MYERS DP Series Owner's manual

MYERS DP Series Owner's manual
DP SERIES
INDUSTRIAL PUMP
INSTALLATION AND SERVICE MANUAL
NOTE! To the installer: Please make sure you provide this manual to the owner of the equip­ment or to the responsible
party who maintains the system.
Part # 23833A148 | © 2017 Pentair Ltd. | 06/21/17
INSTRUCTIONS
Adjust relief valve or unloader to desired pressure.
Cycle nozzles, or gun, on and off to be sure that
pressure adjustment and regulator operation is
satisfactory. Nozzle capacity should not exceed 90%
of pump capacity for satisfactory regulator operation.
Avoid freezing by draining all water from pump and
system in cold weather.
CAUTION: Positive displacement pumps must have a
proper size and operable type of pressure regulating
valve or pressure relief valve piped into the discharge
line. This is mandatory to prevent damage to pump and
piping or possible injury to personnel. Do not install
any valves or shut-off devices in the bypass line from
pressure regulator to tank or supply.
SUGGESTED MAINTENANCE SCHEDULE
Check oil level – Daily
CAUTION: All pumps should be installed level. For
mobile applications the maximum angle of intermittent
operation should be no more than 5 degrees in any
one direction.
Drain and change oil – 300 hrs.
Drain at operating temperature to prevent
contamination from settling.
CALIFORNIA PROPOSITION 65 WARNING:
Inspect plunger packing and spacer rings – 500 hrs.
Inspect frequently for leakage; each plunger packing
is allowed to drip at 10 to 60 drops/min. in order to
cool and lubricate packing. Replace if there is a
stream leak.
This product and related
accessories contain chemicals known to
the State of California to cause cancer,
birth defects or other reproductive harm.
It is recommended to install a pulsation dampener in
the discharge line to smooth out pressure pulse. This
can protect pump parts and piping for longer life and
quiet operation.
Inspect valves and springs – 500 hrs.
Replace if cracks and heavy wear are present.
Inspect connecting link bearing inserts – 1000 hrs.
Replace at first signs of fatigue or wear to prevent
damage to crankshaft.
BELT DRIVE
With belt drives, the pulley on both the engine and
pump should be located as closely as possible to
bearing to reduce bearing and shaft bending loads.
Make sure that all bolts, nuts, set screws and keys
are properly tightened. On multiple V-belt drives, a
complete set of new belts should be installed when
making a replacement.
Inspect crankshaft tapered roller bearings
and plunger – 2000 hrs.
Replace if there is any pitting on the seal surface or
if the surface is rough. Ceramic plungers should be
cleaned by soaking in muriatic acid to remove any
buildup of packing material.
LUBRICATION
STARTING PUMP
Fill gear case with Mobilgear 630 or equivalent to
6-1/2 qts for 1000-1800 pinion rpm range and 7-1/2 qts
for 600-999 rpm range. Maintain oil level at mark on
oil dipstick.
Fill pump crankcase with recommended oil to the
level mark on the oil saber. Oil recommendations are
covered in the lubrication section of pump instructions.
Replace all drain plugs in pump and piping. Inspect
tank to be sure that no foreign material is in tank
or suction line. Fill tank at least half full or connect
suction to water supply. Open valve (if present) in
suction line. Avoid prolonged dry operation which
may cause excessive wear on plunger packing. Be
sure that an operating pressure gauge is located in
discharge line. Use a heavy duty, liquid filled, pulsation
free pressure gauge. Make sure all valves, including
spray gun or nozzles, are open in discharge line. Spray
gun may be anchored to discharge back into tank.
Completely back off pressure adjusting device on the
pressure regulating valve. Check pressure rating for
pulsation dampener pressure regulator and pipe fitting
to make sure working pressure is not over maximum
pressure rating.
Mobilgear 630 equivalent:
Amoco: Permagear EP220 or Amogear EP220
Chevron: NL Gear Compound 220
Exxon: Spartan EP220
Kendall: NSMP 80w-90
Shell: Omala 220
Standard/Sohio/Boron: Gearep 80w-90
Texaco: Meropa 220
After first 30 hours of operation drain oil from
gearcase (preferably drain at operating temperature),
replace plug and refill crankcase with new oil. Check
oil level daily and add oil as needed.
