African valve is the top Pneumatic Valve Supplier in Guinea Description: Available materials options we supply: WCB, WC6, WCC, LCB, LCC, Cast iron, Ductile Iron, SS316, SS304 -Size: 2" to 80" -Class: 150 to 300 -Nominal Pressure: PN6 to PN40 -Operation: Pneumatic Actuated -Ends: Wafer, Lug, Flanged | Configuration of a Pneumatic Actuator: -4-20 Mamp -Pneumatic single acti... https://www.africanvalve.com/product-category/pneumatic-actuated-valves/