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  • Caleffi HydroMixer Injection Pump Mixing Unit - 165612A

    - Dual Line - Alpha 25-55U Pump on Left - No Mixing Valve

    Product ID • 165612A00000

  • $698.75
  • Quantity:
  • Free Ground Shipping


Caleffi HydroMixer Injection Pump Mixing Unit with Insulation - Dual Line with Grundfos Alpha 25-55U variable speed pump on Left - 165612A.  This unit does not have a mixing valve - look at the 166 or 167 HydroMixer series for this.

The Caleffi HydroMixer 165612A provides high temperature flow direct to secondary heating circuits, complete with onboard Grundfos Alpha 25-55U variable speed, supply and return temperature gauges, secondary circuit shut-off ball valves and pre-formed insulation shell.

The unit can be ordered with supply flow and pump on the Left side, and the unit is field reversible to accommodate changing installation requirements.

The adjustable differential pressure by-pass valve 519600 and wall bracket code 165001 are optional. The unit comes with male union connections which require separately purchased, 1 inch sweat or 1 inch NPT, top outlet or bottom inlet fitting kits

Fitting sets sold separately - see to the Left on this page.

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Technical Specs

Caleffi HydroMixer Injection Pump Mixing Unit 165612A - Techs and Specs

  • Suitable Fluids
    water or glycol solutions
  • Max. percentage of Glycol
  • Built in temperature gauges
  • Temperature Gauges
    32 Degrees to 176 Degrees
  • Water Temperature Max
    212 Degrees F
  • Pressure Max
    145 PSI
  • Pump
    Grundfos Pump Alpha 25-55U
  • Pump Speed
  • Pump Location
  • Wall Bracket
  • Standard Connections
    1 Inch Male Straight
  • Required Connections
    1 Inch Sweat or NPT Union - Purchase Separately
  • Differential Pressure By-Pass Valve
  • Manufactured
    Made in Italy

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