Spirax Sarco US Safety Valves protect your steam system against overpressure & maintain a safer environment & improve operational energy efficiency

Choose from our selection of steam relief valves, including fast-acting pressure-relief valves, pressure-relief valves, and more. In stock and ready to ship.

Relief valves are designed to open at a preset pressure (or temperature) level and relieve the system when it has exceeded the desired level. The valve's relief of elevated liquid, gas, or steam pressures prevents damage to the system. We offer a wide selection of …

Safety valve - A pressure relief valve actuated by inlet static pressure and characterised by rapid opening or pop action. Safety valves are primarily used with compressible gases and in particular for steam and air services.

Steam pressure-relief valves open automatically when steam pressure in a system builds up or exceeds a preset limit. Also called safety valves, they open to release steam away from equipment and when the pressure inside the system returns to the normal preset limit, the valve closes. These valves protect pressure vessels, boilers, and steam piping systems and prevent system failure, damage, or ...

Steam pressure-relief valves comply with ASME Section IV codes, which certifies they are designed and constructed to meet minimum industrial safety standards. These valves pair with low-pressure steam boilers and hot-water boilers to control pressure.

The use of power-actuated pressure relief valves can be used in some circumstances for a forced-flow steam generator. no other types of pressure relief valves or non-closing devices such as rupture disks can be used for this section of the code.

Pressure Relief Valves are quick-opening, quick-closing valves used to protect equipment from gas pressure build up or pressure surges. Standard applications involve steam, gases, or liquids where a tight seating valve is required to prevent overpressure. Typical applications are in process industries, pressure reducing stations, and turbine bleeder lines. These valves can …

Safety Relief Valve Components and Basic Operation Basic components of spring-loaded “conventional” SRVs include a vertical steam inlet, a horizontal discharge, and an inner valve disc held closed by a spring housed in a bonnet. Steam escapes through the discharge when the valve disc is lifted off its seat by steam entering the valve inlet above a …

1992年2月24日 · Introduction The function of a pressure relief valve is to protect pressure vessels, piping systems, and other equipment from pressures exceeding their design pressure by more that a fixed predetermined amount. The permissible amount of overpressure is covered by various codes and is a function of the type of equipment and the …