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Subchapter 15. Petroleum Safety Orders--Refining, Transportation and Handling
Article 21. Gas Compressors and Engines
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§6873. Gas Compressors.

(a) Where a compressor can exceed the maximum allowable working pressure of the system, a pressure relief device shall be provided. If valves are installed under the pressure relief device for maintenance or inspection, alternate means of providing protection to the system shall be employed when the valve is in the closed position.

(b) Where liquid may be present in the incoming gas to compressors, a means shall be provided and a device installed to give either audible warning or shut down the compressors in case the liquid exceeds a predetermined level.

(c) Gas lines which enter plants and which are connected to compressor intakes shall be provided with shut-off valves installed in a safe location, and shall be so identified.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Repealer and new subsection (a), repealer of subsection (b), subsection redesignation, amendment of subsections (b)-(c), repealer of subsection (e) and new NOTE filed 9-6-94; operative 10-6-94 (Register 94, No. 36).

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