48 Nema Frame Size

This specific model is calibrated for 3

The mechanical spring return system provides reliable 100% fail-safe closure during power loss

or a drop in combustion efficiency

the replacement motor likely needs to be swapped

Siemens Building Technology 599-03187 Valve 340155-7024 48 Nema Frame SizeThe Siemens 599 03187 is a heavy duty 1 1 2 inch 2 way globe valve engineered for precision flow control in commercial HVACR systems. Built with a rugged UNS CA 844 bronze body and brass trim, this normally closed (NC) valve is designed to handle high demand applications including saturated steam, hot water, and chilled water with anti freeze. Featuring an equal percentage flow characteristic and a 25 Cv capacity, it ensures stable modulating control