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Grundfos Alpha Pumps
The Grundfos ALPHA Circulator Pumps are an outstanding choice for professionals seeking efficient and versatile solutions for heating, air conditioning, and domestic hot water systems.
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The Grundfos ALPHA Circulator Pumps are an outstanding choice for professionals seeking efficient and versatile solutions for heating, air conditioning, and domestic hot water systems.
Key Features:
- High Efficiency: Engineered for superior performance with reduced energy consumption.
- User-Friendly Design: Simple to install and operate, minimizing time and effort for installers.
- Wide Compatibility: Ideal for diverse applications, from specialized heating to general-purpose solutions.
- Performance Capabilities:
- Max Flow Rate: 4 m³/h
- Maximum Head: 15 meters
- Operating Liquid Temperature: 0°C to 110°C
- Maximum Pressure (p max): 10 bar
Applications:
The ALPHA circulator pumps are suitable for:
- Commercial Heating Systems: Reliable and efficient for larger-scale heating needs.
- Domestic Heating Systems: Perfect for residential applications, providing consistent and quiet operation.
- Industrial Heating Systems: Robust enough for demanding environments, ensuring longevity and performance.
The Grundfos ALPHA3 Circulator Pump offers advanced control and functionality tailored for modern heating systems. It simplifies hydronic balancing and optimizes performance for both radiator and underfloor heating, using the Grundfos GO Remote app. Below are the key details about the ALPHA3 series:
Key Features
-
Seamless Control with Grundfos GO Remote:
- Easy setting, monitoring, and management for user convenience.
- Simplifies hydronic balancing for radiator and underfloor systems.
-
Modes and Functionality:
- Radiator and underfloor heating modes with AUTOADAPT functionality.
- Multiple settings: Proportional Pressure, Constant Pressure, and Constant Curve, all adjustable within the set range.
-
Scheduling & Seasonal Optimization:
- Personalized scheduling with a real-time clock.
- Summer mode for seasonal energy efficiency.
-
Enhanced Performance:
- Firmware upgrades ensure future readiness and digital enhancements.
- Automatic pump venting restores initial settings post-process.
- Efficient permanent-magnet rotor/compact-stator motor technology.
-
Safety & Energy Efficiency:
- Built-in electrical and thermal protection.
- Low EEI (Energy Efficiency Index) for minimized energy consumption.
- Maintenance-free operation and quiet performance.
Duty Range
- Maximum Flow Rate (Q): 3.8 m³/h
- Maximum Head (H): 8 m
- Maximum System Pressure: 1.0 MPa (10 bar)
- Liquid Temperature Range: 2°C to 110°C
Available Models
- ALPHA3 32-80 180
- ALPHA3 25-80 180
- ALPHA3 25-80 130
- ALPHA3 25-60 180
- ALPHA3 25-60 130
- ALPHA3 25-40 180
- ALPHA3 15-80 130
- ALPHA3 15-60 130
Performance Curve
Dimensions
|
|
L1 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
G |
Net |
Gross |
[dm3] |
|
ALPHA3 15-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA3 15-50/60* |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 15-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA3 15-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA3 25-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 25-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA3 25-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 25-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA3 25-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 25-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA3 32-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA3 32-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA3 32-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
* Available in UK only. |
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The ALPHA2 Circulator Pump is a versatile and energy-efficient solution designed for heating, air-conditioning, and domestic hot-water systems. Its innovative AUTOADAPT feature ensures seamless adjustments to varying system demands, offering optimal comfort, energy savings, and easy commissioning.
Applications
The ALPHA2 pump is ideal for use in:
- Heating systems
- Air-conditioning and cooling systems
- Domestic hot-water systems
Key Features
-
Advanced Control Modes:
- Proportional-pressure control
- Constant-pressure control
- Constant-curve/constant-speed options
-
Performance Optimization:
- Automatic adjustment for efficiency and comfort.
-
User-friendly Operation:
- Real-time display of power consumption and flow.
- Automatic night setback and manual summer mode.
