859.0530, Verder VA-EH25 Electric-Operated

Operation
VA--EH25 Electric
Electric--Operated
Verder VA
859.0530
Diaphragm Pump
For fluid transfer in sanitary applications. For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual. Save these
instructions.
For maximum operating pressures, see
the Performance Charts on pages 19 and
20
See pages 3 and 4 for model information,
including approvals.
Rev.E
EN
Contents
Related Manuals ................................................ 2
Compressor Wiring ............................................. 18
Configuration Number Matrix ............................... 3
Operation ........................................................... 19
Initial Configuration (AC with VFD) ................ 19
Sanitize the Pump Before First Use............... 19
Transfer Mode Vs. Low Pulsation
Mode ............................................. 19
Start and Adjust the Pump ............................ 19
Pressure Relief Procedure............................ 20
Pump Shutdown .......................................... 20
Warnings ........................................................... 5
Overview............................................................ 8
Installation.......................................................... 10
General Information ..................................... 10
Tips to Reduce Cavitation............................. 10
Mount the Pump .......................................... 11
Grounding ................................................... 12
Air Line........................................................ 14
Fluid Supply Line ......................................... 14
Fluid Outlet Line........................................... 14
Leak Sensor ................................................ 15
Leak Sensor Wiring (AC Models) .................. 15
Electrical Connections for AC Models .................. 16
Wire Connections at the Variable
Frequency Drive (VFD) ................... 16
Wire Connections at the Motor...................... 16
Wire Connections at the ATEX Motor ............ 17
Wire Connections at the Explosionproof
Motor ............................................. 17
Maintenance ...................................................... 21
Maintenance Schedule ................................. 21
Lubrication................................................... 21
Tighten Connections .................................... 21
Flushing and Storage ................................... 21
Performance Charts............................................ 22
Dimensions (typical only) .................................... 26
Technical Data ................................................... 28
Customer Services/Guarantee............................. 30
Related Manuals
Manual Number
Title
859.0531
Verder VA-EH25 Electric-Operated Diaphragm Pump, Repair/Parts
2
859.0530
Configuration Number Matrix
Configuration Number Matrix
Check the identification plate (ID) for the
Configuration Number of your pump. Use the
following matrix to define the components of your
pump.
VA--EH25SA SE NW SP T4 AC
Sample Configuration Number: VA
VA--EH25
VA
S
A
SE
NW
SP
T4
Pump Model
Wetted
Section
Material
Center
Section
Material
Seats
Balls
Diaphragm
Connections Drive
Pump
Wetted Section
Material
VA--EH25 S Sanitary
VA
Stainless
Steel
Center Section Seat Material
Material
Ball Material
Polychloroprene
Sanitary Stainless Steel NW
Weighted
A Aluminum
SE with EPDM O-rings
S Sanitary
ST Sanitary Stainless Steel SP Santoprene
Stainless
Steel
with PTFE O-rings
TF
Diaphragm Material
TO
TF
SP
PTFE/EPDM Overmolded
2–piece PTFE/EPDM
Santoprene
859.0530
AC
Connections
40 mm DIN 11851
D4
T4
1.5 in. Tri-Clamp
PTFE
Drive
AC
NG‡
IG‡
230/460 VAC
NEMA Gearbox
IEC Gearbox
3
Configuration Number Matrix
Approvals
Approvals
All Models are certified to:
Models which do not contain Santoprene*:
‡ Pumps with code NG or IG are certified to:
II 2 G ck IIB T3 Gb
* EC 1935/2004 compliant pumps may be subject to individual national provisions in addition to those
specified in the EC regulation. It is the users responsibility to know and follow local laws.
4
859.0530
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific
risks. When these symbols appear in the body of this manual or on warning labels, refer back to these
Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout
the body of this manual where applicable.
WARNING
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the system can cause electric
shock.
• Turn off and remove power before disconnecting any cables and before servicing or installing equipment.
For cart-mounted models, unplug the power cord. For all other units, disconnect power at the main switch.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations.
• Wait five minutes for capacitor discharge before opening equipment.
• For cart-mounted models, use only 3-wire extension cords.
• For cart-mounted models, ensure ground prongs are intact on any power and extension cords.
• For cart-mounted models, do not expose to rain. Store indoors.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or solvent
flowing through the equipment can cause static sparking. To help prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Ground all equipment in the work area. See Grounding instructions.
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Use only grounded hoses.
• Stop operation immediately if static sparking occurs or you feel a shock.. Do not use equipment until
you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
Static charge may build up on plastic parts during cleaning and could discharge and ignite flammable
vapors. To help prevent fire and explosion:
• Clean plastic parts only in well ventilated area.
• Do not clean with a dry cloth.
• Do not operate electrostatic guns in equipment work area.
859.0530
5
Warnings
WARNING
PRESSURIZED EQUIPMENT HAZARD
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and cause
serious injury.