After starting, close discharge valve or spray gun
slowly while watching pressure gauge to make sure
relief valve or unloader is operating properly.
23833A148 06/21/17
2
ADDITIVES FOR CRANKCASE OIL
retainer. Remove shoulder screw, spring retainer, spring
and valve from the pump fluid end.
Use of molybdenum disulfide (MoS2) is recommended as
an additive to non-synthetic oil in back geared pumps.
The additive is compatible with all known oils. It is
effective in reducing wear and friction that power train
life may be doubled between overhauls.
Assemble stud, retainer and three screws by inserting
screw heads through holes in valve seat. Rotate
retainer to the right until heads catch and secure in
place by screwing stud firmly. Place plate over stud,
screw on nut and torque slowly with wrench until seat
breaks loose.
SERVICE
Suction valve seats are removed as above, except two
stud lengths are joined using coupling.
Disengage clutch, disconnect electrical leads to motor, or
remove spark plug leads on engine.
To replace, inspect tapered valve seat bore in fluid end for
rust and wipe out excess with a rag. Place a new lower
seat in tapered hole. Drive lower seat firmly into place
and repeat for upper seat being sure to also inspect the
tapered bore for rust.
REPLACING PLUNGER AND PACKING
The coated plungers are very hard and ground to a
super smooth surface. Special care must be taken when
removing or installing.
Reassemble valve, spring and spring retainer and confirm
that springs are in correct location. The heavier spring
is installed on upper or discharge valve. Be sure that
shoulder screw is bottomed in valve seat. This screw
is furnished with a Nylock locking pellet to prevent
accidental loosening of screw. Also be certain that the
valve disc is installed on the valve with the flat face down.
Inspect O-rings and backup rings on valve caps. Replace
if O-rings show signs of wear.
Use wrench to unscrew front valve cap and remove.
Remove packing spring by hand and top sheet metal
cover. Use open wrench to grab hex part of plunger to
unscrew completely off the stainless steel crosshead rod.
Do not grab any other area except the hex to unscrew
plunger. Pull plunger off from front cylinder bore. Use
bar to push packing assembly/cartridge out by rotating
pump shaft which moves crosshead rod forward. Inspect
packing set and spacer ring. Check diametrical clearance
between plunger and spacer ring. Replace if greater than
.035" in diameter. Repeat for each cylinder.
REPLACING CROSSHEAD ROD OIL SEALS
The rod seal assembly contains two seals and two oil
seals with lips facing the power end. The oil seal can be
replaced without taking the fluid end off by taking the
front cylinder head valve caps off and unscrewing and
pushing the ceramic plunger towards the front to allow
access for oil seal housing. Unscrew two Allen screws
and place into the other two tapped holes. Gradually
screw them in to push oil seal housing off the retainer.
After assembling new seals in oil seal housing, an
assembly thimble should be used on the end of the
crosshead rod for sliding oil seal housing back into
retainer. Check gasket and replace if damaged. The
thimble should be machined from high carbon steel and
polished on the exterior to reduce possibility of seal lip
damage.
The antiextrusion spacer ring is to be installed on the
back side of each braided packing. Before installing
plunger packing assembly, inspect the bore, clean out
any rust or corrosion and lubricate with grease for easier
installation. For models DP120, DP90, DP85, and DP
80, slide seal back ring into bore until it bottoms out
and seats in place. For models DP70, DP55, DP40, and
DP28, place spacers and braided packing rings into the
seal cartridge. Make sure braided packing is installed in
staggered position. For DP120, DP90, DP85, and DP80,
place spacer and packing into bore, making sure that
braided packing rings are installed in staggered position.
For model DP70, DP55, DP40, and DP28, check O-ring
and backup ring and replace if you see any sign of wear.
Slide the seal cartridge into seal bore until it bottoms
out. Place spring washer into bore. Insert coated plunger
into seal bore and hand tighten to the crosshead rod.
Tighten the hex until the end makes contact. The plunger
shoulder must contact the end of the crosshead rod or
the plunger load may strip off thread. Install packing
spring. Check O-ring and backup ring in valve cap and
replace if you see any sign of wear.
