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The internal relief valve is factory-set to begin relieving at approximately 7-10" W
it utilizes a reliable sleeve bearing design and a band mount setup for reduced vibration transfer during operation
ensuring seamless mechanical fitment and performance parity
Key Benefits Enhanced System Balancing: The manual positive memory feature allows for rapid setpoint recovery
this valve is specifically calibrated for R22 and R407C refrigerants
Watts 0274427 Valve 340155-7026 The internal relief valve isThe Watts Series 174A (Ordering Code 0274427) is a high capacity boiler pressure relief valve designed specifically for hot water heating boilers and water supply heaters. This 3 4 inch NPT female inlet outlet valve is engineered with a bronze body and a non metallic disc to metal seat, ensuring consistent performance in high temperature hydronic systems. With a factory set 35 PSI pressure relief and a high steam discharge capacity of 725,000 BTU Hr,
