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Wastop - inline non-return backflow and flood prevention valves
Wastop inline non-return backflow and flood prevention valves are made from stainless steel (304 or 316) with a cone-shaped chloroprene membrane. Designed for inline installation, these valves allow flow in one direction and seal against backflow without relying on gravity or vertical mounting. Standard sizes suit pressures up to 8MwC, with
Wastop inline non-return backflow and flood prevention valves are made from stainless steel (304 or 316) with a cone-shaped chloroprene membrane. Designed for inline installation, these valves allow flow in one direction and seal against backflow without relying on gravity or vertical mounting. Standard sizes suit pressures up to 8MwC, with special sizes available.
Inline non return valve for backflow and flood prevention in pipework
Made from stainless steel (304 or 316) for durability and corrosion resistance
Cone-shaped chloroprene membrane seals automatically against backflow
Operates in any orientation, not dependent on gravity or vertical installation
Range covers standard sizes for up to 8MwC pressure
Flanged options for factory fitting to headwalls or outfall walls
Applications
Flood prevention in drainage systems
Backflow protection in stormwater and wastewater pipes
Outfall and tidal wall installations
Inline use between existing pipework
Retrofitting to precast headwalls
Dimensions
Standard sizes from 100 to 1500mm diameter
Performance
Suitable for pressures up to 8MwC
Materials
Stainless steel (304 or 316), chloroprene membrane