PDS-220A-06 pg.2 GENERAL DESCRIPTION EdsonAir Powered Diaphragm Pumps are ideal for collection and transfer of liquid waste, dewatering, slurry, and filter applications. An externally mounted reciprocating air cylinder powers the single diaphragm at low air consumption rates. Open flow-through flapper valves and accurate, variable speed ceramic 4-way valve make these pumps ideal for applications involving liquids with abrasive solids and high viscosities.All models are portable for use in field applications with portable compressors. Order Nos.220ACA-150 and 220ACB-150 are the Edson air powered,...