Section 296-307-48029 - Manifolding portable outlet headers(1) Portable outlet headers must not be used indoors except for temporary service where the conditions preclude a direct supply from outlets located on the service piping system.(2) Each outlet on the service piping from which oxygen or fuel-gas is withdrawn to supply a portable outlet header must have a readily accessible shut-off valve.(3) Hose and hose connections used for connecting the portable outlet header to the service piping must meet the requirements of WAC 296-307-48051. (4) Master shut-off valves for both oxygen and fuel-gas must be provided at the entry end of the portable outlet header.(5) Portable outlet headers for fuel-gas service must have an approved hydraulic back-pressure valve installed at the inlet and preceding the service outlets, unless an approved pressure-reducing regulator, an approved backflow check valve, or an approved hydraulic back-pressure valve is installed at each outlet. Outlets provided on headers for oxygen service may be fitted for use with pressure-reducing regulators or for direct hose connection.(6) Each service outlet on portable outlet headers must have a valve assembly that includes a detachable outlet seal cap, chained or otherwise attached to the body of the valve.(7) Materials and fabrication procedures for portable outlet headers must comply with WAC 296-307-48033, 296-307-48035, and 296-307-48041. (8) Portable outlet headers must have frames that will support the equipment securely in the correct operating position and protect them from damage during handling and operation.Wash. Admin. Code § 296-307-48029
Amended by WSR 20-21-091, Filed 10/20/2020, effective 11/20/2020Statutory Authority: RCW 49.17.040. 98-24-096, § 296-307-48029, filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-48029, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040, [49.17.]050 and [49.17.]060. 96-22-048, § 296-306A-48029, filed 10/31/96, effective 12/1/96.