Pneumatic butterfly valves conbined a piston within a cylinder and our various connecting butterfly valves. They are not only developed to single effect ( air/ spring ) but also double action ( air/ air ) in case of the actuator euqip with professional control box which is designed with various options such as proximity type, micro swith type and electrovalve 1 up to 3 pcs by requested. Each per ploybag, 100pcs per carton box, then into plywood box
