HDPE Flap Valves can be used in Surface, Sewer and Water Process applications. The most popular wall mounted type we offer are available from 100mm to 1500mm as standard with all sizes up , The drain flap valve are manufactured using modern materials and the latest manufacturing techniques to ensure the very best products are achieved in the most efficient manner. Due to the unique lightweight properties of the HDPE that is used to manufacture the flap valve, they are very easy to install in comparison to cast iron Flap gate. Flap check valve are a very traditional method of preventing back flow in pipelines, culverts and other applications to prevent flooding. The drain flap valve are manufactured using modern materials and the latest manufacturing techniques to ensure the very best products are achieved in the most efficient manner. Due to the unique lightweight properties of the HDPE that is used to manufacture the flap valve, they are very easy to install in comparison to cast iron flap gate. Features and Benifits Easy to Install, Responsive and very Reliable  Lightweight and High Strength Virtually maintenance free. Ultra Violet and impact resistant. Standard sizes available for immediate dispatch. Supplied complete with all seals and stainless steel fixings. We love hearing from our customers and value your feedback.Here are ways to contact us, 24 hours a day, 7 days a week.Email: Sales@flexible-joints.com, web: www.flexible-joints.com