metallic particles, tools and
electronics. Drive magnets MUST be free of metal chips.
Figure 1
3. Coat the motor shaft with anti-seize compound. Insert key
supplied with motor into keyway on motor shaft.
NOTE: Make sure the motor shaft is clean and free of burrs.
The outer drive is precision machined and has a bore tolerance of +.0005/-0 inch.
WARNING: Keep the drive magnet away from the open end
of the motor adapter and barrier. Strong magnetic attraction
could allow the drive hub to enter the motor adapter resulting in injury or damage.
4. Slide the outer drive magnet assembly (item 9) onto the motor shaft until the motor shaft contacts the snap ring in the
bore of the drive. Figures 2 and 3.
2. For 213/215 NEMA motors only – Install the o-ring (item
10A) in the groove in the motor adapter. Use small amount
of petroleum jelly (or silicone grease on EPDM o-rings) to
help hold the o-ring in place. Install the larger female rabbet
portion of the motor adapter flange (item 10) on the motor
face. Align the holes in the adapter with the holes in the motor face. See figure 1.
For 90; 100/112; 132 with B5 flange motors
Install flange (item 10) on motor with the side with pockets
(depressions) towards the motor face. Align (4) holes in the
adapter with the holes in the motor face. Install (4) customer
supplied bolts, lock washers and flat washers through the
motor adapter into the motor face.
Figure 2
Figure 3
WARNING: Be careful, magnets will try to attract tools.
Metric Motors: Secure the drive to the motor shaft using
bolt, lock washer and flat washer (items 17, 18, 19). Thread
the bolt into the end of the motor shaft (while holding the
outer drive to prevent it from turning). See figure 4.
Tighten the bolt to the following:
• 90 frame (M8) = 130 in-lb (14.7 N-m)
• 100/112 frame (M10) = 240 in-lb (27.1 N-m)
• 132 frame (M12)
= 480 in-lb (54.3 N-m)
For 90; 100/112; 132 with B14 flange motors
Install flange (item 10) on motor with pockets (depressions)
side towards the motor face. Align (4) holes in the adapter
with the holes in the motor face. Install (4) bolts, lock washers and flat washers (items 20, 21, 22) through the motor
adapter into the motor face. See figure 1.
NEMA Motors: Install set screws (item 9B) into threaded
holes on the side of the outer drive magnet assembly. Using
a 3/16” Allen wrench, tighten to 228 in-lbs (25.8 N-m). See
figure 5.
Section II - Installation
Mounting – Pump foot should be securely fastened to a solid
foundation. If the pump was received with plastic shipping shims,
these may be used as additional support for the motor feet.
Figure 4
CAUTION: The NPSH available to the pump must be
greater than the NPSH required. NPSH available should be
two feet (.6 meters) greater than NPSH required.
Figure 5
5. Install the pump end on the motor/drive magnet assembly.
• Install the pump as close to the suction source as possible.
NOTE: If the pump has the optional o-ring sealing option
(available on 184 and 215 frame pumps only), install the
o-ring (item 8B) in the groove in the motor adapter (motor end). Use small amount of petroleum jelly (or silicone
grease on EPDM o-rings) to help hold the o-ring in place.
• Support the piping independently near the pump to eliminate
any strain on the pump casing. In addition, the piping should
be aligned to avoid placing stress on the pump casing.
• The suction side of the pump should be as straight and
short as possible to minimize pipe friction.
Place the motor/drive on a flat surface with the drive and
motor face hanging over the bench surface. Secure the motor to the bench.
• The suction line should not have any high spots. This can
create air pockets that can reduce pump performance. The
suction piping should be level or slope slightly upward to the
pump.
Firmly grab the pump and slide over the outer drive magnet
until the motor adapter is seated in the rabbet of the motor
(184TC) or the motor adapter flange. The last 4-5” (10-12
cm) will have strong magnetic attraction between the pump
and outer drive magnet. See figures 6 and 7.
• If flexible hose is preferred over pipe, use a reinforced hose
rated for the proper temperature, pressure and is chemically
resistant against the fluid being pumped.
• The suction valve must be completely open to avoid restricting the suction flow.
NOTE: The clearance between the motor adapter and drive
magnet is tight (about .010”/.254 mm).
• When installing pumps with flanges, we recommend use
of low seating stress gaskets such as Gore-Tex or Gylon
(expanded PTFE).
