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WCB/SS Single Disc Check Valve EPDM/NBR Triple Rubber Seals

WCB/SS Single Disc Check Valve EPDM/NBR Triple Rubber Seals
0102030405
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China Suppliers Factory Single Disc Check Valve EPDM/NBR Rubber for Water Supply and HVAC Applications

Introducing our high-quality single disc check valve, available in robust cast iron or durable stainless steel options, perfect for diverse operational needs. As a leading factory and suppliers in China, we ensure that our valves feature reliable EPDM and NBR seals for optimal performance. The EPDM seal is designed to withstand temperatures ranging from -10°C to 120°C and offers excellent weather resistance, while the NBR seal is specifically formulated to resist oils and hydrocarbons. Our streamlined single-disc design promotes smooth flow with minimal pressure loss, and the inline mounting feature ensures easy installation. This check valve is ideal for water supply, HVAC systems, and light industrial pipelines, complying with EN 593 standards for effective backflow prevention and low-maintenance operation. Trust us for your valve solutions as top suppliers from China
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    Product Details

    Product Specification
    Product Name Check Valve Material Carbon Steel / Stainless Steel
    Type Single disc Medium Water/Sea water
    Size DN50-DN1200 Seal EPDM/NBR rubber
    Power Automatic Standard DIN/ANSI/GOST/JIS/BS
    Product Description
    Single-disc check valves feature a streamlined structure centered on a single hinged valve disc, a design that sets them apart with minimal flow resistance. Unlike multi-disc counterparts, their one-piece disc reduces internal turbulence, enabling smoother fluid passage even in low-pressure pipelines. The disc is typically connected to a precision hinge, ensuring rapid response—closing instantly once reverse flow is detected to prevent media backtracking.

    Material selection for these valves is tailored to functional needs. For residential water systems, engineered plastic single-disc valves offer cost-effectiveness and corrosion resistance against tap water impurities. In light industrial settings, cast steel variants provide enhanced durability to withstand moderate pressure fluctuations. Some specialized models use food-grade stainless steel for beverage or pharmaceutical production, meeting hygiene standards while retaining the core single-disc advantage.

    Installation and usage are straightforward due to their compact design. They fit seamlessly in narrow spaces where multi-part valves are impractical, such as under-sink pipelines or small pump outlets. The key installation requirement is aligning the disc’s hinge direction with forward flow—no complex adjustments are needed. Their simple structure also means less maintenance: occasional cleaning of the disc surface and hinge area is sufficient to maintain performance, eliminating the need for frequent part replacements.

    WCBSS Single Disc Check Valve
    Their applications span daily and light industrial scenarios. They are essential in household water heaters to prevent cold water backflow into hot water lines, ensuring consistent temperature. In small-scale irrigation systems, they protect mini pumps from damage caused by water hammer, while their low flow resistance helps maintain efficient water distribution. They also find use in aquarium filtration setups, where the single disc’s gentle operation avoids disturbing aquatic life.
    WCBSS Single Disc Check Valve (1)
    WCBSS Single Disc Check Valve (2)
    WCBSS Single Disc Check Valve (3)
    Frequently Asked Questions
    What is the main advantage of a single-disc check valve?
    The main advantage is its streamlined structure with a single hinged valve disc, which minimizes internal turbulence and flow resistance, allowing smoother fluid passage even in low-pressure systems.
    Which materials are used for these check valves?
    They are available in Carbon Steel and Stainless Steel (including food-grade), cast steel for durability under pressure fluctuations, and engineered plastics for cost-effective corrosion resistance.
    Where are single-disc check valves typically installed?
    Due to their compact design, they are ideal for narrow spaces such as under-sink pipelines, small pump outlets, household water heaters, and small-scale irrigation systems.
    What is the critical requirement during installation?
    The key installation requirement is aligning the disc's hinge direction with the forward flow of the media. No complex adjustments are needed.
    How much maintenance do these valves require?
    They require very low maintenance. Occasional cleaning of the disc surface and hinge area is sufficient to maintain performance, eliminating the need for frequent part replacements.