Wilo TOP-Z circulator pump with threaded bronze body and thermal insulation, models 25/10, 30/7 and 30/10
Wilo TOP-Z 25/6 circulator pump with stainless steel body and threaded connections, side view
Wilo TOP-Z 40/7 circulator pump with flanged DN 40 grey cast iron body, side view

Wilo TOP-Z circulator pump for domestic hot water recirculation

Model
Regular price€988,82
/
Tax included. Shipping calculated at checkout.

  • 3 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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Wilo TOP-Z circulator pump for domestic hot water recirculation in buildings

The Wilo TOP-Z keeps domestic hot water moving through the whole building network, so it runs hot as soon as a tap opens. Q-Tech integrates it into pre-assembled plant rooms: it reaches your site mounted next to the cylinder, wired and tested in our workshop.

Summary

TypeGlandless circulator pump for domestic hot water (DHW) recirculation
Brand and modelWilo TOP-Z (25/6, 25/10, 30/7, 30/10 and 40/7)
UseApartment blocks, hotels, care homes, gyms and industry
Control3 manually selectable speeds
Water temperatureUp to 80 °C in continuous duty (25/6: up to 65 °C)
Compatible withDrinking water up to 20 °dH hardness (25/6: 18 °dH)
Power supply230 V single-phase; 400 V three-phase on the 30/7 400 V
Q-Tech installationIntegrated into your pre-assembled plant room or connected on-site by an Expert Technician

What is the Wilo TOP-Z?

The Wilo TOP-Z is a Wilo circulator pump for domestic hot water recirculation that runs at three selectable speeds and delivers 5.4 to 9.3 m of head. It sits on the DHW return, next to the cylinder or heat exchanger. Wilo supplies it with thermal insulation shells as standard.

What problem does it solve?

In a building with many outlets, water in the pipes cools down whenever nobody uses it. Without recirculation, every user waits and runs cold water down the drain before getting hot water at the tap. The Wilo TOP-Z returns that water to the cylinder continuously and keeps the network at temperature.

Wilo designs the TOP-Z for drinking water, with a bronze, stainless steel or grey cast iron body depending on the model. A pump that is too small leaves branches cold; one that is too large uses more electricity than needed.

Technical data

Pump typeGlandless, threaded connection (25/6 to 30/10) or flanged (40/7)
FluidDrinking water
Maximum water hardness3.57 mmol per litre (20 °dH); 3.21 mmol per litre (18 °dH) on the 25/6
Water temperature0 to 80 °C; up to 110 °C for 2 hours
Water temperature (25/6)Up to 65 °C; up to 80 °C for 2 hours
Ambient temperature0 to 40 °C
Maximum operating pressure10 bar
Protection ratingIPX4D
Motor insulation classH
ImpellerPPE-GF30 (glass-fibre reinforced plastic)
In the boxPump, insulation shells, gaskets for the threaded connection, washers for the flange bolts (40/7) and instructions

Models and data by variant

ModelPower supplyBodyConnectionPort-to-port lengthMax. headPower input P1Wilo reference
25/6 230 VSingle-phase, 230 VStainless steelG 1½ (Rp 1)180 mm6 m (nominal)85 to 200 W2045521
25/10 230 VSingle-phase, 230 VBronzeG 1½ (Rp 1)180 mm9.3 m150 to 335 W2061964
30/7 230 VSingle-phase, 230 VBronzeG 2 (Rp 1¼)180 mm5.5 m70 to 185 W2048340
30/7 400 VThree-phase, 400 VBronzeG 2 (Rp 1¼)180 mm5.4 m100 to 310 W2048341
30/10 230 VSingle-phase, 230 VBronzeG 2 (Rp 1¼)180 mm9.3 m150 to 335 W2059857
40/7 230 VSingle-phase, 230 VGrey cast ironDN 40 flange250 mm6.0 m175 to 340 W2046631

Compatibility and limits

  • Wilo designs the TOP-Z for DHW recirculation only; do not use it on heating or cooling circuits.
  • The 25/6 accepts water up to 65 °C in continuous duty; if your network runs hotter, choose the 25/10 or a larger model.
  • The 40/7 has a grey cast iron body: Wilo's manual asks you to comply with national drinking water regulations as well.
  • Pumps with a 180 W motor (25/10, 30/10 and 40/7) have a winding protection contact; Wilo specifies connecting it to an SK 602N or SK 622N tripping unit.
  • The 30/7 400 V needs a three-phase supply; Wilo offers an optional switching plug for three-phase 230 V.

When this product is not the right choice

  • For a single house, the Wilo Star-Z NOVA or the Wilo Star-Z covers small flows.
  • For a heating circuit, choose a heating circulator such as the Wilo Yonos MAXO.
  • If you want high-efficiency electronic control, Wilo suggests a Yonos PICO-Z or Stratos PICO-Z pump as the replacement for the 25/6.
  • For flows above 16 m³ per hour, look for a DN 50 to DN 80 TOP-Z or ask Q-Tech.

Frequently asked questions

Which Wilo TOP-Z model do I need?

It depends on the recirculation flow and the pressure loss of the DHW return. Wilo's curves for each model give the duty point, and a Q-Tech Expert Technician can work it out with you on a technical call.

Can I use the Wilo TOP-Z on a heating circuit?

No. Wilo designs it only for domestic hot water recirculation systems. For heating, choose a circulator from the Yonos range.

What is the difference between the 30/7 230 V and the 30/7 400 V?

The power supply and the motor. The 30/7 230 V is single-phase with P1 up to 185 W; the 30/7 400 V is three-phase, with P1 up to 310 W and a direction-of-rotation indicator.

Is the 40/7 suitable for drinking water?

Yes. Wilo designs it for DHW recirculation; because it is grey cast iron, its manual also asks you to comply with national drinking water regulations.

What is the delivery time?

Made to order: we confirm the lead time before preparing your order.

What is in the box?

The pump, the thermal insulation shells, the connection gaskets and Wilo's instructions. The 40/7 also includes the washers for the flange bolts.

Q-Tech installation and support

In a Q-Tech pre-assembled plant room, the Wilo TOP-Z leaves our workshop mounted on the DHW return, wired, set up and tested. We carry out safety, operation and pressure tests. The plant room arrives ready to connect: the final connection is made by your site installer or by Q-Tech, from one working day depending on the room type and size. You receive the documentation with photos and a report. See how it works on Pre-Montaje Avanzado and in the workshop pre-assembly service.

If another company installed the pump or you are replacing one, first book the verification visit with an on-site hourly Expert Technician. To choose a model, book a technical call or message us on WhatsApp. See more models in recirculation pumps.

Documentation

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