... rate:0.8-40m3/h; 3.Driven by air 4.Pump body:Cast rion,pp,ss,aluminum DPQ air operated diaphragm ... or toxic, as well as colloids. The pump body is made of aluminum alloys, cast iron or stainless steel. The diaphragm is ... : 1-10mm 6. Max air pressure: 2-7kgf/cm27. Pump body Material: Cast iron, SS,aluminium alloy,PP,PTFE,etc8. Diphragm material ...