AODD Pump Alternative to Plastic Pumps

The C-Series air-operated double-diaphragm (AODD) pump from Almatec, part of PSG, a Dover company, is an alternative to similar plastic pumps and is suited for almost any pumping application that uses an oscillating pump. 

The design enables the housing parts to be jointly tightened via housing bolts; all bolts are tightened together against a diaphragm-sized ring on each side of the pump. Forces of the housing bolts distribute onto the housing parts evenly, providing a consistent flow of forces that increases bolt torque and improves pump safety, as stated by the company. The design also ensures the suction and discharge ports are available as separate housing parts so that different connection versions are available for easy matching to existing installations.

The pumps feature self-priming and dry run capabilities and do not have mechanical seals, drives, nor rotating parts that cause wear over time, the company reports. Available sizes include C 10 (3/8 in.), C 15 (1/2 in.), and C 25 (1 in.) and achieve flow rates from 1.3–7 m³/h at a maximum discharge pressure of 7 bar (100 psig). The wetted housing parts are made of either abrasion-resistant polyethylene or chemically, almost universally resistant polytetrafluoroethylene. The material of the non-wetted center block is polyethylene or polyethylene conductive. 

Almatec