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and R-449A using POE oil
it handles media temperatures from 35°F to 250°F and maintains a Class IV leakage rating
remote capillary and sensing bulb for flexible mounting in various ductwork or tank configurations
This kit utilizes EPDM
Siemens Building Technology 257-02030 Valve Assembly 322838-754 and R-449A using POE oilThe Siemens Building Technology 257 02030 Valve Assembly is a high precision solution for terminal unit control in hydronic systems. This 2 way normally open pneumatic valve is engineered with a 1 2 inch NPT connection and a robust forged brass body designed to handle water and 50% water glycol solutions. With a 0. 4 Cv equal percentage flow characteristic, it ensures stable modulating control for convectors, fan coil units, and reheat coils. The
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