HVAC Valves and Actuators
A variety of versatile Heating, Ventilation and Air Conditioning valves and actuators are available from V-Flow Solutions. The range includes the highly versatile Comparato Sintesi actuators and valves, alongside the Diamant actuator series, which has a proven track record of reliable, high-performance operation in HVAC installations worldwide.
For applications requiring larger valve sizes and higher torque outputs, the Universal, and its smaller form, the Compact, offer a reliable and high-performing solution for a wide range of HVAC actuator duties.
Together, these actuated valves deliver flexible, durable, and well-engineered solutions suitable for a broad spectrum of HVAC system requirements.
For more information on our range of HVAC valves and actuators, call our technical department at 01234 855888 or email us at sales@v-flowsolutions.co.uk.
UK Mainland Shipping Options:
- Flat Rate - 1-2 Day: £15.00
- Before Noon - Next Day: £27.50
- Free Delivery - Available on orders over £200
Orders received after 3:30pm may not be dispatched on the day of receipt.
Actuated Valves for HVAC
DTCV and eRTCV
Actuated ball valves such as the DTCV (for electronic temperature differential control and energy monitoring) and eRTCV (for electronic return temperature control) offer solutions in maximising efficiency in HVAC systems, as well as industrial heating and cooling applications.
Sintesi
Featuring a robust brass ball valve combined with the highly adaptable Sintesi actuator, the Comparato Sintesi range of actuated ball valves provides a compact and efficient solution for reliable 2-way and 3-way control in HVAC applications. The Sintesi range of actuated ball valves offers an effective solution where efficiency in space, performance, and system integration is a priority.
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DTCV G1/2″ – G1½” Valve for Temperature Differential Control
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eRTCV G1/2″ – G2″ Valve for Electronic Return Temperature Control
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SR2221BA 230V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £136.26
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SR2221U 230V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £103.32
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SS2221B 230V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £107.33
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SS2221BA 230V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £135.52
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SY2221B 230V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £114.45
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SR2421BA 24V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £138.80
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SR2421U 24V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £103.96
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SS2421B 24V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £107.34
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SS2421BA 24V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £119.61
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SY2421B 24V AC Sintesi Actuated Ball Valves (1/2″, 3/4″, 1″)
From £109.67
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Actuators - stand-alone units
VF Electric Actuators (J4C) from V-Flow Solutions are highly versatile and reliable actuators.
Capable of torque outputs ranging from 20 Nm on the smallest model up to 300 Nm on the largest model (the VF-2+S), the VF range is a great option for a wide range of valve actuation applications from the control of ball valves starting at ¼” to the control of very large butterfly valves that require high amounts of torque to actuate.
VF actuators are housed in an IP67 weatherproof Polyamide housing.
The range offers an impressive list of standard features:
- Protection against over-torque and condensation
- Corrosion resistance
- Electronic torque limiter preventing damage to actuator is max torque is exceeded
- Ability to change standard on/off function with easy to install conversion kits
- RGB LED light to indicate the user on the state and mode of the actuator
Options
- Easy to install battery failsafe (can be set to normally open or normally closed)
- Digital Positioning System (DPS) Modulating function conversion kit available
- 24V-240V AC/DC power options available (optional 12v DC)
- Options for 180°-270° of rotation
| Manual |
Torque | 20 – 300 Nm |
Speed of Operation (90°) | 10 – 58 seconds |
Power Supply | 12v-240v AC/DC |
| Model Number (Operating Speed – 90° +/-10%) | Operating Torque | Maximum Torque Break |
| VF-0S (10s) | 20 Nm | 25 Nm |
| VF-05S (10s) | 35 Nm | 38 Nm |
| VF-1S (13s) | 55 Nm | 60 Nm |
| VF-15S (29s) | 85 Nm | 90 Nm |
| VF-2S (34s) | 140 Nm | 170 Nm |
| VF-2+S (58s) | 300 Nm | 350 Nm |
For more specification on the VF Range and information on actuated valve packages available for the VF actuators, view the VF Electric Actuators page.
Alternatively, call us at 01234 855888 or email sales@v-flowsolutions.co.uk and our technical team can quote you with the appropriate actuator for your requirements.