Motor/Electrical
Install the motor according to NEC requirements and local electrical codes. The motor should have an overload protection circuit.
Wire the motor for clockwise rotation when facing the fan end of
the motor.
Figure 6
CAUTION: Do not operate the pump to check rotation until
the pump is full of liquid.
Figure 7
6. Secure the pump to the motor using (4) 1/2” socket head
cap screws, lock washers and flat washers (items 14, 15,
16). Use 3/8” Allen wrench or 3/8” hex socket on universal
joint. See figures 8 and 9.
Check all electrical connections with the wiring diagram on the
motor. Make sure the voltage, frequency, phase and amp draw
comply with the supply circuit.
To verify correct rotation of the motor:
1. Install the pump into the system.
2. Fully open the suction and discharge valves.
3. Allow fluid to flow into the pump. Do not allow the pump to
run dry (ceramic, PTFE and silicon carbide bushings can’t be
run dry without damage to pump components).
Figure 8
4. Jog the motor (allow it to run for 1-2 seconds) and observe
the rotation of the motor fan. Refer to the directional arrow
molded into the pump casing if necessary.
Figure 9
7. Rotate the motor fan to ensure that there is no binding in
the pump.
NOTE: A pump running backwards will pump but at a greatly
reduced flow and pressure.
8. Proceed to Installation Section
Section III - Start-up and Operation
Section IV - Maintenance
Start-up and Operation
Recommended maintenance schedule
1. This pump must be filled from a flooded suction tank (gravity) or primed with liquid from an outside source. The DB22
is not self-priming.
The recommended maintenance schedule depends upon the
nature of the fluid being pumped and the specific application.
If the pump is used on a clean fluid, it is recommended that the
pump be removed from service and examined after six months
of operation or after 2,000 hours of operation. If the pump is
used on fluids with solids, high temperatures or other items
that could cause accelerated wear, then this initial examination
should be sooner.
2. Open the inlet (suction) and discharge valves completely
and allow the pump to fill with liquid.
3. Close the discharge valve.
4. Turn the pump on. Slowly open the discharge valve. Adjust
the flow rate and pressure by regulating the discharge
valve. Do not attempt to adjust the flow with the suction
valve.
Shutdown
After the initial examination of the internal components and wear
items are measured, a specific maintenance schedule can be
determined. For best results, it is recommended that the pump
be removed from service annually for examination.
1. Use the following procedure to shutdown the pump.
Disassembly
2. Slowly close the discharge valve.
WARNING: Rotating Parts. This pump has components that
rotate while in operation. Follow local safety standards for locking out the motor from the power supply during maintenance or
service.
3. Turn off the motor.
4. Close the suction valve.
Flush Systems
WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals. Always
wear protective clothing, eye protection and follow standard
safety procedures when handling corrosive or personally harmful
materials. Proper procedures should be followed for draining and
decontaminating the pump before disassembly and inspection of
the pump. There may be small quantities of chemicals present
during inspection.
CAUTION: Some fluids react with water; use compatible
flushing fluid.
1. Turn off the pump.
2. Completely close the suction and discharge valves
3. Connect flushing fluid supply to flush inlet valve.
4. Connect flushing fluid drain to flush drain valve.
WARNING: Magnetic force hazard. This pump should only
be disassembled and assembled using the recommended procedures. The magnetic attraction is powerful enough to rapidly
pull the motor end and the wet end together. Do not place
fingers between the mating surfaces of the motor and wet ends
to avoid injuries. Keep the drive magnet and impeller assembly
away from metal chips or particles.
5. Open flushing inlet and outlet valves. Flush system until the
pump is clean.
Optional Drain Installation
1. Remove the impeller housing (item 1) from the pump assembly.
Stop the pump, lock out the motor starter, close all the valves
that are connected to the pump, and drain/decontaminate the
pump.
2. Clamp the impeller housing to a drill press table.
3. Using a 7/16” drill and the molded boss as a guide, drill
completely through the molded boss into the interior of the
impeller housing.
WARNING: The pump must be thoroughly flushed of any
hazardous materials and all internal pressure relieved prior to
opening the pump. Allow the pump to reach ambient temperatures prior to performing maintenance.
CAUTION: Do not tap too deep or the impeller housing may
be damaged.
