The simple design and operation of air-driven, double-diaphragm pumps offer many advantages over other types of pumps. Cascade Machinery carries and recommends the SandPIPER® Pumps air-driven, double-diaphragm pumps.
Pumps abrasive and shear-sensitive materials
Low internal velocities move abrasives easily, with no damage to the pump. The gentle pumping action does not sheer fragile materials.
Pumps viscous materials
Even heavy or solids-laden materials can be pumped. SandPIPER Pumps move everything from water to peanut butter.
Seal less, with no motors
These air-driven pumps, with no motors, seals or packing to leak, are environmentally friendly.
Self-priming
The pumps are able to dry prime under most suction lift and flooded suction conditions.
Runs dry without damage
SandPIPER Pumps can run dry without damage, unlike other types of pumps.
Variable flow
Simply regulate the inlet air supply to adjust the pump flow from zero to maximum capacity.
Optional porting
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Many discharge porting options are available, including top, bottom, side and dual
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Select top porting for thing liquids, or if entrained air could be a problem.
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Select bottom porting for thick or solids-laden materials
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Select side or dual porting for specialized applications.
Deadheads against closed discharge
Excessive back pressure stops pump without damage. No need for expensive bypass systems or pressure relief valves. Pump simply stops operation until discharge opens.