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China-Made J-Valves ANSI Class 600 6 inch Forged Steel A105 Gear Operation RTJ Flaneg End Double Block and Bleed Ball Valve

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Our ANSI Class 600, 6 - inch forged steel A105 double block and bleed ball valve is a top - tier industrial solution expertly crafted from forged steel A105, offering high strength and durability. Its gear operation mechanism allows for smooth and effortless control even in high - pressure situations. The RTJ (Ring Type Joint) flange end design ensures a tight and reliable seal, preventing any leakage. As a double block and bleed valve, it provides dual isolation and the ability to vent trapped media, enhancing safety and system integrity. Complying with ANSI Class 600 standards, it meets the strict requirements of various industries and is ideal for applications where precise flow control and reliable shut - off are essential.
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  • J-VALVES-DBB-032401

  • J-VALVES

  • 8481804090

Premium China-Made J-VALVES: Your Ideal Choice for Industrial Fluid Control

Product Introduction


This ANSI Class 600, 6 - inch forged steel A105 DBB ball valve features high - strength forged steel construction, ensuring long - term durability. The gear operation enables easy and precise control. The RTJ flange end guarantees a leak - proof seal. With double block and bleed functionality, it provides reliable isolation and media venting, meeting strict industry standards for enhanced safety and system efficiency.



Product Name 6 inch 600LB Forged A105 Gear Operation Double Block and Bleed Ball Valve
Material A105/F304/F316/F304L/F316L/F51/F53/F55
Pressure 150LB/300LB/600LB/900LB/1500LB/2500LB,PN16/PN25/PN40,10K/20K
Size

2 inch~ 60 inch（DN25~DN1500)
End Connection RF/RTJ/BW/SW
Working Temp Soft seat for -29°C~200°C Woring Temperature
Mode of operation

Lever & Gear
Suitable Medium Water,Natural Gas,Oil and some corrosive liquid
Features Fire safe, anti-static device, Blow-out Froof Stem


I. A105 Forged Steel: Endowing Ball Valves with Excellent Performance and Long - lasting Durability

  • This ANSI Class 600, 6 - inch forged steel A105 Double Block and Bleed (DBB) ball valve is crafted from high - quality forged steel A105. Steel A105 is renowned for its outstanding mechanical properties. It boasts excellent strength, capable of withstanding pressures of up to several thousand pounds without deformation, which ensures the valve operates extremely stably in high - pressure systems. Meanwhile, its good toughness guarantees that the valve won't easily crack or break when faced with harsh working conditions such as rapid temperature changes and mechanical impacts.


  • During long - term use, this high - quality material can resist corrosion and erosion from various chemicals. Even in a chemical environment filled with corrosive media, the valve can maintain good performance. Therefore, using this valve can significantly extend the service life of the equipment, reduce the frequent replacement costs and downtime caused by valve damage, and save a large amount of human and material resources for enterprises.


II. Efficient Gear Operation: Easily Control the Opening and Closing of Ball Valves

  • The valve is equipped with a gear - operating device, which brings great convenience to operators. Traditional manual operation methods often require operators to exert a great deal of physical strength when dealing with large - sized valves or high - pressure environments, and it is also difficult to ensure the operation accuracy. However, the gear - operating device of this valve completely changes this situation.


  • Through the transmission of gears, operators only need to gently turn the handwheel to easily open and close the valve. This operation method is not only labor - saving but also enables precise flow control. In some technological processes with extremely strict flow requirements, operators can precisely control the valve opening by fine - tuning the gears, thus ensuring the stable operation of the system. In addition, the gear - operating device also has good feedback performance, allowing operators to clearly understand the working state of the valve through the sense of touch and detect potential problems in a timely manner.


III. Zero - leakage Guarantee: The Ultimate Presentation of Ball Valve Sealing Performance

  • The RTJ (Ring Type Joint) flange end design provides reliable sealing for the valve. The RTJ flange is a high - precision sealing connection method that uses a special annular metal gasket to fit tightly with the flange face of the pipeline. During the installation process, through the tightening action of bolts, the annular gasket will deform to a certain extent, filling the tiny gaps between the flange faces and forming a leak - free sealing environment.


