Installation in new systems for automatic adjustment of the performance to flow demands without the use of bypass valves or similar expensive components.Installation in existing systems where the differential pressure of the pump is too high during periods of reduced flow demand.GRUNDFOS ALPHA2 L is especially suitable for the following: Systems with variable flow-pipe temperature.Systems with constant or variable flows where it is desirable to optimise the pump duty point.The pumps are suitable for the following systems: GRUNDFOS ALPHA2 L is designed for circulating liquids in heating systems. The installation of one of these pumps will reduce power consumption considerably, reduce noise from thermostatic valves and similar fittings and improve the control of the system. Pump range Nominal diameter (DN) of suction and discharge ports (15 = 1'*, 20 = 1 1/4', 25 = 1 1/2', 32 = 2') Maximum head : Cast-iron pump housing N: Stainless-steel pump housing Port-to-port length Safety Built-in electrical and thermal protection of the pump. Flexibility Suitable for installation in existing systems. Product introduction The GRUNDFOS ALPHA2 L range offers a host of advantages: Energy savings High-efficient permanent-magnet motors. The pumps are energy-optimised and comply with the requirements of the EuP directive.ġ.

motor based on permanent-magnet/compact-rotor technology.integrated differential-pressure control enabling adjustment of pump performance to the actual system requirement.GRUNDFOS ALPHA2 L is a complete range of circulator pumps with the following features: Union and valve kits Insulating kits Service kitsĪLPHA2 L, United Kingdom ALPHA2 L, Russia Installation Electrical data Start-up Liquid temperature System pressure Inlet pressure Setting the pump Change of pump performanceĪLPHA2 L 25-40, 32-40 ALPHA2 L 15-50 ALPHA2 L 15-60, 25-60, 32-60 Sectional drawing Material specification Motor and control box Pumped liquids Control of heating systems Advantages of pump control GRUNDFOS ALPHA2 L Circulator pumps 50/60 Hz

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