• Follow the Pressure Relief Procedure when you stop spraying/dispensing and before cleaning, checking,
or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about
your material, request Safety Data Sheet (SDS) from distributor or retailer.
• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create
safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical
reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or
property damage.
• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids
containing such solvents.
• Do not use chlorine bleach.
• Many other fluids may contain chemicals that can react with aluminum. Contact your material supplier
for compatibility.
6
859.0530
Warnings
WARNING
THERMAL EXPANSION HAZARD
Fluids subjected to heat in confined spaces, including hoses, can create a rapid rise in pressure due to the
thermal expansion. Over-pressurization can result in equipment rupture and serious injury.
• Open a valve to relieve the fluid expansion during heating.
• Replace hoses proactively at regular intervals based on your operating conditions.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read SDS to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns:
• Do not touch hot fluid or equipment.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye
injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is not
limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
859.0530
7
Overview
Overview
The product line offers electric-powered diaphragm
pumps in a wide range of models. This section shows
the structure of available models.
Center
Section
Aluminum or
Stainless
Steel
Motor
Type
Controller
Gearbox
Compressor
Approval
Options
Cart
AC
VFD — not included.
Yes – part of
motor
No †
CE
No*
None
None
None
ATEX & CE
No*
NEMA
IEC
†Compressor Kits 859.0465 (120V) and 859.0466 (240V) are available
* Cart Kit 859.0467 is available.
Key Points:
• Pumps are available with an AC gearmotor or with
just a gearbox (for applications where a motor is
already available).
• Verder recommends the use of a motor soft starter
or a VFD in the electrical circuit for all installations.
8
See the motor manufacturer’s recommendations
for proper installation when using either of these
components. In all cases, make sure all products
are installed in accordance with local codes and
regulations.
859.0530
Overview
Relationship Table
Use this table to locate your pump configuration number. Obtain the configuration number from the designation
tag attached to the pump housing. Compare this configuration number against the information provided in the
Configuration Number Matrix, page 3 to obtain the types of material being used. Then locate the applicable
fluid section repair kit number for the pump.
Fluid Section Repair
Kit
Seat Type
Ball Type
Diaphragm Type
Pump Configuration Number
859.0474
SE
NW
SP
VA-EH25SA SE NW SP T4 AC
VA-EH25SA SE NW SP D4 AC
VA-EH25SA SE NW SP T4 NG
VA-EH25SA SE NW SP D4 NG
VA-EH25SA SE NW SP T4 IG
VA-EH25SA SE NW SP D4 IG
859.0475
ST
TF
TO
VA-EH25SS ST TF TO T4 AC
VA-EH25SS ST TF TO D4 AC
VA-EH25SS ST TF TO T4 NG
VA-EH25SS ST TF TO D4 NG
VA-EH25SS ST TF TO T4 IG
VA-EH25SS ST TF TO D4 IG
859.0476
ST
TF
TF
VA-EH25SA ST TF TF T4 AC
VA-EH25SA ST TF TF D4 AC
VA-EH25SS ST TF TF T4 AC
VA-EH25SS ST TF TF D4 AC
VA-EH25SA ST TF TF T4 NG
VA-EH25SA ST TF TF D4 NG
VA-EH25SS ST TF TF T4 NG
VA-EH25SS ST TF TF D4 NG
VA-EH25SA ST TF TF T4 IG
VA-EH25SA ST TF TF D4 IG
VA-EH25SS ST TF TF T4 IG
VA-EH25SS ST TF TF D4 IG
859.0478
SE
SP
SP
VA-EH25SA SE SP SP T4 AC
VA-EH25SA SE SP SP D4 AC
VA-EH25SS SE SP SP T4 AC
VA-EH25SS SE SP SP D4 AC
VA-EH25SA SE SP SP T4 NG
VA-EH25SA SE SP SP D4 NG
VA-EH25SS SE SP SP T4 NG
VA-EH25SS SE SP SP D4 NG
VA-EH25SA SE SP SP T4 IG
VA-EH25SA SE SP SP D4 IG
VA-EH25SS SE SP SP T4 IG
VA-EH25SS SE SP SP D4 IG
859.0530
9
Installation
Installation
General Information
Tips to Reduce Cavitation
The Typical Installation shown is only a guide
for selecting and installing system components.
Contact your Verder distributor for assistance in
planning a system to suit your needs. Always use
Genuine Verder Parts and Accessories. Be sure all
accessories are adequately sized and pressure rated
to meet the system’s requirements.
Cavitation in a double diaphragm pump is the
formation and collapse of bubbles in the pumped
liquid. Frequent or excessive cavitation can cause
serious damage, including pitting and early wear of
fluid chambers, balls, and seats. It may result in
reduced efficiency of the pump. Cavitation damage
and reduced efficiency both result in increased
operating costs.
