Pneumatic Actuated Diaphragm Valve Manufacturer in USA: A pneumatic actuated diaphragm valve is one of the control valves whose operation control is through compressed air and, in this case, uses a flexible diaphragm to work in the control fluid movement. Description: 1. Available Materials: Cast Iron, Ductile Iron, Alloy 20, WCB, WC6, WCC, LCB, LCC , SS304, SS316, CF8, CF8M 2. Class: 150 to 600 3. Nominal Pressure: PN10 to PN100 4. Size: 1” to 48” 5. Ends: Flanged, Threaded 6. Operation: Pneumatic actuated