Grundfos ALPHA2 25-60 N 130 Circulator Pump
P/N 99411287
Grundfos ALPHA2 high-efficiency circulator pumps are designed for circulating liquids in heating systems. The stainless-steel variant of the ALPHA2 is suitable for e.g. domestic hot-water systems. With an energy efficiency index (EEI) well below the ErP benchmark, it ensures substantial energy savings.
The AUTOADAPT function continuously adapts the pump performance to the actual heat demand, i.e. the size of the system and changing heat demand during the year. The AUTOADAPT feature finds the setting that provides optimal comfort with minimal energy consumption and makes the commissioning fast, safe, and easy. ALPHA2 also offers proportional-pressure, constant-pressure and constant-curve control modes.
Technical
| Rated flow |
1.94 m³/h |
| Rated head |
3.28 m |
| Maximum head |
60 dm |
| TF class |
110 |
| Approvals |
CE,VDE,EAC,RCM,SEPRO |
| Model |
E |
Materials
| Pump housing |
Stainless steel |
|
EN 1.4308 |
|
ASTM A351-CF8 |
| Impeller |
Composite |
|
PES 30% GF + PESU-GF20% |
Installation
| Range of ambient temperature |
0 .. 40 °C |
| Maximum operating pressure |
10 bar |
| Type of connection |
G |
| Size of connection |
1 1/2 inch |
| Pressure rating for connection |
PN 10 |
| Port-to-port length |
130 mm |
Liquid
| Pumped liquid |
Water |
| Liquid temperature range |
0 .. 110 °C |
| Selected liquid temperature |
60 °C |
| Density |
983.2 kg/m³ |
Electrical data
| Minimum power input - P1 |
3 W |
| Power input P1 |
34 W |
| Mains frequency |
50 / 60 Hz |
| Rated voltage |
1 x 230 V |
| Maximum current consumption |
0.04 .. 0.32 A |
| Enclosure class (IEC 34-5) |
X4D |
| Insulation class (IEC 85) |
F |
| Built-in motor protection |
NONE |
| Thermal protec |
ELEC |
Controls
| Aut. night |
automatic reduced night-time duty included |
Others
| Energy (EEI) |
0.17 |
| Terminal box position |
6H |
| Net weight |
2.04 kg |
| Gross weight |
2.2 kg |
| Shipping volume |
0.004 m³ |
| Danish VVS No. |
380463160 |
| Swedish RSK No. |
5790514 |
| Finnish LVI No. |
4615346 |
| Norwegian NRF no. |
9043162 |
| Country of origin |
DK |
| Custom tariff no. |
84137090622081967 |
