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0102030405
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China Suppliers Brass Dual Check Valve Factory - Non-Return Valve with Rubber Seal for Reliable Backflow Prevention

This high-quality double disc check valve, crafted from durable brass, is designed for moderate-pressure systems and ensures exceptional corrosion resistance and mechanical strength. With reliable rubber sealing discs, it effectively prevents backflow and provides leak-tight performance, operating efficiently within a temperature range of -5°C to 80°C. The compact dual-disc design promotes smooth fluid flow with minimal pressure loss, making installation straightforward in inline applications. Perfect for water supply, HVAC systems, and light industrial pipelines, this product adheres to API 594 standards for low-maintenance and consistent operation. As a leading supplier and factory in China, we are committed to delivering superior quality check valves for diverse industrial needs
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    Product Details

    Product Specification

    Product Name Check Valve Material Brass
    Type Double disc Medium Water/Sea water
    Size DN50-DN1200 Seal Rubber
    Power Automatic Standard DIN/ANSI/GOST/JIS/BS

    Product Description

    Check valves are crucial types of valves in industrial systems. Their primary function is to prevent the back - flow of media, ensuring the safe and stable operation of the system.
    A common type is the swing check valve. It has a swingable disc. When the media flows in the forward direction, the disc is pushed open, allowing the media to pass through. However, when there is a tendency for the media to flow back, the disc quickly closes under the action of gravity and the reverse pressure of the media to prevent back - flow.
    The double - disc check valve consists of two semi - circular discs. When the fluid flows forward, the discs open and the fluid passes smoothly. Once the fluid tries to flow in the reverse direction, the two discs close rapidly. This structure makes the double - disc check valve small in size, light in weight and easy to install.
    Brass Dual Check Valve 1 (1)
    Check valves are widely used in fields such as water supply and drainage, and petrochemical industry, safeguarding the normal operation of various systems.
    Brass Dual Check Valve 1 (2)
    Brass Dual Check Valve 1 (3)
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    Frequently Asked Questions

    What is the primary function of a check valve?
    The primary function of a check valve is to prevent the back-flow of media, ensuring the safe and stable operation of the industrial system.
    What are the specifications of the brass double-disc check valve?
    It is made of brass with a rubber seal, supports sizes from DN50 to DN1200, operates automatically, and complies with DIN, ANSI, GOST, JIS, and BS standards.
    How does a swing check valve work?
    A swing check valve has a swingable disc. Forward media flow pushes the disc open to allow passage, while reverse flow tendencies cause the disc to close rapidly due to gravity and reverse pressure, preventing back-flow.
    What are the advantages of a double-disc check valve?
    It features two semi-circular discs that open and close rapidly. This specific structure makes the valve small in size, lightweight, and very easy to install.
    In which applications are check valves commonly used?
    Check valves are widely utilized in fields such as water supply and drainage, as well as the petrochemical industry, to safeguard system operations.