Siemens Building Technology 257-02039 Valve Assembly 318820-201 you must check the factory

you must check the factory model number stamped on your original pilot

supporting adjustable superheat settings to maximize evaporator efficiency

Standard H54 series models are engineered to handle overpressure conditions significantly above their set range

5 MFD 370V dual run capacitor designed for high-demand HVACR applications

Precision Engineering: Features a high-quality alumina ceramic insulator providing superior dielectric strength for consistent spark performance

Siemens Building Technology 257-02039 Valve Assembly 318820-201 you must check the factoryThe 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