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While it is an SPST open on pressure drop switch
utilizing genuine Carrier parts ensures that the electrical specifications perfectly match the system's design requirements
Can the diaphragm be replaced in the field
The internal circuitry is self-powered by the induced current from the monitored line
especially in open loops or systems with high oxygen content
Watts 0274513 Relief Valve Freon While it is an SPSTThe Watts 0274513 is a heavy duty ASME Section IV certified boiler pressure relief valve designed specifically for hot water heating systems and domestic supply boilers. This Watts 174A 3 4 50 model features a 3 4 inch FNPT inlet and outlet with a fixed pressure set point of 50 PSI. Built with a rugged bronze body and a stainless steel spring, it delivers a high discharge capacity of 950,000 BTU hr to prevent catastrophic equipment failure during
US$ 59.99
US$ 34.99
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US$ 58.00