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- The ThermoProtec™ boiler protection high-flow thermostatic mixing valve is used in hydronic heating systems with non-condensing boilers, including solid fuel, biomass, gas, LP or oil-fired. It can be installed with steel, cast iron and copper tube style boilers, automatically controlling the return water temperature, preventing condensation of the water vapor contained in the flue gas. The 280 series ThermoProtec™ valve mixes by-pass flow from the boiler with return flow from the system, sending a fixed temperature flow to the boiler which protects against corrosion from condensation occurring when a minimum flue gas temperature is not otherwise maintained.
CALEFFI, 280175A, ThermoProtec™. Thermostatic mixing valve (high-flow) Boiler protection high-flow thermostatic mixing valve. Changeable thermostatic sensor cartridge. Thermostatic sensor cartridge: 130°F Tset standard selection. Brass lower plug. By-pass from boiler complete closing temperature: Tset +18°F (ex. 130°+18°=148°F). connection: 1 1/4" FNPT, union. Maximum operating pressure: 150 psi. Medium temperature range: 40–212 °F. Setting: 130 °F. Material: brass.
- Boiler protection high-flow thermostatic mixing valve
- Changeable thermostatic sensor cartridge
- 130 deg F Tset
- Body MaterialBRASSEnd StyleFNPTNominal Size1-1/4 inPressure Rating150 psiDimensions7-5/8 in L x 6-13/16 in HManufacturerCaleffiManufacturer #280175AMediaGlycol / WaterSeries280Softgoods MaterialEPDM SealSub-BrandThermoProtecTemperature Rating40 to 212 deg FTrim MaterialStainless SteelTypeHigh-Flow Anticondensing