-
Silent and Reliable:
- Low noise levels.
- Maintenance-free design.
-
Energy Efficiency:
- Low Energy Efficiency Index (EEI) ensures significant energy savings.
-
Simplified Installation:
- User-friendly design requiring no external motor protection.
- Includes insulating shells for pumps without air separating chambers.
-
Wide Operating Range:
- Ambient temperature: 0 to 40 °C.
- Liquid temperature: +2 to +110 °C.
-
Compatibility with ALPHA Reader:
- Facilitates fast and safe hydronic balancing of radiators and underfloor heating systems.
Models
| Model Name | Port-to-Port Length (mm) |
|---|---|
| ALPHA2 32-80 180 | 180 |
| ALPHA2 32-60 180 | 180 |
| ALPHA2 32-40 180 | 180 |
| ALPHA2 25-80 180 | 180 |
| ALPHA2 25-80 130 | 130 |
| ALPHA2 25-60 180 | 180 |
| ALPHA2 25-60 130 | 130 |
| ALPHA2 25-40 180 | 180 |
| ALPHA2 25-40 130 | 130 |
| ALPHA2 15-80 130 | 130 |
| ALPHA2 15-60 130 | 130 |
| ALPHA2 15-40 130 | 130 |
Duty Range
- Maximum flow rate, Q: 3.8 m³/h
- Maximum head, H: 8 metres
- Maximum system pressure: 1.0 MPa (10 bar)
Performance Curve
Dimensions
|
Pump type |
L1 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
G |
Net |
Gross |
[m3] |
|
ALPHA2 15-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA2 15-50 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA2 15-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA2 15-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA2 25-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA2 25-40 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-50 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
52 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA2 25-50 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
52 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA2 25-60 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA2 25-80 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-40 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 1 1/2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 25-40 A |
180 |
64 |
98 |
32 |
63 |
50 |
124 |
81 |
G 1 1/2 |
2.9 |
3.0 |
0.0042 |
|
ALPHA2 25-50 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
52 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-50 N |
180 |
54 |
65 |
44 |
44 |
37 |
104 |
52 |
G 1 1/2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 25-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-60 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 1 1/2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 25-60 A |
180 |
64 |
98 |
32 |
63 |
50 |
124 |
81 |
G 1 1/2 |
2.9 |
3.0 |
0.0042 |
|
ALPHA2 25-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA2 25-80 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 1 1/2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 32-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 32-40 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 2 |
2.3 |
2.4 |
0.004 |
|
ALPHA2 32-50 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 32-50 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 2 |
2.3 |
2.4 |
0.004 |
|
ALPHA2 32-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 32-60 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 2 |
2.3 |
2.4 |
0.004 |
|
ALPHA2 32-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA2 32-80 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G 2 |
2.3 |
2.4 |
0.004 |
The ALPHA2 L is a robust and high-efficiency circulator pump, designed to meet essential requirements for commercial, domestic, and industrial heating systems. Its versatility and efficiency make it an ideal choice for circulating liquids within heating systems. Below is a summary of its specifications and features:
Models:
- ALPHA2 L 32-60 180
- ALPHA2 L 25-40 180
Duty Range:
- Max Flow: 4 m³/h
- Max Head: 15 m
- Liquid Temperature: 0°C to 110°C
- Max Pressure (p max): 10 bar
Features:
-
Multiple Speed Options:
- Three fixed-speed curves.
- Two proportional-pressure curves.
- Two constant-pressure curves.
-
Energy-Efficient Design:
Compliant with the low energy consumption standards of the ErP directive. -
User-Friendly Interface:
Simplified operation for quick and easy commissioning.
Applications:
- Commercial Heating
- Domestic Heating
- Industrial Heating
Performance Curve
Dimensions
|
Pump type |
L1 |
B3 |
B4 |
H1 |
H2 |
G |
Net |
Gross |
[m3] |
|
|
ALPHA2 L 20-45 N |
150 |
43 |
43 |
27 |
127 |
1 1/4 |
1.8 |
2.0 |
0.00383 |
The ALPHA1 model B is a versatile and efficient pump solution suitable for a range of heating and cooling applications. It incorporates advanced ECM (Electronically Commutated Motor) technology to deliver high performance and energy efficiency while being simple to install and maintain.
