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Designed by Watts, the model F556016 LF40XL-5 Temperature and Pressure Relief Valve ensures efficient protection for domestic hot water systems. Combining both temperature and pressure relief mechanisms, it is optimized for commercial water heater use.
The valve automatically re-seats after relief events, offering repeated reliability without the need for manual reset. The MNPT x FNPT connections provide versatility in installation, while the test lever handle ensures functional integrity.
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