--- product_id: 55321399 title: "Horizontally Assembled Inline Anti Flood 50mm Backwater Check Valve Backflow Prevention" brand: "karmat" price: "Β£57.24" currency: GBP in_stock: true category: "Karmat" url: https://www.desertcart.co.uk/products/55321399-horizontally-assembled-inline-anti-flood-50mm-backwater-check-valve-backflow store_origin: GB region: United Kingdom --- # Chromium-nickel stainless steel fasteners Eco-friendly polypropylene body 50mm corrosion-resistant valve Horizontally Assembled Inline Anti Flood 50mm Backwater Check Valve Backflow Prevention **Brand:** karmat **Price:** Β£57.24 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Stop floods before they start β€” protect your space like a pro! ## Quick Answers - **What is this?** Horizontally Assembled Inline Anti Flood 50mm Backwater Check Valve Backflow Prevention by karmat - **How much does it cost?** Β£57.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/55321399-horizontally-assembled-inline-anti-flood-50mm-backwater-check-valve-backflow) ## Best For - karmat enthusiasts ## Why This Product - Trusted karmat brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last:** Durable chromium-nickel stainless steel fasteners resist rust and wear. - β€’ **Eco-Smart Design:** Made from non-toxic, corrosion-resistant polypropylene for long-term reliability. - β€’ **Floodproof Your Space:** Advanced anti-backflow tech shields interiors from sewage flooding. - β€’ **Certified Peace of Mind:** Meets EN 13564-1 standards and proudly bears the CE mark for quality assurance. - β€’ **Universal Horizontal Fit:** Easily mounts on 50mm horizontal sewage pipes with secure wall brackets. ## Overview The Karmat 50mm Horizontally Assembled Inline Anti Flood Backwater Check Valve is a certified, eco-friendly plumbing valve designed to prevent sewage backflow and flooding. Featuring a corrosion-resistant polypropylene body and chromium-nickel stainless steel fasteners, it installs horizontally on 50mm sewage pipes with wall brackets, protecting multiple connected facilities simultaneously. Compliant with EN 13564-1 standards and CE marked, it offers durable, reliable flood prevention for modern buildings. ## Description Anti-flood devices protect interiors from flooding caused by sewage backflow. Karmat non-return valve 50mm is an ideal solution where it is impossible to install a non-return valve to protect the whole building e.g. in an apartment block. Advantages - flap cover, and all fasteners (screws, nuts, washers) are made of chromium-nickel stainless steel type 0h18n9 - the non-return valve is made of ecological polypropylene, a non-toxic material, resistant to corrosion and chemical agents - to produce gaskets the highest quality of flexible materials with increased resistance to weathering and aging, have been used - Non-return valves 50mm meet requirements of the standard EN 13564-1 and they are marked with the CE mark. The design is registered in the Patent Office. Features: - Installed onto sewer pipes 50mm The non-return valve ΓΈ 50 in version A is fitted in the horizontal course of ΓΈ 50 sewage pipework attached to the wall by means of brackets. A non-return valve installed in such a way can protect several facilities at the same time if they are connected to the same sewage system such as a bath or shower base traps. ## Features - Anti-flood devices protect interiors from flooding caused by sewage backflow; - Fitted in the horizontal course of 50mm sewage pipework attached to the wall by means of brackets; - A non-return valve installed in such a way can protect several facilities at the same time; - Flap cover, and all fasteners (screws, nuts, washers) are made of chromium-nickel stainless steel; ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00QU3WBAI | | Best Sellers Rank | 166,353 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 68 in Garden Drainage Pipes 1,430 in Pipes | | Brand | Karmat | | Connector Type | Welded | | Customer Reviews | 5.0 5.0 out of 5 stars (2) | | Exterior Finish | Stainless Steel | | Inlet Connection Size | 50 Millimeters | | Inlet Connection Type | Sweat | | Item Weight | 0.15 Kilograms | | Manufacturer | Karmat | | Material | Polypropylene (PP) | | Model Number | ddae4eb2-3dec-4861-bdbd-5f5f2ca09f21 | | Number of Ports | 2 | | Outlet Connection Size | 50 Millimeters | | Outlet Connection Type | Sweat | | Part Number | 449a | | Size | 50mm | | Specification Met | EN 13564-1 | | Thread Size | 50mm | | Unit Count | 1.0 count | | Valve Type | Lift Check Valve | ## Product Details - **Brand:** Karmat - **Exterior finish:** Stainless Steel - **Inlet connection size:** 50 Millimeters - **Inlet connection type:** Sweat - **Material:** Polypropylene (PP) - **Number of Packs:** 1 - **Number of ports:** 2 - **Outlet connection size:** 50 Millimeters - **Outlet connection type:** Sweat - **Specification met:** EN 13564-1 ## Images ![Horizontally Assembled Inline Anti Flood 50mm Backwater Check Valve Backflow Prevention - Image 1](https://m.media-amazon.com/images/I/41HISos52lL.jpg) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/55321399-horizontally-assembled-inline-anti-flood-50mm-backwater-check-valve-backflow](https://www.desertcart.co.uk/products/55321399-horizontally-assembled-inline-anti-flood-50mm-backwater-check-valve-backflow) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-27*