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2. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   Regulator: used in SCUBA diving equipment and in gas cooking equipment to reduce the high pressure gas supply to a lower working pressure; Rocker valve; Rotary valves and piston valves: parts of brass instruments used to change their pitch; Rotolock valve; Rupture disc: a one-time-use replaceable valve for rapid pressure relief, used to protect ...

3. Pressure regulator - Wikipedia

   en.wikipedia.org/wiki/Pressure_regulator

   They differ from pressure reducing regulators in that the pressure reducing regulator controls downstream pressure and is insensitive to upstream pressure. [2] It is a normally-closed valve which may be installed in parallel with sensitive equipment or after the sensitive equipment to provide an obstruction to flow and thereby maintain upstream ...

4. Flow control valve - Wikipedia

   en.wikipedia.org/wiki/Flow_control_valve

   These types of valves are also known as automatic control valves. The hydraulic actuators respond to changes of pressure or flow and will open/close the valve. Automatic control valves do not require an external power source, meaning that the fluid pressure is enough to open and close them.

5. Valve - Wikipedia

   en.wikipedia.org/wiki/Valve

   Pressure regulators are variations of valves in which flow is controlled to produce a certain downstream pressure, if possible. They are often used to control flow of gas from a gas cylinder. A back-pressure regulator is a variation of a valve in which flow is controlled to maintain a certain upstream pressure, if possible.

6. Regulator (automatic control) - Wikipedia

   en.wikipedia.org/wiki/Regulator_(automatic_control)

   Examples are a voltage regulator (which can be a transformer whose voltage ratio of transformation can be adjusted, or an electronic circuit that produces a defined voltage), a pressure regulator, such as a diving regulator, which maintains its output at a fixed pressure lower than its input, and a fuel regulator (which controls the supply of ...

7. Talk:Pressure regulator - Wikipedia

   en.wikipedia.org/wiki/Talk:Pressure_regulator

   Opening definition "A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure." is wrong! (that describes a check-valve). It does nothing of the sort. Pressure regulators do not control flow. They simply control the supply pressure to a downstream process from an upstream higher pressure source.