Reference letters in the text, for example (A), refer to
the callouts in the figures located near the reference.
If a callout is on a figure located elsewhere in the
manual, the reference will indicate where to look
within the manual.
Pumps with aluminum center sections may exhibit
fading or signs of corrosion depending on cleaning
solutions used.
Cavitation depends on the vapor pressure of the
pumped liquid, the system suction pressure, and the
velocity pressure. It can be reduced by changing any
of these factors.
1. Reduce vapor pressure: Decrease the
temperature of the pumped liquid.
2. Increase suction pressure:
a. Lower the installed position of the pump
relative to the liquid level in the supply.
b. Reduce the friction length of the suction
piping. Remember that fittings add friction
length to the piping. Reduce the number of
fittings to reduce the friction length.
c.
Increase the size of the suction piping.
d. Increase the Net Positive Suction Head
(NPSH). See Performance Charts, page 22.
NOTE: Be sure the inlet fluid pressure does not
exceed 25% of the outlet working pressure.
3. Reduce liquid velocity: Slow the cyclic rate of
the pump.
Pumped liquid viscosity is also very important but
normally is controlled by factors that are process
dependent and cannot be changed to reduce
cavitation. Viscous liquids are more difficult to pump
and more prone to cavitation.
Verder recommends taking all of the above factors
into account in system design. To maintain pump
efficiency, supply only enough power to the pump to
achieve the required flow.
Verder distributors can supply site-specific
suggestions to improve pump performance and
reduce operating costs.
10
859.0530
Installation
Mount the Pump
To avoid serious injury or death from toxic fluid or
fumes:
• Never move or lift a pump under pressure. If
dropped, the fluid section may rupture. Always
follow the Pressure Relief Procedure, page 20,
before moving or lifting the pump.
2. Make sure the surface is flat and that the pump
doesn’t wobble.
NOTICE
The pump is heavy. To prevent damage from
dropping, always use 2 people or a lift to move the
pump. Do not use the manifolds to lift the pump.
Use at least one strap or lift ring on the pump.
1. For all mountings, be sure the pump is secured
with screws through the mounting bracket on the
gear box. See Dimensions (typical only), page 26.
NOTICE
To prevent pump damage, use all four
fasteners to attach the bracket to the mounting
location. Do not use the feet on the inlet
manifold for mounting.
859.0530
3. For ease of operation and service, mount the
pump so fluid inlet and fluid outlet ports are easily
accessible.
4. Cart Mounting: For all models, Cart Mounting Kit
859.0467 is available.
NOTICE
To prevent unstable loading due to an offset
center of gravity, lift the cart by using straps
attached at multiple points on the cart rather
than attempting to lift the pump and cart using
only the pump lift ring.
11
Installation
Grounding
• Motor: AC motors have a ground screw in the
electrical box. Use it to ground the motor to the
VFD.
The equipment must be grounded to reduce the
risk of static sparking and electric shock. Electric
or static sparking can cause fumes to ignite or
explode. Improper grounding can cause electric
shock. Grounding provides an escape wire for the
electric current.
• Always ground the entire fluid system as
described below.
• Follow your local fire codes.
Before operating the pump, ground the system as
explained below.
• Pump: Loosen the grounding screw (R). Insert one
end of a 12–gauge minimum ground wire behind
the ground screw and tighten the screw securely.
Connect the clamp end of the grounding wire to a
true earth ground.
12
• Air Line and Fluid hoses: Use only grounded
hoses with a maximum of 150 m (500 ft) combined
hose length to ensure grounding continuity. Check
electrical resistance of hoses. If total resistance
to ground exceeds 29 megohms, replace hose
immediately.
• Fluid supply container: Follow local code.
• Solvent pails used when flushing: Follow local
code. Use only conductive metal pails, placed
on a grounded surface. Do not place the pail
on a nonconductive surface, such as paper or
cardboard, which interrupts grounding continuity.
• VFD: Ground the variable frequency drive (VFD)
through a proper connection to the electrical
system. Refer to the VFD manual for grounding
instructions.
Check your system ground continuity after the initial
installation, and then set up a regular schedule for
checking continuity to be sure proper grounding is
maintained. The resistance to earth ground should
not exceed 1 ohm.
859.0530
Installation
Figure 1 Typical Installation
System Components
A
Power cord to VFD
B
Fluid inlet port
C Fluid outlet port
D Mounting feet
E
Air inlet valve
859.0530
Accessories/Components Not Supplied
F
Grounded, flexible air supply hose
Bleed-type master air valve
G
H
Air filter/regulator assembly
J
Master air valve (for accessories)
K
Grounded, flexible fluid supply hose
L
Fluid drain valve (may be required for your pump
installation)
M
Fluid shutoff valve
N
Grounded, flexible fluid outlet hose
P
Ground wire and clamp (required)
13
Installation
Air Line
If using a Verder Compressor Kit:
An air line is provided in the kit which must be
installed between the compressor and the pump air
inlet.