| VF Actuators |
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J4C B20 / 20 Nm 10 S 12V AC/DC [F03/04/05] IP67 Cover (VS-0S12)
From £215.03
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J4C S20 / 20 Nm 10 S [F03/04/05] + Blue IP67 Cover (VF-0S)
From £236.30
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J4C S35 / 35 Nm 10 S [F03/04/05] + Blue IP67 Cover (VF-05S)
From £306.22
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J4C S55 / 55 Nm 13 S [F05/F07] + Blue IP67 Cover (VF-1S)
From £355.39
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J4C S85 / 85 Nm 29 S [F05/F07] + Blue IP67 Cover (VF-15S)
From £487.26
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20 Nm / 10 Seconds – J4C S20 (VF-0S) Electric Actuator
£236.30
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35 Nm / 10 Seconds – J4C S35 (VF-05S) Electric Actuator
£306.22
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55 Nm / 13 Seconds – J4C S55 (VF-1S) Electric Actuator
£355.39
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85 Nm / 29 Seconds – J4C S85 (VF-15S) Electric Actuator
£487.26
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![J4C B20 / 20 Nm 10 S 12V AC/DC [F03/04/05] IP67 Cover (VS-0S12)](https://v-flowsolutions.co.uk/wp-content/uploads/2025/03/VF-0S-J4C-S20-Actuator-Product-Image-2-500x500.png)
![J4C S20 / 20 Nm 10 S [F03/04/05] + Blue IP67 Cover (VF-0S)](https://v-flowsolutions.co.uk/wp-content/uploads/2025/03/VF-0S-J4C-S20-Actuator-Product-Image-1-500x500.png)
![J4C S35 / 35 Nm 10 S [F03/04/05] + Blue IP67 Cover (VF-05S)](https://v-flowsolutions.co.uk/wp-content/uploads/2025/04/VF-05S-J4C-S35-Actuator-Product-Image-1-500x500.png)
![J4C S55 / 55 Nm 13 S [F05/F07] + Blue IP67 Cover (VF-1S)](https://v-flowsolutions.co.uk/wp-content/uploads/2025/04/VF-1S-J4C-S55-Actuator-Product-Image-1-500x500.png)
![J4C S85 / 85 Nm 29 S [F05/F07] + Blue IP67 Cover (VF-15S)](https://v-flowsolutions.co.uk/wp-content/uploads/2025/04/VF-15S-J4C-S85-Actuator-Product-Image-1-500x500.png)
Comparato Sintesi Electric Actuators
Comparato Sintesi electric actuators are used for a wide range of light industrial applications as well as HVAC, heating zone control, Domestic Hot Water (DHW) and household automation systems.
- The range features actuators for 2-point and 3-point electrical control as well as switchable ‘all in one’ actuators capable of both 2-point and 3-point control
- Options for proportional control (0-20mA/4-20mA or 0-10V/2-10V control) are available on-request with the Sintesi Smart range
- Modbus communication is available on-request with the Sintesi Smart – Modbus actuator
| Torque | 5 or 8 Nm |
| Speed of Operation (90°) | Standard = 35 seconds Fast = 15 seconds Slow = 120 seconds |
| Power Supply | 12v DC, 24v AC/DC, 110v AC, 230v AC |
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RFSR2221BQ 230V AC [2 point] HIU Servo Control Motor SR2221BA
£135.00
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RFSS2221B 230V AC [3 point] HIU Servo Control Motor (DHW/CH)
£119.00
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RFSS2221BQ 230V AC [3 point] HIU Servo Control Motor (DHW/CH)
£139.25
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SR2221BA 230V AC [2 point] 5 Nm 15 second Sintesi actuator
From £136.26
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SR2221U 230V AC [2 point] 8 Nm 45 second Sintesi actuator
From £103.32
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SS2221B 230V AC [3 point] 8 Nm 35 second Sintesi actuator
From £107.33
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SS2221BA 230V AC [3 point] 5 Nm 15 second Sintesi actuator
From £135.52
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SY2221B 230V AC [2/3 point] 8 Nm 35 second Sintesi actuator
From £114.45
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SR2421BA 24V AC [2 point] 5 Nm 15 second Sintesi actuator
From £138.80
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SR2421U 24V AC [2 point] 8 Nm 45 second Sintesi actuator
From £103.96
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SS2421B 24V AC [3 point] 8 Nm 35 second Sintesi actuator
From £107.34
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SS2421BA 24V AC [3 point] 5 Nm 15 second Sintesi actuator
From £119.61
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SY2421B 24V AC [2/3 point] 8 Nm 35 second Sintesi actuator
From £109.67
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![RFSR2221BQ 230V AC [2 point] HIU Servo Control Motor SR2221BA](https://v-flowsolutions.co.uk/wp-content/uploads/2024/07/Sintesi-Front-View-500x500.png)
![RFSS2221B 230V AC [3 point] HIU Servo Control Motor (DHW/CH)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/09/Sintesi-Top-View-500x500.png)
![RFSS2221BQ 230V AC [3 point] HIU Servo Control Motor (DHW/CH)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/07/Sintesi-RFSS2221BQ-500x500.png)
![SR2221U 230V AC [2 point] 8 Nm 45 second Sintesi actuator](https://v-flowsolutions.co.uk/wp-content/uploads/2024/07/Sintesi-SR2221U-2-500x500.png)
![SS2221BA 230V AC [3 point] 5 Nm 15 second Sintesi actuator](https://v-flowsolutions.co.uk/wp-content/uploads/2024/07/Sintesi-SS2221BA-500x500.png)
![SY2221B 230V AC [2/3 point] 8 Nm 35 second Sintesi actuator](https://v-flowsolutions.co.uk/wp-content/uploads/2024/07/Sintesi-SY2221B-500x500.png)
![SR2421BA 24V AC [2 point] 5 Nm 15 second Sintesi actuator](https://v-flowsolutions.co.uk/wp-content/uploads/2024/07/Sintesi-SR2221U-500x500.png)
Diamant Pro Electric Actuators
Comparato Diamant Pro Electric Actuators have a proven track record for durability and reliable performance in a wide range of applications from heavy industry, food and beverage, HVAC, compressed air, water treatment, nautical sector, chemical industry, medical sector and many more.
