V.P. & Company manufactures Air Lock Relay. V.P. & Company also manufactures equipment and spares required for process industries. Air Lock Relay is a reliable unit for achieving stay-put condition of control valves, on air supply failure, The air pressure is blocked inside the diaphragm chamber [or piston cylinder] of the actuator, when the supply air pressure falls below the desired set value. Quality materials are used and each unit is pressure and leak tested, to ensure long and trouble free operation. It provides smooth action. It is ideal for control valves and power cylinders.
