Grundfos Alpha1L 25-60 heating circulation pump

Product Description

The Grundfos ALPHA1 L 25-60 180 is a highly efficient circulation pump with permanent magnet motor (ECM technology).

The pump has three control modes:
-Radiator heating mode
-Floor heating mode and constant curve or constant speed.In addition, the speed can be controlled by a PWM signal (pulse width modulation).

The wet-running pump has a ceramic shaft, stainless steel rotor housing, compound impeller, all of which contribute to a long service life. The pump is self-venting and has a simple selection of the control mode.The compact design fits into the most common installations and boilers. Pump and motor form one unit without a shaft seal. This means that the bearings are lubricated by the pumped liquid. This design ensures maintenance-free operation. The pump housing is made of gray cast iron and is galvanically coated to improve corrosion resistance.

Technical specifications:
Max. Head: 6.3m
Flow rate max .: 3.2m3 / h
Medium temperature: max. 95 ° C
Ambient temperature: 0 ° C ... 55 ° C
Operating pressure: max. 10 bar
Pipe connection: DN 25 -> 1 "or approx. 32mm
Union: G 1 1/2 "(wrench size approx.53mm)
Pump thread: 1 1/2 "or approx. 45mm
Installation length: 180 mm
Power: 4W-45W
Switching stages: regulated
electrical connection: 230V / 50HZ
Insulation class: F
Weight: 2.25kg