Check-Flex Inline Valve

Estimate lead times

Typically up to 3 working days

300mm Check-Flex Inline Valve

£1,945.00 + VAT

Inline check valve that seals directly to the pipe

The 300mm Check-Flex valve is to suit 300mm internal diameter pipework

The Check-Flex valve is an inline non return valve to prevent backflow up a pipe during storm events and flooding

This is an ingenious inline valve that requires no wall fixing. You push this into the pipe and the expanding clamp inside the valve secures the Check-Flex in place.

The 300mm Check-Flex valve is suitable for surface storm water and foul or combined applications

We offer much larger sizes of the Check-Flex valve on our main website

Althon 300mm Check-Flex valves are an inline check valve that seals directly to the pipe, meaning no work is needed to the existing wall opening or benching.

The valves one piece design allows the valve to flex without the point stress of older three piece assembled design. The valve combines a Sealing Gasket, Moving Flap and Container into a single integrated product. There is no hinge mechanism to be maintained.

The materials used are rated for severe service including unscreened highway run off and even steam detergent wash down areas in food plants. The fibre reinforcement prevents tearing from glass shards, grit, and debris. The neoprene will flex without fatigue in the same way as a tyre flexes each rotation.

Our offices will be closed from Lunchtime on 23rd December until 8am on 5th January 2026

Orders can still be placed online but we will not be able to process them until our return to the office on 5th January 2026

We hope you have a lovely Christmas and New Year – Althon Ltd