As a high close-off (HCO) model

secure installation in existing control boxes

making it ideal for managing flow in fan coil units

While the C12-9025 is a common HVAC temperature control

and RRKA model series

Belimo B250 Valve Els PW 17895 As a high close-off (HCO)The Belimo B250 is a 2 way characterized control valve designed for high performance hydronic systems. Featuring a 2 inch NPT connection and a 57 Cv rating, this valve utilizes an integrated Tefzel characterising disc to maintain an equal percentage flow characteristic. This design ensures stable control loop response by linearizing heat exchanger output. The nickel plated forged brass body is complemented by a 304 stainless steel ball and stem,