Applications
- Heating systems
- Air-conditioning and cooling systems
- Domestic hot-water systems
Key Features
- Multiple Control Curves:
- Three constant pressure curves
- Three constant speed curves
- Three proportional pressure curves
- Energy Efficiency:
- Maintains a low Energy Efficiency Index (EEI) for superior energy performance.
- Maintenance-Free:
- Designed for hassle-free operation without the need for maintenance.
- Quiet Operation:
- Operates with minimal noise emission.
- User-Friendly Installation:
- Designed for straightforward installation to ensure convenience.
Important Note
The ALPHA1 ECM pumps are not compatible with external speed controllers that alter or pulse the supply voltage. Ensure proper setup to maintain pump performance and longevity.
Models
- ALPHA1 25-80 130
- ALPHA1 25-60 180
- ALPHA1 25-60 130
- ALPHA1 15-40 130
Performance Curve
Dimensions
|
|
L1 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
G |
Net |
Gross |
[dm3] |
|
ALPHA1 15-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 15-50* |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 15-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 15-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 25-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-40 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-40 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 25-50* |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-50 N* |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-50* |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-50 N* |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 25-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-60 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-60 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 25-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-80 N* |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-80 N* |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-50* |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
A high-efficiency circulator pump specifically engineered for domestic hot-water systems, featuring a durable stainless-steel pump housing and advanced integrated controls for performance and energy efficiency.
Applications
- Domestic hot water recirculation
Key Features
- Control Options: Offers three constant pressure curves, three constant speed curves, and three proportional pressure curves.
- Energy Efficiency: Designed with a low Energy Efficiency Index (EEI) for optimal performance.
- Maintenance-Free: No maintenance required, ensuring hassle-free operation.
- Quiet Operation: Minimal noise emissions for enhanced user comfort.
- Easy Installation: Simplified setup process.
Available Models
- ALPHA1 25-80 N 130
- ALPHA1 25-60 N 180
- ALPHA1 25-40 N 180
- ALPHA1 25-40 N 130
- ALPHA1 20-60 N 150
- ALPHA1 20-40 N 150
Performance Curve
Dimensions
|
|
L1 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
G |
Net |
Gross |
[dm3] |
|
ALPHA1 15-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 15-50* |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 15-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 15-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1 |
1.7 |
1.9 |
4.00 |
|
ALPHA1 25-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-40 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-40 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 25-50* |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-50 N* |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-50* |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-50 N* |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 25-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-60 N |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-60 N |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 25-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
1.9 |
2.0 |
4.00 |
|
ALPHA1 25-80 N* |
130 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G1½ |
2.0 |
2.1 |
4.00 |
|
ALPHA1 25-80 N* |
180 |
54 |
54 |
44 |
44 |
37 |
104 |
47 |
G1½ |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-50* |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
|
ALPHA1 32-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G2 |
2.1 |
2.3 |
4.00 |
The ALPHA1 L circulator pump is a robust and energy-efficient solution for heating systems, offering flexibility and ease of integration, whether for replacements or new installations. Here's an overview:
Key Features
-
Versatile Performance
- Supports three constant-curve/constant-speed options for customized operation.
- Includes dedicated modes for radiator and underfloor heating, enhancing adaptability.
-
Advanced Control
- Features speed control via low-voltage PWM signal profile A for heating, enabling efficient analog signal generation from digital sources.
-
Energy Efficiency
- Designed with a low Energy Efficiency Index (EEI), ensuring optimal energy performance and reduced operational costs.
-
Enhanced Functionality
- Equipped with a deblocking device, promoting reliable operation under challenging conditions.
-
User-Friendly Design
- Maintenance-free for long-term dependability.
- Operates with minimal noise, ensuring a quiet environment.
