Siemens Building Technology 257-02035 Valve Assembly Els PW 17895 Delivering 850 RPM with a

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Siemens Building Technology 257-02035 Valve Assembly Els PW 17895 Delivering 850 RPM with aThe Siemens 257 02035 is a 2 way normally open pneumatic valve assembly designed for precise flow control in HVAC terminal unit applications. This 1 2 inch assembly features an NPT x Union Male connection and an equal percentage flow characteristic with a 1. 0 Cv rating, ensuring stable modulating control in water or steam systems. Constructed with a forged brass body and durable brass trim, the unit is engineered for long term reliability under