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40" 150LB WCB Carbon Steel Double Flap Wafer Check Valve

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This is a carbon steel double flap wafer check valve with a nominal diameter of 40 inches and a pressure rating of 150LB. It is manufactured from A216 WCB material. This valve is specially designed to meet the requirements of high-flow and large-diameter industrial fluid control. It has high strength, good mechanical properties and corrosion resistance, and is suitable for a variety of complex working conditions. Its butterfly design makes the valve have low resistance when opening and excellent sealing performance when closing. It is widely used in industries such as petroleum, natural gas, chemical engineering, and water treatment.
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40" 150LB WCB Carbon Steel Double Flap Wafer Check Valve


Technical Parameters

  • Nominal Diameter: 1/2"~48" (DN15~DN1200)

  • Pressure Rating: 150LB~2500LB (PN20~PN420)

  • Applicable Temperature: -29°C~425°C

  • Applicable Media: water, steam, oil products, natural gas, acid gases, etc.

  • Materials:

    • Valve Body: A216 WCB

    • Valve Flap: A216 WCB

    • Sealing Surfaces: Stainless steel (optional)

  • Connection Method: Butterfly flange connection, conforming to ASME B16.47 standard

  • Design Standards: API 594, ANSI B16.34

  • Face-to-Face Dimension: ASME B16.10

  • Testing Standard: API 598


Product Features

  • High-Strength Material: A216 WCB carbon steel has good mechanical properties and corrosion resistance, and is suitable for various working conditions.

  • Reliable Sealing: With the double flap butterfly design, it has excellent sealing performance and a long service life.

  • Low Resistance: The butterfly design makes the valve have low resistance when opening, which is suitable for high-flow working conditions.

  • Conformance to Standards: Its design and manufacture comply with API 594 and ANSI B16.34 standards, and its testing complies with API 598 standard.

  • Multiple Options: Electric or pneumatic actuators can be equipped according to customer needs to achieve automated control.

  • Low Noise Design: The valve flap is optimized in design to reduce the water hammer effect and lower the noise.


Product Advantages

  • Strong Corrosion Resistance: The corrosion resistance of A216 WCB material makes it suitable for a variety of chemical media.

  • High Reliability: The double flap butterfly design ensures that the valve can work reliably even under high pressure.

  • Easy Maintenance: The valve has a simple structure, which is convenient for maintenance and inspection.

  • Wide Application Range: It is applicable to a variety of industrial fields and can meet the needs of different working conditions.


Application Areas

  • Petroleum and Natural Gas Industry: Used in oil and gas transmission pipelines to control the flow of media such as oil and natural gas.

  • Chemical Industry: Suitable for the control of corrosive media in chemical production.

  • Water Treatment Industry: Used in water supply and drainage systems to control the opening and closing of water flow.

  • Energy Industry: In the cooling water systems and steam systems of power plants, it ensures the reliable transmission of media.

  • Food and Pharmaceutical Industry: Suitable for the control of clean fluids in the food and pharmaceutical industries.


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