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ASME B16.34 Double Block And Bleed Valve

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The CHINA J-VALVES ASME B16.34 Double Block And Bleed Valve is a high-performance double block and bleed valve (DBB valve) specifically designed for high-pressure working conditions in industries such as oil, natural gas, and chemical engineering. Compliant with the ASME B16.34 standard, this valve features high reliability and safety, enabling effective isolation and control of the flow of media in pipelines. Its unique double blocking and bleeding functions ensure that the media inside the pipeline can be discharged safely during maintenance and overhaul processes, while preventing media backflow to safeguard the safety of operators.
Availability:
Quantity:
  • 2“-56”

  • J-VALVES

ASME B16.34 Double Block And Bleed Valve

Structural Features

  • Double Blocking Function: The valve is designed with two independent blocking balls, enabling double isolation to ensure the medium in the pipeline is completely cut off.

  • Bleeding Function: The valve has a built-in bleeding channel, which can automatically discharge the pressure in the valve cavity when the valve is closed, preventing pressure accumulation and ensuring operational safety.

  • Compact Design: The integrated design reduces installation space and weight, while minimizing potential leakage points and improving the overall safety of the system.

  • Multiple Material Options: The valve body and valve core can be made of various materials (such as carbon steel, stainless steel, alloy steel, etc.) to adapt to different medium and working condition requirements.

  • Fire-Safe 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 controlling flammable and explosive media.

  • Low-Leakage Design: Advanced sealing technology is adopted to ensure the valve maintains a low leakage rate during long-term use, meeting environmental protection requirements.

  • Multiple Connection Methods: Various connection methods such as flange connection and threaded connection are available to meet different engineering needs.

Technical Parameters

  • Size Range: 2″ to 56″ (DN50 to DN1400)

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

  • Temperature Range: -29℃ to +200℃

  • Materials:

    • Valve Body: Carbon steel (WCB), stainless steel (304/316), alloy steel

    • Ball: Stainless steel (304/316)

    • Stem: Stainless steel (304/316)

    • Sealing Material: PTFE, RPTFE

  • Connection Methods:

    • Flange connection (compliant with ASME B16.5 standard)

    • Threaded connection (compliant with ASME B1.20.1 standard)

  • Design Standards: ASME B16.34, API 600

  • Testing Standards: API 598, ISO 5208

  • Fire-Safe Design: API 607

  • Applicable Media: Oil, natural gas, water, steam, chemical media, etc.

Application Scenarios

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

Advantages and Value

  • High Reliability: The double blocking function and bleeding design ensure the valve operates stably in high-pressure, medium-to-high temperature environments, reducing maintenance frequency and downtime.

  • High Safety: Fire-resistant and anti-static designs, along with reliable sealing performance, effectively reduce leakage risks and protect the safety of personnel and equipment.

  • Automated Operation: Multiple actuator options are available to realize remote control and automated operation, improving system flexibility and safety.

  • Easy Installation and Maintenance: The compact design simplifies the installation process and facilitates maintenance and overhaul.

  • Wide Applicability: Multiple material options and a broad range of pressure and temperature ratings enable adaptation to various complex working conditions and medium characteristics.

Note: All the data should be confirmed with the approved drawings of manufacturer.

 

Tips:

     We also manufacture other type valves, as butterfly valve, check valve, globe valve, Y strainer, sanitary butterfly valve, sanitary ball and so on.

     Any item meets your interest, anything confused you, pls keep me posted, let's talk more.

 

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  • 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

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