... 40m3/h; 3.Driven by air 4.Pump body:Cast rion,pp,ss,aluminum DPQ air operated ... diaphragm pump:* DPQ air operated diaphragm pump are operated with compressed air. ... corrosive or toxic, as well as colloids. The pump body is made of aluminum alloys, cast iron or stainless ... 10mm 6. Max air pressure: 2-7kgf/cm27. Pump body Material: Cast iron, SS,aluminium alloy,PP,PTFE,etc8 ...