Patriot - Testing & Adjusting Manual
Rev. 01/2016
Page | 17
UP STROKE:
The piston seal seals on the
piston, the piston body ball seals in its seat;
everything above the piston body is pushed
out. A vacuum is created below the piston
body and new material is drawn in.
Piston body ball seals forcing all the material
above the piston out of the pump
Inlet valve ball lifts from its seat and new
material is drawn into the pump inlet body.
PUMP INLET
PUMP OUTLET
UP STROKE