- Facilitates easy installation, reducing setup time and effort.
Available Models
- ALPHA1 L 25-60 180
- ALPHA1 L 25-60 130
- ALPHA1 L 25-40 180
- ALPHA1 L 25-40 130
Applications
The ALPHA1 L circulator pump is suitable for a variety of heating applications, offering reliable performance and energy efficiency, making it a practical choice for residential and commercial systems.
Performance Curve
Dimensions
|
|
L |
L3 |
L4 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
H4 |
G |
|
ALPHA1 L 15-40 |
130 |
88 |
72 |
54 |
54 |
46 |
47 |
25 |
102 |
47 |
149 |
G 1 |
|
ALPHA1 L 15-60 |
130 |
88 |
72 |
54 |
54 |
46 |
47 |
25 |
102 |
47 |
149 |
G 1 |
|
ALPHA1 L 15-65 |
130 |
88 |
72 |
54 |
54 |
46 |
47 |
25 |
102 |
47 |
149 |
G 1 |
|
ALPHA1 L 20-40 |
130 |
88 |
72 |
54 |
54 |
46 |
47 |
25 |
102 |
47 |
149 |
G 1 1/4 |
|
ALPHA1 L 20-60 |
130 |
88 |
72 |
54 |
54 |
46 |
47 |
25 |
102 |
47 |
149 |
G 1 1/4 |
|
ALPHA1 L 25-40 |
130 |
88 |
72 |
54 |
54 |
46 |
47 |
25 |
102 |
47 |
149 |
G 1 1/2 |
|
ALPHA1 L 25-40 |
180 |
88 |
72 |
54 |
54 |
46 |
46 |
25 |
102 |
47 |
149 |
G 1 1/2 |
|
ALPHA1 L 25-60 |
130 |
88 |
72 |
54 |
54 |
46 |
47 |
25 |
102 |
47 |
149 |
G 1 1/2 |
|
ALPHA1 L 25-60 |
180 |
88 |
72 |
54 |
54 |
46 |
46 |
25 |
102 |
47 |
149 |
G 1 1/2 |
|
ALPHA1 L 25-80 |
180 |
88 |
72 |
54 |
54 |
46 |
46 |
25 |
102 |
47 |
149 |
G 1 1/2 |
|
ALPHA1 L 32-40 |
180 |
88 |
72 |
54 |
54 |
46 |
48 |
26 |
102 |
47 |
149 |
G 2 |
|
ALPHA1 L 32-60 |
180 |
88 |
72 |
54 |
54 |
46 |
48 |
26 |
102 |
47 |
149 |
G 2 |
|
ALPHA1 L 32-80 |
180 |
88 |
72 |
54 |
54 |
46 |
48 |
26 |
102 |
47 |
149 |
G 2 |
Engineered for thermal solar systems, the ALPHA SOLAR circulator pump is designed to deliver efficient and reliable performance. Its advanced features and robust build make it a top choice for various heating applications.
Key Features
- Three Constant-Curve Modes: Ensures consistent speed for optimal operation.
- PWM C Profile: Leverages a digital method to generate an analog signal, allowing precise regulation via a low-voltage PWM signal from a solar controller.
- Energy Efficiency: Achieves a low Energy Efficiency Index (EEI).
- Maintenance-Free: Designed for hassle-free operation with minimal upkeep.
- Quiet Operation: Operates with minimal noise for improved comfort.
- Easy Installation: Simplifies the setup process for convenience.
Model Variants
- ALPHA SOLAR 25-145 N 180
- ALPHA SOLAR 25-145 180
- ALPHA SOLAR 25-75 N 180
- ALPHA SOLAR 25-75 180
- ALPHA SOLAR 25-75 130
- ALPHA SOLAR 15-75 130
Applications
- Domestic heating systems.
Performance Specifications
- Maximum Flow: 3 m³/h.
- Maximum Head: 15 m.
- Liquid Temperature Range: 0°C to 110°C.
- Maximum Pressure: 10 bar.