REMOVING CRANKSHAFT AND
PINION SHAFT
Remove front valve cap and plungers. Remove connecting
link caps and move the link-crosshead assembly as far
forward as possible. Secure separation of the crankshaft
gear and gear case so that crankshaft will be held in
place against pinion shaft. Remove both crankshaft
bearing caps. Hold crankshaft at ring gear and left-hand
link journal to prevent dropping into bearing bores and
remove from gear case by moving crankshaft to the right
until left end can be swung free.
REMOVING AND REPLACING SEATS CENTER
POST VALVES
Remove the valve caps which provide access to both
suction and discharge valves. Remove the stainless steel
shoulder screw which serves as a valve guide and spring
3
23833A148 06/21/17
REPLACING CRANKSHAFT AND
SHIMMING BEARINGS
Tap the end of the pinion shaft extension to remove the
bearing cup at the opposite end. After removing pinion
shaft, the remaining bearing cup can be removed by
gently tapping against the peripheral edge of the cup with
a brass rod.
Press the bearing cups into the caps. Place one cap
into position on the right side with cap screws engaged
about one turn. Install crankshaft left end first, and push
both bearing caps into place. Extreme care should be
exercised to avoid damage to gear teeth, bearings, and
link journals.
REPLACING PINION SHAFT AND
SHIMMING BEARINGS
After installing the link-crosshead assemblies and
moving them toward the fluid end as far as possible,
tap the right-hand pinion shaft bearing cup into position
using the bearing cap. Make sure that the spacer is
properly seated on drive end of pinion shaft. The curve
side should match the fillet radius of pinion shaft. Place
pinion shaft in position and tap left-hand bearing cup
into place.
For quiet operation and long life, the crankshaft and
bearings must be installed with .003" to .005" preload.
To adjust, loosen the four cap screws on the pinion shaft
bearing cap.
Place about a .045" shim on the right crankshaft bearing
cap, and tighten the five cap screws. Install the left cap
without shims and secure with two cap screws at
13 ft/lbs and rotate the crankshaft. Retorque the cap
screws. Repeat three times to properly seat the tapered
roller bearings. Measure (adjacent to the cap screws) the
shim gap remaining between the bearing cap and the
gear case. The required shim thickness for this cap is
equal to the average gap measurement plus .022". Insert
correct shim thickness under left bearing cap and tighten
cap screws. Install connecting links and caps, then torque
cap screws to 40 ft/lbs.
Cover the shaft keyway to protect lip of oil seal. Slide on
the open bearing cap with a .030" shim. Tighten the four
cap screws to recommended torque.
Install other cap using total shim thickness. Tighten cap
screws holding pinion or crankshaft caps to gear case.
Rotate pinion shaft back and forth, applying about 15 lbs.
axial force to properly seat tapered rollers. Measure
end-play by using an indicating gauge.
IMPORTANT – Check for adequate side clearance of
links on crankshaft. Some shims must be moved from
one end to the other until sideways movement of all
links can be seen.
Subtract recommended end-play (.005"–.009") from
actual end-play. This is the amount of shim that must be
removed. After excess shim thickness has been removed,
replace caps and retighten cap screws. Measure endplay, and if end-play is not within limits recommended,
add or subtract shims as required.
Check torque of cap screws on all bearing caps.
RECONDITIONED CRANKSHAFTS
REPLACING PINION SHAFT AND SHIMMING
BEARINGS ON HYDRAULIC DRIVEN PUMPS
When the crank throws are slightly damaged, they can
sometimes be reconditioned for further use. This can
be done by sandpapering and polishing until all ridges
are completely removed. The final polishing operation
should be with very fine emery cloth. If the surface is
badly damaged, the crankshaft can often be salvaged by
“metalizing” the crank throw, regrinding and polishing to
the original diameter.
Press bearing cones onto both ends of the pinion shaft,
being sure bearing seats completely against stop on
shaft. Place pinion and bearing cone assembly into
the crankcase, positioning the pinion gear over the
crankshaft gear. Carefully press bearing cups into both
sides of the crankcase. Tap cups until bearing cups and
cones are completely together and pinion is in the proper
location in the crankcase. Press shaft seal into cap,
bearing and seal plate. Be sure both caps are installed
with the lip towards the center of the pump. Install right
bearing cap with two .003" thick shims and tighten cap
screws. Install left bearing cap with one .015" thick and
one .003" thick shim and tighten the eight socket head
cap screws to the recommended torque. Rotate pinion
shaft back and forth, applying about 15 lbs. axial force
to properly seat the tapered rollers. Measure end-play
by using an indicating gauge. Subtract recommended
end-play (.005"–.009") from actual end-play. This is
the amount of shim that must be removed. After excess
shim thickness has been removed, replace left cap and
retighten cap screws. Measure end-play again and repeat
if necessary.
