{"product_id":"premium-s-h-upvc-true-union-ball-check-valve-20-63mm-150-psi-vertical-non-return-valve-aquarium-anti-siphon","title":"Premium S.H UPVC True Union Ball Check Valve (20-63mm) | 150 PSI Vertical Non-Return Valve | Aquarium Anti-Siphon","description":"\u003cdiv style=\"background-color: #f8f9fa; padding: 10px; border-left: 4px solid #0056b3; margin-bottom: 20px;\"\u003e\u003cp style=\"margin: 0;\"\u003e\u003cem\u003e🚀 Need massive valves for commercial ponds or industrial mainlines? \u003cstrong\u003e\u003ca href=\"%E6%9B%BF%E6%8D%A2%E4%B8%BA%E6%96%B9%E6%A1%88B%E5%A4%A7%E5%B0%BA%E5%AF%B8%E9%93%BE%E6%8E%A5\" style=\"color: #0056b3; text-decoration: underline;\"\u003eClick here for our Heavy-Duty S.H Check Valves (75mm - 110mm)\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/em\u003e\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003ePremium S.H UPVC True Union Ball Check Valve\u003c\/h2\u003e\u003cp\u003eUpgrade your aquarium's safety protocol with the ultimate industrial-grade True Union Ball Check Valve from \u003cstrong\u003eAtradesen.com\u003c\/strong\u003e. Manufactured by S.H, this premium non-return valve features a gravity-operated ball design that eliminates metal springs, offering zero-resistance flow and an absolute watertight seal to prevent catastrophic back-siphoning during power outages.\u003c\/p\u003e\u003ch3\u003e🌟 Engineering Advantages \u0026amp; Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGravity Ball Design (Zero Resistance):\u003c\/strong\u003e Utilizes the water's own weight and a precision-guided ball to seal the valve. This completely eliminates restrictive metal springs, making it perfect for maximizing your return pump's flow rate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLathe-Machined Surfaces \u0026amp; Reinforced Seal:\u003c\/strong\u003e The contact surfaces of the socket and the sealing ring are precision lathe-machined to ensure absolute flatness. An added support ring prevents the gasket from deforming under extreme pressure!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Union Quick-Release:\u003c\/strong\u003e Features threaded union nuts on both ends. Easily detach the center body for maintenance without cutting glued pipes!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Metal-Free \u0026amp; Safe:\u003c\/strong\u003e Lead-free stabilizer formulation. Perfectly safe for drinking water and sensitive marine reef tanks (Max Pressure: 150 PSI).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003e🚨 CRUCIAL INSTALLATION \u0026amp; IMAGE TYPO WARNINGS!\u003c\/strong\u003e\u003c\/h3\u003e\u003cul style=\"background-color: #f8d7da; padding: 15px 15px 15px 35px; border-radius: 5px; color: #721c24; border: 1px solid #f5c6cb;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e⚠️ FACTORY IMAGE TYPO:\u003c\/strong\u003e Please ignore the \"Swing Check Valve\" text at the bottom of the manufacturer's photo! As stated in the top right corner of the image, this is a \u003cb\u003eBALL TYPE\u003c\/b\u003e check valve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e⚠️ VERTICAL INSTALLATION ONLY:\u003c\/strong\u003e Because it relies on gravity to drop the internal ball, \u003cb\u003eit MUST be installed strictly VERTICALLY!\u003c\/b\u003e If installed horizontally, it will fail to close and will leak!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizing Logic:\u003c\/strong\u003e The sizes listed (e.g., 25mm) refer to the \u003cb\u003eInner Diameter (I.D.)\u003c\/b\u003e of the sockets, which sleeve \u003cb\u003eOVER\u003c\/b\u003e matching PVC pipes. PVC glue is required.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atradesen","offers":[{"title":"20mm I.D. (DN15)","offer_id":56667084685478,"sku":null,"price":6.54,"currency_code":"USD","in_stock":true},{"title":"25mm I.D. (DN20)","offer_id":56667084718246,"sku":null,"price":8.95,"currency_code":"USD","in_stock":true},{"title":"32mm I.D. (DN25)","offer_id":56667084751014,"sku":null,"price":12.32,"currency_code":"USD","in_stock":true},{"title":"40mm I.D. (DN32)","offer_id":56667084783782,"sku":null,"price":19.21,"currency_code":"USD","in_stock":true},{"title":"50mm I.D. (DN40)","offer_id":56667084816550,"sku":null,"price":25.12,"currency_code":"USD","in_stock":true},{"title":"63mm I.D. (DN50)","offer_id":56667084849318,"sku":null,"price":40.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2588\/6118\/files\/Premium_S.H_UPVC_True_Union_Ball_Check_Valve_20-110mm_150_PSI_Vertical_Non-Return_Valve_Aquarium_Anti-Siphon-005.png?v=1781621732","url":"https:\/\/atradesen.com\/products\/premium-s-h-upvc-true-union-ball-check-valve-20-63mm-150-psi-vertical-non-return-valve-aquarium-anti-siphon","provider":"Atradesen","version":"1.0","type":"link"}