Ajax WaterStop 3/4 (DN20) White
R4 635,65
The Ajax WaterStop 3/4 (DN20) White is an intelligent automatic water shut-off valve designed to prevent flooding and water damage. This Ajax WaterStop DN20 closes the water supply within 5 seconds when triggered by Ajax LeaksProtect or compatible third-party leak detectors connected to an Ajax Hub.
Designed for residential and commercial properties, the system provides reliable remote control, secure wireless communication, and long-term autonomous operation.
β’ Automatic water shut-off within 5 seconds
β’ Designed for 3/4β (DN20) plumbing systems
β’ Compatible with hot and cold water pipes
β’ Up to 3 years battery life
β’ Wireless Jeweller communication technology
β’ Remote control via Ajax mobile apps
β’ Sabotage-resistant design with overheating protection
β’ Easy installation without construction work
Professional flood prevention solutions available from Security Expert Online.
Out of stock
1952269-155-WH1
Additional Information
Additional information
Description
Ajax WaterStop 3/4 (DN20) White
The Ajax WaterStop 3/4 (DN20) White is an intelligent water leak prevention device designed to automatically shut off water when a leak is detected. This Ajax WaterStop DN20 combines a high-quality shut-off valve with a powerful electric actuator to protect residential and commercial properties from water damage.
When paired with Ajax LeaksProtect or compatible third-party leak detectors connected to an Ajax Hub, WaterStop automatically closes the water supply within 5 seconds.
Automatic Water Shut-off
WaterStop uses a powerful electric actuator capable of delivering up to 8.5 NΒ·m of torque to close the valve quickly and reliably.
The system automatically reacts when a leak detector is triggered, helping minimise water damage and property disruption.
Key operational features include:
β’ Automatic water shut-off within 5 seconds
β’ Reliable valve operation under pressure
β’ Remote manual control through Ajax apps
β’ Scheduled water shut-off scenarios
β’ Automation integration with Ajax security systems
Under normal operating conditions with a 3/4-inch pipe and 2.5 bar water pressure, less than 1 litre of water may leak before shut-off.
Wireless Communication
The Ajax WaterStop DN20 uses Ajax Jeweller wireless communication technology for secure and stable two-way communication with the Ajax Hub.
Wireless communication features include:
β’ Communication range up to 1,100 metres in open space
β’ Encrypted two-way communication
β’ Frequency hopping protection against jamming
β’ Device authentication for sabotage prevention
β’ Stable low-power communication technology
This ensures reliable operation across homes, offices, warehouses, and commercial facilities.
Installation and Compatibility
WaterStop is designed for quick installation without construction work or complex wiring.
The compact actuator allows installation in confined plumbing spaces and supports multiple mounting positions.
Compatibility requirements:
β’ Ajax Hub
β’ Ajax LeaksProtect
β’ Compatible third-party leak detectors via Ajax integration
The device supports both hot and cold water systems.
Security Protection
WaterStop includes multiple protection mechanisms to maintain reliable long-term operation.
Security and protection features include:
β’ Overheating protection
β’ Overcurrent protection
β’ Secure wireless encryption
β’ Anti-sabotage communication protocols
β’ Backup operation during power failures
The system continuously monitors device status and reports faults or low battery conditions through Ajax apps.
Power Supply
The device operates using pre-installed CR123A batteries and can also support an external power supply.
Power features include:
β’ Up to 3 years battery life
β’ 4 Γ CR123A batteries pre-installed
β’ Optional 9β12 V external power supply
β’ Battery backup during power outages
This allows uninterrupted operation even during electrical failures.
Advanced Automation
As part of the Ajax ecosystem, WaterStop supports intelligent automation scenarios.
Automation examples include:
β’ Automatic shut-off when leaks are detected
β’ Water shut-off when the security system is armed
β’ Scheduled water supply control
β’ Integration with MotionCam automation scenarios
These functions help improve building safety and reduce the risk of flooding.
Device Specifications
β’ Valve size: 3/4β (DN20)
β’ Colour: White
β’ Shut-off time: Up to 5 seconds
β’ Actuator torque: Up to 8.5 NΒ·m
β’ Communication technology: Ajax Jeweller
β’ Wireless communication range: Up to 1,100 m
β’ Power supply: 4 Γ CR123A batteries
β’ Battery life: Up to 3 years
β’ Optional external power: 9β12 V DC
β’ Suitable for hot and cold water systems
β’ Installation type: Inline plumbing installation
Compatibility
Compatible with:
β’ Ajax Hub
β’ Ajax LeaksProtect
β’ Ajax ReX range extenders
β’ Ajax automation scenarios
β’ Third-party water leak detectors integrated via Ajax Transmitter or MultiTransmitter
Complete Set
β’ Ajax WaterStop 3/4 (DN20) White
β’ 4 Γ CR123A batteries (pre-installed)
β’ 2 Γ actuator securing lockers
β’ Sealing nut
β’ Quick start guide
Professional Security Solution
The Ajax WaterStop DN20 provides intelligent water leak prevention for residential, commercial, and industrial properties. By integrating automatic shut-off control with the Ajax ecosystem, it helps minimise water damage and improve property protection.
Security Expert Online supplies professional Ajax flood prevention and smart security solutions across South Africa.
