ARO PD05R-AAS-SAA-B Compatible 1/2″ Aluminum Air-Operated Diaphragm Pump

This compact, air-operated double-diaphragm pump, featuring a 1/2" NPT connection and an aluminum body, is designed for small-volume industrial transfer lines. With a flow capacity of 45.4 liters per minute and a maximum operating pressure of 6.9 bar, it is used in workshop, maintenance, and dosing applications. The Santoprene diaphragm ensures flexible operation, while the PTFE ball and stainless steel check valve seat provide the valve assembly with greater chemical resistance and wear resistance — this hybrid configuration offers a balanced option between service life and chemical compatibility compared to single-material sets. It operates with a maximum temperature limit of 93.3 °C and a solid particle passage of 2.4 mm. Its self-priming capability of 3 meters in dry conditions and 4.6 meters in wet conditions allows for commissioning without the need for under-tank installation. The body dimensions are 298 × 209 × 206 mm, making it suitable for tight installation spaces.