Válvula mezcladora termostática ESBE serie VTA320 - Q-Tech ®
Válvula mezcladora termostática ESBE serie VTA320 - Q-Tech ®
Válvula mezcladora termostática ESBE serie VTA320 - Q-Tech ®
Válvula mezcladora termostática ESBE serie VTA320 - Q-Tech ®
Válvula mezcladora termostática ESBE serie VTA320 - Q-Tech ®

ESBE VTA320 series thermostatic mixing valve

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Regular price€101,48
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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 ESBE VTA320 Series Thermostatic Mixing Valve is a robust and versatile solution designed for precise temperature regulation in a variety of applications. It offers high flow capacity and consistent performance, making it the ideal choice for Domestic Hot Water (DHW) control and small-scale underfloor heating circuit management.

The VTA320 Series is the preferred choice when a mandatory anti-scald safety function is required in the DHW supply line.

✨ Key Benefits: Control, Flow, and Safety (E-E-A-T)

ESBE engineering ensures high flow capacity and long-term reliability.

  • Guaranteed Anti-Scald Safety: Its safety function automatically cuts off the hot water supply in the event of a cold water supply failure or interruption. This protects the end user from accidental burns.

  • Versatile Temperature Regulation: Allows for a precise regulation range of 35 to 60°C, ideal for complying with legionella regulations and comfort requirements.

  • High Flow Capacity: Designed to provide optimized flow, making it compatible with DHW systems with or without Hot Water Circulation (HWC).

  • Easy Installation and Maintenance: The availability of connection kits with adapters and check valves (optional) simplifies assembly and any future service.

  • Universal Compatibility: Suitable for DHW, closed systems, and underfloor heating circuits (considering flow and temperature range).

⚙️ Technical Features and Applications

The VTA320 is characterized by its functional design and the quality of its materials.

Main Functionality

  • Anti-Scald Function: Maximum safety in the DHW line, regardless of temperature control devices installed at the taps.
  • Asymmetric Flow Model: Optimized for efficient and stable flow mixing, ensuring a uniform outlet temperature.

  • Compatible Media: Fresh/potable water, closed systems, and water with antifreeze (glycol up to 50%).

Connection Options

The wide range of versions allows for perfect adaptation to any installation:

  • 1/2" internal threads (female)
  • 3/4" internal threads (female)
  • 1" external thread (male)
  • 15mm compression fitting
  • 18mm compression fitting
  • 22mm compression fitting

📊 Technical Specifications

Feature Technical Detail
Series VTA320
Type Thermostatic Mixing Valve
Regulation Range 35 to 60°C
Safety Function Anti-scald (Hot water shut-off upon cold water failure)
Applications DHW (with/without HWC), Underfloor Heating (small-scale)
Flow Design Asymmetric
Supply With top cover (unless otherwise indicated)

Do you need to size the valve for your underfloor heating project?

To ensure maximum efficiency, sizing the VTA320 is crucial. Contact our Technical Support Service for professionals. We can help you select the Kvs and the most suitable connection for your system.

❓ Frequently Asked Questions (FAQ)

1. What is the main factor to consider if I use the VTA320 for underfloor heating?

Although the VTA320 is compatible with underfloor heating, the most important factor to consider is the temperature range (35-60°C) and the required flow (Kvs). Ensure that the temperature range matches your underfloor heating needs and that the flow is sufficient, as larger systems may require other ESBE series.

2. How does the anti-scald safety function work?

The internal thermostatic mechanism detects the loss of pressure or flow in the cold water line. Upon sensing this anomaly, it reacts immediately by closing the hot water inlet port, preventing water from being supplied at a dangerously high temperature.

3. Is the VTA320 suitable for potable water?

Yes, the VTA320 series is designed and manufactured with materials that make it fully suitable for use with fresh and potable water, as well as closed systems and water with glycol.

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