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Principles of the Z-Series Coro-Vane
Truck Pumps
The Corken Z-Series truck pump is a special type of rotary
positive displacement pump, known as a sliding vane pump.
The sliding vane pump has many of the positive
displacement advantages of the gear pump, plus the ability
to compensate for wear, and operate at a lower noise level.
The sliding vane pump consists of a rotor turning in a cam
(liner) machined eccentrically in relation to the rotor; thereby
displacing the liquid trapped between the rotor, cam and
vanes. The Corken Z-Series pumps are made with vanes
produced from advanced polymers which exhibit extremely
low coefficients of friction. The vanes are self-adjusting for
wear which gives the pump long life.
Exclusive Features of Your Z-Series
®
Coro-Vane
Truck Pumps
The pumping of volatile liquids is one of the most difficult
of all pumping jobs, and pumping from a delivery truck
makes it even more difficult, so more attention must be
given to the design and manufacture of the pump and to
its installation and operation.
In addition to being especially suited for handling volatile
liquids, your Z-Series pump has a number of features to
help make it more easily operated and maintained.
This model has been registered and listed by the
UNDERWRITERS' LABORATORIES, INC. for use in the
handling of LP-Gas and Ammonia.
The CASE AND HEADS are made of ductile iron for extra
strength and toughness.
The VANES are manufactured of advanced polymers to
provide excellent life and quiet operation. After long service,
the vanes are simply and inexpensively replaced.
Both the CAM and the SIDEPLATES are easily replaced
should the need arise. Sideplates may be reversed for
extended service lite.
The MECHANICAL SEAL is designed for longer life under
greater loads and may be inspected or replaced without
disturbing the piping of the pump. No special tools are needed.
BEARINGS are heavy-duty roller type for long bearing life.
PRESSURE GAUGE connections, 1/4" pipe thread, are provided.
The RELIEF VALVE is built-in and nonadjustable. The valve
is preset at the factory.
®
NOTE: EVEN WITH THIS INTERNAL SAFETY VALVE,
AN EXTERNAL BY-PASS VALVE MUST BE INSTALLED.
Installation of Your Corken Z-Series
®
Coro-Vane
Pump
The installation of the Z-Series CORO-VANE
simple. However, in order for the pump to deliver optimum
performance, the principles discussed in this book should
be followed. The piping details are furnished to illustrate
methods proved by hundreds of installations. Your own needs
may require slight variations, but every effort should be made
to follow the recommendations identified in this manual.
For the transfer of flammable liquids like LPG, the pump
must be installed according to the applicable local safety
and health regulations. The installer and/or the user must
take into account the following:
• Potential risk due to local conditions regarding the
installation and operation (e.g. poor ventilation and
additional risks due to other elements in the vicinity, etc.).
• Qualification of the personnel.
• Type of liquid being transferred.
• Specific safety measures to be applied (e.g. gas
detection, automatic shut-off valves, personal
protection equipment, etc.).
The following table shows the weight of the bare pump for
each model. For handling a bare pump, lifting slings should
be used. Web slings are preferred over metal slings to
minimize damage to the paint.
Model
Z2000
Z3200
Z4200
See Appendix D for outline dimensions.
A rotation arrow is located on the side of the pump so check the
PTO to determine its direction of rotation. The Z-Series pump
will match either PTO rotation. Connect the drive shaft to the
pump shaft that turns the pump in the direction of the arrow.
The PTO selection is important. The pump requires a PTO
with an average output speed of 500 to 800 RPM when the
truck engine is operating at the proper speed to maintain
oil pressure and water circulation.
The DRIVESHAFT connecting the pump to the PTO should
be of the "splined" or slip type. This type driveshaft permits
the shaft to adjust for PTO movement and twisting of the truck
4
Shipping Weight
lb
kg
100
45.4
140
63.5
275
124.7
®
pump is
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