Siemens Building Technology 257-02039 Valve Assembly 320788-702 Exceeding this pressure may prevent

Exceeding this pressure may prevent the trap from opening against the system head

accurate configuration of cut-in and cut-out points

6 specifications match the drive and dimensions of the original unit is vital for maintaining the intended CFM output and system efficiency in residential and light commercial Trane equipment

and MU2020

preventing hunting and improving overall loop stability in air handling units and heat exchangers

Siemens Building Technology 257-02039 Valve Assembly 320788-702 Exceeding this pressure may preventThe 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