Using Your Own Compressor:
Connect the air line from the compressor to the inlet
valve on the pneumatic enclosure (28).
Using Shop Air:
NOTE: Callouts are located on Figure 1
1. Install an air filter/regulator assembly (H). The
fluid stall pressure will be the same as the setting
of the air regulator. The filter removes harmful
dirt and moisture from the compressed air supply.
2. Locate a bleed-type master air valve (G) close to
the pump and use it to relieve trapped air. Be
sure the valve is easily accessible from the pump
and located downstream from the regulator.
4. Install a grounded, flexible air hose (F) between
the accessories and the 3/8 npt(f) pump air inlet.
Fluid Supply Line
1. Connect a grounded, flexible fluid hose (K) to
the fluid inlet port. The port is 3.8 cm (1.5 in.)
sanitary Tri-Clamp flange or 40 mm DIN 11851.
2. If the inlet fluid pressure to the pump is more
than 25% of the outlet working pressure, the ball
check valves will not close fast enough, resulting
in inefficient pump operation. Excessive inlet
fluid pressure also will shorten diaphragm life.
Most materials should require no more than 0.21
bar (0.02 MPa, 3 psi) fluid inlet pressure.
3. For maximum suction lift (wet and dry), see
Technical Data, page 28. For best results, always
install the pump as close as possible to the
material source. Minimize suction requirements
to maximize pump performance.
Fluid Outlet Line
Trapped air can cause the pump to cycle
unexpectedly, which could result in serious
injury from splashing.
1. Connect a grounded, flexible fluid hose (K) to
the fluid inlet port. The port is 3.8 cm (1.5 in.)
sanitary flange or 40 mm DIN 11851.
2. Install a fluid drain valve (L) near the fluid outlet.
3. Install a shutoff valve (M) in the fluid outlet line.
3. Locate another master air valve (J) upstream
from all air line accessories and use it to isolate
them during cleaning and repair.
14
859.0530
Installation
Leak Sensor
The optional leak sensor (Kit 859.0508) is highly
recommended to avoid operating the pump with
a ruptured diaphragm. To install the leak sensor,
remove plug 123. Install the bushing and leak
sensor. NOTE: The arrow on the leak sensor must
point down.
Leak Sensor Wiring (AC Models)
Follow these instructions to wire the optional Leak
Sensor Kit 859.0508 to a VFD.
NOTE: The leak sensor is designed to operate as
NOTE
a normally-closed circuit.
1. Select and purchase a cable from the following
table.
3. Turn off power to the VFD.
4. Open the access cover on the VFD.
5. Attach the blue and black leads to the detection
circuit in the VFD.
NOTE: Refer to the VFD manual for proper
NOTE
connection points.
Part Number
Cable Length
6. Indivdually terminate the two remaining leads.
859.0517
3.0 m (9.8 ft)
7. Close the access cover.
859.0518
.7.5 m (24.6 ft)
8. Turn on power to the VFD.
859.0519
16 m (52.5 ft)
9. Configure the VFD to monitor the leak sensor
circuit.
2. After installing the leak sensor, connect the
selected cable to the installed leak sensor.
859.0530
15
Electrical Connections for AC Models
Electrical Connections for AC Models
4. For 460V Wiring: The motor comes wired for
460V. If this is the voltage you want, the existing
wiring can remain as it is. Connect power wires
L1 to U1, L2 to V1 and L3 to W1, as shown.
W3
To avoid injury from fire, explosion, or electric
shock, all electrical wiring must be done by a
qualified electrician and comply with all local codes
and regulations.
Always check the motor manufacturer’s manual for
the proper technical and installation information.
Follow the instructions in the motor manufacturer’s
manual. When using a Verder inverter duty-rated
motor, use of a properly-sized VFD or a motor
soft–starter is recommended. In all cases, wire size,
fuse size, and other electrical devices must comply
with all local codes and regulations.
Wire Connections at the Variable
Frequency Drive (VFD)
U3
V3
W2
U2
V2
U1
V1
W1
L1
L2
L3
Figure 2 Connections for 460V Wiring
5. For 230V Wiring: Move the black wire (U3), the
red wire (V3) and the blue wire (W3) as shown.
Using the bridges supplied with the motor, bridge
W2, U2, and V2. Then connect power wires L1
to U1, L2 to V1 and L3 to W1.
Follow the instructions in the VFD manufacturer’s
manual.
NOTICE
To avoid equipment damage, do not plug the
motor directly into a wall socket. The motor must
be wired to a VFD.
