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0102030405
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Ductile Iron Dual Check Valve with Non-Return Spring - China Suppliers & Factory for Reliable Fluid Control

Discover our high-quality double disc check valve, available in durable ductile iron for a robust and cost-effective solution, and stainless steel for superior corrosion resistance. This product is designed to meet the needs of various pressure applications, making it an ideal choice for municipal water lines, industrial pipelines, and chemical transfer systems, Featuring advanced rubber seals, our check valve ensures tight backflow prevention, with a temperature tolerance ranging from -10°C to 90°C to maintain reliable performance. The innovative dual-disc design facilitates smooth fluid passage while minimizing pressure drop, and the inline mounting design ensures easy installation, As a leading factory and supplier in China, we adhere to ISO 7126 standards, guaranteeing consistent quality and performance in every valve we produce. Upgrade your systems with our dependable double disc check valve today!
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    Product Details

    Product Specification
    Product Name Check Valve Material Ductile Iron/Stainless Steel
    Type Double disc Medium Water/Sea water
    Size DN50-DN1200 Seal EPDM/NBR rubber
    Power Automatic Standard DIN/ANSI/GOST/JIS/BS
    Product Description

    As a key fluid control device, the core function of a check valve is to ensure that the fluid can only flow in one direction.

    The lift check valve is a common type. The disc moves up and down perpendicular to the direction of fluid flow. When the fluid flows forward, the disc is lifted up, enabling the fluid to pass. When the fluid flows in the reverse direction, the disc drops to close the passage under its own gravity.

    The pilot - operated check valve uses a pilot system to control the opening and closing of the main disc. It can respond quickly under a small pressure difference to effectively control the fluid. This type of check valve is widely used in some occasions with high requirements for control accuracy.

    Ductile Rion Dual Check Valve

    Thanks to their unique functions, check valves play an indispensable role in many industrial processes, effectively avoiding various problems caused by fluid back - flow.

    Ductile Rion Dual Check Valve (1)
    Ductile Rion Dual Check Valve (2)
    Ductile Rion Dual Check Valve (3)
    Frequently Asked Questions
    What is the core function of a check valve?
    The core function of a check valve is to ensure that fluid can only flow in one direction, which effectively avoids various problems caused by fluid back-flow in industrial processes.
    How does a lift check valve operate?
    In a lift check valve, the disc moves up and down perpendicular to the direction of fluid flow. When fluid flows forward, the disc is lifted up to let the fluid pass. When the fluid flows in the reverse direction, the disc drops under its own gravity to close the passage.
    What are the benefits of a pilot-operated check valve?
    A pilot-operated check valve uses a pilot system to control the opening and closing of the main disc. This allows it to respond quickly under a small pressure difference, making it highly effective for applications with strict control accuracy requirements.
    What sizes and standards are available for these check valves?
    These check valves are available in sizes ranging from DN50 to DN1200. They conform to various international standards including DIN, ANSI, GOST, JIS, and BS.
    What materials and seal types are used?
    The body of the check valve is constructed from Ductile Iron or Stainless Steel, and it uses high-quality EPDM or NBR rubber for the seal to ensure reliable performance.