{"product_id":"22-mm-compression-single-check-valve","title":"22mm Compression Single Check Valve – WRAS Approved Brass Non-Return Valve","description":"\u003cdiv style=\"font-family: Arial, sans-serif; color: #1a1a1a; max-width: 900px; line-height: 1.7;\"\u003e\n\n  \u003c!-- Intro --\u003e\n  \u003cp style=\"font-size: 15px;\"\u003eThe \u003cstrong\u003eH-10103\u003c\/strong\u003e is a 22mm compression single check valve (non-return valve) in \u003cstrong\u003eWRAS-approved brass\u003c\/strong\u003e. It allows water to flow in one direction only, preventing backflow and the risk of contamination from reverse flow in potable and heating pipework. Both ends are \u003cstrong\u003e22mm compression\u003c\/strong\u003e — no soldering or specialist tools required, just tighten the nuts onto the pipe.\u003c\/p\u003e\n\n  \u003c!-- Badge strip --\u003e\n  \u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0;\"\u003e\n    \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eMPN: H-10103\u003c\/span\u003e\n    \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eWRAS Approved — 1304908\u003c\/span\u003e\n    \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003e22mm Compression × Compression\u003c\/span\u003e\n    \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eBrass Body\u003c\/span\u003e\n    \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eSpring Loaded\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Specifications --\u003e\n  \u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\n  \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 24px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background: #008377CF; color: #fff;\"\u003e\n        \u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #006b62;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #006b62;\"\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background: #f0faf9;\"\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eMPN\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eH-10103\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eEAN \/ GTIN\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e6970472051258\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f0faf9;\"\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eConnection\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e22mm compression × 22mm compression\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eBody material\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eBrass\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f0faf9;\"\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eValve type\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eSpring-loaded single check (non-return)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eMax working pressure\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e10 Bar\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f0faf9;\"\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eTemperature range\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e-10°C to +85°C\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eWRAS approval number\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e1304908\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f0faf9;\"\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eGross weight (inc packaging)\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e0.14 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eWarranty\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e1 year\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- Features grid --\u003e\n  \u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eKey Features\u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; margin-bottom: 24px;\"\u003e\n    \u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377CF; font-size: 14px;\"\u003ePrevents backflow contamination\u003c\/p\u003e\n      \u003cp style=\"margin: 0; font-size: 13px;\"\u003eThe spring-loaded disc opens under forward flow pressure and closes immediately when flow stops or reverses — blocking any risk of contaminated water being drawn back into the supply. Required by the Water Supply (Water Fittings) Regulations in any installation where backflow risk exists.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377CF; font-size: 14px;\"\u003eWRAS approved — potable water safe\u003c\/p\u003e\n      \u003cp style=\"margin: 0; font-size: 13px;\"\u003eWRAS approval number 1304908 confirms compliance with the Water Supply (Water Fittings) Regulations 1999 for use with potable (drinking) water. Suitable for cold mains, domestic hot water, and expansion vessel connections.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377CF; font-size: 14px;\"\u003eTool-free compression fitting\u003c\/p\u003e\n      \u003cp style=\"margin: 0; font-size: 13px;\"\u003e22mm compression connections on both ends — no soldering, no heat, no flux. Hand-tighten the nuts onto the pipe and finish with a spanner. Can be installed on copper or plastic pipe using the appropriate olive type.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Applications callout --\u003e\n  \u003cdiv style=\"background: #f0faf9; border-left: 4px solid #008377CF; padding: 12px 16px; margin: 0 0 24px; font-size: 14px; border-radius: 0 4px 4px 0;\"\u003e\n    \u003cstrong style=\"color: #008377CF;\"\u003eTypical applications:\u003c\/strong\u003e Cold mains feed to unvented cylinders and combination boilers, expansion vessel connections, solar thermal and heat pump cold feeds, pump protection in heating circuits, and any 22mm pipework where backflow prevention is required by the Water Regulations or manufacturer's installation instructions.\n  \u003c\/div\u003e\n\n  \u003c!-- Install note --\u003e\n  \u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f59e0b; padding: 12px 16px; margin: 0 0 24px; font-size: 14px; border-radius: 0 4px 4px 0;\"\u003e\n    \u003cstrong style=\"color: #b45309;\"\u003eInstallation note:\u003c\/strong\u003e Install with the flow arrow on the valve body pointing in the direction of intended flow. The valve must not be installed in the reverse direction. Do not install where the valve may be subjected to pressure exceeding 10 Bar.\n  \u003c\/div\u003e\n\n  \u003c!-- Related products footer --\u003e\n  \u003cdiv style=\"background: #008377CF; color: #fff; padding: 16px 20px; border-radius: 4px; margin-top: 32px; font-size: 14px; line-height: 1.9;\"\u003e\n    \u003cstrong\u003eRelated Products:\u003c\/strong\u003e\u003cbr\u003e\n    15mm Compression Single Check Valve | 22mm Compression Ball Valve | 22mm Compression Isolating Valve | Zilmet Hydro-Pro 2L Potable Expansion Vessel | 3 Bar Inlet Control Group\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Evolve","offers":[{"title":"Default Title","offer_id":63899811447133,"sku":"H-10103","price":2.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/GBF22mmCompressionSingleCheckValve.jpg?v=1773812067","url":"https:\/\/qualityheating.co.uk\/products\/22-mm-compression-single-check-valve","provider":"AIZO Quality Heating","version":"1.0","type":"link"}