What is an OPSO (SAV) and how does it work?

Approximate reading time: 1 minute

An OPSO or SAV is a safety device for LPG pressure regulators. It prevents impermissible high overpresssure.

The OverPressure Shut Off (OPSO), former name: safety shut-off valve (SAV), is usually integrated in the fitting. It protects connected consumer equipment from inadmissible high pressure. If the outlet pressure exceeds the maximum, the OPSO responds and blocks the gas supply.

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A diaphragm in combination with a spring monitor the outlet pressure of the fitting. If the maximum permissible value is exceeded, a bolt releases the spindle (see video). The gas flow is blocked.

Overview thanks to visual indicator

You can see whether the safety device has responded by the visual indicator. In normal mode, it is set to green. If the OPSO responds, it switches to red.

You can find more information on the GOK website.

Information regarding technical systems

This blog will never ask members of the public or unqualified persons to make changes to or fiddle around with technical systems themselves.

In accordance with the Industrial Safety Regulation (BetrSichV), a qualified person must take care of a system which requires monitoring.

A qualified person is someone who has the specific specialist knowledge required. This knowledge is gained by way of a professional apprenticeship, corresponding professional experience or current occupational activity.

Please note that the texts are based on information, regulations and standards for Germany. Please always check the rules and regulations in the relevant country of destination and consult specialists if necessary.

What is an OPSO (SAV) and how does it work?

Overview thanks to visual indicator

Regler- und Armaturen-Gesellschaft mbH & Co. KG

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