WaterStop

Remotely controlled water shutoff valve

Up to 3 years of replaceable battery life

Up to 1,100m range of communication with an Ajax hub

Supporting automation scenarios

Overcurrent protection

Electronic shutoff in 5 seconds

Revolutionizing Water Leak Prevention: Introducing WaterStop by Ajax

Experience a worry-free environment with WaterStop, the cutting-edge water shut-off solution that ensures swift action in the event of leaks. With its advanced features and seamless integration with Ajax security systems and third-party detectors, WaterStop guarantees prompt response, minimizes property damage, and provides unparalleled convenience. Discover the power of WaterStop and how it can revolutionize water leak prevention in various settings.

Protecting Your Private Residence

Rest easy knowing that your home is under the vigilant care of Ajax. WaterStop effectively shuts off the water supply whenever necessary, instantly notifying both users and the security company in the event of a water leak. Say goodbye to property damage worries with the in-app control and automation scenarios that put you in control.

Eliminating Flooding in Public Spaces

In bustling public spaces like offices, libraries, and malls, WaterStop's network of leak detectors and shutoff valves comes to the rescue. By swiftly localizing incidents without causing disruption to employees or visitors, the management can promptly request plumbing and cleaning services, effectively mitigating high-cost consequences.

Securing Industrial Premises

Ajax systems can effortlessly control up to 200 leak detectors and shutoff valves, making it ideal for massive industrial facilities. With long-range wireless communication technology and impressive battery life, WaterStop seamlessly integrates into large-scale water leak prevention networks, automatically eliminating and localizing leaks without interrupting production.

Reliable Performance and Peace of Mind

With a 3-year battery life and the option to connect an external power supply, WaterStop offers unparalleled reliability and peace of mind. Every device within the Ajax water leak prevention system operates on pre-installed batteries, providing 24/7 protection for your property. Additionally, WaterStop boasts additional protection measures, including resistance to overcurrent and overheating, ensuring the electric actuator's performance remains unaffected even in challenging circumstances.

Effortless Installation, Hassle-Free Maintenance

Say goodbye to complex and time-consuming installations. Ajax has revolutionized the installation process, minimizing costs, and inconvenience for both clients and professionals. Thanks to cutting-edge engineering, WaterStop's compact size and advanced capabilities make installation a breeze. The miniature Ajax water leak detectors can be installed in hard-to-reach places without enclosure disassembling, while the shutoff valve seamlessly integrates into existing plumbing systems. With no wires required, the actuator unit conveniently fits limited spaces, offering flexibility and efficiency during installation.

Swift Action, Minimal Water Loss

WaterStop excels in delivering swift action while minimizing water loss. Under normal operating conditions, it shuts off the water within 5 seconds of command or automatically triggers the shut-off when LeaksProtect or a third-party sensor detects flooding. In fact, in a system with a ¾-inch pipe and 2.5 bar of pressure, WaterStop minimizes water loss to less than 1 liter, ensuring efficient water conservation.

Tailored Solutions for Every Setting

WaterStop is available in three versions (½” (DN 15), ¾” (DN 20), or 1” (DN 25)), featuring different valve options to cater to various demands. Whether it's a residential home or a large-scale business facility, WaterStop's compatibility with ISO 5211 standard ball valves allows for easy installation, ensuring a perfect fit for specific tasks and sizes.

Unleashing the Power of Ajax Wireless Technologies

WaterStop harnesses the power of Ajax's state-of-the-art wireless technology, providing secure and efficient communication. With its long-range signal transmission of up to 1,100 meters in an open space, Ajax outperforms competing solutions. The system's automatic power adjustment and frequency hopping ensure energy efficiency and protection against interference and signal interception. For complex radio signal conditions, such as large houses or warehouses, the ReX range extender offers extended coverage and stable communication even through steel and concrete structures

Comprehensive Monitoring with PRO Desktop

For building administrators, PRO Desktop provides comprehensive monitoring of security, automation, and smart home devices. With real-time device statuses, event logs, and microclimate data, administrators can have a centralized view of the entire system, ensuring optimal control and quick response. The photo verification feature enables a visual assessment of the situation, aiding in the swift resolution of any issues. Additionally, installation engineers can remotely adjust settings and provide tailored services based on specific requirements.

Advanced Automation for Enhanced Safety

WaterStop seamlessly integrates into the Ajax ecosystem, allowing it to interact with automation devices and the MotionCam lineup's PhOD detectors. In the event of minor leaks or major flooding, WaterStop promptly shuts off the water supply, while MotionCam captures images to identify the cause and assess potential damage. With automatic water supply control, the system intelligently turns off the water when it's not in use, combining security and automation for ultimate safety.

Efficient Water Leak Prevention

WaterStop ensures water shut-off when triggered by LeaksProtect or third-party leak detectors integrated into the Ajax system. Additionally, it automatically shuts off the water when the security system is armed, guaranteeing leak prevention even when you're away. For added convenience, WaterStop allows scheduled water supply control, enabling you to adjust specific timings to suit your needs. Furthermore, the device's communication failure detection system ensures prompt notification in case of any disruptions.

Enhanced Security and Installation Features

WaterStop incorporates anti-sabotage mount lockers, preventing unauthorized dismantling of the electric actuator. With the tamper alarm and control button locking features, WaterStop provides an additional layer of security, alerting users and the security company in case of any unauthorized tampering or manual shut-offs. The intuitive installation process and seamless connection to Ajax apps ensure a hassle-free experience, allowing for maintenance and repair in hard-to-reach places without disassembling the shutoff valve.

