{"product_id":"ac-condensate-drain-check-valve-one-way-non-return-leenkea","title":"AC Condensate Drain Check Valve – One-Way Non-Return | LEENKEA","description":"\n\u003ch2\u003eLEENKEA AC Condensate Drain Check Valve – One-Way Non-Return Flow\u003c\/h2\u003e\n\u003cp\u003eKeep your air conditioning drainage system running smoothly with the \u003cstrong\u003eLEENKEA Condensate Drain Pipe Check Valve\u003c\/strong\u003e. Engineered for central, wall-mounted, and cabinet AC units, this one-way non-return valve ensures condensate flows in a single direction — eliminating backflow and keeping unwanted odours out of your living or working space.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Compatibility:\u003c\/strong\u003e Suitable for central air conditioners, wall-mounted units, cabinet units, ceiling units, and duct units — one solution for virtually any AC drainage setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOdour Prevention:\u003c\/strong\u003e Effectively blocks backflow of sewer gases and stale air, maintaining a clean, fresh environment indoors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable PC Construction:\u003c\/strong\u003e Crafted from environmentally friendly polycarbonate (PC) material offering high strength, weather resistance, and long-term dimensional stability — no warping or deformation over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlow-Closing Design:\u003c\/strong\u003e The slow-closing mechanism allows smooth single-direction flow while completely preventing backflow, optimising drainage efficiency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Pressure Rating:\u003c\/strong\u003e Rated at 1.23 MPa nominal pressure for dependable, reliable performance across a wide range of installation conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransparent Body:\u003c\/strong\u003e Clear construction lets you visually inspect flow and valve condition without disassembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLEENKEA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePC (Polycarbonate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.23 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType A Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e78 mm – For wall-mounted \/ cabinet units\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType B Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e92 mm – For central \/ ceiling \/ duct units\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType C Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e134 × 75 mm (blue) – For central \/ ceiling \/ duct units\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStructure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCheck (One-Way \/ Non-Return)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Condensate Drain Check Valve (size\/type as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType A (78 mm):\u003c\/strong\u003e Wall-mounted and cabinet air conditioning units\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType B (92 mm):\u003c\/strong\u003e Central air conditioners, ceiling units, and duct units\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType C (134 × 75 mm, blue):\u003c\/strong\u003e Central air conditioners, ceiling units, and duct units\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProduct colour may vary slightly from images due to monitor brightness and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow ±1–2 mm manual measurement tolerance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-inch-threaded-brass-ball-valve-water-gas-oil-flow-control\"\u003e1-Inch Threaded Brass Ball Valve – Water, Gas \u0026amp; Oil Flow Control\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-1-4-inch-adjustable-washbasin-siphon-trap-leak-proof-silicone-seal\"\u003e1-1\/4\" Adjustable Washbasin Siphon Trap | Leak-Proof Silicone\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on safe HVAC drainage practices, refer to the \u003ca href=\"https:\/\/www.epa.gov\/indoor-air-quality-iaq\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. EPA Indoor Air Quality resource\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of air conditioning systems is this condensate drain check valve compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The LEENKEA condensate drain check valve is compatible with central air conditioners, wall-mounted mini-split units, cabinet units, ceiling-mounted units, and duct systems. Choose Type A (78 mm) for wall-mounted\/cabinet units, or Type B (92 mm) \/ Type C (134×75 mm) for central, ceiling, and duct units.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does a one-way check valve prevent odours in my AC drain line?\u003c\/h4\u003e\n\u003cp\u003eA: A one-way (non-return) check valve allows condensate water to flow out through the drain pipe in a single direction only. When there is no active flow, the valve closes, forming a seal that blocks sewer gases and stale air from travelling back up through the drain pipe and into your room.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the valve easy to install without professional help?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The LEENKEA check valve is designed for straightforward installation. Simply select the correct size for your unit (A, B, or C), insert the valve in-line with your existing condensate drain hose, and ensure directional flow arrows point away from the AC unit. No special tools are required for most standard installations.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What material is the valve made from, and is it durable?\u003c\/h4\u003e\n\u003cp\u003eA: The valve is made from high-grade polycarbonate (PC), an environmentally friendly thermoplastic known for its high impact strength, weather resistance, and dimensional stability. It is engineered to withstand a nominal pressure of 1.23 MPa without deforming, making it suitable for long-term use.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of air conditioning systems is this condensate drain check valve compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The LEENKEA condensate drain check valve is compatible with central air conditioners, wall-mounted mini-split units, cabinet units, ceiling-mounted units, and duct systems. 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