Instruction Manual
Page 6 of 40 Issue: 2.1
N:\Engineering\Manuals\Pump Unit E2-30 & 40 R2.1.doc
Operating Principle – Section 1.2
The Piston Assembly is a unique design as this has the Inlet ball built in to save on
space.
The outlet ball check is spring assisted to minimise pressure drop at change over.
A bellows provides the fluid seal on the connecting rod within the inlet chamber,
whilst a piston lip seal maintains the pump fluid pressure within the pressure
chamber.
If the main piston seal starts to pass fluid due to wear, any leakage passes into the
inlet chamber.
Suction Stroke
Pressure Stroke
To Next Page
Loading...
