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2. Boiler blowdown - Wikipedia

   en.wikipedia.org/wiki/Boiler_blowdown

   A pipe near the bottom of the blowoff tank maintains a water level below the blowdown entry point and allows cooler water remaining from earlier blowdown events to drain from the tank first. Two bottom blowdown valves are often used in series to minimize erosion. One valve serves as the sealing valve, and the other as the blowdown valve.

3. Ojiro Fumoto - Wikipedia

   en.wikipedia.org/wiki/Ojiro_Fumoto

   Ojiro Fumoto, also known by his pseudonym Moppin, is a Japanese indie game developer. He is best known for developing the games Downwell and Poinpy , as well as his contributions to UFO 50 . Career

4. Crankcase ventilation system - Wikipedia

   en.wikipedia.org/wiki/Crankcase_ventilation_system

   PCV valve on Ford Taunus V4 engine (feeding from left side valve cover into the inlet manifold) A crankcase ventilation system (CVS) removes unwanted gases from the crankcase of an internal combustion engine. The system usually consists of a tube, a one-way valve and a vacuum source (such as the inlet manifold).

5. Completion (oil and gas wells) - Wikipedia

   en.wikipedia.org/wiki/Completion_(oil_and_gas_wells)

   The valve will operate if the umbilical HP line is cut or the wellhead/tree is destroyed. This valve allows fluids to pass up or be pumped down the production tubing. When closed the DHSV forms a barrier in the direction of hydrocarbon flow, but fluids can still be pumped down for well kill operations.

6. Poppet valve - Wikipedia

   en.wikipedia.org/wiki/Poppet_valve

   The word poppet shares etymology with "puppet": it is from the Middle English popet ("youth" or "doll"), from Middle French poupette, which is a diminutive of poupée.The use of the word poppet to describe a valve comes from the same word applied to marionettes, which, like the poppet valve, move bodily in response to remote motion transmitted linearly.

7. Shutdown valve - Wikipedia

   en.wikipedia.org/wiki/Shutdown_valve

   A blowdown valve (BDV) is a type of shutdown valve designed to depressurize a pressure vessel by directing vapour to a flare, vent or blowdown stack in an emergency. BDVs fail-safe to the open position upon failure of the control system. [1] The type of valve, type of actuation and performance measurement are similar to an ESD valve.