
Drayton 22mm Motorised 2 Port Zone Valve & Snap-On Actuator
Drayton 22mm Motorised 2 Port Zone Valve & Snap-On Actuator (5 Wire SPST Switch) – MPN: 27100 is a compact motorised zone valve for controlling individual heating or hot water zones in domestic wet central heating systems. It combines a 22mm compression brass valve body with a low-energy 230V snap-on actuator, providing reliable on/off control with 100% tight shut-off and standard 5-wire SPST end-switch wiring.
Key Features
- 2-port normally-closed zone valve – valve is closed when de-energised and opens on demand, ideal for S-Plan zoning of central heating and hot water circuits.
- 22mm compression connections – suited to common domestic primary pipework, offering good flow with low hydraulic resistance.
- Snap-on actuator – actuator clips on and off the valve body using a side release button, allowing actuator or motor replacement without draining the system.
- 5-wire SPST auxiliary switch – built-in single-pole, single-throw end switch for boiler and pump interlock via an industry-standard 5-core cable.
- Spring-return mechanism – energise-to-open with spring return to closed when power is removed for fail-safe shut-off.
- 100% tight shut-off – designed for positive closure to prevent unwanted circulation and temperature overshoot.
- Manual lever & position indicator – manual lever for filling/override and a clear visual indicator of valve position.
- Serviceable design – actuator and motor are replaceable components, helping to extend overall system life and minimise disruption.
Technical Highlights
- Brand / Range: Drayton – Motorised Two Port Valves.
- Model / Part: ZA5/679-2 22mm 2-port zone valve with actuator (Part No. 27100).
- Valve type: 2-port, normally-closed zone valve.
- Connections: 22mm compression (for copper tube).
- Valve body material: brass forging.
- Motor supply: 230V AC, 50Hz, approximately 5W synchronous motor.
- Operation: energise to open; motor opening time typically around 14 seconds, spring return around 6 seconds.
- Maximum static pressure: 8.6 bar.
- Maximum differential pressure: up to approximately 0.7 bar.
- Water temperature range: 2°C to 93°C; maximum ambient temperature 52°C.
- End switch type: SPST auxiliary switch.
- Switch rating: 24–230V AC, 3(1)A.
- Cable: approximately 1m, 5-core flex.
- Standards: designed to comply with EN 60730-1 and associated control standards.
Typical Applications
- Two-port S-Plan systems providing independent control of central heating and stored hot water zones.
- Zoned heating systems in small to medium homes using 22mm primary pipework.
- Replacement for existing 22mm Drayton or similar 2-port valves wired with a standard 5-wire zone-valve scheme.
Installation Notes
- Install the brass valve body observing the correct flow direction arrow, using clean, deburred pipework and suitable jointing on the 22mm compression fittings.
- Fit or replace the snap-on actuator after pressure testing where possible, and always isolate mains power before any electrical work.
- Wire the valve using the standard 5-wire SPST zone valve diagram via an appropriate wiring centre, interlocked with room/cylinder thermostats and boiler controls.
- Position the valve so the actuator, manual lever and position indicator are accessible for future servicing and diagnostics.
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Drayton 22mm Motorised 2 Port Zone Valve & Snap-On Actuator
Drayton 22mm Motorised 2 Port Zone Valve & Snap-On Actuator (5 Wire SPST Switch) – MPN: 27100 is a compact motorised zone valve for controlling individual heating or hot water zones in domestic wet central heating systems. It combines a 22mm compression brass valve body with a low-energy 230V snap-on actuator, providing reliable on/off control with 100% tight shut-off and standard 5-wire SPST end-switch wiring.
Key Features
- 2-port normally-closed zone valve – valve is closed when de-energised and opens on demand, ideal for S-Plan zoning of central heating and hot water circuits.
- 22mm compression connections – suited to common domestic primary pipework, offering good flow with low hydraulic resistance.
- Snap-on actuator – actuator clips on and off the valve body using a side release button, allowing actuator or motor replacement without draining the system.
- 5-wire SPST auxiliary switch – built-in single-pole, single-throw end switch for boiler and pump interlock via an industry-standard 5-core cable.
- Spring-return mechanism – energise-to-open with spring return to closed when power is removed for fail-safe shut-off.
- 100% tight shut-off – designed for positive closure to prevent unwanted circulation and temperature overshoot.
- Manual lever & position indicator – manual lever for filling/override and a clear visual indicator of valve position.
- Serviceable design – actuator and motor are replaceable components, helping to extend overall system life and minimise disruption.
Technical Highlights
- Brand / Range: Drayton – Motorised Two Port Valves.
- Model / Part: ZA5/679-2 22mm 2-port zone valve with actuator (Part No. 27100).
