Grundfos ALPHA1 GO 15-40 130

The ALPHA1 GO 15-40 130 represents Grundfos’ commitment to intelligent, energy-efficient pumping solutions. Designed specifically for heating systems in single-family homes and apartments, this circulator pump replaces older, inefficient models with modern AUTOADAPT technology. Its compact 130mm flange-to-flange length ensures easy drop-in replacement for most standard circulators.

Key Benefits

• Massive Energy Savings: Consumes as little as 6 watts – up to 80% less energy than traditional circulator pumps.

• AUTOADAPT Technology: The pump automatically adjusts its performance to match your system’s changing heating demands (radiators, underfloor heating, etc.).

• Plug-and-Play Installation: The 130mm port distance fits standard heating system piping with minimal modification.

• Silent Operation: Near-silent performance (<43 dB) ensures no disturbance in living areas.

Performance Details
The ALPHA1 GO delivers a maximum head of 4 meters (40 kPa) and a flow rate suitable for most residential zones. It operates across three selectable modes:

• AUTOADAPT: Optimal for variable pressure systems (radiators).

• Constant Pressure: Ideal for underfloor heating.

• Constant Curve: For troubleshooting or system flushing.

Applications & Usage

• Hot water heating systems (radiators)

• Underfloor heating circuits

• Domestic hot water recirculation (with timer kit)

• Small closed-loop hydronic systems

Durability & Reliability
Built with a corrosion-resistant stainless steel rotor can and a ceramic bearing system, the ALPHA1 GO is designed for a long service life. The pump features a dry-running protection and automatic de-airing function, preventing damage from trapped air bubbles during startup.

Customer Value
For NPF Store customers, this pump means lower utility bills, fewer service calls, and a warmer, more comfortable home. It pays for itself in energy savings within 12–18 months.

Key Features

• ✅ AUTOADAPT – Self-adjusting performance based on real-time system demand

• ✅ Energy Class A – Rated for ultra-low power consumption (6W to 34W)

• ✅ 130mm Flange Distance – Standard replacement size for older pumps

• ✅ LED User Interface – Clear color-coded status and alarm indicator

• ✅ Air Purge Function – Automatic venting during installation

• ✅ 3-Speed Manual Override – For technician troubleshooting

• ✅ Quiet Operation – <43 dB (quieter than a library)

• ✅ Compact Design – Fits in tight mechanical rooms

Technical Specifications