Bomba circuladora ALPHA2 Grundfos calefaccion - vista frontal 130 - Q-Tech® 2026
Bomba circuladora ALPHA2 Grundfos calefaccion - vista frontal 180 - Q-Tech® 2026

Grundfos ALPHA2 circulator pump

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Regular price €862,58 Sale price€310,34
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At Q-TECH, we apply the same clear rules for everyone: the law protects you, and when applied correctly, it protects us as well. By processing your purchase, you accept our General Terms and Conditions of Sale. If you are purchasing as a consumer (B2C), nothing stated herein limits the rights granted to you by mandatory law (RDL 1/2007, TRLGDCU): the 3-year legal warranty of conformity and the right of withdrawal under the terms and with the exceptions legally provided, which are detailed below. References to "B2B" apply only to businesses and professionals.

Your guarantees

  • Rights intact: 14 days of withdrawal from receipt for most products—subject to the legal exceptions you will see below, such as goods made to your specifications—and a 3-year legal warranty of conformity, under the terms of the TRLGDCU.
  • Conformity with the description: we guarantee that the equipment will correspond to the published technical description and what one could reasonably expect from it (arts. 115 et seq. TRLGDCU). Images and videos are for guidance only: the manufacturer may supply a more recent revision of the product or introduce minor aesthetic, packaging, or firmware changes, without this constituting a lack of conformity as long as the described characteristics and performance are maintained.
  • Traceability that also protects you: we document the condition, serial number, and seal of each piece of equipment upon shipment, and we video-record the opening of returns; this is your proof of the condition in which the goods were delivered.

Responsible use and your part

  • If you are thinking of returning it, keep it as you received it: without installing or activating it, with its seals, accessories, and packaging intact. This is how to ensure a full refund, without deductions.
  • Handling that exceeds inspection reduces value: handling the equipment beyond what is necessary to verify its nature and operation may result in a real, assessed, and case-by-case justified deduction (art. 108.2 TRLGDCU), never a fixed percentage. In particular: activating or registering the serial number, linking it to a manufacturer's account or app, circulating water through hydraulic equipment, unsealing probes, or installing software or consumables. Initial inspection of the product does not lead to a deduction.
  • The same item must be returned: withdrawal requires returning the supplied unit. Different equipment, or equipment with prior use, age, or wear prior to purchase, does not constitute a valid withdrawal.
  • Installation and cybersecurity, shared responsibility: this is technical hardware; you are responsible for correct installation, credentials, patches, and backups, while we deliver a compliant product. Q-TECH is not liable for damages resulting from poor installation, incorrect configuration, or omission of patches by the customer or third parties (in B2C, without prejudice to the legal warranty and liability for intent or negligence, arts. 86 and 130 TRLGDCU).
  • Delivery of bulky goods: delivery is made to the curb. B2C: transport risk is ours until physical delivery (art. 66 ter); we recommend noting visible damages on the delivery note and notifying us of breakages within 24-48 hours with photographs to activate the insurance. B2B: inspection and notation on the delivery note are mandatory; hidden damages must be reported within 24 hours (art. 366 CCom). Unjustified rejection or incorrect shipping information will entail the actual outbound and return costs (approx. €85-550 for heavy machinery).

Made to your measure (Advanced Pre-Assembly)

  • If your order includes equipment, racks, hydraulic assemblies, or technical rooms made or configured according to your specifications (permanent joints, custom cuts or wiring, parameterization, pressure testing), these are custom goods without the right of withdrawal from the conclusion of the contract (art. 103.c TRLGDCU; CJEU Case C-529/19), which is informed before purchasing and documented in the signed Order Note. A test you request without permanent modification retains your right of withdrawal, with only the actual loss of value caused by that test being deducted. Would you prefer to receive it tested, configured, and ready to connect, without assuming these risks? Contract our Advanced Pre-Assembly or the prior technical audit.

If you are purchasing as a business or professional (B2B)

  • The transaction is governed by the Commercial Code: firm sale, without the right of withdrawal; notification of defects within 4 days (apparent) / 30 days (hidden), arts. 336 and 342. Q-TECH acts as a distributor and excludes indirect damages, loss of profit, and data loss, limited to the price of the equipment, without prejudice to the manufacturer's commercial warranty.

