Its compact footprint and reliable electrical contacts make it a standard choice for HVAC safety controls and combustion air or fuel gas monitoring applications

ensuring stable modulating control for chilled water

these should be inspected monthly

22-inch diameter knockout on control panels up to 1/4-inch thick

Belimo B321 Valve 322027-701 Its compact footprint and reliableThe Belimo B321 is a 3 4 inch 3 way characterized control valve engineered for precision flow control in hydronic systems. This NPT ball valve features a 24 Cv rating and utilizes a nickel plated forged brass body paired with a stainless steel ball and stem to resist corrosion and scaling in high demand environments. Designed for chilled or hot water applications, this valve handles media temperatures up to 250F and is compatible with up to 60% glycol