160mm Flap Valve – Capricorn

Product Description

Protect your drainage system from unwanted backflow with this 160mm Flap Valve – Capricorn. Designed for standard underground drainage or sewer and waste pipes, this valve allows flow in one direction while automatically closing in adverse conditions—such as flooding, water back-pressure, or surging wastewater—to prevent water, odours, and pests from entering your property.

Constructed from durable ABS plastic with a stainless steel flap, this end flap valve delivers reliable performance in harsh underground environments. The flap swings freely to allow outgoing flow, but seals closed under reverse pressure. The socketed 110mm inlet means it’s straightforward to install with standard drainage piping. Once fitted, it works automatically, needing no external power or manual operation.

Key Features

• Designed for 160 mm diameter drainage pipework.

• Sturdy flap made of stainless steel for long-lasting service in corrosive conditions.

• Valve body made from ABS plastic — lightweight yet durable.

• Allows normal downstream flow; automatically closes when backflow is detected.

• Socket end for easy installation into standard pipe systems.

Benefits

• Flood protection: Stops wastewater or stormwater from flowing back into buildings.

• Odour and pest control: Seals off the line under backflow, preventing smells and pests.

• Low maintenance: Flap design works automatically; regular inspections suffice.

• Durable and reliable: Stainless steel flap resists corrosion; ABS body endures underground conditions.

• Easy to fit: Socket connection simplifies installation with standard pipe sizes.

For more drainage fittings, see here.