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DIN 477:2021

Gas cylinder valves for cylinder test pressures up to 300 bar - Valve inlet and outlet connections

This standard applies to cylinder valves according to DIN EN ISO 10297 for compressed, liquefied and dissolved gases and specifies the requirements for inlet and outlet connections of cylinder valves rated for cylinder test pressures up to and including 300 bar, if not otherwise specified. It specifies further the gauges for the tapered thread W 31,3 × 1/14 (acetylene).

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