燃气调压器 Pressure regulator
（重定向自Pressure regulators）
燃气调压器（英语：Pressure regulator）是一种自动调节燃气出口压力，使其稳定在某一压力范围内的装置。它是燃气管路上的一种特殊阀门，能够将管道上游燃气压力降至一定压力并输出到下游的阀门，也是是一种自力式压力调节阀，即无需外加动力源。燃气调压器只依靠被控流体的能量自行操作并保持被控压力恒定的阀，因此燃气调压器也同时称为燃气调压阀或燃气减压阀。
Pressure regulators
中文百科
英语百科
Pressure regulator 燃气调压器
（重定向自Pressure regulators）
![Oxygen and MAPP gas cylinders with two-stage pressure regulators](/Images/godic/202502/04/Compressed_gas_cylinders.mapp_and_oxygen.triddle3225.jpg")
![Single-stage pressure regulator](/Images/godic/202502/04/Single-stage-regulator.svg3226.png")
![Two-stage pressure regulator](/Images/godic/202502/04/Two-stage-regulator.svg3226.png")
![Serpentins de détente d'une montgolfière](/Images/godic/202502/04/Flamme_montgolfière3226.jpg")
A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Regulators are used to allow high-pressure fluid supply lines or tanks to be reduced to safe and/or usable pressures for various applications.
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