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Subchapter 7. General Industry Safety Orders
Group 10. Gas Systems for Welding and Cutting
Article 86. Manifolding of Cylinders to Headers for Shop Pipe Line Supply Systems and Pressure Reducing Regulators and Hose

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§4840. Compressor or Booster Pumps--Fuel Gas and Acetylene-Oxygen Systems.

(a) Compressor or booster pumps shall be provided with pressure relief valves which will relieve pressure exceeding 15 p.s.i.g. to a safe outdoor location as provided in Section 4811 or by returning the gas to the inlet side or to the gas supply source.

(b) Compressor or booster pump discharge outlets shall be provided with approved protective equipment. (See Section 4828.)

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


1. New section filed 5-16-75; effective thirtieth day thereafter (Register 75, No. 20).

2. Amendment of NOTE filed 6-12-87; operative 7-12-87 (Register 87, No. 26).

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