ARO Diaphragm Pump Metallic 1/2 inch Model PD05R-AAS-PAA-B

The Aro (Ingersoll Rand) metallic PD05R-AAS-PAA-B is a self-priming air operated double diaphragm pump (AODD pump) designed for general fluid transfer. The pump can be used with a wide range of fluids, from light viscosity to medium viscosity, and can pump large particles of up to 3/32″ dia. [2.4 mm] without damage.

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Technical Specifications

Pump Type: Air Operated (Double Diaphragm – AODD)
Wetted Parts: Aluminum
Fluid Inlet & Outlet: 1/2 inch (female)
Flow Rate (max.): 12.0 gpm [45.4 lpm]
Diaphragm Material: Santoprene
Particle Size (max.): 3/32 inch dia. [2.4 mm]
Pump Ratio: 1:1
Air Inlet (female): 1/4″ (female)
Air Inlet Pressure Range: 10-100 psi [0.69-6.9 bar]
Material Inlet Pressure (max.): 10 psi [0.69 bar]
Fluid Outlet Pressure Range: 10-100 psi [0.69-6.9 bar]
Operating Temperature (max.): 150°F [66°C]
Weight: 8.04 lbs [3.65 kg]
Center Section Material: PP (polypropylene)
Fluid Cap & Manifold Material: Aluminium
Hardware Material: Stainless steel
Seat Material: PP (polypropylene)
Ball Material: Santoprene
Diaphragm Material: Santoprene
Manifold Connection: Multiport
Agency Compliance: CE, REACH, RoHS


The ARO Ingersoll Rand PD05R-AAS-PAA-B is a 1:1 ratio metal diaphragm pump that uses compressed air for operation. Wetted parts such as fluid caps and manifolds are made of aluminum and hardware is stainless steel.
This cost-effective pump is suitable for a wide range of fluids, including those with high solids content and particle sizes up to 3/32 in. [2.4 mm].


Paints, adhesives, inks, solvents, lubricants, oils, chemical agents, waste water and sewage

Service Kits

Air Section Service Kit: 637428
Fluid Section Service Kit: 637427-XX

Service Manual

ARO Diaphragm Pump Metallic 1/2 inch manual (*.pdf, source: Ingersoll Rand)

Additional information