Siemens Building Technology 257-02039 Valve Assembly 320788-702 allowing for the real-time monitoring

allowing for the real-time monitoring of refrigerant charge and flow characteristics

System Integrity: Using an authentic Raypak 007400F maintains the original performance profile of your heater

What causes a 240V 40W heater to fail

accurate configuration of cut-in and cut-out points

Siemens Building Technology 257-02039 Valve Assembly 320788-702 allowing for the real-time monitoringThe 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