Double Acting Air Lock-Up Valve is able to retain pressure at the tool end until restored to normal condition when accident takes place on air operated process control line due to air source or air supply piping line. JRU Control Pvt Ltd manufactures Double Acting Air Lock-Up Valve. JRU Control Pvt Ltd is an ISO 9001:2000 awarded company. JRU Control Pvt Ltd offers various types of filter regulators, volume boosters, Airlock-rely, rot meter, level switch, level transmitter, D.P transmitter etc. In a Double Acting Air Lock-Up Valve the safe signal pressure enters the upper diaphragm chamber 1 and compresses the adjusting spring 3 and moves the upper diaphragm 2 upward. It also closes the exhaust valve 4. Signal pressure also enters the lower diaphragm chamber 5 and exerts a downward force on the valve 8. This opens the flow path from `In` and `Out` ports for flow in either direction.