  • This sealing design is particularly important in high - pressure and high - risk working environments. In industries such as oil and natural gas, once a medium leaks, it will not only cause energy waste but may also trigger serious safety accidents such as fires and explosions. The valve with an RTJ flange end can effectively avoid these problems and ensure the safe and stable operation of the entire system. Moreover, this sealing method also has good corrosion resistance and anti - aging performance, which can maintain the sealing effect during long - term use.


IV. Double Insurance: The "Top - level" Presentation of the Safety Performance of DBB Ball Valves

  • As a Double Block and Bleed ball valve, one of its greatest advantages is the double isolation and bleeding functions. The two valve seats can separately block the media from the upstream and downstream, forming a double safety barrier. Under normal working conditions, the two valve seats seal simultaneously to ensure that the media will not leak outside the valve. When maintenance or overhaul is required, operators can isolate the valve from the upstream and downstream pipelines by closing the two valve seats, thus ensuring the safety of maintenance work.


  • Meanwhile, the bleeding port in the middle of the valve can discharge the media in the valve cavity. In some special situations, such as when the pressure of the media in the valve cavity is too high or the media changes abnormally, the bleeding port can promptly discharge the excess media, preventing the valve from being damaged or a safety accident from occurring due to excessive pressure in the valve cavity. This double - safety design makes the valve widely used in industries with extremely high safety requirements, such as oil, chemical, and natural gas industries.


V. Exceptional Performance Assurance: The Power of Strict Standard Compliance

  • This valve strictly adheres to the ANSI Class 600 standard, which means it has undergone strict quality control during the design, manufacturing, and testing processes. The ANSI standard is a widely recognized international industrial standard that details various aspects of the valve, including dimensions, pressure ratings, material properties, and sealing performance.


  • Valves that follow this standard have higher quality assurance and universality. Globally, whether in the domestic or international market, this valve can meet the needs of various engineering projects. This makes users more confident when selecting valves, without worrying about compatibility issues caused by the valve not meeting the standards. At the same time, strict standard compliance also reflects the manufacturer's high - level emphasis on product quality, providing users with a reliable solution.


1

Technical Standards

1.Design & Manufacture standard：API 6D
2.Pressure & Temperature standard：ASME B16.25
3.Face to face dimension standard： ANSI B16.10
4.Ends Connection standard：ANSI B16.5
5.Fire safety according to API 607, API 6FA
6.Test & Inspect standard： API 598, API6D
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FAQs
  • 1.How to guarantee your quality? When we install, if there is some quality problems, how to solve it?
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    We have QC department, quality inspector will check every step when processing and make reports to clients for checking. If any quality problems, we will check and reply you within 24 hours to solve it. Please contact us for any quality problems.
  • 2.What's the temperature and pressure for valves?
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    For metal seat, temperature range from -196ºC to 425ºC. For soft seat ball valve, temperature range from -196ºC to 200ºC. Pressure range from PN6 to PN420(150LB~2500LB).
  • 3.What's the materials of valves?
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    Stainless Steel, Forged Stainless Steel, Alloy Steel, Duplex Steel, Titanium Alloy, Nickel-aluminum, Bronze Alloy, etc. Details materials requirements could consult us at any time.
  • 4.How about delivery time?
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    Our factory is near to Ningbo & Shanghai seaport, generally speaking, export to Asia takes about 7-10 days, export to Europe, Middle East, Africa, North America, South America, etc. takes about 30-35 days by sea.
Advantages

Product display

ASTM A105 carbon steel body with RTJ (Ring Type Joint) flange ends, capable of withstanding pressures up to 6,900 PSI (ANSI Class 600) and temperatures ranging from -29°C to 200°C. The double block and bleed (DBB) mechanism employs bidirectional metal-seated seals to isolate upstream/downstream flow while enabling safe cavity pressure release via a central bleed port, achieving API 6D-certified zero leakage. Its enclosed gear operator ensures precise 90° rotation with 20:1 torque amplification, reducing manual effort by 40% compared to standard handwheels. Compliant with ASME B16.34 pressure integrity and API 607 fire-safe standards, the valve’s compact footprint saves 30% space in congested pipelines, with top-entry design allowing in-line maintenance without system shutdown. Ideal for hydrocarbon processing, offshore platforms, and power plant safety systems requiring uncompromised reliability.
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