ESBE VRG141 4-way DZR brass rotary valve with manual knob, three-quarter view
ESBE VRG140 4-way valve front dimension drawing
ESBE VRG140 valve side dimension drawing with knob
ESBE VRG140 installation diagram between boiler and radiators

ESBE VRG140 Series 4-Way Rotary Mixing Valve in DZR Brass

Model
Regular price€128,00
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  • 4 in stock
  • Backordered, shipping soon

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  • 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.
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  • 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.
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  • 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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ESBE VRG140 4-way rotary mixing valve that keeps the boiler return temperature high

The ESBE VRG140 is a 4-way rotary valve in dezincification-resistant (DZR) brass that works on the double mixing principle in heating and cooling circuits from DN15 to DN50. At Q-Tech we integrate it with its actuator in the pre-assembled plant room, connected and tested in our workshop.

Summary

Type4-way rotary mixing valve
Brand and modelESBE VRG140 series, VRG141 internal thread version
UseHeating with boilers that need a warm return, radiators, underfloor heating and comfort cooling
SizesDN15 to DN50, Kvs from 2.5 to 40 m³ per hour
PrincipleDouble mixing: controls the flow temperature and raises the return temperature at the same time
Compatible withESBE ARA600 actuators and 90 series (with kit) and ESBE CRA, CRB, CRC, CRD, CRK and CRS controllers
Pressure and temperaturePN10; −10 to 110 °C continuous and 130 °C short-term
Q-Tech installationFitted with its actuator in the Q-Tech pre-assembled plant room

What is the ESBE VRG140?

The ESBE VRG140 is a 4-way rotary valve for hydronic circuits that controls the flow temperature and, at the same time, keeps the boiler return temperature high. Its rotor controls the flow at four points at once. It is fitted between the boiler and the heating circuit.

What problem does it solve?

Some boilers need warm return water to avoid condensation and corrosion. With a 3-way valve, the cold return from the circuit goes straight back to the boiler.

The VRG140 mixes twice: it sends the circuit the temperature it needs and returns warmer water to the boiler. ESBE states that this reduces the risk of corrosion and can extend boiler life, only where the boiler design requires it.

Technical data

Pressure classPN10 (working pressure 1 MPa)
Maximum differential pressure100 kPa
Close-off pressure100 kPa
Internal leakageBelow 1.0 % of flow
Operating torqueBelow 3 Nm from DN15 to DN32 and below 5 Nm for DN40 and DN50
Rangeability Kv to Kv minimum100
Media temperature−10 to 110 °C continuous; 130 °C short-term
MediaHeating water to VDI 2035; water with up to 50 % glycol or up to 28 % ethanol
ConnectionInternal thread Rp to EN 10226-1
MaterialsDZR brass body, abrasion-resistant brass sector, PPS composite shaft and bushing, EPDM O-rings
Operating angle90°
ConformityEuropean Pressure Equipment Directive (PED), article 4.3

Models and data by variant

ModelDNKvs (m³ per hour)ConnectionNet weightReference
VRG141 15-2.5152.5Rp ½0.40 kg11640100
VRG141 20-4204Rp ¾0.52 kg11640200
VRG141 25-102510Rp 10.80 kg11640400
VRG141 32-163216Rp 1¼1.08 kg11640500
VRG141 40-254025Rp 1½1.89 kg11641500
VRG141 50-405040Rp 22.55 kg11641700

Compatibility and limits

  • It is motorised with the ESBE ARA600 actuator (ESBE ARA600 3-point); the 90 series needs the VRG801 kit.
  • ESBE controllers with built-in actuator (CRA, CRB, CRC, CRD, CRK and CRS) mount on the valve, such as the ESBE CRA111.
  • The ESBE VRI100 insulation covers the valve from DN15 to DN40.
  • Maximum differential pressure of 100 kPa: above that, control loses accuracy.
  • For closed systems only, with heating water or water with glycol or ethanol in the proportions in the table.

When this product is not the right choice

  • If your heat source does not need a warm return (heat pump or condensing boiler), the ESBE VRG130 3-way valve is the usual choice.
  • To combine two heat sources in parallel or stratify a buffer tank, ESBE offers the VRB140 bivalent 4-way series.
  • For DN65 pipework or larger, with flanges, look for a cast-iron 4-way valve such as the ESBE 4F.

Frequently asked questions

How does it differ from the VRG130 3-way valve?

The VRG140 mixes twice and raises the boiler return temperature. The VRG130 mixes once and sends the circuit return back unheated.

Which model do I need?

It depends on the circuit flow rate. Send us the output and temperature difference and we will tell you the right Kvs.

Can it be motorised?

Yes. It takes the ESBE ARA600 actuator and ESBE controllers with built-in actuator; the 90 series needs the VRG801 kit.

Can it be used with glycol?

Yes, up to 50 % glycol or 28 % ethanol, according to ESBE.

What is the delivery time?

We hold it in stock in Málaga and dispatch it as soon as the order is confirmed.

Q-Tech installation and support

Q-Tech integrates the VRG140 and its actuator in the pre-assembled plant room: assembled, wired and tested in our workshop, it arrives ready to connect next to your boiler. You can book workshop pre-assembly, an on-site Expert Technician by the hour or a technical call to choose the model. See also our HVAC valves or message us on WhatsApp.

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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