The internal SPDT snap-action switch is rated for 10 Amps at 125

As long as the system uses non-corrosive refrigerants and operates within the 175-275 PSIG range

018" insert orifice for optimized fuel-to-air ratios in natural gas systems

Engineered for high-sensitivity millivolt response to ensure rapid safety shut-off upon pilot failure

open-air-over (OAO) design ensures reliable operation in high-ambient exhaust environments

Siemens Building Technology 257-02044 Valve Assembly R-22 The internal SPDT snap-action switchThe Siemens Building Technology 257 02044 Valve Assembly is a contractor grade solution for precise fluid control in commercial HVACR systems. Utilizing the Powermite 599 MT Series architecture, this 2 way normally open valve is engineered for high performance regulation of hot or chilled water in terminal units like convectors and fin tube radiators. The assembly features a 3 4" NPT forged brass body and internal brass trim, ensuring long term