1. Secure the pump/motor to the bench with the adapter foot
hanging over the edge. Remove (4) 1/2” socket head cap
screws, lock washers and flat washers (items 14, 15, 16)
securing the pump to the motor. Use 3/8” Allen wrench or
3/8” hex socket on universal joint.
4. Using a ¼” NPT tap, tap the hole in the molded boss to the
appropriate depth.
5. Install the drain plug or valve, being careful not to overtighten.
8. Remove the o-ring (item 6) from the barrier and inspect for
chemical attack, swelling, brittleness, cuts, etc.
2. Firmly grab the motor adapter and
pull straight out to dis-engage the
motor and pump. See figure 10.
9. Visually inspect the outer drive (item 9) for rubbing, damage,
corrosion or loose magnets.
NOTE: If the pump has the
optional o-ring sealing option
(available on 184 and 215 frame
Figure 10
pumps only), make sure o-ring (item
8B) does not fall out of the motor adapter (motor end).
NOTE: Inspect the o-ring (item 8A), for chemical attack, swelling, brittleness, cuts, etc. Both NEMA and IEC pumps have o-ring
item 8A. If the pump has the optional o-ring sealing option
(available on 184 and 215 frame pumps only), inspect o-ring
item 8B (and item 10A if 215 frame).
3. Place pump on bench with housing (item 1) facing up. Using
a 19 mm socket, remove (10) M12 hex head cap screws, lock
washers and flat washers (items 11, 12, 13). See figure 11.
Outer Drive Replacement
1. Remove the setscrews (item 9B) from the side of the drive
(NEMA motors) or the bolt, lock washer and flat washer (items
17, 18, 19) from the center of the drive (metric motors).
4. Pull housing straight up to remove. Impeller shaft (item 5)
may be lodged in the front shaft support. Inspect housing for
signs of wear or damage. Look for signs of rubbing, cracked
thrust ring or damage to front shaft support. See figure 12.
WARNING: Be careful, tools will want to be attracted to
the magnets.
5. Remove impeller/inner drive assembly (items 3A, 3, 4, 4A).
2. Remove the drive magnet from the motor shaft by gently
prying up from the bottom of the drive.
3. To reinstall the drive or a new drive follow the instructions from
“Section I – Assembly, Pumps without Motors, Steps 3 & 4”.
Figure 11
Thrust Ring Replacement
1. Thrust ring (item 3A) is held in-place with a snap fit ridge.
Using a razor knife or side cutters, cut a notch out of the
thrust ring. Pull ring up and out of the holder. See figures 17
and 18.
2. To reinstall, align the two flats on the thrust ring with the
flats in the bore of the impeller. Using a piece of wood press
into place using an arbor press until the thrust ring is completely seated in the impeller.
Figure 12
See figure 13. Inspect impeller and
drive for signs of wear or damage.
Look for signs of rubbing, damage
and wear to the impeller and inner
drive. Check the impeller thrust ring
and bushing for wear. See figure 14.
Figure 13
.780 max.
diameter
.020 min.
groove height
Figure 14
6. Remove the impeller shaft (item 5) from the barrier and check
for signs of cracking, chipping, scoring or wear. See figure 15.
Figure 17
7. Remove the barrier (item 7) from the motor adapter (item 8)
(make sure the spindle has been removed). If necessary,
gently tap on the backside of the barrier with a soft rod
(wood, plastic, etc). Inspect the inside and outside of the
barrier for signs of rubbing. See figure 16.
Figure 15
Figure 16
Figure 18
Bushing Replacement
5. Carefully install the impeller/inner drive assembly (items 3A,
3, 4, 4A) by sliding it over the impeller shaft in the barrier.
It is normal for the impeller/inner drive to pop up a slight
amount due to magnetic forces. See figures 22 and 23.
1. To remove the bushing, place the impeller/inner drive
assembly (items 3A, 3, 4, 4A) with the impeller facing up
in an arbor press. If necessary support the bottom of the
assembly with blocks to allow the bushing to fall out. Insert
a 1” (25.4mm) diameter plastic or wooden shaft through the
impeller and press bushing out. See figure 19.
2. To replace bushing, place the assembly on a flat surface
with the impeller thrust ring face down. With the slotted face
of the bushing facing the rear of the inner drive, align the
flat in the bushing with the flat in the inner drive magnet.
See figure 20. Gently push until bushing bottoms out.