23833A148 06/21/17
SERVICING CONNECTING LINKS
The connecting rod link is furnished with replaceable
split sleeve bearing inserts at the crank throw. Do not
attempt to re-fit connecting links to the crankshaft
bearings by filing or grinding the mating faces of the link
cap where it contacts the link. Always be sure that the
proper side of the link is placed upward when attaching it
to the crankshaft. The upper side contains an oil hole at
the crosshead end of the link. This oil hole must be up to
allow proper oil feeding to the crosshead pin bushing. The
wrist pin is press-fitted into the crosshead and slip-fitted
through the bronze bushing. Use arbor press to force in
the wrist pin, checking to see if the link is free to rotate
4
after the wrist pin is pressed in. Verify that both sides of
the wrist pin do not protrude beyond the crosshead.
hand wheel to unseat valves to avoid frost to valve seats.
If pump does not have valve lifters with the piping lines
open into the atmosphere, start and run the pump for
only 15 seconds.
The crosshead end of the connecting link is fitted with
a bronze bushing. New replacement link bushings are
reamed to the proper size for immediate installation. If
only the bushing is replaced, it may be necessary to ream
the new bushing to the proper inside diameter after it is
pressed into the link. When placing the bushing on the
link, be sure that the oil holes in the bushing and link are
in line after the bushing is pressed into position.
CROSSHEAD AND PISTON RODS
Repair parts for the crosshead and piston rod are
supplied as a complete unit. If either of these parts
becomes worn it is necessary to replace both the
crosshead and piston rod. Under normal conditions
a crosshead will not wear, nor will the bore of the
crankcase wear to the extent that oversize crossheads
will be required. A clearance of .002" to .004" is standard
for the crosshead.
RECOMMENDED TORQUE (foot-pounds)
FASTENER LOCATION
Link Bearing Caps - 40
Crankshaft End Caps - 20
Pinion Bearing End Caps - 20
Cap Screw, 3/4
(Fluid End to Power End) - 250
Cap Screw, 5/8
(Fluid End to Power End) - 150
Myers® triplex reciprocating pump model DP85 is suited
for temporary operation at engine idle speed during
cold weather recirculation operation if operated within
the following guidelines. Truck must be on level ground
during idle speed operation.
Minimum pump crankshaft speed:
200 rpm
Maximum pressure at pump:
500 psi
Maximum operating time at idle speed:
30 minutes
INSTRUCTIONS FOR DRAINING PUMP
IN FREEZING WEATHER
Open suction line into the atmosphere at lowest point
in suction piping and remove suction pipe plug. Open
discharge line into the atmosphere at the lowest point
in discharge piping. If there are several low points in
the discharge line as in a hose reel they will have to be
drained individually. Drain bypass line by disconnecting
or removing drain plug. If pump has valve lifters, turn
5
23833A148 06/21/17
THE PUMP MUST BE INSTALLED WITH A PRESSURE RELIEF VALVE IN DISCHARGE LINE
TROUBLESHOOTING
Pump fails to build pressure with discharge closed
Failure to hold pressure with discharge open
Pump is noisy
Pump gets hot
Pressure gauge shows abnormal fluctuation
POSSIBLE CAUSE OF PROBLEM
1. Pump not primed
2. Valve closed in suction line X
3. Suction line or sediment chamber clogged X
X
4. Air leak in suction line X
X
5. Pressure regulator valve badly worn or not properly adjusted
X
6. Broken valves or springs
X X
X
7. Pump packing or valves badly worn
X X
X
8. Pressure regulator bypassed by open #1 valve
X
9. Pump cylinder body cracked X
X
10. Water in crankcase X
11. Worn connecting link inserts or wrist pin bushings X X
12. Lack of oil in crankcase X X
13. Foaming mixture in tank
X X
X
14. Regulator plunger sticking
X
15. Foreign matter under pump valve
X X
X
16. Loose piston rod X
17. Improper preload of crankshaft bearings X X
X
X
X
X
X
X
X
Explanation of the Service Chart
1. Pump priming is usually not necessary when the
pump is installed correctly. However, there are certain
conditions which may make it necessary to prime the
pump to get the pumping action started. Priming will
be required when it is impossible for the piston to
displace the air in the pump and replace it with water.