Product warnings v1.0 · June 2026. Information summary; the complete and binding conditions are those published at q-tech.es.

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The Intelligent Circulator: Leading Efficiency and Assisted Balancing

The Grundfos ALPHA2 circulator pump sets a new standard in efficiency and reliability within heating and air conditioning systems. Designed for professionals and users who demand maximum performance, the ALPHA2 not only offers the best energy efficiency on the market, but also revolutionizes the hydraulic balancing process with its innovative assisted system.

This model is the perfect choice for new installations or for modernizing existing systems, ensuring optimal operation under the most demanding conditions.

🚀 The ALPHA2 Ecosystem: Simple and Precise Hydraulic Balancing

The main advantage of the ALPHA2 lies in its ability to work in conjunction with the ALPHA Reader and the Grundfos GO Balance app. This integration transforms traditional, complex hydraulic balancing into a fast, guided, and documented process.

1. Alpha Reader: The Communication Link

The ALPHA Reader is a compact (pocket-sized) accessory that attaches magnetically to the front of the pump.

  • Function: Reads the pump's performance signal in real time.

  • Connectivity: Communicates via Bluetooth with the GO Balance app during the calibration process.

  • Portability: Once the job is finished, the installer can remove it and reuse it for the next installation.

2. Grundfos GO Balance: Your Mobile Balancing Guide

The Grundfos GO Balance app is a free mobile platform for installers, designed to guide the balancing process step-by-step.

  • Guaranteed Precision: Allows for precise hydraulic balancing in two-pipe radiator systems or underfloor heating systems.

  • Time Saving: Minimizes adjustment times, reducing installation costs.

  • Technical Documentation: Automatically generates technical reports of the balancing performed, adding value and professionalism to the service.

✅ Performance and Exclusive Features

The ALPHA2 circulator pump guarantees lasting reliability and intelligent energy management in any system.

  • Patented AUTOADAPT: Automatically adjusts the pump's duty point to the system's optimum, in both radiator and underfloor heating modes, without constant manual intervention.
  • Powerful Start: Restart function that applies the highest starting torque on the market, helping to unblock the pump and preventing failures due to deposits.
  • Advanced Protection: Includes integrated dry-running protection during start-up and normal operation.
  • Leading Efficiency: Unrivaled energy rating in its category, which translates into significant savings on electricity costs.
  • Acoustic Comfort: Low-noise operation.

🎯 Suitable for the Following Systems

The versatility of the ALPHA2 circulator makes it ideal for:

  • Radiator systems (two-pipe and one-pipe).

  • Underfloor heating systems.

  • Domestic hot water recirculation (DHW).

  • Air conditioning systems with liquid temperatures equal to or above 2ºC.

🛠️ Technical Specifications

Technical Feature Detail
Motor Technology Permanent magnet / High-efficiency canned rotor
Control Modes AUTOADAPT, Proportional Pressure (PP), Constant Pressure (CP), Fixed Speed
Materials Stainless steel/Composite rotor, Cast iron pump housing (cataphoretic coating)
Insulation Kit Included as standard (for heating)
Connection Supplied without fittings
Liquid Temperature Minimum 2ºC (depending on model)

❓ Frequently Asked Questions (FAQ)

Does the ALPHA2's AUTOADAPT function require initial manual configuration?

No. The patented AUTOADAPT function detects and continuously adapts to the requirements of the heating system. This allows it to automatically find and maintain the optimal duty point without the need for constant manual adjustments, maximizing efficiency.

What is exactly included in the "system/kit" for hydraulic balancing?

The complete system for balancing includes the ALPHA2 circulator pump, the ALPHA Reader accessory (which must be purchased separately if the complete kit is not purchased), and the free download of the Grundfos GO Balance app for your mobile device.

Can the ALPHA2 prevent pump blockage after a period of inactivity?

Yes. Thanks to its powerful restart function, the ALPHA2 applies the highest starting torque on the market. This feature is specifically designed to release the rotor from possible blockages caused by deposits or sediment, ensuring continuous and reliable operation.


📞 Specialized Technical Support

If you need detailed technical assistance, compatibility validation for complex systems, or advice on the balancing process with GO Balance, our team of experts is at your disposal. Contact our technical support service at 952972464.

Video of the Grundfos ALPHA2 circulator pump:

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