GRALPHA22699F MFG #: ALPHA2 26-99F
  • Brand: Grundfos
  • Applicable Standard: UL (Canada and US)
  • Pressure Rating: 150 psi
The Grundfos ALPHA2 26-99 is a medium sized, energy efficiency circulator fitted with a permanent magnet motor (ECM) and frequency converter. Featuring eight different operating modes including constant pressure AUTOADAPT and proportional pressure AUTOADAPT, the ALPHA2 26-99 is the perfect fit for any heating application. AUTOADAPT functionality enables the ALPHA2 26-99 to control operation automatically within a defined performance range. When set in proportional pressure AUTOADAPT or constant pressure AUTOADAPT, the pump will automatically analyze the heating system, find the optimum system curve and duty point and continue to adjust its operation to changes in demand. A magnetite resistant design, robust ceramic shaft and stainless-steel bearing plate ensure that the ALPHA2 26-99 reliably delivers the optimal system flow at the lowest possible energy consumption.
  • Features and More


  • 8 Intelligent Control Modes - 3-Defined Proportional Pressure Curve Settings, 3-Defined Constant Pressure Curve Settings, Constant Pressure Autoadapt, Proportional Pressure Autoadapt, Magnetite Resistant Design Protects the Pump from Harmful Iron Oxide Found in Heating System
  • High Efficiency Pump Design and Controls Reduce Energy Consumption by up to 85%, Starting Torque Clears Pump of System Debris and Sediment
  • System and Pump Protection Warning and Alarm Indicators
  • LED Light Indicators for Pump Settings and Alarms
  • Easy to Use Pushbutton Control Settings
  • Lead-Free


    Gasket, 1/2 Inch Bolt Hole