Spirax-Sarco 54663 Main Valve R-22 it is compatible with an

it is compatible with an optional T115 room override thermostat to allow space temperature control to influence the discharge air setpoint

making it an ideal choice for direct retrofit or new installations

Terminal Configuration: Features heavy-duty screw terminals for secure low-voltage wiring connections

as a complete inducer motor assembly

Common Questions: Can this be used with liquids

Spirax-Sarco 54663 Main Valve R-22 it is compatible with anThe Spirax Sarco 54663 is a 4 inch ANSI 125 flanged main valve engineered for precision in high capacity steam distribution systems. As a core component of the 25 Series, this pilot operated pressure reducing valve (PRV) utilizes a self actuated design, leveraging downstream pressure feedback via an external sensing line to modulate flow. This cast iron unit is built for heavy duty service, featuring stainless steel internals and a fatigue tested