pressure regulator

In by Mark Goodman

A device placed in a gas line for reducing, controlling and maintaining the pressure downstream of the device.

pressure regulator (Wikipedia)
Oxygen and MAPP gas cylinders with two-stage pressure regulators

A pressure regulator is a control valve that reduces the input pressure of a fluid to a desired value at its output. Regulators are used for gases and liquids, and can be an integral device with an output pressure setting, a restrictor and a sensor all in the one body, or consist of a separate pressure sensor, controller and flow valve.

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