Siemens Building Technology 257-02068B Valve Assembly 320819-301 With a robust 100VA power

With a robust 100VA power rating

Vibration Resistance: Secure locking connectors prevent terminal backing

Automatic Zero Calibration: Pushbutton and remote zero-adjust terminals prevent sensor drift and minimize maintenance callbacks

you know that consistent ignition and flame sensing are the backbone of any reliable gas heating system

Simplified Installation: Includes a 2

Siemens Building Technology 257-02068B Valve Assembly 320819-301 With a robust 100VA powerThe Siemens 257 02068B is a high performance 3 way mixing valve assembly designed for terminal unit applications, featuring a 1 2 inch NPT connection and a 2. 5 Cv linear flow characteristic. This assembly integrates a Siemens 599 Powermite MT Series forged brass body with a rugged 2 inch pneumatic valve actuator, optimized for precise control of hot or chilled water in fan coil units and reheat coils. The spring return pneumatic actuator operates