Regulador Motor ESBE Serie CRA110 para válvulas VRG/VRB - Q-Tech ®

ESBE CRA111 Actuator and Controller (CRA110 Series) for Constant Flow Temperature

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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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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.
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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.

🚀 Advanced and Automated Control for ESBE Mixing Valves

The ESBE CRA111 is a compact unit that combines a 6Nm rotary actuator and a constant temperature controller. This device is designed to provide precise and automated flow control in heating systems, specifically when it is necessary to maintain a stable (constant) supply temperature.

Its use is essential in applications for underfloor heating, return temperature control, or domestic hot water (DHW) circulation circuits, as it adjusts the position of the mixing valve (VRG/VRB) in real time to compensate for fluctuations in the primary system. Adjustment is simple and intuitive thanks to its interface with a display and joystick.

✨ E-E-A-T and Benefits: Guaranteed Temperature Control

The integration of the CRA111 actuator with ESBE valves ensures superior control Experience and maximum Trust in energy management.

  • Constant Temperature Control: Maintains the flow temperature exactly at the desired set point, which is essential for the safety and comfort of underfloor heating.
  • Wide Operating Range: Adjustable range from 5ºC to 95ºC, covering cooling, as well as low and high-temperature heating applications.
  • Plug-and-Play Installation: Includes the necessary adapter kits for easy, direct mounting on ESBE rotary mixing valves (VRG/VRB and up to DN50).
  • Precision Sensor Included: Comes with a flow pipe sensor and a 1.5m cable, ensuring accurate measurement at the critical point of the circuit.
  • Voltage Options: Available in CRA111 (230 V AC) and CRA112 (24 V AC) models to adapt to different electrical installation requirements.

🛠️ Detailed Technical Specifications (Data Sheet)

This table distinguishes the critical characteristics of the CRA110 series.

Feature Technical Detail
Function Integrated Rotary Actuator and Controller
Nominal Torque 6Nm
Running Time 30s at maximum speed (for 90º)
Valve Compatibility ESBE Rotary Mixing Valves VRG, VRB up to DN50
Adjustable Temperature Range 5ºC to 95ºC
Operating Ambient Temperature -5ºC to 55ºC
Protection Degree IP41 (Protected against solid objects >1 mm and vertical dripping)
Sensor Included Flow pipe sensor with 1.5m cable
Power Consumption 230 V AC: 10VA / 24 V AC: 3 VA

Voltage Models Available (Select Your Option):

  • CRA111: 230V AC (Includes adapter/transformer)

  • CRA112: 24V AC


❓ Technical Frequently Asked Questions (FAQ)

💡 What is the main application of the CRA111 constant temperature control in underfloor heating?

In underfloor heating, constant control is vital to prevent surface overheating, protecting materials (parquet, tiles) and ensuring maximum comfort. The CRA111 regulates the water mixture so that the supply flow remains exactly at the design temperature (e.g., 35ºC).

💡 How does the 6Nm torque affect the choice of valve?

The 6Nm torque is sufficient to rotate most ESBE VRG and VRB series mixing valves up to a nominal diameter (DN) of 50mm. For larger valves or high differential pressure systems, an actuator with higher torque should be considered.

💡 Is it necessary to insulate the included flow pipe sensor?

Yes, it is essential. For the CRA111 to maintain reliable accuracy and temperature control, the flow sensor must measure only the fluid temperature. The sensor must be carefully insulated from the ambient temperature to prevent false readings that could lead to incorrect valve regulation.

📞 Technical Support and Actuator Sizing

If you need to verify compatibility between the CRA111 torque and your existing mixing valve, or if you have questions about the correct installation and insulation of the sensor, contact our technical support team. Ensure an installation with the Authority and Experience of an expert.

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