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The high-efficiency ALPHA SOLAR circulator pump from Grundfos comes with a permanent magnet motor and is designed to be integrated in thermal solar pump systems.

Four constant-curve settings are available and the speed can be controlled by a low-voltage PWM signal to optimize solar harvesting and reduce power consumption.

Grundfos ALPHA SOLAR offers very simple installation and a low noise level. This high-efficiency and reliable pump is built to be maintenance-free with durable ceramic bearings and shaft, as well as corrosion-resistant stainless-steel components.
Features
  • Easy Access: A manual deblocking screw is accessible from the front of the pump.
  • Remote troubleshooting: A dry-running warning is available as a PWM feedback signal.
  • Easy operation: Very simple installation, low noise level and no maintenance required.

1 - 7 of 7 Part Numbers
ALPHA SOLAR 15- 130
ALPHA SOLAR 15- 130
  • Nominal Diameter of Inlet & Outlet Ports - 1"
  • Port to Port Length - 130 mm
ALPHA SOLAR 15-75
ALPHA SOLAR 15-75
  • Nominal Diameter of Inlet & Outlet Ports - 1"
  • Maximum Head [DM] - 75
ALPHA SOLAR 15-75 130
ALPHA SOLAR 15-75 130
  • Nominal Diameter of Inlet & Outlet Ports - 1"
  • Maximum Head [DM] - 75
  • Port to Port Length - 130 mm
ALPHA SOLAR 25-145 130
ALPHA SOLAR 25-145 130
  • Nominal Diameter of Inlet & Outlet Ports - 1-1/2"
  • Maximum Head [DM] - 145
  • Port to Port Length - 130 mm
ALPHA SOLAR 25-145 180
ALPHA SOLAR 25-145 180
  • Nominal Diameter of Inlet & Outlet Ports - 1-1/2"
  • Maximum Head [DM] - 145
  • Port to Port Length - 180 mm
ALPHA SOLAR 25-75 130
ALPHA SOLAR 25-75 130
  • Nominal Diameter of Inlet & Outlet Ports - 1-1/2"
  • Maximum Head [DM] - 75
  • Port to Port Length - 130 mm
ALPHA SOLAR 25-75 180
ALPHA SOLAR 25-75 180
  • Nominal Diameter of Inlet & Outlet Ports - 1-1/2"
  • Maximum Head [DM] - 75
  • Port to Port Length - 180 mm
1 - 7 of 7 Part Numbers

Specifications

System Pressure

  • Maximum 1.0 MPa (10 bar)

Minimum Inlet Pressure

  • 0.05 MPa (0.50 bar) at 95° C Liquid Temperature

Maximum Liquid Temperature

  • 2° C - 110° C at 70° C Ambient Temperature

Enclosure Class

  • IPX4D

Approval and Marking

  • VDE
  • CE
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