Wire Connections at the Motor
Install the wiring at the motor as follows:
W2
U2
V2
U1
V1
W1
L1 U3
L2 V3
L3 W3
Figure 3 Connections for 230V Wiring
1. Open the motor’s electrical box.
6. Torque terminals to 2.3 N•m (20 in-lb).
2. Install wiring system with proper liquid-tight
connections in one of the ports at the side of the
motor box.
7. Close the motor electrical box. Torque the
screws to 2.3 N•m (20 in-lb).
3. Connect the green ground wire to the ground
screw.
16
859.0530
Electrical Connections for AC Models
Wire Connections at the ATEX Motor
Wire Connections at the
Explosionproof Motor
(Optional kit 859.0523)
Install the wiring at the motor as follows:
(Optional kit 859.0522)
1. Open the motor’s electrical box.
Install the wiring at the motor as follows:
2. Install wiring system with proper connections to
the motor electrical box.
1. Open the motor’s electrical box.
3. Connect the green ground wire to the ground
screw.
4. For 415V Wiring: Bridge as shown, then connect
wire L1 to U1, L2 to V1, and L3 to W1.
W2
U2
V2
U1
V1
W1
L1
L2
L3
Figure 4 Connections for a 415V Wiring
5. For 240V Wiring: Connect wire L1 to U1, L2 to
V1, and L3 to W1. Bridge as shown.
2. Install wiring system with proper connections to
the motor electrical box.
3. Connect the green ground wire to the ground
screw.
4. For 460V Wiring: Connect wire L1 to T1, L2 to
T2, and L3 to T3, and bridge the other wires, as
shown.
T1
T2
T3
T4
T7
T5
T8
T6
T9
L1
L2
L3
Figure 6 Connections for 460V Wiring
5. For 230V Wiring: Bridge the wires as shown.
Then, connect L1 to T1/T7, L2 to T2/T8, and L3
to T3/T9.
W2
U2
V2
U1
V1
W1
L1
L2
L3
Figure 5 Connections for a 240V Wiring
6. Torque terminals to 20 in-lb (2.3 N•m).
7. Close the motor electrical box. Torque the
screws to 20 in-lb (2.3 N•m).
T1
T7
T2
T8
T3
T9
T4
T5
T6
L1
L2
L3
Figure 7 Connections for 230V Wiring
6. Option: Connect thermostat wires P1 and P2 to
external overload detection. Thermostat is NC
(normally closed).
7. Close the motor electrical box. Torque the
screws to 20 in-lb (2.3 N•m).
859.0530
17
Compressor Wiring
Compressor Wiring
To avoid injury from fire, explosion, or electric
shock, all electrical wiring must be done by a
qualified electrician and comply with all local codes
and regulations.
Follow these instructions to wire Compressor
859.0465 (120V) or 859.0466 (240V).
2. Install wiring system with proper connections (i.e.
conduit/fittings, power cable/cable grip) to the
compressor electrical box.
NOTE: Use only copper wire with an insulation rating
of 75°C (167°F) or higher.
3. Connect line power (120VAC or 240 VAC,
depending on your compressor) to L1 and L2/N.
1. Remove the cover from the compressor’s
electrical box.
Connect supply ground to
. Use minimum
4 mm2 (12 AWG) wire when the system is
configured for a 16A circuit and 2.5 mm2 (14
AWG) when configured for a 12A circuit. Torque
terminals to 2.3 N•m (20 in-lb).
4. When powering the VFD on the same circuit as
the compressor, connect branch wiring to L1,
L2/N and Ground, then connect to the VFD. Use
the same wire sizing as in Step 2.
5. Reinstall the cover of the electrical box. Torque
screws to 2.3 N•m (20 in-lb).
B
A
L2
L1
KEY
A To power supply
B To controller
Figure 8 Wire Connections at the Compressor
18
859.0530
Operation
Operation
Initial Configuration (AC with VFD)
Start and Adjust the Pump
Configure the VFD according to the motor nameplate
information.
1. Be sure the pump is properly grounded. See
Grounding, page 12.
Sanitize the Pump Before First Use
2. Check fittings to be sure they are tight. Use a
compatible liquid thread sealant on male threads.
Tighten fluid inlet and fluid outlet fittings securely.
It is the user’s responsibility to properly sanitize
the pump before first use. It is up to the user
whether this will include disassembling and cleaning
individual parts or simply flushing pump with a
sanitizing solution. As necessary, follow the steps
under Start and Adjust the Pump, page 19 or under
Flushing and Storage, page 21.
3. Place the fluid supply hose in fluid to be pumped.
NOTE: If fluid inlet pressure to the pump is more
than 25% of outlet working pressure, the ball
check valves will not close fast enough, resulting
in inefficient pump operation.
NOTICE
Transfer Mode Vs. Low Pulsation
Mode
When the air pressure is at least 10 psi higher than
the desired outlet pressure, the pump is in Transfer
Mode and no pulsation damping is occurring. To
reduce outlet pulsation, start by setting the air
pressure equal to the desired outlet fluid pressure.
