Boiler Safety Valve Setting Regulations

BOILER'S SAFETY VALVE REGULATION - Blogger

· SAFETY VALVES - SIZE RESTRICTIONS - For auxiliary boilers and exhaust the

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46 CFR § 5201-120 - Safety valves and safety relief

Safety valves 38mm (1 1/2 in) to 114mm (4 1/2 in) may be used for replacements on existing boilers The for auxiliary must be (3/4) and 102mm (4 in) NPS The of a the nominal diameter (as defined in 5607-5 (b)) of the inlet opening

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46 CFR § 5415-10 - Safety and relief valves (modifies UG

Seats or disks of cast iron are prohibited (g) The spring in a relief valve in service for pressures up to and includingch shall pressure or 10 percent below that for which the relief valve is marked For higher pressures the spring shall not be reset for any pressure more than 5 percent above or 5 percent below that for which the relief

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PRESSURE SETTING OF SAFETY VALVES | Marine Inbox

· PROCEDURE FOR SETTING SAFETY VALVE Use gagging tool to simultaneous lifting of valves at the caps and the valve spindle on valve gagged set the other valve first the nut screwed downon the valve to be set till the previous marks Raise steam slowly and bring to set pressure

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