This could be caused by a high suction lift, the valves
being stuck on the seat or by valves sticking due to
extreme corrosion. A pump will not prime readily if
someone has tampered with the valve springs causing
them to exert undue pressure of the valve plates
against the valve seats.
3. A sediment chamber should be installed in the suction
line between the gate valve and the pump suction. The
strainers in these sediment chambers are to allow a
free flow of liquid to the pump. If the strainers become
severely clogged, they will completely stop the flow of
liquid to the pump.
4. Any piston pump operating at a high pressure will not
perform properly or quietly if a mixture of air and water
is allowed to enter the pump suction. A small air leak
in the suction line will cause the pump to knock and
vibrate excessively by allowing the pump to draw a
certain amount of water mixed with air on each stroke
of the piston. A large air leak will cause the pump to
lose prime after which it cannot be reprimed until the
air leak is stopped. Air leaks may occur at the joints of
the suction line piping, at the gate valve in the suction
line, at the gasket sealing the cap on the sediment
chamber, by a crack in the suction wall of the cylinder
body, or by air drawing past the packing on the suction
stroke if the packing is badly worn.
2. A gate valve is sometimes installed in the suction line
between a tank or pressure line, and pump sediment
chamber, to shut off the supply source for cleaning the
sediment chamber or for pump repairs. If this valve is
partially or fully closed, it will interfere with the flow of
water to the pump suction. This also may cause severe
knocking and vibration of the pump because the water
cannot flow into the cylinder cavities fast enough.
23833A148 06/21/17
6
5. If the pressure regulator internal bypass valve is worn, it
will allow too much of the pump capacity to be bypassed
and recirculated back to the tank. By examining the flow
from this valve with the discharge turned on, it can be
determined whether or not the valve is worn. If a heavy
flow continues when the discharge is turned on, it is
usually a good indication of a worn valve and should
be replaced.
11. Worn connecting link bearings are caused by unusual or
adverse operating conditions and are seriously affected
by corrosion if water is present in the crankcase. They
will wear out from overheating if the oil is not high
quality or clean. Drain, clean and refill with new oil at
the specified interval and prior to any storage period.
Replace link inserts as soon as any wear is noticed to
avoid damage to crankshaft journals.
6. A broken pump valve or spring will often prevent one
cylinder from functioning properly resulting in a rough
pulsing discharge, a knocking sound and a loss of
capacity. If not repaired immediately, the rough running
pump can cause mechanical damage to itself or other
system components.
12. Low oil in the crankcase can quickly cause failure of
the pumps power end and result in extensive repairs.
Oil level should be checked periodically during normal
operation and during all maintenance work.
13. A foaming mixture will sometimes have the same effect
as a small air leak in the suction line. This is because
various quantities of the foam are drawn through the
suction line into the pump disrupting the normal flow
of water.
7. Worn packing, valves or valve seats will cause a
severe drop in pump capacity pressure. Worn packing
is detected by water leakage and should be replaced
immediately. Water getting in the pump crankcase will
cause severe corrosion of the bearings and cause rapid
wear. Worn valves can be detected by visual examination
of each valve assembly. Abrasive liquid will cause wire
cuts which begin as a very small groove, but increases
rapidly once the valve starts to leak through this groove.
If the valves are replaced as soon as they start to show
this cutting action, it will prevent the valve seat from
becoming cut in a similar manner.
14. Pressure regulators can become sluggish due to the
plunger sticking or fitting too tightly in the cylinder. This
may happen by an accumulation of chemicals collecting
in and around the plunger or from excessive corrosion of
the plunger parts. To check this condition, remove and
clean the plunger and cover the parts with a waterproof
grease before assembling. The pressure regulator
may chatter or vibrate excessively due to an unstable
operation from nozzling in the high or low capacity range
of the regulator. The range should be at least 50% to
90% of pump capacity.
8. If a portion of the pump delivery is allowed to bypass
because the #1 control valve is not completely closed,
there may not be adequate flow to develop full pressure.
