... life. The technical characteristics of our(XIECHANG)Pulse Valve: 1. Vacuum treatment for solenoid coil to ... anti-aging properties, we are the only company in China to use high-performance diaphragm so ... reliability. The company which provide us diaphragms also supply diaphragm to GOYEN and ASCO valve, it’s ... ,25,40,50,62,76,80,102mmMaterial of valve body aluminumWorking pressure 0.2---0.6Mpa (29Psi--87Psi ...