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- The ThermoSetter™ 1164A series compact adjustable thermal balancing valve is used for automatic balancing of recirculation loops in domestic hot water systems, to speed hot water delivery, reduce water waste and save energy. The internal thermostatic balancing cartridge automatically modulates flow to ensure a constant temperature in the recirculation piping system. The 1164A Series has an adjustment knob with 105 °F to 150 °F (40 °C to 65 °C) temperature scale indication. The adjustment knob is lockable for tamper-proofing. An integral drywell holds a slide-in temperature gauge for local indication, or a sensor for remote temperature sensing. The standard integral check valve protects against circuit thermo-syphoning.
- Consistent Temperatures in Dynamic Systems: Reduce wait time for hot water. Maintains adjustable set point temperature at fixtures by modulating flow rate through each branch circuit.
- Eliminates Balancing Labor: No differential pressure instruments or reference charts required, unlike traditional balancing valves. Simply set knob to desired circuit temperature.
- Industry-first Temperature Adjustability: No tools required. Adjustable temperature from 105 -150 °F. Lockable adjustment knob to prevent tampering.
- Integral Drywell for Temperature Verification: Temperature monitoring with an optional temperature gauge. For building automation systems, the drywell can be used for a temperature probe.
- Dual Posi-Stop™ Unions: Simplified installation and service with PosiStop’s reliable embedded O-ring union connections to Press, Sweat, NPT and PEX fittings.
- Simple, Compact Design: For space limited installations and applications not requiring thermal disinfection.
- Temperature Gauge
- Body MaterialBRASSEnd StyleFNPTFlow Rate0.35 to 2.1 gpmNominal Size3/4 inCartridge MaterialPSUConnection TypeUnionDimensions5-1/2 in L x 3-3/4 in HManufacturerCaleffiManufacturer #116451AC 002MediaWaterPressure Rating230 psiSeries1164ASoftgoods MaterialEPDMSprings materialStainless SteelTemperature Rating105 to 150 deg FTypeAdjustable