Continue to adjust the air pressure relative to the
outlet fluid pressure. Lower relative air pressures
produce more pulsation damping. Higher relative air
pressures produce better pump efficiency.
NOTE: Low pulsation mode may invalidate the
system k-factor. See the Low Pulsation chart in
Performance Charts, page 22.
Excessive fluid inlet pressure can reduce
diaphragm life.
4. Place the end of the fluid hose into an appropriate
container.
5. Close the fluid drain valve.
6. Turn the air regulator knob to match the desired
fluid stall pressure. Open all bleed-type master
air valves.
7. If the fluid hose has a dispensing device, hold it
open. Be sure all fluid shutoff valves are open.
8. VFD: Set the desired frequency.
9. Start the VFD.
10. If you are flushing, run the pump long enough to
thoroughly clean the pump and hoses.
859.0530
19
Operation
Pressure Relief Procedure
Follow the Pressure Relief Procedure
whenever you see this symbol.
3. Open the fluid drain valve (L) to relieve fluid
pressure. Have a container ready to catch the
drainage.
4. Close the pump air inlet valve on the pneumatic
enclosure.
5. Units with a compressor: Cycle the valve to
bleed any remaining air.
This equipment stays pressurized until pressure
is relieved manually. To help prevent serious
injury from pressurized fluid, such as splashing
in the eyes or on skin, follow the Pressure Relief
Procedure when you stop pumping and before you
clean, check, or service the equipment.
1. Remove power from the system.
Pump Shutdown
At the end of the work shift and before you check,
adjust, clean, or repair the system, follow the
Pressure Relief Procedure, page 20.
2. Open the dispensing valve, if used.
20
859.0530
Maintenance
Maintenance
Flushing and Storage
To avoid injury from fire, explosion, or electric
shock, all electrical wiring must be done by a
qualified electrician and comply with all local codes
and regulations.
To avoid fire and explosion, always ground
equipment and waste container. To avoid static
sparking and injury from splashing, always flush at
the lowest possible pressure.
Maintenance Schedule
Establish a preventive maintenance schedule
based on the pump’s service history. Scheduled
maintenance is especially important to prevent spills
or leakage due to diaphragm failure.
Insert suction tube into cleaning solution. Open air
regulator to supply low pressure air to the pump.
Run the pump long enough to thoroughly clean the
pump and hoses. Close the air regulator. Remove
the suction tube from the cleaning solution and drain
pump. Place suction tube in the fluid to be pumped.
The pump is lubricated at the factory. It is designed
to require no further lubrication for the life of the
bearings.
Flush the pump often enough to prevent the fluid
you are pumping from drying or freezing in the pump
and damaging it. Flushing schedule will be based on
what the pump is being used for. Use a compatible
cleaning solution and always cycle the pump during
the entire flushing process.
Tighten Connections
Always flush the pump and relieve the pressure
before storing it for any length of time.
Lubrication
Before each use, check all hoses for wear or damage
and replace as necessary. Check to be sure all
connections are tight and leak-free.
859.0530
NOTICE
Flush the pump often enough to prevent the
fluid you are pumping from drying or freezing in
the pump and damaging it. Store the pump at
0°C (32°F) or higher. Exposure to extreme low
temperatures may result in damage to plastic parts.
21
Performance Charts
Performance Charts
Test Conditions: The pump was tested in water with
the inlet submerged. The air pressure was set 0.7
bar (10 psi) higher than the outlet pressure.
How to Use the Charts
1. Choose a flow rate and outlet pressure that falls
below the Power Limit Curve. Conditions outside
of the curve will decrease the life of the pump.
outlet pressure lower than 0.7 bar (10 psi) and
with high inlet head pressure.
3. To prevent inlet cavitation erosion, the Net
Positive Suction Head Available (NPSHa) of your
system should be above the Net Positive Suction
Head Required (NPSHr) line shown on the chart.
2. Set the VFD frequency corresponding to the
desired flow rate. Flow rates will increase with
AC Pump
KEY
A
Power Limit Curve
B
Net Positive Suction Head Required
The shaded area is recommended for continuous
duty.
