{"product_id":"premium-upvc-single-union-spring-check-valve-32-63mm-horizontal-vertical-mount-non-return-valve-aquarium-plumbing","title":"Premium UPVC Single Union Spring Check Valve (32-63mm) | Horizontal \u0026 Vertical Mount Non-Return Valve | Aquarium Plumbing","description":"\u003cdiv style=\"background-color: #f8f9fa; padding: 10px; border-left: 4px solid #6c757d; margin-bottom: 20px;\"\u003e\u003cp style=\"margin: 0;\"\u003e\u003cem\u003e🔄 Using a low-power return pump? Spring valves create flow resistance. Choose our \u003cstrong\u003e\u003ca href=\"https:\/\/atradesen.com\/collections\/upvc-pvc-valves\/products\/premium-upvc-swing-check-valve-25-75mm-horizontal-vertical-flapper-non-return-valve-aquarium-anti-siphon\" style=\"color: #6c757d; text-decoration: underline;\"\u003eZero-Resistance Swing\/Flapper Check Valves\u003c\/a\u003e\u003c\/strong\u003e instead!\u003c\/em\u003e\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003ePremium UPVC Single Union Spring Check Valve\u003c\/h2\u003e\u003cp\u003eProtect your living room from catastrophic power-outage floods with the Heavy-Duty Spring-Loaded Check Valve from \u003cstrong\u003eAtradesen.com\u003c\/strong\u003e. Engineered for drinking water systems and marine reef sumps, this premium non-return valve features a powerful internal spring and a guided weighted core, ensuring lightning-fast closure to prevent water from back-siphoning.\u003c\/p\u003e\u003ch3\u003e🌟 Advanced Spring-Loaded Design \u0026amp; Convenience\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount in ANY Direction:\u003c\/strong\u003e Unlike gravity-dependent \"Ball\" or \"Swing\" check valves, the internal spring forces the valve shut instantly. This allows you to install this valve \u003cb\u003eHORIZONTALLY, VERTICALLY, or at ANY angle\u003c\/b\u003e with 100% reliable sealing!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuided Core Technology:\u003c\/strong\u003e Internal guide grooves prevent the sealing plunger from rattling or flipping, drastically reducing operational noise and preventing mechanical failures under high pressure (Rated up to 10kg \/ 150 PSI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Union Quick-Release:\u003c\/strong\u003e Features a threaded union nut on the top end. Easily detach the valve body for maintenance or cleaning without ever needing a saw to cut your glued PVC pipes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003e🚨 CRUCIAL INSTALLATION \u0026amp; WATER PUMP WARNINGS!\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eBecause this valve utilizes an internal spring, it requires a specific physical setup. Please read Atradesen.com's rules carefully:\u003c\/p\u003e\u003cul style=\"background-color: #fff3cd; padding: 15px 15px 15px 35px; border-radius: 5px; color: #856404;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e⚠️ REQUIRES A POWERFUL WATER PUMP:\u003c\/strong\u003e The internal spring creates \u003cb\u003eFlow Resistance (Head Pressure Loss)\u003c\/b\u003e. Your water pump must be strong enough to physically push the spring open! \u003cb\u003eDo NOT use this valve with low-wattage nano pumps or gravity drains\u003c\/b\u003e, as water will not flow through it!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e🚨 DIRECTIONAL ARROW:\u003c\/strong\u003e You MUST install the valve so the molded arrow points in the direction of your pump's water flow!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e🚨 SIZING LOGIC (Inner Dia. matches Outer Dia.):\u003c\/strong\u003e The sizes listed refer to the \u003cb\u003eInner Diameter (I.D.)\u003c\/b\u003e of the sockets, which sleeve \u003cb\u003eOVER\u003c\/b\u003e your rigid PVC pipes. PVC glue is required.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atradesen","offers":[{"title":"32mm I.D. (DN25)","offer_id":56690170265766,"sku":null,"price":2.63,"currency_code":"USD","in_stock":true},{"title":"40mm I.D. (DN32)","offer_id":56690170298534,"sku":null,"price":3.04,"currency_code":"USD","in_stock":true},{"title":"50mm I.D. (DN40)","offer_id":56690170331302,"sku":null,"price":5.12,"currency_code":"USD","in_stock":true},{"title":"63mm I.D. (DN50)","offer_id":56690170364070,"sku":null,"price":6.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2588\/6118\/files\/Premium_UPVC_Single_Union_Spring_Check_Valve_32-63mm_Horizontal_Vertical_Mount_Non-Return_Valve_Aquarium_Plumbing-009.png?v=1782210072","url":"https:\/\/atradesen.com\/products\/premium-upvc-single-union-spring-check-valve-32-63mm-horizontal-vertical-mount-non-return-valve-aquarium-plumbing","provider":"Atradesen","version":"1.0","type":"link"}