This will cause rapid wear in the control valve. Any
excess flow should be bypassed only by the pressure
regulator.
15. If foreign matter becomes lodged between the pump
valve and valve seat, a drastic drop in capacity and
considerable surge or pulsation will occur in the
discharge line. Examine each valve if this occurs.
9. Pump cylinder bodies withstand an extreme amount of
shock and pulsation while in operation. If the pump is
allowed to freeze, by not being drained, the freezing may
crack the cylinder body walls in almost any location. If
the crack occurs on the suction valve or cylinder portion
of the body, it may allow a small amount of air to enter
on the suction stroke and cause noisy operation or a
decrease in pumping capacity. If the crack develops in
the walls between the cylinder cavities or discharge
valve cavity, it may allow the water to flow from one
cavity to the adjacent cavity and cause
uneven displacement.
16. Noisy pump operation may be caused by a loose piston
rod in the crosshead. This noise usually has a regular
cadence timed with each stroke. If this happens, always
replace both the rod and the crosshead.
17. Increased preload to the crankshaft bearings will reduce
bearing life, require more power and generate more
heat. Insufficient preload may cause a knock, timed with
the crankshaft rotation. Check for loose bolts on the
crankshaft end caps or adjust shims to obtain proper
bearing preload. Worn roller bearings will continue to
run but will introduce wear particles into the oil.
10. Water may accumulate in the pump crankcase from
two sources; leakage of packing or an accumulation
of condensation/moisture inside the crankcase due to
changes in weather or the repeated heating and cooling
of the pump. Pumps used consistently, running for a
considerable period of time to heat the oil and other
working parts, will not normally accumulate water by
condensation. Replace the packing as soon as it starts
to leak.
7
23833A148 06/21/17
DP SERIES PLUNGER PUMP
PARTS LIST
POWER END PARTS
24960F101 L.H. & 24960F100 R.H.
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
HYDRAULIC DRIVE COMPONENTS
Description
Qty.
Eng. No
CASE, GEAR
GASKET, LID
SCREW, CAP, 5/16"-18 UNC x 1/4", STEEL
LID
NIPPLE, SPECIAL VENT
CAP, PIPE
GAUGE, OIL, WITH O-RING
SHAFT, PINION*
SPACER
SHIM, PLASTIC, .003"
SHIM, PLASTIC, .015"
CONE, BEARING
CUP, BEARING
CAP, OPEN
CAP, CLOSED
OIL SEAL
SCREW, CAP, 3/8"-16 UNC x 1", STEEL
WASHER, SEAL
CRANKSHAFT*
CRANKSHAFT, DP85-20
CONE, BEARING
CUP, BEARING
CAP, BEARING
SHIM, PLASTIC, 6-7/32" x 5-1/32" x .003"
SHIM, PLASTIC, 6-7/32" x 5-1/32" x .015"
O-RING, 5" I.D., 5-1/8" O.D., 1/16" THICK
CROSSHEAD
LINK, DUCTILE IRON
BUSHING
SCREW, CAP
BEARING, TWO HALVES
WRIST PIN
HOUSING, OIL SEAL
OIL SEAL
RETAINER, OIL SEAL HOUSING
SCREW, ALLEN
GASKET, SEAL HOUSING
GASKET, RETAINER
PLUG, PIPE, MAGNETIC
SCREW, SOCKET HD., 3/4"-10 UNC X 3", GR 5
LOCKWASHER
SCREW, CAP, 5/8"-11 UNC X 2", STEEL, GR 5
SPRING
1
1
8
1
1
1
1
1
1
4
4
2
2
1
1
1
18
18
1
04625E001K
06201C000
19100A005
04561B000
17995A000
05737A002
7206-0094-00K
27938B020K
20164B022A
05231A074
05231A075
05674A013
05675A009
04563A001
04741B001
05710A017
19101A009
14946A003
27937C022K
27937C044K
05674A021
05675A013
04624B004
05068A018
05068A016
05876A098
24956B000
17042C002
B01619A000K
19103A016
15245A101K
M01525A001
24959A000
22835A003
24958A000
06106A034
05059A434
05059A058
17481A002
06106A038
05454A003
19105A008
M01643A000
2
2
2
6
6
2
3
3
3
6
3
3
3
6
3
6
3
3
1
4
4
4
3
Item
Description
Qty.