Pump Speed — Cycles per Minute
0
48
96
144
192
240
288
337
0.55
(5.5, 80)
0.48
(4.8, 70)
A
0.41
(4.1, 60)
Outlet
Pressure
MPa
(Bar, PSI)
0.34
(3.4, 50)
18
0.28
(2.8, 40)
15
12
0.21
(2.1, 30)
NPSHr
(meters
WC)
9
0.14
(1.4, 20)
6
B
0.07
(0.7, 10)
3
0
0
0
11 19
(3) (5)
38
(10)
57
(15)
76
(20)
95
(25)
114
(30)
132
(35)
Fluid Flow — lpm (gpm)
22
859.0530
Performance Charts
ATEX Motor and 18:1 Gearbox
Good for 2–pole, 3600 rpm, 1.5 kW motors (pump
codes NG, IG)
Pump Speed — Cycles per Minute
0
48
96
144
192
240
288
337
0.55
(5.5, 80)
0.48
(4.8, 70)
A
0.41
(4.1, 60)
Outlet
Pressure
MPa
(Bar, PSI)
0.34
(3.4, 50)
18
0.28
(2.8, 40)
15
12
0.21
(2.1, 30)
NPSHr
(meters
WC)
9
0.14
(1.4, 20)
6
B
0.07
(0.7, 10)
3
0
0
0
11 19
(3) (5)
38
(10)
57
(15)
76
(20)
95
(25)
114
(30)
132
(35)
Fluid Flow — lpm (gpm)
859.0530
23
Performance Charts
Low--Pulsation Mode
Low
KEY
Four typical running conditions are shown in the
curves. The curves show the relationship between
outlet pressure and outlet flow during Low Pulsation
Mode (above the transition line) and Transfer Mode
(below the transition line). Adjust the pump speed
and air pressure to achieve the desired result.
A
73 cycles per minute
B
145 cycles per minute
C 181 cycles per minute
D 217 cycles per minute
E
1.4 bar (20 psi) air pressure
F
2.8 bar (40 psi) air pressure
G 3.4 bar (50 psi) air pressure
H 4.1 bar (60 psi) air pressure
J
Transition line (Low Pulsation Mode is shaded.)
0.48
(4.8, 70)
0.41
(4.1, 60)
H
D
0.34
(3.4, 50)
G
C
0.28
Outlet
(2.8, 40)
Fluid
Pressure
0.21
F
(2.1, 30)
J
MPa
(Bar, PSI)
B
0.14
(1.4, 20)
E
A
0.07
(0.7, 10)
0
0
19
(5)
38
(10)
57
(15)
76
(20)
95
(25)
114
(30)
Fluid Flow — lpm (gpm)
24
859.0530
Performance Charts
How to Calculate Your System’s Net Positive Suction Head – Available
(NPSHa)
For a given flow rate, there must be a minimum
fluid head pressure supplied to the pump to prevent
cavitation. This minimum head is shown on the
Performance Curve, labeled as NPSHr. The units are
meters WC (Water Column) absolute. The NPSHa
of your system must be greater than the NPSHr to
prevent cavitation and therefore increase efficiency
and the life of you pump. To calculate the NPSHa of
your system, use the following equation:
NPSHa = Ha ± Hz – Hf – Hvp
Where:
Ha is the absolute pressure on the surface of the liquid in the supply tank. Typically, this is atmospheric
pressure for a vented supply tank, e.g. 10.4 m at sea level.
Hz is the vertical distance in meters between the surface of the liquid in the supply tank and the centerline of
the pump inlet. Value should be positive if the level is higher than the pump and negative if the level is lower
than the pump. Always be sure to use the lowest level the liquid can reach in the tank.
Hf is the total of the friction losses in the suction piping.
Hvp is the absolute vapor pressure of the liquid at the pumping temperature.
859.0530
25
Dimensions (typical only)
Dimensions (typical only)
Figure 9
26
859.0530
Dimensions (typical only)
Table 1 Dimensions for Aluminum Pumps
Gearbox and Motor
Gearbox Only
Ref.
in
cm
in
cm
A
13.1
33.3
13.1
33.3
B
18.1
46.0
18.1
46.0
C
19.1
48.5
19.1
48.5
D
15.5
39.4
NA
NA
E
5.0
12.7
5.0
12.7
F
10.2
25.9
10.2
25.9
G
17.6
44.7
17.6
44.7
H
24.9
63.2
17.0
43.2
J
4.0
10.2
4.0
10.2
K
28.9
73.4
21.0
53.3
L
3.0
7.6
3.0
7.6
859.0530
27
Technical Data
Technical Data
Metric
US
VA--EH25 Electric
Electric--Operated Double Diaphragm Pump
Verder VA
Maximum fluid working pressure
Air pressure operating range
Air inlet size
Maximum suction lift (reduced if balls don’t seat well due
to damaged balls or seats, lightweight balls, or extreme
speed of cycling)
Maximum size pumpable solids
Ambient air temperature range for operation and storage.
NOTE: Exposure to extreme low temperatures may result
in damage to plastic parts.
