Description
Fernco BWV160/1 In-line Backwater Valve 160mm (Single Flap)
The In Line Backwater Valve (Single Flap) is a robust, low-maintenance solution designed to protect properties from potential flooding caused by sewer backflow. Installed directly in-line with drainage systems, this backwater valve allows wastewater to flow freely in the intended direction while automatically blocking any backflow in the event of heavy rain, sewer surcharge, or flooding.
This valve is manufactured to the highest standards, fully compliant with BS EN 13564 for anti-flooding devices. The single flap design ensures smooth operation, opening easily with the flow of wastewater and closing securely to prevent reverse flow. Additionally, the stainless steel flap doubles as an effective rodent deterrent, preventing access from pests through the drainage network.
The In Line Backwater Valve is engineered to minimise the risk of solid waste build-up inside the valve body, reducing the likelihood of blockages. It is suitable for use in foul and surface water drainage systems and is available in a range of sizes from Ø110mm to Ø200mm, providing flexibility for various domestic and commercial installations.
Key Features and Benefits
Specifications:
- Available sizes: 110mm, 160mm
- Single flap mechanism
- Compliant with BS EN 13564
- Stainless steel anti-flooding flap
Benefits:
- Prevents backflow and flooding
- Acts as a rodent barrier
- Maintenance-free operation
- Easy installation in existing drainage systems
Browse the Range
Browse our full range of Fernco couplings/ valves by clicking below:





