ITW Dynatec Page 1
Appendix Pumps Rev.10.15
Gear Pumps, Safety and Operation
These instructions should be read thoroughly by all personnel involved with pump
operation prior to pump installation, operation, or maintenance.
If operation of this pump is critical to your business, we strongly recommend you keep a
spare pump in stock at all times. As a minimum, a seal kit (O-rings, gaskets, and shaft
seal) should be kept in stock so pump refurbishment after internal inspection can be
General Description
ITW Dynatec’s metering gear pumps are manufactured to precise tolerances. To retain
their high performance, these pumps must be carefully installed and maintained. These
pumps are CE (Declaration of Conformity) rated.
The gear pumps are positive-displacement. A single, drive shaft transmits force / torque
to one or more driving gears, which then engage and deliver force / torque to one or more
driven gears. Fluid is directed into the pump through the inlet stream(s). The fluid fills the
exposed spaces between the gear teeth, then is conveyed around the inside of the gear
housing as the gears turn. Once the path is completed, the gear teeth mesh together and
the fluid is displaced. The fluid flows out of the pump through the discharge port(s). There
may be multiple, driven gears, each with its own, associated discharge port. There may
be single or dual stream pump assemblies.
This manual will not cover all situations which might arise with regard to installation,
operation, inspection and maintenance of the pump supplied. ITW Dynatec assumes the
personnel assigned to install, operate and maintain the supplied equipment have
sufficient technical knowledge to apply generally accepted safety and operational
practices, which may not be otherwise covered.
Gear Pump types
Delivery rate/
revolution: cc/rev
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