... , FPM, which all confirm to standard of FDA. Connection: Weld, clamp, thread, single weld single thread, flange Handle: 2-position handle ... has three standard types, namely normally closed (NC), normally open (NO) and air/air activated (A/A). The actuator push piston ... THE PROCESS CHART The more product model for your selection: Clamp Stainless Steel Butterfly Valve