Siemens Building Technology 257-02008B Valve Assembly 322838-754 this part is the current

this part is the current official replacement and provides full backwards compatibility with all systems previously utilizing the 100167689 or RLY2108 sequence

Operating at 115V and 1/70 HP

If your blower wheel is cracked or balanced improperly

two brass pressure taps

Siemens Building Technology 257-02008B Valve Assembly 322838-754 this part is the currentWhen you are managing terminal unit applications like convectors or fan coil units, the Siemens Building Technology 257 02008B Valve Assembly is a reliable choice for throttling or shut off control. This 2 way normally closed pneumatic valve is engineered with a 1 2" NPT connection and a 2. 5 Cv rating, utilizing a modified equal percentage flow characteristic to ensure stable heat transfer in chilled or hot water systems. The forged brass body is