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Universal Motorized Zone Valve Head Actuator Replacement - 2 Port

Universal Motorized Zone Valve Head Actuator Replacement - 2 Port

Motorized Valve 2 Way (Normally Closed) Replacement Actuator Head Only (No Brass Valve)This Univer...

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B&Q - Universal Motorized Zone Valve Head Actuator Replacement2 Port
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£25.60
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Product Information

Full details

This guide is for homeowners and heating engineers looking to replace or understand the Unvented Components Europe 2 Port Motorized Valve Head. Its key benefit is providing a universal replacement actuator head for various two-port zone valves, offering quiet operation and energy efficiency. A caveat is that this is the head unit only and does not include the brass valve body.

All features

Model Part Number2 Port
BrandUnvented Components Europe

Extended Product Information

FAQs

Is this a complete valve, or just the replacement head?

This product is the replacement actuator head only. It does not include the brass valve body.

What types of zone valves does this head fit?

It is designed to fit 22mm, 28mm, 3/4″, and 1″ two-port zone valves.

Do I need to drain my heating system to install this head?

No, one of the key benefits is that it can be fitted to the valve body without needing to drain down the central heating system.

How quickly does the valve open and close?

The response opening time is approximately 12 seconds, and the response closing time is approximately 6 seconds.

What is the power consumption of this valve head?

The power consumption is low, rated at 6W.

Can this valve be used in commercial applications?

Yes, while designed for small bore central heating systems, the head can also be fitted to valves used in commercial and industrial applications.

What is the operating temperature range for the fluid?

The valve head is suitable for fluids between +5°C and +88°C.

Troubleshooting

Valve head not opening or closing.

Check the electrical connection to ensure it is secure and receiving the correct voltage (230V AC). Verify that the thermostat is correctly calling for heat or has reached the set point. Ensure the manual lever is not in the manual position.

Valve head is making noise.

Some minimal noise during operation is normal due to the motor and spring mechanism. Excessive or loud noise could indicate a faulty motor or an obstruction. Check for system pressure issues or if the valve body itself requires servicing.

Valve leaks from the stem.

This usually indicates a problem with the valve body seal, not the actuator head itself. The valve body may need replacement. If the leak is from the electrical connection, ensure it is properly sealed.

System not heating properly.

Confirm the valve head is receiving power and actuating correctly. Check if the manual lever is in the correct position (automatic). Ensure the central heating system is functioning correctly and that there are no blockages in the pipework.

Pros and Cons

Pros

  • Universal compatibility with multiple valve sizes reduces the need for specialized parts.
  • Installation can be done without draining the system, making maintenance quicker.
  • Quiet operation contributes to a more comfortable home environment.
  • Low power consumption is energy-efficient.
  • Manual override lever offers practical control for system maintenance.

Cons

  • This is a replacement head only; the brass valve body is not included.
  • Requires basic DIY or professional installation knowledge.
  • Compatibility is limited to two-port zone valves.
  • Requires a 230V AC power supply, not suitable for low-voltage systems.

Setup, Compatibility & Care

Compatibility:

  • This actuator head is compatible with 22mm, 28mm, 3/4″, and 1″ two-port zone valves.
  • It is designed for systems with a fluid temperature range of +5°C to +88°C.
  • The maximum static pressure it can handle is 8.6 bar.
  • Requires a 230 Volts AC 50Hz power supply.

Setup:

  1. Ensure the power supply to the existing valve is switched off.
  2. Remove the old actuator head (usually by unscrewing retaining screws or a retaining nut).
  3. Attach the new Unvented Components Europe 2 Port Motorized Valve Head to the existing valve body. Ensure it is seated correctly.
  4. Secure the head using the provided fixings.
  5. Connect the electrical wiring according to the system's wiring diagram.
  6. Restore power to the valve.

Care:

  • Cleaning: The exterior of the actuator head can be cleaned with a dry or slightly damp cloth. Avoid using abrasive cleaners or solvents.
  • Maintenance: This unit is designed for low maintenance. Periodically check that the manual lever moves freely and that the valve operates smoothly when called for by the thermostat. Ensure the electrical connections remain secure.

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