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2. Relief valve - Wikipedia

   en.wikipedia.org/wiki/Relief_valve

   A relief valve DN25 on cooling water pipe from heat exchanger Schematic diagram of a conventional spring-loaded pressure relief valve. A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise build up and create a process upset, instrument or equipment failure, explosion, or fire.

3. Pilot-operated relief valve - Wikipedia

   en.wikipedia.org/wiki/Pilot-operated_relief_valve

   PORV are also called pilot-operated safety valve (POSV), pilot-operated pressure relief valve (POPRV), or pilot-operated safety relief valve (POSRV), depending on the manufacturer and the application. Technically POPRV is the most generic term, but PORV is often used generically (as in this article) even though it should refer to valves in ...

4. Mueller Co. - Wikipedia

   en.wikipedia.org/wiki/Mueller_Co.

   Mueller Co. is a Chattanooga, Tennessee based industrial manufacturing group that manufactures fire hydrants, gate valves, and other water distribution products.Mueller Co. which moved to Chattanooga from Decatur, Illinois in 2010, is the largest supplier of potable water distribution products in North America. [2]

5. Safety valve - Wikipedia

   en.wikipedia.org/wiki/Safety_valve

   An oxygen safety relief valve DN250-safety valves. A safety valve is a valve that acts as a fail-safe.An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits.

6. High-integrity pressure protection system - Wikipedia

   en.wikipedia.org/wiki/High-integrity_pressure...

   A high-integrity pressure protection system (HIPPS) is a type of safety instrumented system (SIS) designed to prevent over-pressurization of a plant, such as a chemical plant or oil refinery. The HIPPS will shut off the source of the high pressure before the design pressure of the system is exceeded, thus preventing loss of containment through ...

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