WaterStop Wireless Water Shutoff Valve
A wireless smart shutoff valve with a powerful 8.5 N·m actuator, 7‑second water shutoff, automation scenarios, and up to 3 years of battery life.
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WaterStop Wireless Water Shutoff Valve
A remotely controlled smart shutoff valve designed to prevent flooding and protect property. WaterStop combines a high‑quality RuB brass valve with a powerful 8.5 N·m electric actuator, delivering rapid water shutoff in just 7 seconds. It integrates seamlessly with Ajax leak detectors and automation scenarios, enabling fully autonomous water management for homes, offices, and industrial facilities.
With up to 3 years of battery life, optional external power, and long‑range Jeweller communication, WaterStop provides reliable, maintenance‑friendly protection in any environment where water damage is a risk.
Key Features
- 7‑second water shutoff with a powerful 8.5 N·m actuator
- RuB brass valve in DN15, DN20, or DN25 sizes
- Wireless control via Ajax apps from anywhere
- Automation scenarios for leak alarms, schedules, and security mode changes
- Manual override using actuator button or valve lever
- Up to 1,100 m Jeweller communication range
- Up to 3 years battery life on 4 × CR123A batteries
- Optional 9–12 V⎓ external power with battery backup
- Anti-sabotage mounting locker for public or exposed installations
- Overheating and overcurrent protection
- Four mounting orientations for flexible installation
System Integration
WaterStop is a core component of the Ajax water‑leak prevention ecosystem:
- Automatic shutoff when LeaksProtect or third‑party leak detectors trigger
- Scheduled water control for routine or safety‑driven automation
- Security mode integration — shut off water when arming the system
- Remote control from Ajax apps with real‑time valve status
- Event‑driven automation using Button, LightSwitch, or temperature thresholds
- Full compatibility with Hub Plus, Hub 2, Hub 2 Plus, Hub Hybrid, ReX, and ReX 2
The actuator pairs via QR code and supports remote configuration, firmware updates, and diagnostics.
Reliability & Supervision
WaterStop is engineered for long‑term, fail‑safe operation:
- Encrypted two‑way communication with frequency hopping
- Communication loss detection within 36 seconds
- Tamper alarm when the actuator is removed or disturbed
- Anti-sabotage mounting locker prevents unauthorized disassembly
- Overheating notifications at +60°C
- Automatic stuck‑valve prevention via scheduled scenarios
- Battery and external power monitoring in real time
- Designed for hot and cold water systems up to 10 bar
These features ensure dependable operation in residential, commercial, and industrial environments.
Compliance
- RuB valve manufactured to ISO 5211 standards
- Suitable for potable water, heating systems, and non‑aggressive liquids
- CE certified
- Designed for indoor installation
Specifications
| Communication | Jeweller two-way encrypted communication, frequency hopping, up to 1,100 m range (open space) |
| Radio 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 (region dependent) |
| Valve Options | DN15 (1/2”), DN20 (3/4”), DN25 (1”) RuB brass valve |
| Actuator Torque | Up to 8.5 N·m |
| Shutoff Speed | Up to 7 seconds |
| Operating Pressure | Up to 10 bar |
| Operating Fluid | Hot and cold water, non-aggressive liquids |
| Thread Type | BSP (EN 10226-1, ISO 228) or NPT (ANSI B1.20.1), female-to-female |
| Liquid Temperature Range | +5°C to +120°C |
| Installation | Mounts directly to valve using SmartBracket-style platform; no enclosure disassembly required |
| Manual Control | Button on actuator + lever on valve |
| Automation Scenarios | Leak alarm, schedule, security mode change, Button, LightSwitch, temperature |
| Tamper Protection | Tamper alarm, anti-sabotage mounting locker, spoofing protection, communication loss detection |
| Power Supply | 4 × CR123A batteries (up to 3 years), optional 9–12 V⎓ external power supply |
| Operating Temperature | 0°C to +60°C |
| Operating Humidity | Up to 95% |
| Protection Class | IP rating not specified for actuator; valve suitable for indoor plumbing environments |
| Dimensions | 104 × 140 × 70 mm (DN15), 104 × 150 × 70 mm (DN20), 104 × 159 × 70 mm (DN25) |
| Weight | 869 g (DN15), 1012 g (DN20), 1336 g (DN25) |
| Complete Set | WaterStop actuator, RuB valve (DN15/DN20/DN25), 4 × CR123A batteries, 2 mounting lockers, sealing nut, quick start guide |
| Warranty | 24 months |