product manual:

  ZSQ402 / 3 pneumatic piston cut-off valve is one of the automatic components in the industrial production process. It belongs to the category of pneumatic actuators, which cuts off or switches the direction of medium flow according to the signal of the regulating instrument. It features small volume, light weight, reliable sealing, and is widely used in automatic control and remote control systems for various work and production processes that have no pressure adjustment requirements, only as a switch and switching action, and do not allow leakage during switching. 2. Main technical parameters Nominal pressure 2.5 \ 4.0 Working temperature ℃ -20 ～ 220 Signal pressure Mpa ≥0.35 (350kpa) Applicable medium Water, steam, oil, gas, etc