Fluid displacement per cycle
Maximum free-flow delivery
Maximum pump speed
Fluid Inlet and Outlet Size
Electric Motor
AC, Standard CE
Power
Speed
Gear Ratio
Voltage
Motorless Gearbox
NEMA (NG)
Mounting Flange
Gear Ratio
IEC (IG)
Mounting Flange
Gear Ratio
Noise Data
Sound Power (measured per ISO-9614–2)
at 4.8 bar fluid pressure and 50 cpm
at 2.76 bar fluid pressure and 280 cpm (full flow)
Sound Pressure [tested 1 m (3.28 ft) from equipment]
at 4.8 bar fluid pressure and 50 cpm
at 2.76 bar fluid pressure and 280 cpm (full flow)
28
70 psi
20 to 80 psi
4.8 bar, 0.48 MPa
1.4 to 5.5 bar, 0.14
to 0.55 MPa
3/8 in. npt(f)
Wet: 8.8 m
Wet: 29 ft
Dry: 4.9 m
Dry: 16 ft
1/8 in.
3.2 mm
32° F–104° F
0° C–40° C
0.10 gallons
35 gpm
0.38 liters
132.5 lpm
280 cpm
1.5 in. sanitary flange or 40 mm DIN 11851
1.5 kW
1800 rpm (60 Hz) or 1500 rpm (50 Hz)
8.16
3–phase 230V / 3–Phase 460V
NEMA 56 C
18.08
IEC 90
18.08
71 dBa
94 dBa
61 dBa
84 dBa
859.0530
Technical Data
Weights (typical only)
Pump Material
Motor/Gearbox
NEMA
NG
AC
Fluid Section
Center Section
Stainless Steel
Stainless Steel
IEC
IG
lb
kg
lb
kg
lb
kg
Aluminum
136
62
99
45
104
47
Stainless Steel
166
75
129
58
134
61
Weight
28 lb
33 lb
Compressor
Cart
Wetted Parts
13 kg
15 kg
Wetted parts include stainless steel, plus material(s) chosen for seat, ball, and diaphragm options
Non-wetted parts
Aluminum, coated carbon steel, bronze
Stainless Steel, aluminum, coated carbon steel, bronze
Fluid Temperature Range
NOTICE
Temperature limits are based on mechanical stress only. Certain chemicals will further limit the fluid
temperature range. Stay within the temperature range of the most-restricted wetted component. Operating
at a fluid temperature that is too high or too low for the components of your pump may cause equipment
damage.
Fluid Temperature Range
Diaphragm/Ball/Seat Material
Fahrenheit
Celsius
Polychloroprene check balls (NW)
40° to 200°F
4° to 90°C
PTFE overmolded diaphragm (TO)
40° to 220°F
4° to 104°C
PTFE check balls or two-piece PTFE/EPDM diaphragm (TF)
40° to 220°F
4° to 104°C
Santoprene® check balls or 2–piece PTFE/Santoprene diaphragm (SP)
-40° to
180°F
-40° to 82°C
859.0530
29
Customer Services/Guarantee
Customer Services/Guarantee
CUSTOMER SERVICES
If you require spare parts, please contact your local distributor, providing the following details:
• Pump Model
• Type
• Serial Number, and
• Date of First Order.
GUARANTEE
All VERDER pumps are warranted to the original user against defects in workmanship or materials under
normal use (rental use excluded) for two years after purchase date. This warranty does not cover failure of parts
or components due to normal wear, damage or failure which in the judgement of VERDER arises from misuse.
Parts determined by VERDER to be defective in material or workmanship will be repaired or replaced.
LIMITATION OF LIABILITY
To the extent allowable under applicable law, VERDER’s liability for consequential damages is expressly
disclaimed. VERDER’s liability in all events is limited and shall not exceed the purchase price.
WARRANTY DISCLAIMER
VERDER has made an effort to illustrate and describe the products in the enclosed brochure accurately;
however, such illustrations and descriptions are for the sole purpose of identification and do not express or
imply a warranty that the products are merchantable, or fit for a particular purpose, or that the products will
necessarily conform to the illustration or descriptions.
PRODUCT SUITABILITY
Many regions, states and localities have codes and regulations governing the sale, construction, installation
and/or use of products for certain purposes, which may vary from those in neighboring areas. While VERDER
attempts to assure that its products comply with such codes, it cannot guarantee compliance, and cannot
be responsible for how the product is installed or used. Before purchasing and using a product, please
review the product application as well as the national and local codes and regulations, and be sure that
product, installation, and use complies with them.
Original instructions. This manual contains English.
Revision E, February 2017
30
859.0530
Customer Services/Guarantee
859.0530
31
Customer Services/Guarantee
32
859.0530
859.0530
33
Austria
Verder Austria
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A-1230 Wien
AUSTRIA
Tel: +43 1 86 51 074 0
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CHINA
Tel: +86 21 33932950
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district,
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Fax: 02 9584085
email: office@verder.bg
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Ltd.
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Pune - 411019
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e-mail:
Sales@verder.co.in
www.verder.co.in
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Tel: +39 07 46 229064
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ZA Northriding
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Sales Switzerland
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Suite 101
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USA
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e-mail: sales@verderus.com
34
859.0530
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