the SPDT contact action (Single Pole Double Throw) offers flexible wiring configurations for either opening or closing circuits upon pressure rise or fall

This SPST high limit switch utilizes a negative-biased power element diaphragm for fail-safe operation

long-term service in the airflow stream

this motor delivers efficient heat dissipation across the coil while maintaining a CWLE shaft rotation

and Coleman furnaces and boilers

Watts 0121547 Relief Valve R-410A the SPDT contact action (SingleFor high capacity commercial and residential hydronic heating systems, the Watts 0121547 (Series LF174A 125) serves as a critical safety component to manage thermal expansion. This 1. 5 inch lead free relief valve is specifically engineered for hot water heating boilers and domestic supply systems, featuring a bronze body construction that meets stringent lead free requirements. With a preset relief threshold of 125 PSI, this valve provides an