{"product_id":"premium-upvc-true-union-diaphragm-valve-20-63mm-precision-flow-control-aquarium-industrial-fluid-isolation","title":"Premium UPVC True Union Diaphragm Valve (20-63mm) | Precision Flow Control | Aquarium \u0026 Industrial Fluid Isolation","description":"\u003cdiv style=\"background-color: #f8f9fa; padding: 10px; border-left: 4px solid #ff8c00; margin-bottom: 20px;\"\u003e\u003cp style=\"margin: 0;\"\u003e\u003cem\u003e🔄 Don't need micro-adjustments and just want a standard shut-off valve? Check out our \u003cstrong\u003e\u003ca href=\"https:\/\/atradesen.com\/collections\/upvc-pvc-valves\/products\/premium-sanking-upvc-true-union-ball-valve-20-63mm-150-psi-aquarium-flow-control-nsf-certified-double-disconnect\" style=\"color: #ff8c00; text-decoration: underline;\"\u003ePremium True Union Ball Valves\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/em\u003e\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003ePremium UPVC True Union Diaphragm Valve\u003c\/h2\u003e\u003cp\u003eExperience the ultimate in fluid isolation and precision flow control with the UPVC Diaphragm Valve from \u003cstrong\u003eAtradesen.com\u003c\/strong\u003e. Sporting a striking orange and dark grey industrial design, this advanced valve completely reimagines fluid dynamics. It is the absolute gold standard for handling corrosive marine saltwater, harsh industrial chemicals, and dialing in dead-silent aquarium sump drains.\u003c\/p\u003e\u003ch3\u003e🌟 Advanced Diaphragm Isolation Technology\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Fluid Isolation:\u003c\/strong\u003e Unlike standard valves, this uses a flexible internal diaphragm to physically separate the water from the upper mechanical driving gears. Your fluid NEVER touches the turning mechanism! This prevents corrosion, eliminates stem leaks, and ensures extreme safety for both your equipment and your livestock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Micro-Tuning:\u003c\/strong\u003e Turning the top handle pushes the diaphragm down gradually, allowing for infinitely precise, smooth adjustments to your water flow rate—perfect for tuning Herbie or BeanAnimal overflows.\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 or to replace the internal diaphragm pad without cutting any glued PVC pipes!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003e⚠️ Sizing \u0026amp; Connection Guide (Crucial!)\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eAvoid ordering the wrong size! Please read the Atradesen.com connection 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🚨 SIZING LOGIC (Inner Dia. matches Outer Dia.):\u003c\/strong\u003e The sizes listed in the dropdown menu (e.g., 25mm) refer to the \u003cb\u003eInner Diameter (I.D.)\u003c\/b\u003e of the two socket ends on the fitting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow It Works:\u003c\/strong\u003e These sockets are designed to sleeve \u003cb\u003eOVER\u003c\/b\u003e your rigid PVC pipes. Therefore, a DN20 (25mm I.D.) valve perfectly connects to a PVC pipe with a \u003cb\u003e25mm Outer Diameter (O.D.)\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e PVC waterproof adhesive\/glue MUST be used on the slip joints to secure your pipes permanently (glue not included).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atradesen","offers":[{"title":"DN15 (20mm I.D. | Fits 20mm O.D. Pipe)","offer_id":56666322501798,"sku":null,"price":42.0,"currency_code":"USD","in_stock":true},{"title":"DN20 (25mm I.D. | Fits 25mm O.D. Pipe)","offer_id":56666322534566,"sku":null,"price":55.0,"currency_code":"USD","in_stock":true},{"title":"DN25 (32mm I.D. | Fits 32mm O.D. Pipe)","offer_id":56666322567334,"sku":null,"price":70.0,"currency_code":"USD","in_stock":true},{"title":"DN32 (40mm I.D. | Fits 40mm O.D. Pipe)","offer_id":56666322600102,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true},{"title":"DN40 (50mm I.D. | Fits 50mm O.D. Pipe)","offer_id":56666322632870,"sku":null,"price":130.0,"currency_code":"USD","in_stock":true},{"title":"DN50 (63mm I.D. | Fits 63mm O.D. Pipe)","offer_id":56666322665638,"sku":null,"price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2588\/6118\/files\/Premium_UPVC_True_Union_Diaphragm_Valve_20-63mm_Precision_Flow_Control_Aquarium_Industrial_Fluid_Isolation-003.png?v=1781613150","url":"https:\/\/atradesen.com\/products\/premium-upvc-true-union-diaphragm-valve-20-63mm-precision-flow-control-aquarium-industrial-fluid-isolation","provider":"Atradesen","version":"1.0","type":"link"}