Figure 22
Figure 23
6. Install the impeller housing (item 1). Make sure the discharge is in the correct orientation in relation to the motor
adapter pump foot. Align the shaft in the barrier with the
front shaft support in the impeller housing. Press down to
push the impeller/inner drive magnet assembly into position.
Holding the impeller housing with one hand, install and finger-tighten two bolts lock washers and flat washers (items
11, 12, 13) in opposite locations. See figure 24.
Figure 19
7. Install the remaining bolts, lock
washers and flat washers finger
tight.
Figure 20
8. Using a 19 mm socket, tighten
all the bolts evenly using a star
pattern. Tighten to 240 in-lb
(27.1 N-m)
Impeller Replacement
1. To remove the impeller from the inner drive magnet, gently
pry off by hand or lightly tap on the back of the impeller.
2. To install a new impeller, place the inner drive magnet assembly face up. Line up the patterns on the impeller with
the ones on the inner drive magnet so they match and press
into place by hand. An arbor press can also be used to press
the impeller on the inner drive. Place a piece of wood over
the top of the impeller thrust ring and push down on the
impeller until it is completely seated in the inner drive.
9. Reinstall the pump on the motor/
Figure 24
drive magnet following instructions from “Section I – Assembly, Pumps without Motors,
Steps 5 & 8”.
Reassembly
1. Lubricate the o-ring (item 8A) with a chemically compatible
lubricant and install in the groove in the motor adapter.
2. Install the barrier (item 7) into the motor adapter (item 8).
Press firmly to ensure that the barrier is completely seated.
3. Install o-ring (item 6) in groove in
barrier.
4. Install impeller shaft (item 5) into
barrier by aligning flats on the
shaft with the ones in the barrier.
Make sure it is completely seated.
See figure 21.
Figure 21
10
DB22 PART NUMBER EXPLANATION
NOTE: Pump end includes wetted components, drive magnet and motor adapter; wet end includes wetted components only.
Part Number Explanation
Base model number contains standard components. Where standard components aren’t suitable, add the alternative component
code letter after the based model number to substitute components. Example: DB22P-E-U-21 is constructed of the listed base
model components except it has an EPDM O-ring, union connections, and a 213TC motor adapter.
BASE MODEL
COMPONENTS
PTFE
Alumina Ceramic
T
R
Viton
EPDM
Simriz
Kalrez
E
S
K
NPT
BSP Threads
Union
Steel enforced flange
Fiberglass enforced flange*
B
U
Fs
Ff
Bushing
Graphite Carbon
O-Ring
Base Model Numbers: DB22P, DB22V
Connection
Impeller Size
1
Motor Adapter
Specials
184TC NEMA
SS hardware, PTFE/
ceramic thrust rings,
ceramic shaft, Buna oring vapor protection kit
option (NEMA only)
Motor
Not Standard
11
ALTERNATIVE COMPONENTS
DE
CO
The model number is on the serial number label
located on the motor adapter. The model number
contains a base model that features certain standard components. Compare the model number
on the pump to the adjacent chart to determine
if the pump contains any alternate components.
Model numbers containing “P” have primary
components molded from polypropylene. Model
numbers containing “V” have primary components molded from PVDF.
2
12
Select impeller from performance curve.
3 4 5 6 7 8 9 10 11
13 14 15 16
213TC NEMA
IEC 90/B14
IEC 100/B14
IEC 112/B14
IEC 132/B14
IEC 90/B5
IEC 100/B5
IEC 112/B5
IEC 132/B5
21
94
04
24
34
95
05
25
35
SiC bushing, thrust ring, shaft
Si
Hastelloy shaft
Titanium hardware
Viton o-ring vapor protection kit
(NEMA only)
EPDM o-ring vapor protection kit (NEMA
only)
ATEX (PVDF only)
Non-sparking ring
Hs
Ti
Vv
Contact factory or distributor.