Download Manual

Tech Specs

Download Tech Specs

Compatibility

Hubs
Hub Plus
Hub 2 (2G)
Hub 2 (4G)
Hub 2 Plus
Hub Hybrid (2G)
Hub Hybrid (4G)

Radio signal range extenders
Rex
Rex2

Communication

Jeweller communication technology

Proprietary wireless communication technology to transmit events.

It features:

Two-way communication.
Protection against spoofing.
Block encryption with a floating key.
Instant notifications.
Remote configuration via the Ajax apps.

Learn more

Frequency bands
866.0 – 866.5 MHz
868.0 – 868.6 MHz
868.7 – 869.2 MHz
905.0 – 926.5 MHz
915.85 – 926.5 MHz
921.0 – 922.0 MHz
Depends on the region of sales.

Maximum effective radiated power (ERP)
Up to 20 mW

Automatic power regulation to reduce power consumption and the effect of radio interference.

Radio signal modulation
GFSK

Radio signal range
up to 1,100 m
Between device and hub (or radio signal range extender) without obstacles.

Calculate the radio communication signal range at the object

Radio signal encryption
Block encryption with a floating key protects all the data stored and transmitted.

Radio frequency hopping
Prevents radio interference and jamming.

Learn more

Operating components

Shutoff valve
½" (DN 15), ¾" (DN 20), or 1" (DN 25) Bonomi Industries
shutoff valve included in complete set.

Electric actuator
Opens or closes the valve.

Mounting platform
To install an electric actuator on a shutoff valve.

Mounting lockers
To fix an electric actuator on a shutoff valve.

The complete set includes two options:

standard (pre-installed)
anti-sabotage

Water shut-off
shutoff valve

Fields of application
water supply and heating systems

Operating fluid
hot and cold water, non-aggressive liquids

Material
brass

Connection type and thread
F/F threaded
Thread size:

½" (DN 15, 15 mm)
¾" (DN 20, 20 mm)
1" (DN 25, 25 mm)

Operating liquids' temperature range
from +5°C to +120°C

Mounting platform
to mount an electric actuator on a shutoff valve
Complies with the ISO 5211 standard.

Lever on mounting platform
To manually shut off the water supply without tools in case of emergencies.

Water shut-off
electric actuator

Torque
up to 8.5 N•m

Operating pressure
up to 10 bars

Shut-off speed
up to 5 seconds
The value may increase if the valve is clogged or stuck.

Remote control
control and configuration in Ajax apps
Apps provide all information about the device: current valve state (open/closed), statuses of battery charge, external power supply, and communication with a hub.

Manual control
the control button on the electric actuator enclosure
Opens/closes the valve when pressed.

Additional features

Installation

does not require tools and enclosure disassembling
4 possible mounting positions of electric actuator towards the valve
anti-sabotage locker to complicate unauthorized dismount of an electric actuator

The design allows maintenance, and repair in hard-to-reach places: pipe tunnels, technical boxes, walls, etc. It is possible to replace the actuator unit without dismantling the shutoff valve.

LED indication
The LED placed under an Ajax logo on enclosure and reports the electric actuator states.

Automation scenarios

alarm reactions
security mode change reactions
scheduled actions
temperature scenarios
humidity scenarios
CO2 level scenarios
by pressing Button
by pressing LightSwitch

Learn more

Stuck prevention
the scheduled scenario automatically opens/closes a shutoff valve
Configured in Ajax apps. The recommended periodicity is once a week.

Overheating notification
The notification is sent to Ajax apps when the device temperature tops +60°C and when it returns to normal.

Recommendations

The device is designed for indoor use only. Contact a plumber to install the shutoff valve.

Anti-sabotage protection

Protection against spoofing
device authentication

Communication failure detection
in 36 s
The time depends on the Jeweller (or Jeweller/Fibra) settings.

Learn more

Tampering alarm
Notifies about attempts to detach the enclosure from the mount.

Learn more

Mounting lockers for fastening
The complete set includes two options:

Standard locker (pre-installed) — fixes an electric actuator on a shutoff valve. Removes easily for a quick access to the valve.
Anti-sabotage locker — used instead of a standard locker. Securely fixes an electric actuator on the valve to complicate an unauthorized dismount.

Power supply

Pre-installed batteries
4 × CR123A battery
Up to 3 years of battery life.

Optional external power supply
7.5–14 V⎓, up to 1.8 A
The Recommended voltage of the power supply is 9 or 12 V⎓.The batteries serve as a backup when external power supply is connected.

Enclosure

Dimensions
104 × 140 × 70 mm
½" (DN 15) shutoff valve with an electric actuator.
104 × 150 × 70 mm
¾" (DN 20) shutoff valve with an electric actuator.
104.5 × 159 × 70 mm
1" (DN 25) shutoff valve with an electric actuator.
93 × 70 × 95 mm
Electric actuator.
75 × 27 mm
½" (DN 15) shutoff valve.
80 × 32 mm
¾" (DN 20) shutoff valve.
90 × 41 mm
1" (DN 25) shutoff valve.

Weight
869 g
½" (DN 15) shutoff valve with an electric actuator.
1012 g
¾" (DN 20) shutoff valve with an electric actuator.
1336 g
1" (DN 25) shutoff valve with an electric actuator.
536 g
Electric actuator.
333 g
½" (DN 15) shutoff valve.
476 g
¾" (DN 20) shutoff valve.
800 g
1" (DN 25) shutoff valve.

Operating temperature range
from 0°C to +60°C

Operating humidity
up to 95%

Colours

White
Black

Complete set

WaterStop Jeweller
4 CR123A batteries
Pre-installed.
Quick start guide

Compliance with standards