pressure-relief valve

pressure-relief valve

[′presh·ər ri‚lēf ‚valv]
(mechanical engineering)
A valve which relieves pressure beyond a specified limit and recloses upon return to normal operating conditions.
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First, test the pressure-relief valve located on the top or side of the water heater (Photo 1).
Place a bucket below the discharge pipe and gently lift the lever on the pressure-relief valve to test it.
Extend the life of your water heater
Matching rupture disc assemblies, also with 400 psig pressure settings, are available to indicate which pressure-relief valve has discharged.
Hansen Pressure-Relief Valves With 400 psig Pressure Settings
Hansen's H5600A pressure-relief valves, 1/2" x 3/4" are now available with
Equipment Update
We offer an extensive line of components for industrial refrigeration systems including sealed motor valves, control valves, shut-off valves, pressure-relief valves, refrigerant pumps, air purgers, defrost controls, and liquid level controls.
Now available: Hansen pressure switches. (Equipment Update)
Hansen Technologies offers an extensive line of components for industrial refrigeration systems including control valves, shut-off valves, pressure-relief valves, refrigerant pumps, air purgers, defrost controls, liquid level controls, and sealed motor valves.
Hansen office in Singapore: new location and manager. (Warehousing World)
The same paradoxical behavior occurs in a hydraulic system in which appropriate lengths of tubing and pressure-relief valves replace strings and strings.
Strings and springs net mechanical surprise
Hansen Technologies sets the standard for engineering excellence with its new reduced capacity pressure-relief valves.
Hansen Technologies Corporation offers an extensive line of components for industrial refrigeration systems including control valves, shutoff valves, pressure-relief valves, refrigerant pumps, air purgers, defrost controls, and liquid level controls.
Now availabe: Hansen reduced capacity relief valves. (Equipment Update)
Hansen's high-capacity ammonia pressure-relief valves feature an installation date tag.
Equipment Update

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