Ve
A
Ns
DB22 EXPLODED VIEW PARTS DIAGRAM
12
DB22 SPARE PARTS LIST
I
Item
Qty
Description
Polypropylene
PVDF
NPT Threads & Ceramic Ring
106403
106403-1
BSP Threads & Ceramic Ring
106403-2
106403-3
FRP Flanges & Ceramic Ring
106478
106478-1
Steel Flanges & Ceramic Ring
106478-2
106478-3
Unions & Ceramic Ring
106481
106481-1
NPT Threads & SiC Ring
106471
106471-1
BSP Threads & SiC Ring
106471-2
106471-3
FRP Flanges & SiC Ring
106748
106748-1
Steel Flanges & SiC Ring
106748-2
106748-3
106755
106755-1
Housing
1
1
Unions & SiC Ring
2
1
1
1
Discharge O-ring (BSP housings only)
DB22 Closed Impeller w/ Fluorosint Thrust Ring
DB22 Closed Impeller w/ Silcon Carbide Thrust Ring
3
1
DB22 Open Impeller w/ Fluorosint Thrust Ring
13
EPDM
J103478
Viton
J103477
Simriz
105946
Kalrez
105945
#1
106472
106472-1
#2
106472-2
106472-3
#3
106472-4
106472-5
#4
106472-6
106472-7
#5
106472-8
106472-9
#6
106472-10
106472-11
#7
106472-12
106472-13
#1
106473
106473-1
#2
106473-2
106473-3
#3
106473-4
106473-5
#4
106473-6
106473-7
#5
106473-8
106473-9
#6
106473-10
106473-11
#7
106473-12
106473-13
#8
106469-6
106469-7
#9
106469-8
106469-9
#10
106469-10
106469-11
#11
106469-12
106469-13
#12
106469
106469-1
#13
106469-2
106469-3
#14
106469-4
106469-5
#15
106469-6
106469-7
#16
106469-8
106469-9
DB22 SPARE PARTS LIST (continued)
Item
Qty
Description
#8
3
1
DB22 Open Impeller w/ Silcon Carbide Thrust Ring
DB22 Closed Impeller Thrust Ring Only
3A
1
DB22 Open Impeller Thrust Ring Only
Polypropylene
PVDF
106470-6
106470-7
#9
106470-8
106470-9
#10
106470-10
106470-11
#11
106470-12
106470-13
#12
106470
106470-1
#13
106470-2
106470-3
#14
106470-4
106470-5
#15
106470-6
106470-7
#16
106470-8
106470-9
Fluorosint®
J103899
SiC
J104170
Fluorosint®
J101460
SiC
J101460-1
Impeller Drive Assembly
With Carbon Bushing
4
1
106476
106476-1
With PTFE Bushing
106476-2
106476-3
With Ceramic Bushing
106476-6
106476-7
With SiC Bushing
106476-4
106476-5
Carbon
4A
1
J103917-1
Filled PTFE
Impeller Bushing Only
106757
Ceramic
106757-2
SiC
106757-1
Ceramic
5
6
1
1
Impeller Shaft
Housing O-ring
7
1
Barrier
8
1
Motor Adapter
8A
8B
1
1
SiC
106450-1
Hastelloy C
106450-2
EPDM
106765
Viton
106764
Simriz
106767
Kalrez
106766
Standard
ATEX
Front Motor Adapter O-Ring
Rear Motor Adapter O-Ring (NEMA motors only)
14
106450
106400
106400-1
106414-1
106414-2
106794
106794-1
Buna
106844
EPDM
106845
Viton
106846
Buna
106847
EPDM
106848
Viton
106849
DB22 SPARE PARTS LIST (continued)
Item
Qty
Description
Polypropylene
PVDF
Outer Drive Magnet Assembly
9
1
184TC Frame (Includes Set Screws and Retaining Ring)
106453
213TC Frame (Includes Set Screws and Retaining Ring)
106453-1
106457
90 Frame (Includes Retaining Ring)
106457-1
106457-2
100/112 Frame (Includes Retaining Ring)
132 Frame (Includes Retaining Ring)
9A
1
Retaining Ring Only
9B
2
Set Screws (NEMA Motor Only)
10
10A
1
1
184TC Frame
105710
213TC Frame
90 Frame
100/112 Frame
132 Frame
106454
105712
105710
106468
J101084
213/215TC
90 B14
90 B5
Motor Adapter Flange
100/112 B14
100/112 B5
132 B14
132 B5
Buna
Motor Adapter Flange O-Ring (NEMA 213/215 Frame
EPDM
Motors Only)
Viton
HARDWARE
Item Qty
Description
106775
106781
106780
106777
106776
106779
106778
106775-1
106781-1
106780-1
106777-1
106776-1
106779-1
106778-1
106851
106852
106853
Stainless Steel
106501
Titanium
106502
11
10
Housing Bolt
12
10
Housing Lock Washer
106503
106504
13
10
Housing Flat Washer
106505
106506
14
4
Motor Adapter Bolt
15
4
Motor Adapter Lockwasher
106495
106511
J101023
106498
106512
105762
16
4
Motor Adapter Flatwasher
106497
106500
17
1
Drive Bolt (IEC motors only)
18
1
19
1
“Drive Flatwasher (IEC motors only)”
20
4
“Motor Adapter Flange Bolt (IEC motors only)”
21
4
“Motor Adapter Lockwasher (IEC motors only)”
22
4
“Motor Adapter Flatwasher (IEC motors only)”
105770
105774
106507
J102282
105757
106503
105722
J101360
106509
J103781
