ARO 666170-144-C Compatible 1.5″ Aluminum Air-Operated Diaphragm Pump

This is a double-diaphragm transfer pump operated by compressed air. The air valve alternately drives the two diaphragms to transfer the fluid from the suction line to the discharge line; since it has no mechanical seals or electric motor, maintenance requirements are minimal. Thanks to its self-priming design, it remains undamaged even if it runs dry during tank bottom suction and drum emptying applications. Flow rate and pressure are continuously adjustable via the regulator on the air supply line; the pump automatically stops when the discharge line is closed and restarts when the line is opened. This behavior eliminates the need for additional control equipment in intermittent filling and dosing applications. The product is manufactured in dimensions that are directly interchangeable with existing pumps sharing the same configuration code.