Siemens Building Technology 257-02041 Valve Assembly 320788-703 While the 8210 series covers

While the 8210 series covers many media types

Featuring a passive NTC20k high-accuracy thermistor

allowing for direct integration into header piping systems without compromising the seal

always calculate the drive velocity before installation

Siemens Building Technology 257-02041 Valve Assembly 320788-703 While the 8210 series coversThe Siemens Building Technology 257 02041 Valve Assembly is a contractor grade solution for precise hydronic control in terminal units and convective applications. This 2 way normally open valve features a 1 2 inch NPT connection and a 4. 0 Cv rating, utilizing a modified equal percentage flow characteristic to ensure linear heat transfer and stable temperature regulation. Built with a robust forged brass body and durable brass trim, the assembly is