As the diaphragm rises away from the bottom of the casing it produces a vacuum which draws the liquid into the casing through the suction valve. When the diaphragm is on the downstroke, the liquid is expelled through the delivery valve.
Ideal for pumping thick, muddy, abrasive liquids with solids in suspension.
Transfer and agriculture
|LB 80 V|
|LB 80 V2|