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Its robust design is optimized for high-pressure environments
The bulb is meticulously calibrated to interrupt the circuit if the primary thermostat fails
The externally equalized design ensures precise superheat control
the switch should be mounted with the diaphragm in a vertical plane
Watts 0121549 Valve Els PW 17895 Its robust design is optimizedThe Watts 0121549, also identified by model LF174A 1 1 2 150, is a high capacity boiler pressure relief valve designed for heavy duty commercial and industrial hot water heating applications. This ASME rated relief valve features a lead free copper silicon alloy body and 1. 5 inch NPT threaded female connections, engineered to handle a steam discharge capacity of up to 7,630,000 BTU hr. As a veteran technician knows, the Watts LF174A series is
