Grundfos ALPHA2 GO 25 180 mm circulator pump — front view
Grundfos ALPHA2 GO 25 130 mm circulator pump — front view
Grundfos ALPHA2 GO 32 180 mm circulator pump — front view
Grundfos ALPHA2 GO 25 180 mm circulator pump — side view
Grundfos ALPHA2 GO 25 180 mm circulator pump — front view
Grundfos ALPHA2 GO 25 130 mm circulator pump — front view
Grundfos ALPHA2 GO 32 180 mm circulator pump — front view
Grundfos ALPHA2 GO 25 180 mm circulator pump — side view
Grundfos

Grundfos ALPHA2 GO circulator pump with Bluetooth and AUTOADAPT

Modelo
€663,93 €404,74
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Shipping calculated at checkout.
  • 2 in stock
  • Backordered, shipping soon

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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High-efficiency circulator pump you set up from your phone via Bluetooth

The Grundfos ALPHA2 GO is a high-efficiency circulator pump for heating and air-conditioning systems. It has built-in Bluetooth: with the Grundfos GO app, a setup wizard helps you choose the right control mode and setpoint. Available in six threaded models with a maximum head of 4 or 6 m.

Summary

UseRadiator or underfloor heating and air conditioning
SetupGrundfos GO app via built-in Bluetooth
Automatic controlAUTOADAPT for radiators and for underfloor heating
Models25-40, 25-60, 32-40 and 32-60, with 130 or 180 mm port-to-port length
Power input3 to 21 W (-40 models) and 3 to 37 W (-60 models)
Energy efficiency index (EEI)0.16 (-40 models) and 0.18 (-60 models)
Maximum pressure10 bar (PN 10)
Power supplySingle-phase 220 to 240 V
Q-Tech installationTécnico Experto on-site by the hour

What is the Grundfos ALPHA2 GO?

The Grundfos ALPHA2 GO is an electronic circulator pump that moves water around heating and cooling circuits. Grundfos specifies it for domestic heating, heating and air conditioning in commercial buildings, and district heating.

The pump display shows the current flow, head and power consumption. Through the Grundfos GO app you also get trend data, an event log with suggested fixes and software updates that add new functions.

What problem does it solve?

A circulator with the wrong setting can use more energy than needed or leave rooms underheated. On the ALPHA2 GO, the app wizard asks about your system and sets the control mode. The AUTOADAPT function adjusts the duty point on its own, with no manual setpoint selection.

It also helps with maintenance. With air detection enabled, the pump runs in pulses to push air towards the nearest air vent. Dry-running protection stops it from operating without water. The non-magnetic shaft and bearings reduce the risk of blockage from magnetite or limescale, and if it does block, the motor tries to start at maximum torque.

Technical data

BrandGrundfos
RangeALPHA2 GO
TypeElectronic circulator pump with built-in frequency converter
Voltage1 × 220–240 V, 50 or 60 Hz
Minimum power input (P1)3 W
Enclosure classIP44
Insulation classF
Liquid temperature2 to 110 °C
Ambient temperature0 to 55 °C
Maximum operating pressure10 bar (PN 10)
Pump housingCast iron EN-GJL-150
ConnectionG thread to ISO 228-1
ApprovalsCE, VDE, EAC, SEPRO and AAA
Thermal protectionElectronic

Models and data by variant

ModelThreadPort to portMax. headMax. P1Product no.EAN
25-40 130G 1½130 mm4 m21 W930742265715467404531
25-40 180G 1½180 mm4 m21 W930742255715467404524
25-60 130G 1½130 mm6 m37 W930742185715467404456
25-60 180G 1½180 mm6 m37 W930742165715467404432
32-40 180G 2180 mm4 m21 W930742225715467404494
32-60 180G 2180 mm6 m37 W930742145715467404418

Compatibility and limits

  • Heating circuits with radiators or underfloor heating, and air-conditioning circuits.
  • Grundfos GO app via Bluetooth for setup, air detection, trend data and event log.
  • The app lets you check compatibility with integrated and standalone circulators and replicate their curve.
  • Liquid temperature 2 to 110 °C and maximum pressure 10 bar.
  • Enclosure class IP44 and ambient temperature 0 to 55 °C.
  • G 1½ thread on 25 models and G 2 on 32 models: check the unions on your system.

When this product is not the right choice

  • Domestic hot water (DHW) recirculation: Grundfos specifies the ALPHA2 GO for heating and air conditioning, and its housing is cast iron. For DHW see the Grundfos COMFORT PM or the Grundfos UP-N.
  • Systems that need more than 6 m of head or a higher flow: see the Grundfos MAGNA1.
  • If you need assisted hydraulic balancing of the system: see the Grundfos ALPHA3.
  • If you want a simple circulator without Bluetooth: see the Grundfos ALPHA1 L.

Frequently asked questions

Which model do I need?

Check three things on your current pump: thread, port-to-port length and head. The 25 models have a G 1½ thread and the 32 models a G 2 thread. 130 or 180 is the port-to-port length in millimetres. 40 or 60 means 4 or 6 m of maximum head.

Is it suitable for underfloor heating?

Yes. The AUTOADAPT function is available for both radiators and underfloor heating, and sets the duty point without manual input.

Do I have to use the Grundfos GO app?

Grundfos presents the app as a setup wizard and access to additional functions: air detection, trend data, event log and software updates. The pump display shows flow, head and power consumption.

Can it replace the integrated pump in my boiler?

Grundfos states that the Grundfos GO app checks compatibility with integrated and standalone circulators and replicates their curve. Before ordering, send us the boiler model and a photo of your current pump's rating plate on WhatsApp.

Is it suitable for domestic hot water?

That is not the use Grundfos specifies: the ALPHA2 GO is designed for heating and air conditioning, and its housing is cast iron. For DHW, see the COMFORT PM and UP-N ranges.

What is the difference from the ALPHA2?

The ALPHA2 GO has built-in Bluetooth and is set up with the Grundfos GO app. You can compare it with the Grundfos ALPHA2 in our shop.

What is the delivery time?

It is supplied to order from our distributor. We confirm the delivery time before dispatch.

Q-Tech installation and support

Q-Tech replaces and integrates circulators in plant rooms and heating circuits in Málaga. You can book a Técnico Experto on-site by the hour or get advice through a Técnico Experto technical call. To choose a model, message us on WhatsApp at +34 690 95 38 39.

Documentation

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