Circulation pump CO Grundfos ALPHA1 GO 25-60 180 body cast iron functions constant proportional 6 m 3.5 m3/h
- Circulation pump for heating and cooling systems, provides circulation of water or glycol mixture, with a maximum head of 6 m.
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Grundfos ALPHA1 GO 25-60 180 (93074169) - High-efficiency circulation pump for heating systems
The Grundfos ALPHA1 GO 25-60 180 is an electronic circulating pump with ECM motor, designed to circulate liquids in heating and air conditioning systems. The unit offers three control modes - constant pressure, proportional pressure and constant curve - allowing ideal adjustment to the requirements of the system. With an EEI rating ≤ 0.20 and low noise emissions (<25 dB), the ALPHA1 GO 25-60 180 provides quiet, efficient and economical operation in residential and commercial HVAC systems.
- Maximum lift height: 6 m
- Maximum flow rate: 3.5 m³/h
- Energy-efficient ECM motor (EEI ≤ 0.20)
- Operating modes: constant pressure, proportional pressure, constant curve
- Port-to-port: 180 mm, G 1½" connection
Product description
The ALPHA1 GO 25-60 180 pump was developed for easy replacement of older UPS models and other circulation pumps. With apLication of Grundfos GO RepLace, you can instantly select the right model and set the operating parameters. The pump is equipped with an automatic venting function, dry-run protection and "Robust Start", which eliminates the risk of blockage by dirt, lime deposits or magnetite. The built-in LED display shows the current energy consumption, and the intuitive control panel allows easy switching between operating modes.
Features
ALPHA1 GO has three control modes: constant pressure, proportional pressure and constant curve, with three speed levels (I, II, III) for each mode. With an automatic restart function and dry-run detection, the pump ensures reliability even in harsh operating conditions. Ceramic bearings and shaft guarantee a long service life, while the composite material impeller design prevents corrosion. Built-in motor protection eliminates the need for external protection.
Technical data
| Category | Parameter |
|---|---|
| Model | Grundfos ALPHA1 GO 25-60 180 |
| Catalog number | 93074169 |
| Power supply | 1 × 230 V, 50/60 Hz |
| Power consumption | 4-45 W |
| Maximum lift height | 6,0 m |
| Maximum flow rate | 3.5 m³/h |
| Energy efficiency | EEI ≤ 0.20 |
| Insulation class | F |
| Protection class | IP44 (for indoor use) |
| Maximum working pressure | 1.0 MPa (10 bar) |
| Medium temperature | -10°C to +110°C |
| Ambient temperature | up to 55°C |
| Minimum inlet pressure | 0.05 bar (75°C) / 0.5 bar (95°C) / 1.08 bar (110°C) |
| Noise level | < 25 dB(A) |
| Pump casing | Grey cast iron EN-GJL-150 |
| Impeller | PES composite (20-30% GF) |
| Shaft and bearings | Ceramic |
| Seals | EPDM |
| Fluid type | Pure water or mixtures with glycol (≤ 50%) |
| Hydraulic connections | Thread G 1½" |
| Installation length | 180 mm |
| Weight | 2,00 kg |
| Certifications | CE, VDE |
Technical data source: data sheet for ALPHA1 GO 25-60 180 (93074169).Link
FAQ - Frequently asked questions
- What modes of operation does the pump have? Proportional pressure, constant pressure and constant curve.
- Does the pump have dry-run protection? Yes, it automatically detects the lack of medium and stops operation.
- What are the maximum operating parameters? 6 m of head and 3.5 m³/h of flow.
- Can it be used in mixed systems? Yes, it is suitable for radiator, floor and mixed systems.
- What is the power supply? 230 V AC, 50/60 Hz.
- Is the pump quiet? Yes, it generates less than 25 dB(A).
- Is it compatible with apLication Grundfos GO? Yes, it can be managed through apLication GO RepLace.
- What are the connections? G 1½" (DN25) threads, length 180 mm.
- What are the materials of construction? Cast iron housing, composite impeller, ceramic shaft and bearings.
- Does the pump require maintenance? No, the sealless design is maintenance-free.
Summary
Grundfos ALPHA1 GO 25-60 180 is a modern, energy-efficient circulating pump for heating and cooling systems. With three operating modes, ceramic bearings and integrated electronic control, it provides high reliability, low energy consumption and easy operation in apLication of domestic and commercial applications.