Eng. No
1
2*
3
4
CASE, GEAR
1
1
4
2
04625E100
27938B040
05863A024
05863A023
2
05674A020
2
2
2
16
05675A019
04741B010
05710A046
06106A048
5
6
7
8
9
SHAFT, PINION
SHIM, GREEN, .003" THK.
SHIM, PINK, .015" THK.
CONE, BEARING
CUP, BEARING
CAP, BEARING & SEAL
SEAL, OIL
SCREW, CAP, SOCKET HEAD GRADE 8
5/16-24UNF X 1" LONG (TORQUE 15 LB./FT.)
*NOTE: When purchasing the crankshaft or pinion on units built prior to 07/12, both items will need to be replaced due to an
improvement in design.
23833A148 06/21/17
8
FLUID END PARTS - DP SERIES
Item
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Description
BODY, FLUID END A (L.P.)
BODY, FLUID END B (H.P.)
BODY, FLUID END C (V.H.P.)
CAP, VALVE
O-RING
RING, BACKUP
CAP, VALVE, SUCTION
O-RING
RING, BACKUP
VALVE, Acetal
SEAT, SUCTION VALVE F.E.A
F.E.B
F.E.C
SEAT, DISCHARGE VALVE F.E.A
F.E.B
F.E.C
SPRING, SUCTION VALVE
SPRING, DISCHARGE VALVE
RETAINER, SPRING
SCREW, CAP, THRD. LOCK
SPRING, PACKING
SPRING, PACKING
SPRING, PACKING
PLUNGER, COATED (2-5/8" D.)
(2-1/4" D.)
(2-1/8" D.)
(2" D.)
(1-3/4" D.)
(1-1/2" D.)
(1-1/4" D.)
RING, SEAL BACK (2-5/8")
(2-1/4")
(2-1/8")
CARTRIDGE, SEAL (2")
(1-3/4")
(1-1/2")
(1-1/4")
O-RING, SEAL CARTRIDGE (2)
(1-3/4, 1-1/2, 1-1/4)
RING, BACKUP, SEAL CARTRIDGE (2)
(1-3/4, 1-1/2, 1-1/4)
PACKING, PLUNGER 2-5/8 (4/SET)
2-1/4 (3/SET)
2-1/8 (3/SET)
2 (3/SET)
1-3/4 (3/SET)
1-1/2 (3/SET)
1-1/4 (3/SET)
WASHER, SPRING 2-5/8
2-1/4
2-1/8
2
1-3/4
1-1/2
1-1/4
LID, CYLINDER
SLINGER
PLUG, PIPE, 3"
PLUG, PIPE, 1"
PLUG, PIPE, 1/4 NPT
Qty.
Eng. No
1
1
1
6
6
6
3
3
3
3
3
3
3
3
3
3
3
3
6
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
1
3
2
3
4
24961F000K
24961F001K
24961F003
24797A000
05876A168
18753A007
24797A002
05876A221
18753A010
18834A003
24796A000
24796A002
24796A012
24796A001
24796A003
24796A013
11829A000
11829A001
18833A001
18832A002
24799A000
24799A001
24799A002
24798B020
24798B021
24798B022
24798B023
24798B024
24798B025
24798B026
24954A000
24954A001
24954A002
24953B000
24953B001
24953B002
24953B003
05876A167
05876A166
18753A006
18753A005
24962A001
24962A002
24962A003
24962A004
24962A005
24962A006
24962A007
24955A000
24955A001
24955A002
24955A003
24955A004
24955A005
24955A009
M01520A000
05059A263
03210A000
05022A043
05022A092
Model
DP120-12, DP90-18, DP85-20, DP80-20, DP70-22
DP55-28
DP28-55, DP40-38
ALL MODELS
ALL MODELS
ALL MODELS
DP28-55, DP40-38
DP28-55, DP40-38
DP28-55, DP40-38
ALL MODELS
DP120-12, DP90-18, DP 85-20, DP80-20, DP70-22
DP55-28
DP28-55, DP40-38
DP120-12, DP90-18, DP 85-20, DP80-20, DP70-22
DP55-28
DP28-55, DP40-38
ALL MODELS
ALL MODELS
ALL MODELS
ALL MODELS
DP120-12
DP90-18, DP 85-20, DP80-20, DP70-22
DP55-28, DP40-38, DP28-55
DP120-12
DP90-18, DP 85-20
DP80-20
DP70-22
DP55-28
DP40-38
DP28-55
DP120-12
DP90-18, DP 85-20
DP80-20
DP70-22
DP55-28
DP40-38
DP28-55
DP70-22
DP55-28, DP40-38, DP28-55
DP70-22
DP55-28, DP40-38, DP28-55
DP120-12
DP90-18, DP 85-20
DP80-20
DP70-22
DP55-28
DP40-38
DP28-55
DP120-12
DP90-18, DP 85-20
DP80-20
DP70-22
DP55-28
DP40-38
DP28-55
ALL MODELS
ALL MODELS
ALL MODELS
ALL MODELS
9
23833A148 06/21/17
17
5
4
24
23
7
3
16
22
10
13
26
18
6
20
2
25
21
DP80-20
(2 1/4 Ø)
12
19
14
27
8
15
11
30
1
31
9
31
27
30
27
27
27
27
30
30
30
30
31
DP120-12
(2 1/4 Ø)
27
31
30
DP90-18
DP85-20
(2 1/4 Ø)
31
28
DP70-22
(2 Ø)
29
28
DP55-28
(1 3/4 Ø)
29
31
DIMENSIONS, S.A.E. "C" FACE MOUNTING
23833A148 06/21/17
10
DP40-38
