In steam boiler applications, pressure relief valves (PRVs) are the silent sentinels — the last line of defense against potentially disastrous overpressure situations. In a perfect world, boiler ...

After writing a blog post about leaking temperature and pressure relief (TPR) valves at water heaters, I learned that this particular issue seems to completely befuddle folks. In the two years ...

Relief valves do the same job as safety valves, but they also smoothly and continuously modulate flow to keep pressure from exceeding a preset level. A relief valve is normally closed until the ...

High-pressure steam boilers were blowing up all across the land and a big reason for that had to do with the relief valves of the time. These were longish levers with a pivot point on the boiler end, ...

Authors: Roger D. Danzy is vice president of Technology & Product Development and Niki Thomas is product manager for Dresser Consolidated, an international leader in pressure relief valves and ...

Relief valves are code-certified by the National Board of Boiler and Pressure Vessel Inspectors. Code certification involves conducting flow tests under conditions specified in the ASME code.

Pressure Relief Valves, Models 6500 and 6600, are designed for refrigeration systems. The 6500 Series valves are targeted toward systems operating with new refrigerant blends. These 360 brass alloy ...

All DOT-111 tank cars ordered since October 2011, and built to transport crude oil, adhere to tougher CPC-1232 AAR Tank Car Committee standards. They are equipped with a thicker, more ...

Certain pressure relief valves for use on compressed natural gas fuel tanks are being recalled by Circor, which does business as Circle Seal Controls. The affected valves have O-rings that could ...

The term dump valve, however, is also often used when discussing other different types of pressure relief systems - including recirculating bypass valves, which are typically used in factory ...