3. Design and function
3.1. Area of application and design
The piston pump units with reservoir described here
are characterized by their their compact
construction. Depending on the model design, they
are suitable for supplying lubricant to centralized
lubrication systems with progressive distributors on
machines, systems or vehicles ( Table4). Piston
pump units with reservoir deliver greases up to
NLGI Grade 2.
Piston pump units with reservoir differ in the way
they can be electrically connected as well as in the
control and monitoring of functions. Up to two
independent zones can be operated by installing a
maximum of two pump elements.
The standard design of piston pump units with
reservoir consist of a pump housing and a lubricant
reservoir.
The lubricant reservoir is made of plastic and is
equipped with a spring-loaded follower piston.
The pump housing contains the electric motor, the
mechanics for driving the pump elements and,
depending on the model design, the control unit. All
other functional and connection elements are
arranged on the pump housing.
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