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1/2′′ Flange&Thread Reduce Bore Duplex Stainless Steel F51 DBB Ball Valve

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The CHINA J-VALVES 1/2″ Flange & Thread Reduce Bore Duplex Stainless Steel F51 DBB Ball Valve is a high-performance Double Block and Bleed (DBB) ball valve, designed for industrial applications requiring high reliability and corrosion resistance. This valve is made of ASTM A182 F51 duplex stainless steel, featuring excellent corrosion resistance and high strength, and is particularly suitable for high-pressure environments in industries such as petroleum, natural gas, and chemical engineering. Its flange and thread connection methods ensure reliable and tight installation, and it is equipped with a manually operated handwheel for convenient on-site operation and maintenance.
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Quantity:
  • J-VALVES-BV-600

  • J-VALVES

  • 8481804090

3/4*1/2" Flange&Thread Reduce Bore Duplex Stainless Steel F51 DBB Ball Valve

Structural Features

  • Duplex Stainless Steel Material: The valve body is made of ASTM A182 F51 duplex stainless steel, with high strength and good corrosion resistance.

  • Flange and Thread Connections: Provides two connection methods—flange connection and thread connection, complying with ASME B16.5 and ASME B1.20.1 standards to ensure reliable and tight installation.

  • Reduce Bore Design: Adopts a reduce bore design to optimize the fluid flow path, reduce pressure loss, and improve flow control efficiency.

  • Floating Ball Design: The ball can float freely under the pressure of the medium, fitting tightly with the valve seat to form an excellent sealing effect.

  • Double Block and Bleed Function: Adopts a double-ball design to achieve dual isolation, ensuring no medium leakage during maintenance or overhaul. Equipped with a bleed port, it allows safe discharge of residual medium in the pipeline after isolation.

  • Fire Safety Design: Complies with API 607 standards, ensuring the valve can maintain sealing performance even in case of fire to prevent medium leakage.

  • Anti-Static Device: Built-in anti-static device effectively prevents static accumulation, reducing the risk of fire and explosion.

  • Stem Blow-Out Prevention Design: The stem adopts a blow-out prevention design to ensure operational safety.

  • Compact Design: Small in size and light in weight, facilitating installation and integration into existing systems.

Technical Parameters

  • Size: 3/4"*1/2" 

  • Pressure Rating: 600LB (PN100)

  • Temperature Range: -29℃ to +300℃

  • Material:

    • Valve Body: ASTM A182 F51

    • Ball: A182 F51

    • Stem: A182 F51

    • Sealing Material: PTFE, RPTFE

  • Connection Type: Flange connection (RF), Thread connection (NPT)

  • Operation Mode: Manual (handwheel operation)

  • Design Standards: API 608, ASME B16.34

  • Testing Standards: API 598

  • End-to-End Dimensions: Compliant with ASME B16.10 standards

Application Fields

  • Oil and 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 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, ensuring 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 controlling and isolating media such as water, oil, and gas.

Advantages and Value

  • High Reliability: The duplex stainless steel material and floating ball design ensure stable operation of the valve in high-pressure and high-temperature environments, reducing maintenance frequency and downtime.

  • High Safety: Fireproof and anti-static designs, along with reliable sealing performance, effectively reduce the risk of leakage and ensure the safety of personnel and equipment.

  • Easy Installation and Maintenance: Flange and thread connection methods simplify the installation process and facilitate maintenance and repair.

  • Wide Application Range: Multiple material options and a wide range of pressure and temperature make it adaptable to various complex working conditions and medium characteristics.

DBB Ball valvesDBB BALL valves.pdf

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