Used Wilden M15 Pneumatic Double Diaphragm Pump. Unit operates by applying compressed air directly to liquid column separated by elastomer diaphragms. The volume is controlled by inlet air. A bypass ...

Used- Wilden M15 Pneumatic Double Diaphragm Pump. Unit operates by applying compressed air directly to liquid column separated by elastomer diaphragms. The volume is controlled by inlet air. A bypass valve is not required. Pump stops when discharge pressure equals air inlet pressure. Other features include a Graco 22-1/2" diameter ramplate with double wipers for use on 55 gallon drums and 4" diameter x 8' long steel reinforced discharge hose.