- Valve type: 2-port, normally-closed zone valve.
- Connections: 22mm compression (for copper tube).
- Valve body material: brass forging.
- Motor supply: 230V AC, 50Hz, approximately 5W synchronous motor.
- Operation: energise to open; motor opening time typically around 14 seconds, spring return around 6 seconds.
- Maximum static pressure: 8.6 bar.
- Maximum differential pressure: up to approximately 0.7 bar.
- Water temperature range: 2°C to 93°C; maximum ambient temperature 52°C.
- End switch type: SPST auxiliary switch.
- Switch rating: 24–230V AC, 3(1)A.
- Cable: approximately 1m, 5-core flex.
- Standards: designed to comply with EN 60730-1 and associated control standards.
Typical Applications
- Two-port S-Plan systems providing independent control of central heating and stored hot water zones.
- Zoned heating systems in small to medium homes using 22mm primary pipework.
- Replacement for existing 22mm Drayton or similar 2-port valves wired with a standard 5-wire zone-valve scheme.
Installation Notes
- Install the brass valve body observing the correct flow direction arrow, using clean, deburred pipework and suitable jointing on the 22mm compression fittings.
- Fit or replace the snap-on actuator after pressure testing where possible, and always isolate mains power before any electrical work.
- Wire the valve using the standard 5-wire SPST zone valve diagram via an appropriate wiring centre, interlocked with room/cylinder thermostats and boiler controls.
- Position the valve so the actuator, manual lever and position indicator are accessible for future servicing and diagnostics.
Product Information
Product Information
Shipping & Returns
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Description
Drayton 22mm Motorised 2 Port Zone Valve & Snap-On Actuator (5 Wire SPST Switch) – MPN: 27100 is a compact motorised zone valve for controlling individual heating or hot water zones in domestic wet central heating systems. It combines a 22mm compression brass valve body with a low-energy 230V snap-on actuator, providing reliable on/off control with 100% tight shut-off and standard 5-wire SPST end-switch wiring.
Key Features
- 2-port normally-closed zone valve – valve is closed when de-energised and opens on demand, ideal for S-Plan zoning of central heating and hot water circuits.
- 22mm compression connections – suited to common domestic primary pipework, offering good flow with low hydraulic resistance.
- Snap-on actuator – actuator clips on and off the valve body using a side release button, allowing actuator or motor replacement without draining the system.
- 5-wire SPST auxiliary switch – built-in single-pole, single-throw end switch for boiler and pump interlock via an industry-standard 5-core cable.
- Spring-return mechanism – energise-to-open with spring return to closed when power is removed for fail-safe shut-off.
- 100% tight shut-off – designed for positive closure to prevent unwanted circulation and temperature overshoot.
- Manual lever & position indicator – manual lever for filling/override and a clear visual indicator of valve position.
- Serviceable design – actuator and motor are replaceable components, helping to extend overall system life and minimise disruption.
Technical Highlights
- Brand / Range: Drayton – Motorised Two Port Valves.
- Model / Part: ZA5/679-2 22mm 2-port zone valve with actuator (Part No. 27100).
- Valve type: 2-port, normally-closed zone valve.
- Connections: 22mm compression (for copper tube).
- Valve body material: brass forging.
- Motor supply: 230V AC, 50Hz, approximately 5W synchronous motor.
- Operation: energise to open; motor opening time typically around 14 seconds, spring return around 6 seconds.
- Maximum static pressure: 8.6 bar.
- Maximum differential pressure: up to approximately 0.7 bar.
- Water temperature range: 2°C to 93°C; maximum ambient temperature 52°C.
- End switch type: SPST auxiliary switch.
- Switch rating: 24–230V AC, 3(1)A.
- Cable: approximately 1m, 5-core flex.
- Standards: designed to comply with EN 60730-1 and associated control standards.
Typical Applications
- Two-port S-Plan systems providing independent control of central heating and stored hot water zones.
- Zoned heating systems in small to medium homes using 22mm primary pipework.
- Replacement for existing 22mm Drayton or similar 2-port valves wired with a standard 5-wire zone-valve scheme.
Installation Notes
- Install the brass valve body observing the correct flow direction arrow, using clean, deburred pipework and suitable jointing on the 22mm compression fittings.
- Fit or replace the snap-on actuator after pressure testing where possible, and always isolate mains power before any electrical work.
- Wire the valve using the standard 5-wire SPST zone valve diagram via an appropriate wiring centre, interlocked with room/cylinder thermostats and boiler controls.
- Position the valve so the actuator, manual lever and position indicator are accessible for future servicing and diagnostics.













