The Super' Series 7IP I I Gas Pressure Reducing & Shut-off valve is a diaphragm type gas pressure-regulating valve designed for use on chlorine Sulfur Diaoxide or Amonia gas service. The valve is used in a gas dispensing system to prevent liquefaction of the gas by providing a controlled pressure drop in the piping system. Downstream pressure is regulated to a reduced value by adjustment of the control setting. If the downstream pressure exceeds the pressure at which the valve is set, the gas flow will be shut off.
There are three models for use with a variety of control applications:
71 PI 101 L Manual, 71P1 102L Pneumatic, 7IP 1103 L Electric
All models are constructed with materials resistant to corrosion from gases being controlled. Valves use a self-centering half-ball stem with a soft Teflon seat for positive shut-off.
The control setting for the manual and electric valves are made by adjustment of a mechanical adjustment screw that applies spring tension to the loading diaphragm. The pneumatically actuated unit is controlled by pneumatic or hydraulic pressure applied to the diaphragm.
Fail-Safe operation can be accomplished using either the electrically actuated or pneumatic actuated units. Either can be configured to permit valve closure on power failure. (Venting of 3 way solenoid valve for pneumatic unit)