IMPA: 591612

Polypropylene Pneumatic Diaphragm Pump P2 (IMPA 591612)

The Polypropylene Pneumatic Diaphragm Pump P2 (IMPA 591612) is a versatile, air-operated double diaphragm pump designed for marine and industrial applications. Constructed with a corrosion-resistant polypropylene housing and PTFE diaphragms, it handles aggressive, viscous, and solids-laden fluids up to 2.5 mm diameter. Its self-priming capability (up to 5 m) and dry-run safe operation make it ideal for transfer, filtration, and waste handling.

This pump operates on compressed air (1–7 bar) with a maximum flow of 100 L/min and discharge pressure of 6.9 bar. The 1-inch BSPT ports ensure compatibility with standard marine piping. No electrical power is required, making it safe for flammable or explosive environments. Easy maintenance and robust construction ensure long service life.

Key Features

Technical Specifications

ParameterValue
Max Flow100 L/min (26.4 GPM)
Max Discharge Pressure6.9 bar (100 psi)
Suction Lift (dry)5 m (16.4 ft)
Max Particle Size2.5 mm (0.1 in)
Air Consumption600 L/min at 6.9 bar
Air Pressure Range1–7 bar (14.5–101.5 psi)
Inlet/Outlet Ports1 inch BSPT (25 mm)
Dimensions (L×W×H)236 × 240 × 470 mm
Wetted MaterialsPolypropylene, PTFE, Stainless Steel
WeightApprox. 8 kg (17.6 lbs)

Frequently Asked Questions

What is the maximum flow rate of this pump?

The maximum flow rate is 100 liters per minute (26.4 GPM) under optimal air pressure.

Can this pump run dry without damage?

Yes, it can run dry safely due to the PTFE diaphragm design. However, prolonged dry running is not recommended.

What materials are wetted parts made of?

Wetted components include polypropylene body, PTFE diaphragms and ball valves, and a stainless steel shaft. These materials offer excellent chemical resistance.

Is this pump suitable for flammable liquids?

Yes, because it is air-operated with no electrical components, making it safe for use in flammable or explosive environments.

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