Pressure Reducing Valves
Pressure Reducing Valve - Steam
By Darling Muesco
Self-acting, pilot and piston operated steam pressure reducing valve using a spring-balanced stainless diaphragm with external sense line for accurate outlet pressure.
Specifications
- Size range
- 15 NB – 200 NB
- Fluid supported
- Steam
- Operating principle
- Spring balance, sensed below SS diaphragm
- Actuation
- Self-acting, pilot and piston operated
- Sense line
- External sense line provision available
Overview
A self-acting, pilot and piston operated pressure reducing valve designed for steam pressure reduction across all industrial applications. Operates on the spring balance principle where downstream pressure is sensed below a stainless steel diaphragm and balanced against adjustable spring tension. Includes an external sense line provision for improved outlet pressure accuracy and performance. Supplied, sized and serviced for steam systems across Nepal.
Features & Benefits
- Spring balance operating principle provides inherently stable regulation — increasing spring tension raises outlet pressure and vice versa, giving operators a simple and direct adjustment mechanism without instrumentation.
- Stainless steel diaphragm handles the high temperature and corrosive condensate exposure typical of steam service, where carbon steel diaphragms would corrode and lose sensitivity over time.
- External sense line provision allows downstream pressure to be sensed at a point further from the valve, eliminating velocity pressure effects at the valve outlet and improving set-point accuracy under varying flow conditions.
- Self-acting design requires no external power source or control signal, making this reliable in remote or utility steam lines where instrument air or electrical supply may not be available.
- Pilot and piston operated variants in the same product family allow selection of the correct actuation type for the specific pressure class and turndown requirement without changing the body or piping arrangement.
