説明
Water Is Patient. Your Plumbing Should Not Be. A burst flexible hose under a sink releases water at the rate of a bathtub filling, and it does it silently, in a room nobody visits, at three in the morning. By the time a person notices, the damage is not the pipe: it is the floor, the ceiling below it, the electrics in the wall, the stock on the pallets, and the paperwork with the insurer. Every one of those costs is downstream of a single failure that lasts minutes longer than it should have. Closing a valve in the first second of a leak is not a clever feature. It is the whole product.
This system pairs a controller with four water sensors on six-metre cables and a motorised brass ball valve, so detection and shutdown happen without a human in the loop. Model WZ808DN15S4 runs on DC5V and draws under 5W. When a sensor cable touches water, an 85dB buzzer sounds, the corresponding indicator lamp lights, and the valve closes in under a second, isolating the supply while the leak is still a puddle. Working pressure is rated below 1.0MPa, the medium temperature range covers 0 to 90 degrees Celsius, and the electronics sit in an IP65 housing. The valve is rated for more than 50,000 open and close cycles. The controller carries two status lamps for the valve and eight alarm lamps with eight sensor interfaces, so a single unit can watch a whole riser, a plant room, or the four places in a building where water is most likely to escape. The kit ships with the detector, the valve in your chosen size, four six-metre sensor cables, and a European or USA power plug.
Sizing is simple. DN15 suits a half-inch supply to a single appliance group, DN20 covers a domestic or light-commercial main, and DN25 is the choice for larger commercial feeds where flow rate cannot be compromised. Warehouses, laundries, boiler rooms, server rooms with condensate drainage, hotels, schools, hospitals, apartment risers and any building with a basement full of stored value are the places this belongs.
The cheapest flood is the one that never happens.
Key Features
- ✦ Automatic shut-off: the motorised brass ball valve closes in under a second on detection
- ✦ Four water sensors on six-metre cables, so several risk points are covered by one controller
- ✦ 85dB audible alarm with indicator lamps showing which sensor has triggered
- ✦ Valve rated for more than 50,000 open and close cycles
- ✦ IP65-rated controller housing for plant rooms, basements and utility cupboards
- ✦ Working pressure rated below 1.0MPa with a medium temperature range of 0 to 90 degrees Celsius
- ✦ Eight sensor interfaces and eight alarm lamps on the controller for larger coverage
- ✦ Available in DN15, DN20 and DN25 valve sizes to match the supply it protects
Technical Specifications
- Model Number: WZ808DN15S4
- Valve Sizes Available: DN15, DN20 and DN25
- Valve Type: Motorised brass ball valve, normally open, closed on alarm
- Sensor Quantity: 4 sensors included
- Sensor Cable Length: 6 metres per sensor
- Alarm: 85dB buzzer with sound and light indication
- Valve Close Time: Under 1 second from alarm trigger
- Working Pressure: Below 1.0MPa
- Medium Temperature: 0 to 90 degrees Celsius
- Working Voltage: DC5V
- Power Consumption: Under 5W
- Valve Lifetime: More than 50,000 cycles
- Ingress Protection: IP65 controller housing
- Indicators: 2 valve status lamps and 8 alarm lamps with 8 sensor interfaces
- Included: 1 detector, 1 valve, 4 sensor cables of 6 metres, 1 European or USA power plug
Where It Belongs
This belongs wherever water sits above something expensive. Basement storerooms and warehouses where a leak finds pallets, stock and documents before it finds a drain. Plant rooms and boiler rooms full of pipework that nobody watches overnight. Laundry rooms where supply hoses fail under pressure. Server and comms rooms with air conditioning condensate lines. Hotels on a riser, apartments with a shared landing, schools and hospitals where a flood means closed rooms and documentation. In every one of those places, four sensors on six-metre leads can be placed at the joints, valves and hoses that are most likely to fail, and the valve does the rest.
Frequently Asked Questions
Q: How does the system decide to close the valve?
Each sensor detects water on its contacts. On detection the controller sounds an 85dB alarm, lights the corresponding indicator, and drives the motorised ball valve closed in under one second.
Q: Which valve size should I choose?
Match the valve to the pipe it protects. DN15 is a half-inch feed, DN20 suits a domestic or light-commercial main, and DN25 is for larger commercial supplies where you cannot restrict flow.
Q: Can one controller protect several places?
Yes. The controller has eight sensor interfaces with eight alarm lamps and ships with four sensors on six-metre cables, so additional sensors can extend coverage across a riser or plant room.
Q: Does the valve need power to stay open?
The unit is powered from the supplied mains plug adapter at DC5V and draws under 5W. The valve is driven to close on alarm and is rated for more than 50,000 cycles of operation.
Q: Is it suitable for a hot water line?
The valve is rated for media from 0 to 90 degrees Celsius, which covers domestic hot water and heating circuits within that range.
Q: What is included in the box?
One water leakage detector, one valve in the size you select, four six-metre sensor cables, and a European or USA power plug.
The EastSupplier Promise
Every unit is inspected before it leaves the warehouse. If a specification on this page does not match what arrives, we cover the return shipping and replace it. English-language support answers within one business day, and replacement parts for this category are stocked so that a working unit stays working.
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