Siemens Building Technology 257-02039 Valve Assembly 319847-401 reducing stress on the overall

reducing stress on the overall system and preventing premature cycling issues in critical cooling cycles

5A circuit breaker acts as a resettable safety

including the ZF

which minimizes slippage and reduces vibration for quieter operation in air handling units and compressors

Universal Compatibility: Rated for 120V

Siemens Building Technology 257-02039 Valve Assembly 319847-401 reducing stress on the overallThe Siemens Building Technology 257 02039 is a professional grade 2 way normally open pneumatic valve assembly from the Powermite 599 Series, engineered specifically for the proportional control of hot or chilled water in terminal units like convectors and fan coils. This unit features a 1 2 inch forged brass body with a durable brass trim, utilizing an NPT x Union Male connection for simplified fieldwork and fitting. With a 2. 5 Cv flow coefficient