PIUSI MA air-operated diaphragm pumps are designed to assure the utmost reliability and highest performance levels. The sturdy central polypropylene body, the lateral half-shells and aluminium or polypropylene suction and delivery manifolds plus the use of high quality NBR diaphragms make it possible to transfer fluids with high apparent viscosities, even when contaminated with suspended solids as in the case of spent oil.

The pneumatic circuit is a guarantee of safety and the construction principle makes Piusi MA pumps particularly suitable for severe duty conditions or operation in potentially explosive atmospheres (ATEX certification for zone 2).

Piusi MP pumps are self-priming and can run dry without damage; they also allow fine tuning of speed without pressure loss.

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