{"product_id":"v-g-compression-single-check-valve","title":"V\u0026G Compression Single Check Valve","description":"The V\u0026amp;G Compression Single Check Valve from Evolve is a vital safety component for any plumbing system, designed to ensure water flows in only one direction. By preventing reverse flow, this valve helps protect clean water supplies from contamination, making it a trusted choice for both domestic and commercial installations.\n\nThis valve is ideal for systems where there's a risk of backflow—such as appliances connected to the mains water supply or in central heating systems where cross-contamination must be avoided. It works quietly in the background, ensuring that water continues to flow in the correct direction while keeping your system safe and hygienic.\n\nInstallation couldn’t be easier. With compression fittings on both ends, there’s no need for soldering or heat. Just insert your copper pipe into the valve’s ends and tighten the compression nuts with a spanner. It’s clean, straightforward, and perfect for new installations or retrofits where time and accessibility are a concern.\n\nThe valve is available in both 15mm and 22mm sizes to suit a range of plumbing systems and comes WRAS approved (Approval Number: 1304908), ensuring it meets strict UK standards for use in potable water systems.\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003eWhat is the purpose of a single check valve?\u003c\/h4\u003e A single check valve allows water to flow in one direction only. It’s used to prevent backflow, which can carry contaminants into your clean water supply, making it essential for protecting water quality. \u003cbr\u003e \u003ch4\u003eCan this valve be used in both residential and commercial systems?\u003c\/h4\u003e Yes, the valve is suitable for a wide range of plumbing setups in both domestic and commercial properties. It’s commonly used with water heaters, washing machines, and other appliances where backflow protection is important. \u003cbr\u003e \u003ch4\u003eIs it difficult to install this check valve?\u003c\/h4\u003e Not at all. Thanks to its compression fitting design, you won’t need any specialist tools or soldering equipment. Just a pair of spanners and clean pipe ends are all you need for a secure, reliable connection.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/plumbing-supplies\"\u003eplumbing supplies\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/compression-fittings\"\u003ecompression fittings\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"V\u0026G","offers":[{"title":"15mm","offer_id":50802392695126,"sku":"142954","price":0.42,"currency_code":"GBP","in_stock":true},{"title":"22mm","offer_id":50802392727894,"sku":"142954","price":0.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/vg-compression-single-check-valve-3590730.jpg?v=1772662468","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/v-g-compression-single-check-valve","provider":"JJ Building Materials","version":"1.0","type":"link"}