ALPHA2 L OEM circulator pump - heating, hot water

ALPHA2 is a complete range of standalone* circulators. More than 3 million ALPHA2s have rolled off our production lines since its introduction in 2007.

The ALPHA2 L variant features integrated differential-pressure control, enabling adjustment of pump performance to the actual system requirements. The installation of a GRUNDFOS ALPHA2 L pump will reduce the power consumption considerably, reduce noise from thermostatic valves and similar fittings, and improve the control of the system.

Characteristic Features

• High Efficiency circulator for standalone applications based on a permanent-magnet motor/compact-rotor technology
• According Ecodesign requirement January, 2013; EEI ≤ 0.23
• Internally self-controlled circulator
• Integrated differential-pressure control enabling adjustment of pump performance to the actual system requirements.
• 5 Configuration Options:
  highest proportional pressure curve (default),
  lowest proportional pressure curve
  lowest constant pressure curve
  highest constant pressure curve
  constant curve speed I, II and III
  
• ALPHA2 L can run on as little as 5 W
  

Benefits

• Enhance System Efficiency
  Due to the ALPHA2 L, control is affected by adapting the differential pressure to the flow.
  (proportional- and constant-pressure control). Contrary to an uncontrolled pump, the proportional-pressure-controlled GRUNDFOS ALPHA2 L reduces the differential pressure as a result of falling heating demand.
• Compact Design
  Small and easy accessible compact design with control integrated in pump
• High reliability
  Ceramic bearing shaft.
  The ALPHA2 L comes equipped with ceramic bearing shafts for a long and trouble-free lifetime. The ceramic material is extremely durable and will not wear.
  De-blocking system.
  Electronic de-blocking that maintains the maximum starting torque up to 25 Ncm.
  Field and lab tested product quality