Ajax WaterStop ¾" (DN 20) Jeweller Wireless Water Shut-off Valve
Product Features
- WaterStop ¾" (DN 20) Jeweller wireless water shut-off valve, black (52268) or white (52269) actuator.
- Closes in up to 7 s at up to 10 bar, with up to 8.5 Nm of torque.
- Leak scenarios: closes when a paired Ajax leak detector raises an alarm.
- App, button or lever control; ¾" BSP parallel female threads on a brass valve.
- 4 × CR123A fitted, optional 7.5-14 V DC supply; IP66, for indoor use.
Ajax WaterStop ¾" (DN 20) Jeweller - Wireless Water Shut-off Valve
WaterStop ¾" (DN 20) Jeweller is a motorised water shut-off valve that answers to an Ajax hub. A battery-powered actuator is mounted on a ¾-inch brass ball valve and closes it in up to 7 seconds. The usual job is to stop the supply when an Ajax leak detector finds water, through a scenario, but the valve can also be worked from the Ajax app, by schedule, when the security mode changes, or with the button on the actuator. A manual lever on the mounting platform shuts the water without tools if you need it. Choose a black or white actuator above.
Also listed as 52268 (black) and 52269 (white). Ajax model ID WTS20.Y.J.
Key features
- ¾" (DN 20) brass ball valve with BSP parallel female threads at both ends.
- Electric actuator with up to 8.5 Nm of torque, closing the valve in up to 7 seconds at up to 10 bar.
- For water supply and heating systems: hot and cold water and non-aggressive liquids from -20 °C to +170 °C.
- Control from the Ajax apps, with the button on the actuator, or by hand with the lever on the mounting platform.
- Scenarios for alarms (including leaks), security mode changes, schedules, temperature, humidity or CO2, and Button or LightSwitch.
- Runs on 4 × CR123A batteries (fitted), or from an optional external 7.5-14 V DC supply rated at 1.8 A or more.
- Tamper alarm if the actuator is taken off its mount, lockers that make it harder to remove, and an overheating alert above +60 °C.
- IP66 housing for indoor installation, working from 0 °C to +60 °C with humidity up to 95%.
Technical specification
| Model numbers | 52268 (black), 52269 (white); Ajax model ID WTS20.Y.J |
|---|---|
| Type | Wireless motorised water shut-off valve (electric actuator on a ball valve) |
| Valve | ¾" (DN 20) RuB ball valve, brass |
| Thread | BSP parallel, female to female (EN 10226-1, ISO 228) |
| Suitable for | Water supply and heating systems; hot and cold water and non-aggressive liquids |
| Liquid temperature | -20 °C to +170 °C |
| Actuator torque | Up to 8.5 Nm |
| Operating pressure | Up to 10 bar |
| Closing time | Up to 7 s |
| Control | Ajax apps; button on the actuator; manual lever on the mounting platform |
| Scenarios | Alarm reactions, security mode changes, schedules, temperature, humidity and CO2 levels, Button press, LightSwitch touch |
| LED indication | Under the Ajax logo, shows the actuator state |
| Notifications | Overheating alert when the device passes +60 °C, and again when it returns to normal |
| Jeweller radio | Up to 1,100 m in open space; 866.0-866.5, 868.0-868.6 and 868.7-869.2 MHz (UK and European bands); up to 20 mW ERP; GFSK; block encryption and frequency hopping |
| Anti-tamper | Alarm if the actuator is detached from its mount; device authentication; loss of connection detected in 36 s |
| Installation | Actuator fits without tools in 4 positions on the valve; Ajax advises the valve is fitted by a plumber; indoor use only |
| Power | 4 × CR123A batteries (fitted); optional external 7.5-14 V DC, from 1.8 A |
| Operating environment | 0 °C to +60 °C, humidity up to 95% |
| Protection class | IP66 |
| Dimensions | Valve with actuator 104 × 150 × 70 mm; actuator 93 × 70 × 95 mm; valve 80 × 32 mm |
| Weight | 1,012 g in total (actuator 536 g, valve 476 g) |
| Colours | Black actuator (52268), white actuator (52269) |
| In the box | WaterStop Jeweller actuator, ¾" (DN 20) RuB valve, 4 × CR123A batteries (fitted), 2 lockers for the actuator, sealing nut, quick start guide |
| Certifications | Radio Equipment, EMC, Low Voltage (EN 60730-1, EN IEC 60730-2-8) and RoHS directives (EU); PSTI UK Schedule 1 |
Works with
Ajax hubs that use the Jeweller radio, such as Hub 2 (2G) Jeweller, Hub 2 (4G) Jeweller and Hub 2 Plus Jeweller. Keep the hub firmware up to date before pairing. ReX 2 Jeweller can extend the radio range. Pair it with LeaksProtect Jeweller leak detectors so a leak alarm closes the valve. The same actuator is also listed with ½" (DN 15) and 1" (DN 25) valves.
Common questions
Which size do I need?
Match the valve to the pipework thread. This one has ¾" (DN 20) BSP parallel female threads. We also list the ½" (DN 15) and 1" (DN 25) versions.
Will it close the water when a leak is found?
Yes, with a scenario. Link it to an Ajax leak detector such as LeaksProtect Jeweller and the valve closes, in up to 7 seconds, when that detector raises an alarm.
Can I still turn the water off without the app?
Yes. Press the button on the actuator, or use the lever on the mounting platform, which shuts the water by hand without tools.
How is it powered?
By 4 × CR123A batteries fitted at the factory. It can also run from an external 7.5-14 V DC supply rated at 1.8 A or more.
Who should fit it?
Ajax advises that a plumber fits the valve. The actuator then fits onto it without tools in any of 4 positions. It is for indoor use only.
Can it go on a heating circuit?
Ajax lists water supply and heating systems, with hot or cold water and other non-aggressive liquids from -20 °C to +170 °C, at operating pressures up to 10 bar.
Full manufacturer specification: Ajax WaterStop product page
Supplied by Zenith Security Co, Wolverhampton. Orders placed before 2:30pm are normally dispatched for delivery within 1-2 working days to England, Scotland and Wales, or collect from our Wolverhampton trade counter (please call first).
Browse the full Ajax range, more Ajax smart home and automation devices, or contact us on 01902 902251 for advice.
| Product Code | WTS20.Y.J |
|---|---|
| Manufacturer | AJAX |
| Device Type | smart home |
| Product Type | Intruder & Smoke Alarm |
| Technology | Jeweller (wireless) |
| Ajax Range | Baseline |
| Connection Type | Wireless |
| Indoor/Outdoor | Indoor Only |
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