§ 56.13021 - High-pressure hose connections.  


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  • § 56.13021 High-pressure hose connections.

    Except where automatic shutoff valves are used, safety chains or other suitable locking devices shall be used at connections to machines of high-pressure hose lines of 34-inch inside diameter or larger, and between high-pressure hose lines of 34-inch inside diameter or larger, where a connection failure would create a hazard.