105589
106774
J102282
J102282
105757
J101293
J101293
N/A
105771
105775
106508
J103847
105758
106504
105772
106200
106510
106513
106514
106775
J103847
J103847
105758
J103845
J103845
N/A
Standard
213/215 TC
“Drive Lockwasher (IEC motors only)”
15
90 Frame
100/112 Frame
132 Frame
90 Frame
100/112 Frame
132 Frame
90 Frame
100/112 Frame
132 Frame
90 Frame
100/112 Frame
132 Frame
90 Frame
100/112 Frame
132 Frame
90 Frame
100/112 Frame
132 Frame
Troubleshooting
Excessive Power Consumption
General Notes:
•
•
•
•
•
•
Do not pump liquids containing ferrous metal fines.
If magnets decouple, stop pump immediately. Operating the
pump with the magnets decoupled will eventually weaken
the magnets.
Contact our Technical Service Department If you have any
questions regarding product operation or repair:
Phone: 1-800-888-3743
E-mail: [email protected]
No or Insufficient Discharge
•
•
•
•
•
•
•
•
•
Air leaks in suction piping
Pump not primed
System head higher than anticipated
Closed valve
Viscosity or specific gravity too high
Motor too large for magnet coupling rating (magnets uncoupled)
Suction lift too high or insufficient NPSH
Clogged suction line or impeller vanes
·Motor rotation incorrect (correct rotation when viewed from
the fan end is clockwise)
Insufficient Pressure
•
•
•
•
Air or gas in liquid
Impeller diameter too small
System head lower than anticipated
Motors speed insufficient (too low) or motor rotation incorrect (correct rotation when viewed from the fan end is
clockwise)
Loss of Prime
•
•
•
•
•
•
Leak in suction piping
Foot valve or suction opening not submerged enough
Foot valve too small or leaking
Air or gas in liquid
Foreign matter in impeller
Leaking valve. Suction lift too high or insufficient NPSHa.
Head lower than rating
Excessive flow
Specific gravity or viscosity too high.
Vibration/Noise
•
•
•
•
•
Loose magnet
Drive magnet rubbing
Pump cavitating from improper suction or feed
Motor or piping not properly secured
Foreign object in impeller
Section V - Warranty
Finish Thompson, Inc (manufacturer) warrants this pump product
to be free of defects in materials and workmanship for a period
of five years from date of purchase by original purchaser. If a
warranted defect, which is determined by manufacturer’s inspection, occurs within this period, it will be repaired or replaced
at the manufacturer’s option, provided (1) the product is submitted with proof of purchase date and (2) transportation charges
are prepaid to the manufacturer. Liability under this warranty is
expressly limited to repairing or replacing the product or parts
thereof and is in lieu of any other warranties, either expressed
or implied. This warranty does apply only to normal wear of the
product or components. This warranty does not apply to products or parts broken due to, in whole or in part, accident, overload, abuse, chemical attack, tampering, or alteration. The warranty does not apply to any other equipment used or purchased
in combination with this product. The manufacturer accepts no
responsibility for product damage or personal injuries sustained
when the product is modified in any way. If this warranty does
not apply, the purchaser shall bear all cost for labor, material and
transportation.
Manufacturer shall not be liable for incidental or consequential
damages including, but not limited to process down time, transportation costs, costs associated with replacement or substitution
products, labor costs, product installation or removal costs, or
loss of profit. In any and all events, manufacturer’s liability shall
not exceed the purchase price of the product and/or accessories.
Ordering Spare Parts
Spare parts can be ordered from your local distributor. Always
refer to the pump model to avoid error.
Literarture I.D. No. FT08-1023
Part Number 106782
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