Relief valve:

Terms Related to Relief valve

• Pressure relief valve

  A valve that opens at a preset pressure to relieve excessive pressures within a vessel or line. Also called a relief valve, safety valve, or ...

• Valve

  A device used to control the rate of flow in a line to open or shut off a line completely, or to serve as an ...

• Safety valve

  1. An automatic valve that opens or closes when an abnormal condition occurs (e.g., a pressure relief valve on a separator that opens if the ...

• Nail pin

  A pin shaped like a carpenter's nail and placed in a pressure relief valve. When the pin shears, it opens the valve to relieve pressure ...

• Back-pressure valve

  1. A valve used to regulate back-pressure on equipment or systems through which a fluid flows. 2. A valve used to regulate automatically a uniform ...

• Check valve

  A valve that permits flow in one direction only. If the gas or liquid starts to reverse, the valve automatically closes, preventing reverse movement. Commonly ...

• Standing valve

  A fixed ball-and-seat valve at the lower end of the working barrel of a sucker rod pump. The standing valve and its cage do not ...