Caleffi
Caleffi is an Italian manufacturer of plumbing equipment and is represented in the Supomp catalog by pressure-reducing and air-venting products. The range includes pressure-reducing valves with pressure gauges and unions, automatic air vents that purge air accumulated at high points in the system, and automatic air-bleed valves for radiators. Pressure-reducing valves protect fittings and appliances by reducing mains or booster pump pressure to the set value, while air vents help prevent noise and efficiency losses caused by air in central heating and underfloor heating systems. When selecting a product, compare the connection size, operating pressure, and temperature limit with your existing system; fitting a Y-strainer upstream of the pressure-reducing valve is recommended.