blind flange types-HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD.|Material Variety&Pressure Ratings
Aug. 03, 2025
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blind flange types-HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD.|Material Variety&Pressure Ratings

Blind flanges are essential components in industrial piping systems, serving as solid barriers to seal pipeline openings. This article provides an in-depth analysis of blind flanges, covering their technical specifications, applications, installation processes, and the company behind the product. Whether you're an engineer, procurement specialist, or industry professional, this guide will help you understand the critical role of blind flanges in modern infrastructure.

Product Overview

Blind flanges are solid disk-shaped components designed to block off a pipeline, valve, or pressure vessel opening. Unlike standard flanges, they lack a central hole, making them ideal for creating a secure, leak-proof seal. These flanges are manufactured in a wide range of materials, including carbon steel (CS), stainless steel (SS), and alloy steel, ensuring compatibility with diverse industrial environments. The product page provides detailed specifications, while the company profile highlights the manufacturer's expertise.

blind flange types-HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD.|Material Variety&Pressure Ratings

Image: Types of blind flanges for industrial applications.

Product Features

Blind flanges are engineered for durability, ease of installation, and compatibility with international standards. Key features include:

  • Material Variety: Available in carbon steel (ASTM A105, P235GH, P245GH, etc.), stainless steel (ASTM A182, 304, 306), and alloy steel, ensuring resistance to corrosion, high pressure, and extreme temperatures.
  • Pressure Ratings: Compatible with PN6–PN40 and Class150–Class2500, meeting ASME, EN, JIS, DIN, BS, and other global standards.
  • Surface Coatings: Options include black paint, galvanization, grease, and epoxy paint for enhanced protection against environmental factors.
  • Size Range: Available in DN10–DN2000 (½In–24In) and S.A 12In–60In, accommodating both small and large-scale industrial systems.
blind flange types-HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD.|Material Variety&Pressure Ratings

Image: Different types of blind flanges for specialized applications.

Technical Specifications

Parameter Details
Pressure Class PN6–PN40, Class150–Class2500
Size Range DN10–DN2000 (½In–24In), S.A 12In–60In
Materials Carbon Steel (ASTM A105, P235GH, P245GH, P250GH, P265GH, ST37-2), Stainless Steel (ASTM A182, 304, 306)
Standards ASME, EN, JIS, DIN, BS, KS, GOST, SABS, ATK
Surface Coating Black paint, Galvanize, Grease, Epoxy paint

Applications in Industrial Systems

Blind flanges are widely used in industries requiring secure sealing and future access. Key applications include:

  • Oil and Gas: Sealing pipelines and valves during maintenance or expansion.
  • Chemical Processing: Preventing leaks in corrosive environments.
  • Power Generation: Ensuring integrity in high-pressure steam systems.
  • Water Treatment: Blocking off sections for inspection or repair.
  • Shipbuilding: Providing modular sealing solutions for marine piping.
blind flange types-HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD.|Material Variety&Pressure Ratings

Image: Blind flanges in a piping system setup.

Installation Process

Proper installation ensures a leak-proof seal and long-term performance. Follow these steps:

  1. Preparation: Clean flange faces and gaskets to remove debris. Use a gasket compatible with the system's fluid and pressure (e.g., gasket types).
  2. Alignment: Match bolt holes of the blind flange and mating flange. Insert bolts and tighten them in a crisscross pattern to ensure even pressure.
  3. Torque Application: Use a torque wrench to apply the manufacturer's specified torque, preventing warping and leaks.
  4. Testing: Conduct pressure tests to verify the seal's integrity before system operation.

For detailed instructions, refer to the installation guide.

Company Background: Hebei Jiuyuan Pipeline Manufacturing Co., Ltd.

Based in China, Hebei Jiuyuan Pipeline Manufacturing Co., Ltd. specializes in high-quality piping components, including blind flanges. The company adheres to international standards such as ASME, EN, and DIN, ensuring reliability and performance. With a focus on innovation and customer satisfaction, Hebei Jiuyuan serves clients across the globe in industries like oil & gas, petrochemicals, and power generation.

Standards and Compliance

Blind flanges from Hebei Jiuyuan comply with rigorous international standards, including:

  • ASME: American Society of Mechanical Engineers standards for pressure equipment.
  • EN: European Norms for industrial components.
  • DIN: German Industrial Norms for flange dimensions and ratings.

For more information on compliance, visit the product page.

Industry Relevance and NIST Insights

According to the National Institute of Standards and Technology (NIST), accurate measurements and standardized components are critical for industrial safety and efficiency. Blind flanges, as part of piping systems, must meet precise specifications to prevent failures. While the NIST website currently experiences technical issues, their guidelines on material testing and pressure ratings remain a benchmark for manufacturers like Hebei Jiuyuan.

Conclusion

Blind flanges are indispensable in modern industrial systems, offering reliable sealing solutions for diverse applications. With their robust design, compliance with international standards, and ease of installation, they ensure operational safety and efficiency. Hebei Jiuyuan Pipeline Manufacturing Co., Ltd. continues to lead in providing high-quality blind flanges, supporting industries worldwide.

References

National Institute of Standards and Technology (NIST) (2025). Retrieved from https://www.nist.gov/. Note: The NIST website may experience technical issues, but their role in establishing industrial standards remains vital.

For further details, visit the product page or contact Hebei Jiuyuan Pipeline Manufacturing Co., Ltd..

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