This International Standard specifies requirements and test methods for pressure regulators in manifold systems for welding, cutting and allied processes.
This International Standard is applicable to pressure regulators normally used for compressed gases up to 300 bar (30 MPa), for dissolved acetylene, methylacetylene-propadiene-mixtures (MPS) and carbondioxide (CO2), to regulate the pressure at the outlet of high-pressure lines from manifold gas cylinders.
It is not applicable to pressure regulators fitted directly to the gas cylinders, as defined in ISO 2503 or to pressure regulators for liquefied petroleum gases.
ISO 7291:1999 history
2015ISO 7291:2010/Amd 1:2015 Gas welding equipment - Pressure regulators for manifold systems used in welding, cutting and allied processes up to 30 MPa (300 bar); Amendment 1
2010ISO 7291:2010 Gas welding equipment - Pressure regulators for manifold systems used in welding, cutting and allied processes up to 30 MPa (300 bar)
1999ISO 7291:1999 Gas welding equipment - Pressure regulators for manifold systems used in welding, cutting and allied processes up to 300 bar
1990ISO 7291:1990 Welding, cutting and allied processes — Manifold regulators