◎CSE Pneumatic Butterfly Valves conbine pistons within cylinders and CSE's various connected butterfly valves and they are developed to single effect ( air/ spring ) and double action ( air/ air ) in case of the actuator euqip with CSE's professional control box which is designed with various options such as proximity, micro swith and electrovalve 1 up to 3 pcs. ◎CSE 3A,DIN,SMS,RJT,IDF Butterfly valve body could be offered with Clamp end, Weld end, Male end, female end. The different handle of 4 position, 12 position and other style that you inquired or actuator for your widely used. INCH Butterfly valve body and disk are all made from full CNC machined, high polished that demanded with the high quality in the developed country around the world. EPDM, Silicon, Viton and PTFE seats are available, making our Butterfly valve suitable for many applications in such as food, dairy, beverage, meat processing, chemical, and many other industries. ◎The Divert Valves can be working automatically by air in case of the valves are equipped with CSE's control boxes which are designed for signal transfer or individually valve working control. ◎A Piston Valve is a device used to control the motion of fluid in tube according to linear motion of a piston within a cylinder. ◎