(1 1/2 Ø)
28
29
28
31
DP28-55
(1 1/4 Ø)
29
THIS PAGE INTENTIONALLY LEFT BLANK
STANDARD LIMITED WARRANTY
CENTRIFUGAL & RECIPROCATING PUMPS
Pentair Myers® warrants its products against defects in material and workmanship for a period of 12 months from
the date of shipment from Pentair Myers or 18 months from the manufacturing date, whichever occurs first – provided
that such products are used in compliance with the requirements of the Pentair Myers catalog and technical manuals.
During the warranty period and subject to the conditions set forth, Pentair Myers, at its discretion, will repair or
replace to the original user, the parts that prove defective in materials and workmanship. Pentair Myers reserves the
right to change or improve its products or any portions thereof without being obligated to provide such a change or
improvement for prior sold and/or shipped units.
Seals, piston cups, packing, plungers, liners and valves used for handling clear, fresh, nonaerated water at a
temperature not exceeding 120ºF are warranted for ninety days from date of shipment. All other applications are
subject to a thirty day warranty. Accessories such as motors, engines and auxiliary equipment are warranted by
the respective manufacturer and are excluded in this standard warranty. Under no circumstance will Pentair Myers
be responsible for the cost of field labor, travel expenses, rented equipment, removal/reinstallation costs or freight
expenses to and from the factory or an authorized Pentair Myers service facility.
This limited warranty will not apply: (a) to defects or malfunctions resulting from failure to properly install, operate
or maintain the unit in accordance with the printed instructions provided; (b) to failures resulting from abuse, accident
or negligence; (c) to normal maintenance services and parts used in connection with such service; (d) to units that
are not installed in accordance with applicable local codes, ordinances and good trade practices; (e) if the unit is
moved from its original installation location; (f) if unit is used for purposes other than for what it is designed and
manufactured; (g) to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized
Pentair Myers service provider; (h) to any unit that has been repaired using non factory specified/OEM parts.
Warranty Exclusions: PENTAIR MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND THE
DESCRIPTION ON THE FACE HEREOF. PENTAIR MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
Liability Limitation: IN NO EVENT SHALL PENTAIR MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL,
INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY PENTAIR MYERS
PRODUCT OR PARTS THEREOF. PERSONAL INJURY AND/OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER
INSTALLATION. PENTAIR MYERS DISCLAIMS ALL LIABILITY, INCLUDING LIABILITY UNDER THIS WARRANTY, FOR
IMPROPER INSTALLATION. PENTAIR MYERS RECOMMENDS INSTALLATION BY PROFESSIONALS.
Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or
consequential damages and therefore such limitations may not apply to you. No warranties or representations at any
time made by any representatives of Pentair Myers shall vary or expand the provision hereof.
1101 MYERS PARKWAY
ASHLAND, OHIO, USA 44805
855-274-8948
WWW.FEMYERS.COM
Warranty Rev. 12/13
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