Bomba circuladora DAB VS para agua caliente sanitaria, con cuerpo de bronce y caja de conexiones, vista en perspectiva
DAB

DAB VS bronze circulator pump for domestic hot water

Model
€288,09
/
Tax included. Shipping calculated at checkout.
  • 4 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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Bronze circulator pump for domestic hot water return

The DAB VS keeps hot water moving round the return loop so it comes out hot as soon as you open the tap. It has a bronze body, 150 mm between ports with 1½" threads, and delivers up to 6 m head and 3.7 m³ per hour. At Q-Tech we fit it in pre-assembled plant rooms and as a replacement pump.

Summary

TypeFixed-speed wet-rotor circulator pump
Brand and modelDAB VS 150 mm (four heads)
UseDomestic hot water return in closed pressurised or open-vented systems; also solar systems
Maximum head0.83 to 6 m depending on model
Flow0.6 to 3.7 m³ per hour
Compatible withClean water, free of solids and mineral oils
Power supplySingle-phase 230 V, 50 Hz; 35 to 78 W depending on model
Q-Tech installationFitted in a pre-assembled plant room or replaced on site by an Expert Technician

What is the DAB VS?

The DAB VS is a wet-rotor circulator pump with an asynchronous motor, designed for domestic hot water return. The hydraulic part is bronze, a material suited to drinking water. Each model runs at a fixed speed.

What problem does it solve?

When the cylinder or boiler is far from the taps, the water in the pipe cools and you have to run it until it comes out hot. That wastes water and time.

With a return loop and a bronze pump, hot water reaches the tap sooner and less is wasted. A cast-iron pump on drinking water corrodes and fails sooner.

Technical data

Maximum head0.83 to 6 m depending on model
Flow0.6 to 3.7 m³ per hour
Power input (P1)35 to 78 W depending on model
Liquid temperature−10 to +85 °C for domestic hot water (up to +110 °C for other uses)
Maximum working pressure10 bar (1,000 kPa)
Minimum inlet pressure1.5 m water column at 90 °C
Protection and insulationIP44 · class F
ConnectionG 1½" thread (DN25), 150 mm between ports
MaterialsBronze body, aluminium motor housing, technopolymer impeller, ceramic shaft on graphite bearings, stainless steel liners
MountingMotor shaft horizontal

Models and data by variant

ModelMax. headMax. powerEnergy classDAB codeNet weight
VS 8/150 M0.83 m35 WB601822172.6 kg
VS 16/150 M1.82 m41 WB601822162.6 kg
VS 35/150 M4.1 m55 WB601822152.6 kg
VS 65/150 M6 m78 WC601822132.6 kg

Compatibility and limits

  • Unions not included: order them separately to suit your pipework.
  • Clean, non-viscous water, free of solids and mineral oils.
  • Mount only with the motor shaft horizontal.
  • Not electronic: it always runs at the same speed. For lower consumption in the same size, choose the EVOSTA 2 SAN.

When this product is not the right choice

ProductWhen to choose itMax. head
DAB EVOSTA 2 SANYou want a low-consumption electronic pump in the same 150 mm size6.9 or 8 m
DAB VORTEX BWO 155 RA home with a short loop; you want a built-in thermostat or timer1.3 m

Frequently asked questions

Which model do I need?

It depends on the length and losses of the return loop. A home usually needs a low head; a building needs more. If you are unsure, we will help you choose.

Can it be used for heating?

DAB allows up to +110 °C for other uses, but it is designed for domestic hot water. For heating, the EVOSTA 2 is electronic and uses less power.

Are the unions included?

No. Unions are sold separately.

What is the delivery time?

It is in stock at our warehouse; if none were left, we would order it urgently and tell you the lead time.

Who should install it?

Qualified professionals must make the plumbing and electrical connections.

Q-Tech installation and support

Q-Tech fits and tests the pump in our workshop as part of a pre-assembled plant room, which arrives tested and ready to connect. To replace a pump in your system, book an on-site Expert Technician by the hour; if you are unsure which model fits, request a technical call. More equipment in DAB circulator pumps.

Documentation

Availability and lead times: this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.

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