REDI Non-Return Valves

  REDI non-return valves (check valves) are designed to prevent the backflow of wastewater and sewage into drainage systems, protecting properties from flooding and contamination caused by system overloads or sewer backups.

  Why Non-Return Valves Matter

  During heavy rainfall or sewer surcharge, wastewater can be pushed back through the drainage network and into buildings, causing flooding, water damage, and health hazards. A non-return valve allows water to flow in one direction only — out of the property — while automatically sealing shut to block any reverse flow. This makes them a critical safeguard for protecting basements, ground floors, and low-lying areas connected to the drainage system.

  Extra Protection Option

  Select models are available with a stainless steel door instead of PVC, offering added durability and protection against pests such as mice, in addition to blocking backflow.

  Size Range

Available in diameters from 110mm to 315mm (4 inch to 12 inch), suitable for a wide range of pipe sizes and installation needs.

  Applications

• Residential basements and ground-floor drainage
• Commercial and industrial buildings
• Areas prone to sewer backflow or flooding
• Low-lying properties connected to municipal drainage networks
• Sites requiring protection against storm surges or heavy rainfall events

  Have a specific configuration in mind? Ask us about available types, sizes, and finishes — we’re happy to help you find the right fit.