About Pressure Relief Valves, Stainless Steel Pressure Relief Valves, Relief Valves

Pressure Relief Valves are used in residential, commercial, institutional, and industrial applications. The relief valves are used in several applications: fire fighting and humidification systems, etc. The valve is designed for tap water and ultra-pure water, i.e. without additives of any kind to the medium.

Important points of Pressure Relief Valves Manufacturers

The term relief valve is associated with the terms pressure relief valve(PRV), pressure safety valve(PSV) and safety valve:

Pressure relief valve (PRV) or Pressure Release valve (PRV) or pressure safety valve (PSV):

The difference is that PSVs have a manual lever to activate the valve in case of emergency. Most PRVs are spring operated. At lower pressures, some use a diaphragm in place of a spring. The oldest PRV designs use a weight to seal the valve.

Set pressure:

When the system pressure increases to this value, the PRV opens. The accuracy of the set pressure may follow guidelines set by theAmerican Society of Mechanical Engineers(ASME).

Relief valve (RV):

A valve used on a liquid service, which opens proportionally as the increasing pressure overcomes the spring pressure.

Safety valve(SV):

Used in gas service. Most SVs are full lift or snap-acting, in that they pop completely open.

Safety relief valve (SRV):

A relief valve that can be used for gas or liquid service. However, the set pressure will usually only be accurate for one type of fluid at a time.

Pilot-operated relief valve(POSRV, PORV, POPRV):

A device that relieves by remote command from a pilot valve which is connected to the upstream system pressure.

Low-pressure safety valve (LPSV):

An automatic system that relievers by the static pressure of a gas. The relieving pressure is small and near the atmospheric pressure.

Vacuum pressure safety valve (VPSV):

An automatic system that relieves by the static pressure of a gas. The relieving pressure is small, negative, and near the atmospheric pressure.

Low and vacuum pressure safety valve (LVPSV):

An automatic system that relieves by the static pressure of a gas. The relieving pressure is small, negative, or positive, and near the atmospheric pressure.

Pressure vacuum release valve (PVRV):

A combination of vacuum pressure and a relief valve in one housing. Used on storage tanks for liquids to prevent implosion or overpressure.

Snap acting:

The opposite of modulating refers to a valve that “pops” open. It snaps into the full lift in milliseconds. Usually accomplished with a skirt on the disc so that the fluid passing the seat suddenly affects a larger area and creates more lifting force.

Clients Projects for Pressure Relief Valves Supplier in India

Our Pressure Relief Valves are impeccable in quality and that is why are loved widely by our large clientele. Stainless Steel Pressure Relief Valves produced by D Chel Valves are used in various different projects worldwide. We have clients with regular demand for Relief Valves in 5 different countries and we export Pressure Relief Valves Valve to additional 35+ countries.