Belimo ZONE225N-80 Valve 321894-709 3-blade propeller features a 1/2-inch

3-blade propeller features a 1/2-inch bore and a fixed hub located on the intake side (opposite discharge)

it is frequently used as emergency heat or for supplementary heating in smaller zones or warmer climates

Its flange mount design includes a metallic enclosure that meets UL 1995 plenum use requirements

and R502 in suction-side monitoring

Enhanced Reliability: The 120-second heater circuit is temperature-compensated to maintain accurate timing in varying mechanical room conditions

Belimo ZONE225N-80 Valve 321894-709 3-blade propeller features a 1/2-inchWhen you're spec'ing out a reliable solution for hydronic applications, the Belimo ZONE225N 80 valve is a solid choice. This 2 way zone valve is engineered for precision control in fan coil units, baseboards, and other systems requiring dependable on off operation. Featuring a robust forged brass body, stainless steel stem, and EPDM seals, it's built to handle chilled or hot water, including up to 50% glycol mixtures, across a fluid temperature range