Siemens Building Technology 257-02039 Valve Assembly 319847-401 provides the flexibility needed for

provides the flexibility needed for complex building automation

5A circuit breaker acts as a resettable safety

Constructed with durable materials and silver cadmium oxide contacts

including the ZF

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

Siemens Building Technology 257-02039 Valve Assembly 319847-401 provides the flexibility needed forThe 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