300 x slowly-closing check pneumatic valve is introduced

product use X slowly-closing check pneumatic valve to control opening and closing speed check pneumatic valve, the water pump to start or stop running, can adjust to cooperate with the best opening or closing speed. Can be used in the high-rise building, reduce the water hammer phenomenon, in order to achieve safe and quiet open-close effect. X slowly-closing check pneumatic valve product reference standard pressure rating: PN, PN and PN diaphragm: DN ~ piston: DN ~