Self Actuated Pressure reducing Valve

Pressure reducing valve is a direct acting regulator which regulate the downstream pressure to the adjusted point and the valve closes when the downstream pressure rises. Suitable for Water, steam, and gas up to temperature 350°c with condensate pot.

Principle of operation: 
Media flows through the upstream side of the valve. The Plug with the stem is connected to the actuator stem. The Downstream pressure is applied through the control line to the actuator diaphragm where it is converted into spring force. With the set point adjuster, we can adjust spring pretension to the required downstream pressure.

When the downstream pressure increases above the set-point adjusted pressure, the valve closes proportionally to the change in pressure.

The balancing valve has balancing bellow where the upstream pressure act on the outer surface of bellow and downstream pressure act on the inside surface of the bellow. As an effective area of balancing bellow is equal to the seat area the differential forces compensated so there is no effect of any changes in fluctuations in upstream pressure.

Valve sizes DN25 to DN80, class rating 150, and 300.