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API 602 Standard Welded Flange A105 Forged Swing Check Valve

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The CHINA J-VALVES API 602 Standard Welded Flange A105 Forged Swing Check Valve is a high-performance swing check valve, specifically designed for medium and high-pressure working conditions in industries such as oil, natural gas, and chemical engineering. Manufactured from high-quality A105 forged steel, this valve features high strength and good corrosion resistance, enabling it to adapt to a variety of harsh operating environments. Its welded flange connection and swing-type structure design ensure the valve's superior sealing performance and long-term stable operation, making it widely applicable in pipeline systems that require prevention of medium backflow.
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  • Forged Steel Check Valve

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Structural Features

  • A105 Forged Steel Material: The valve body is made of A105 forged steel, which has high strength and good corrosion resistance. It can resist the erosion of various chemical media and extend the service life of the valve.

  • Welded Flange Connection: Adopts a welded flange connection method that complies with the API 602 standard, ensuring reliable installation and sealing performance.

  • Swing-Type Structure: The valve disc adopts a swing-type design, enabling smooth opening and closing, reducing fluid impact, and is suitable for medium flow rate conditions.

  • Bidirectional Sealing: The unique sealing design ensures reliable sealing during both forward and reverse flow, effectively preventing medium leakage and ensuring the safe operation of the pipeline system.

  • Fire Safety Design: Compliant with the API 607 standard, the valve can maintain sealing performance even in case of fire, preventing medium leakage and ensuring system safety.

  • Anti-Static Device: Equipped with a built-in anti-static device, it effectively prevents static accumulation, reduces the risk of fire and explosion, and is particularly suitable for the control of flammable and explosive media.

  • Compact Design: With small size and light weight, it is easy to install and integrate into existing systems, saving space.

  • Multiple Operation Modes: It can be equipped with manual, pneumatic, electric, or hydraulic actuators to achieve remote automatic control.

Technical Parameters

  • Nominal Diameter: 1/2″ to 2″ (DN15 to DN50)

  • Pressure Class: 150LB to 2500LB (PN10 to PN420)

  • Temperature Range: -29℃ to +425℃

  • Materials:

    • Valve Body: A105 Forged Steel

    • Valve Disc: A105 Forged Steel + Hard Alloy (e.g., Stellite No.6)

    • Valve Stem: Stainless Steel (304/316)

    • Sealing Material: PTFE, RPTFE

  • Connection Method: Welded Flange Connection (compliant with API 602 standard)

  • Operation Mode: Automatic

  • Design Standard: API 602, ASME B16.34

  • Testing Standard: API 598, ISO 5208

  • Fire Protection Design: API 607

  • Applicable Media: Water, Oil, Gas, Chemical Media, etc.

Application Scenarios

  • Oil and Natural Gas Industry: Used in oil and gas field exploration, gathering, transportation, and processing systems to ensure reliable isolation and control of media.

  • Chemical Industry: Suitable for the transportation and reaction systems of various chemical media, preventing medium leakage and ensuring production safety.

  • Pharmaceutical Industry: Applied in pipeline systems during pharmaceutical production to ensure medium isolation and cleanliness in the drug manufacturing process.

  • Food and Beverage Industry: Meets food-grade requirements and is used in pipeline systems for food and beverage production to ensure hygiene and safety.

  • HVAC: Used in cooling water systems, hot water systems, etc., to ensure efficient operation of the system.

  • General Industrial Applications: Suitable for the control and isolation of media such as water, oil, and gas.

Advantages and Value

  • High Reliability: The A105 forged steel material and swing-type design ensure the valve operates stably in medium-high pressure and medium-high temperature environments, reducing maintenance frequency and downtime.

  • High Safety: The fire protection, anti-static design, and reliable sealing performance effectively reduce the risk of leakage, safeguarding the safety of personnel and equipment.

  • Automatic Operation: It operates automatically without external power, reducing operating costs and maintenance workload.

  • Easy Installation and Maintenance: The welded flange connection simplifies the installation process and facilitates maintenance and overhaul.

  • Wide Applicability: Multiple material options and a broad range of pressure and temperature allow it to adapt to various complex working conditions and medium characteristics.

Competitive Advantage:

  • On Samples Buyer bear the air fee, but this fee will be reduced from order directly

  • On After Sales Free replacement if there is any quality problem

  • On Delivery Never delay delivery time

  • On Materials Ensure material pure

  • Ensure material pure

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