Performance Curve
Dimensions
|
Pump type |
|
|
|
|
|
|
|
Connections [G] |
Weight [kg] |
|
|
L1 |
L3 |
B1 |
B2 |
H1 |
H2 |
H3 |
|
|
|
ALPHA SOLAR 15-75 130 |
130 |
90 |
72 |
45 |
36 |
92 |
128 |
1 |
1.8 |
|
ALPHA SOLAR 25-75 130 |
130 |
90 |
72 |
45 |
36 |
92 |
128 |
1 1/2 |
1.9 |
|
ALPHA SOLAR 25-75 180 |
180 |
90 |
72 |
45 |
36 |
92 |
128 |
1 1/2 |
2.0 |
|
ALPHA SOLAR 25-145 180 |
180 |
90 |
72 |
45 |
25 |
103 |
128 |
1 1/2 |
2.0 |
The Grundfos ALPHA3 circulator pump is an advanced solution designed for optimal performance in heating systems. With innovative features and compatibility with the Grundfos GO Remote app, it simplifies installation, operation, and hydronic balancing for both radiator and underfloor heating systems.
Key Features
-
Smart Control and Monitoring
- Seamless operation with the Grundfos GO Remote app.
- Intuitive settings, control, and real-time monitoring for a user-friendly experience.
-
Versatile Heating Modes
- Supports both radiator and underfloor heating modes.
- Equipped with AUTOADAPT functionality for optimal performance.
-
Customizable Performance Settings
- Offers three operational modes:
- Proportional Pressure
- Constant Pressure
- Constant Curve
- Adjustable setpoints within selected ranges for tailored operation.
- Offers three operational modes:
-
Enhanced Scheduling and Seasonal Optimization
- Features a real-time clock for personalized scheduling.
- Includes a summer-mode function to improve efficiency during warmer months.
-
Future-Ready Firmware
- Enables updates for continued performance enhancements and digital advancements.
-
Convenient Maintenance-Free Design
- Automatic pump-venting ensures smooth operation.
- Quiet and maintenance-free operation enhances user comfort.
-
Efficient Motor Technology
- Incorporates permanent-magnet rotor/compact-stator technology for superior energy efficiency.
- Low EEI (Energy Efficiency Index) rating ensures reduced energy consumption.
-
Reliable Safety Features
- Built-in electrical and thermal protection safeguards pump longevity.
Duty Range
- Maximum Flow Rate (Q): 3.8 m³/h
- Maximum Head (H): 8 m
- Maximum System Pressure: 1.0 MPa (10 bar)
- Liquid Temperature: 2 to 110 °C
Available Models
| Model | Pipe Connection Size | Installation Length |
|---|---|---|
| ALPHA3 32-80 180 | 32 mm | 180 mm |
| ALPHA3 25-80 180 | 25 mm | 180 mm |
| ALPHA3 25-80 130 | 25 mm | 130 mm |
| ALPHA3 25-60 180 | 25 mm | 180 mm |
| ALPHA3 25-60 130 | 25 mm | 130 mm |
| ALPHA3 25-40 180 | 25 mm | 180 mm |
| ALPHA3 15-80 130 | 15 mm | 130 mm |
| ALPHA3 15-60 130 | 15 mm | 130 mm |
Performance Curve
Dimensions
|
|
L1 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
G |
Net |
Gross |
[dm3] |
|
ALPHA3 15-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA3 15-50/60* |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 15-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA3 15-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 |
1.7 |
1.9 |
0.004 |
|
ALPHA3 25-40 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 25-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA3 25-60 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 25-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA3 25-80 |
130 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
1.9 |
2.0 |
0.004 |
|
ALPHA3 25-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 1 1/2 |
2.0 |
2.1 |
0.004 |
|
ALPHA3 32-40 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA3 32-60 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
ALPHA3 32-80 |
180 |
54 |
54 |
44 |
44 |
36 |
104 |
47 |
G 2 |
2.1 |
2.3 |
0.004 |
|
* Available in UK only. |
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