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The ALPHA2 L is the latest and most innovative member of the Grundfos family of high-quality circulators.
The pump is easy to install and does not have any complicated settings. Simply install and manually set the pump. The ALPHA2 L will automatically adjusts its operation to changes in demand.

Specifications Type 15-60 BP

Water temperature range: 2°C~110°C
Density: 998.2 kg/m³

TF class: 110
Approvals on nameplate: CE, BSI

Pump housing: Cast iron
EN-JL 1020
ASTM A48-25 B
Impeller: Composite, PP

Range of ambient temperature:  0°C~40°C
Maximum operating pressure: 10 bar
Pipe connection: G 1
Pressure stage: PN 10

Power input – P1: 5W~45W
Maximum current consumption: 0.05A~0.38A
Mains frequency: 50 Hz
Rated voltage: 1 x 230V
Enclosure class (IEC 34-5): 42
Insulation class (IEC 85): F

Specifications Type 15/25-40 130

Water temperature range: 2°C~110°C
Density: 998.2 kg/m³

TF class: 110
Approvals on nameplate: CE, BSI

Pump housing: Cast iron
EN-JL 1020
ASTM A48-25 B
Impeller: Composite, PP

Range of ambient temperature:  0°C~40°C
Maximum operating pressure: 10 bar
Pipe connection: G 1 ½
Pressure stage: PN 10
Port-to-port length: 130mm

Power input – P1: 5W~32W
Maximum current consumption: 0.05A~0.27A
Mains frequency: 50 Hz
Rated voltage: 1 x 230V
Enclosure class (IEC 34-5): 42
Insulation class (IEC 85): F

Specifications Type 15/25-60 130

Water temperature range: 2°C~110°C
Density: 998.2 kg/m³

TF class: 110
Approvals on nameplate: CE, BSI

Pump housing: Cast iron
EN-JL 1020
ASTM A48-25 B
Impeller: Composite, PP

Range of ambient temperature:  0°C~40°C
Maximum operating pressure: 10 bar
Pipe connection: G 1 ½
Pressure stage: PN 10
Port-to-port length: 130mm

Power input – P1: 5W~45W
Maximum current consumption: 0.05A~0.38A
Mains frequency: 50 Hz
Rated voltage: 1 x 230V
Enclosure class (IEC 34-5): 42
Insulation class (IEC 85): F

ALPHA2 L to replace an existing Grundfos circulation pump

ALPHA2 L 15/25-40 130 (in line pump)
Replaces UPS 15-40 en UPS 25-40

ALPHA2 L 15/25-60 130 (in line pump)
Replaces UPS 15-50, UPS 15-60, UPS 25-50 en UPS 25-60

ALPHA2 L 15-60 BP (with back panel)
Replaces UPS 15-55 en UPS 25-55

Should your current underfloor heating system be equipped with a different type of Grundfos circulation pump,
you can click here to check which ALPHA2 L can be used as replacement.

Applications

The Grundfos ALPHA2 L is designed for circulating liquids in heating systems. Pumps with stainless steel pump housings can also be used in domestic hot-water systems.

The ALPHA2 L is suitable for;

  • Systems with constant or varying flows where it is desirable to optimise the pump duty point
  • Systems with a varying flow-pipe temperatures
  • Systems where night setback is required
Weight 1 kg

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