- Available with AC or AC/DC power supply
- IP67 Enclosure
- Capable of both 2-point and 3-point control
- Available with 2x feedback auxiliary micro switches
- Operating Speed: AC – 35 seconds / DC – 12 seconds (other speed options listed below are available on request*)
Other optional accessories available on request include manual override (AC only), anti-condensation heater, fail safe super-capacitor, spacers for insulation, waterproof IP68 enclosure (AC only) and the SMART system (WIFI configurable).
Modulating, Temperature Control, shut-off, diverting and mixing valves are available, view the Diamant Range for full specifications.
*High speed actuators have reduced torque output. Call or email our technical department for more information or assistance on your enquiry.
| Diamant Range |
| Torque | 11 Nm |
| Speed of Operation (90°) | AC – 4 seconds 12 seconds 35 seconds 106 seconds 320 seconds DC – 1 second 3 seconds 5 seconds 8 seconds 12 seconds 30 seconds |
| Power Supply | 24v AC, 110v AC, 230v AC12v DC, 24v DC |
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11mm – Diamant 24v DC [F03/F05 x 11mm] 12 Sec (DY242PCF)
£194.45
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14mm – Diamant 24v DC [F03/F05 x 14mm] 12 Sec (DY242PCFQ14)
£183.31
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Diamant 230v AC [14mm] 35s 11Nm 2x Aux + Override (DY222F2AQ14)
£204.25
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Diamant 230v AC [F03/F05 11mm] 35S 11Nm 2x Aux (DY222F2)
£207.85
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![11mm - Diamant 24v DC [F03/F05 x 11mm] 12 Sec (DY242PCF)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/08/DY242PCF-image-500x500.png)
![Diamant 230v AC [14mm] 35s 11Nm 2x Aux + Override (DY222F2AQ14)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/08/Diamant-AC-Actuator-Product-2-500x500.png)
![Diamant 230v AC [F03/F05 11mm] 35S 11Nm 2x Aux (DY222F2)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/08/DY222F2-image-500x500.png)
Compact Pro Electric Actuators
Comparato Compact Pro Electric Actuators has an increased torque output over the Diamant Electric Actuators while being capable of both 2-point and 3-point electrical control and available with an AC or AC/DC power supply making it a very versatile option for a wide range of industrial applications.
Compact Electric Actuators are available with 2x feedback auxiliary microswitches.
Optional accessories available on request include manual override (AC only), anti-condensation heater, fail safe super-capacitor, spacers for insulation, waterproof IP68 enclosure (AC only) and the SMART system (WIFI configurable).
Torque | 22 Nm |
Speed of Operation (90°) | AC – 9 seconds 45 seconds DC – 10 seconds 30 seconds |
Power Supply | 24v AC, 110v AC, 230v AC12v DC, 24v DC |
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Compact 110v AC [F03/F05 11mm] 45s 22Nm + Override (CY2122P)
£363.90
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Compact 230v AC [14mm] 45s 22Nm + M/Override (CY2222PRQ14)
£346.60
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Compact 230v AC [F03/F05] 9s 11Nm + M/Override (CY2222P9R)
£358.73
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Compact 24v DC [ISO 5211 F03/F05] 30 Sec 22Nm (CY242PC)
From £358.14
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![Compact 110v AC [F03/F05 11mm] 45s 22Nm + Override (CY2122P)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/08/Diamant-AC-Actuator-Product-1-500x500.png)
![Compact 230v AC [14mm] 45s 22Nm + M/Override (CY2222PRQ14)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/08/DY222F2-image-2-500x500.png)
![Compact 24v DC [ISO 5211 F03/F05] 30 Sec 22Nm (CY242PC)](https://v-flowsolutions.co.uk/wp-content/uploads/2024/09/CY242PCQ14-web-image-1-500x500.png)
Universal Pro Electric Actuators
Comparato Universal Pro (AC only) Electric Actuator with IP67 enclosure, 2 feedback micro-switches and options for 2 point of 3 point control.
Optional Accessories:
- SMART option available (WIFI configurable actuator)
- Anti-condensation resistor
- Manual override available on AC actuators
- 2 cable gland electric entries
- Fail safe super-capacitor
- Waterproof IP68 Enclosure available
- Available with a spacer between the valve and actuator for insulation
Torque | 40 Nm |
Speed of Operation (90°) | 14 seconds 32 seconds 55 seconds |
Power Supply | 24v AC, 110v AC, 230v AC |
