Aro PD01P-HPS-PAA-A 1/4 inch poly air operated diaphragm pump 
20 lpm 
8.6 bar (125 psi)
Self priming (dry) to 4.6 m
Ratio: 1:1
Displacement per cycle: 0.072 litres
Air inlet (female): 1/4 - 18 PTF SAE short
Fluid inlet/outlet ports: 1/4 inch NPT(F) BSP hybrid
Suspended solids to 1.66 mm max
Sound level: 62.3 db(A)
Muffler: integral (included)
Wetted parts: Polypropylene
Hardware: Stainless Steel
Ball seat material: Polypropylene
Ball material: Santoprene
Diaphragm material: Santoprene

Why use Aro air diaphragm pumps?
Sealless design
Low material shear factor
Ease of maintenance
Can run dry forever without damage
Portable
Self priming
Easy-to-install
Quiet
Relatively low purchase cost

About Aro Pumps
Aro is a world-leading brand of Ingersoll Rand.
Aro is Fluid Intelligence and a leading worldwide manufacturer of fluid handling products that are expertly engineered to deliver performance and serviceability, enabling our customers to achieve the best total cost of ownership.
Aro is fluid intelligence—the smart choice in fluid management products for industrial operations. 
Our air-operated diaphragm pumps, piston pumps, filters, regulators, lubricators, lubrication equipment, and pneumatic valves/cylinders are expertly engineered to deliver performance and serviceability. 
That’s why Aro is fluid intelligence, the smart choice in fluid management products for industrial operations. 
With an 85-year legacy of premier product performance and service excellence, Aro provides fluid management equipment for customers and industries around the globe, including chemical, manufacturing, energy, pharmaceutical, mining, and more.
Today Aro Pumps is located here:
Aro Americas
209 N. Main Street
Bryan, Ohio 43506
United States of America