enow.com Web Search

  1. Ads

    related to: pilot operated pressure reducing valve for water

Search results

  1. Results from the WOW.Com Content Network
  2. Pilot-operated relief valve - Wikipedia

    en.wikipedia.org/wiki/Pilot-operated_relief_valve

    The pressure at which the control pilot relieves is the functional set pressure of the PORV. When the pilot valve reaches set pressure it opens and releases the pressure from the dome. The piston is then free to open and the main valve exhausts the system fluid. The control pilot opens either to the main valve exhaust pipe or to atmosphere ...

  3. Pilot valve - Wikipedia

    en.wikipedia.org/wiki/Pilot_valve

    Pilot valves are useful because they allow a small and easily operated feed to control a much higher pressure or higher flow feed, which would otherwise require a much larger force to operate; indeed, this is even useful when a solenoid is used to operate the valve. Pilot valves are often used in critical applications (e.g., emergency and SIS ...

  4. Surge control - Wikipedia

    en.wikipedia.org/wiki/Surge_control

    The valve is controlled by an external, normally closed pilot valve. The pilot will be set to the desired set point of the system, with a sense line that runs up stream of the valve. When the upstream process conditions start to exceed the pilot set point, the valve begins to open and relieve the excess pressure until the correct pressure is ...

  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. 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.

  7. Evacuees in Los Angeles recount harrowing escape from ...

    www.aol.com/news/evacuees-los-angeles-recount...

    Farid was staying at the Westwood Recreation Center's gym, a temporary shelter where community members dropped off blankets, clothing, water, pizza and pet supplies for residents who fled the ...

  1. Ads

    related to: pilot operated pressure reducing valve for water