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Stainless Steel Dual Plate Check Valve - High-Quality China Suppliers and Factory for HVAC, Water Supply, and More

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Face to Face Standards: Compliant with API609, BS5155, DIN3202, and 1S05752 for reliable performance.

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Flange Types: Available in DIN, BS, UNI.ISO, ANSI, AS, and JIS to meet diverse installation requirements.

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Mounting Flange Standard: Meets 1S05211 for compatibility in various applications.

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Working Pressure Capacity: Designed for PN16 (200PSI) to ensure durability and reliability under pressure.

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Applications: Ideal for HVAC, Water Supply & Sewage, Food & Beverage, Chemical and Petrochemical Processing, Power and Utilities, Paper and Pulp, and Ship Building industries. Our products are sourced directly from trusted China suppliers and manufactured in our factory to guarantee quality and performance.

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    Description

    Stainless Steel Dual Plate Check Valve is a high-performance backflow prevention solution ideal for corrosive or demanding flow systems. Built with two spring-loaded plates, the valve opens with forward flow and closes rapidly upon reversal, ensuring system safety and minimizing water hammer.

    This stainless steel dual plate check valve features a wafer-type body for compact installation between flanges. Its corrosion-resistant stainless steel construction makes it suitable for chemical processing, marine pipelines, and water treatment systems where durability is critical.

    The dual plate design results in a lower pressure drop compared to traditional swing check valves, contributing to overall energy efficiency. The valve supports both horizontal and vertical upward flow installations and complies with API 594 and EN 12334 standards.

    Its lightweight structure allows for easy handling and quick installation, especially in tight spaces. Available in multiple sizes and pressure classes, the stainless steel dual plate check valve is tested for tight shutoff and long-term reliability.

    Choose this valve for environments requiring corrosion resistance, minimal maintenance, and consistent flow control without compromise.

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    Corrosion Resistant Full stainless steel construction for harsh and corrosive environments.
    Low Pressure Drop Dual plate design reduces energy loss versus traditional swing check valves.
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    Easy Installation Compact wafer-type body fits between flanges with minimal space required.
    API 594 & EN 12334 Compliant Meets international standards for design, testing, and performance.
    Specifications
    Nominal Pressure (MPa) 1.0 1.6
    Nominal Diameter (mm) 50–1000 50–1000
    Test Pressure (MPa) Shell 1.5 2.4
    Test Pressure (MPa) Seal 1.1 1.76
    Applicable Temperature 150°C
    Applicable Medium Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, Alkalis, etc.
    Operating Mode Manual, Worm Gear, Pneumatic, Electric, etc.
    Specifications
    Standards
    Design & Manufacture Flange Connection Face to Face Dimension Test & Inspection
    API 594 DIN PN10/16/25 API 594 API 598
    Material
    Body Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
    Plate Ductile Iron, Carbon Steel, Stainless Steel
    Spring Stainless Steel
    Hinge Pin Stainless Steel
    Plug Carbon Steel
    Body Bearing PTFE
    Spring Bearing PTFE
    Stop Pin Stainless Steel
    Eye Bolt Carbon Steel
    Body Seat NBR, EPDM, Viton, Neoprene
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    Frequently Asked Questions
    Q
    What is a stainless steel dual plate check valve used for?
    A stainless steel dual plate check valve is used to prevent backflow in piping systems. It is commonly applied in chemical processing, marine pipelines, water treatment, food processing, and oil & gas industries where corrosion resistance and reliable shutoff are essential.
    Q
    What pressure ratings are available for this dual plate check valve?
    The valve is available in nominal pressure ratings of 1.0 MPa and 1.6 MPa, with corresponding shell test pressures of 1.5 MPa and 2.4 MPa, and seal test pressures of 1.1 MPa and 1.76 MPa respectively.
    Q
    What size range does the stainless steel dual plate check valve come in?
    The valve is available in nominal diameters ranging from 50 mm to 1000 mm, covering both PN 1.0 and PN 1.6 pressure classes to suit a wide variety of pipeline applications.
    Q
    Which international standards does this valve comply with?
    This dual plate check valve is designed and manufactured in accordance with API 594, with flange connections per DIN PN10/16/25, face-to-face dimensions per API 594, and testing & inspection per API 598. It also complies with EN 12334 standards.
    Q
    Can this valve be installed in both horizontal and vertical pipelines?
    Yes, the stainless steel dual plate check valve supports both horizontal and vertical upward flow installations, providing flexible integration into various pipeline configurations without additional modification.
    Q
    What seat materials are available for the dual plate check valve?
    The body seat is available in multiple elastomer materials including NBR, EPDM, Viton, and Neoprene, allowing the valve to be matched to the specific media and temperature requirements of your application.

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