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Blind Flange Dimensions & Weights (EN 1092-1)

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Dimensions and weights (in kgs.) of EN 1092-1 Type 05 blind flanges for European piping systems

EN 1092-1 BLIND FLANGE DIMENSIONS & WEIGHTS

WHAT IS A “TYPE 05” EN1092-1 BLIND FLANGE?

A “Type 05” flange according to EN 1092-1 refers to a blind flange. The EN 1092-1 standard, which is prevalent in European and international piping systems, specifies the dimensions, tolerances, and material requirements for a wide variety of flanges, including blind flanges. Type 05 categorizes blind flanges within this standard, defining their unique characteristics and applications.

Key Characteristics of Type 05 EN 1092-1 Blind Flange

  • Design: Type 05 blind flanges are solid discs used to terminate the end of a piping system or to close off a pipe. Unlike other flange types, blind flanges do not have a bore, making them ideal for providing a secure seal at the end of a pipeline or for isolation purposes.

  • Applications: Blind flanges are used in various applications where it is necessary to temporarily or permanently seal off a section of a pipeline. This could be for testing, maintenance, or in case a pipeline needs to be expanded or modified in the future. They are essential components in both low and high-pressure systems and can be found in industries ranging from oil and gas to chemical processing and water treatment.

  • Installation: The installation of a Type 05 blind flange is straightforward, involving bolting the flange to a matching flange at the end of a pipe, with a gasket placed between the flanges to ensure a tight seal. This allows for easy access to the pipeline for inspection, cleaning, or modification.

  • Materials: As with other flanges defined by EN 1092-1, Type 05 blind flanges can be made from various materials, including carbon steel, stainless steel, alloy steel, and more. The material selection depends on the specific requirements of the application, such as the type of fluid being transported, operating temperature, and pressure.

  • Pressure and Size Ratings: EN 1092-1 provides specifications for Type 05 blind flanges across a range of pressure designations (PN) and nominal sizes (DN), accommodating a wide array of conditions and system sizes.

Advantages

  • Versatility: Type 05 blind flanges can be used in a variety of settings and applications, offering flexibility for system design and modifications.
  • Sealing Capability: When properly installed, blind flanges provide an effective and reliable seal, preventing leaks and ensuring the safety and integrity of the piping system.
  • Ease of Installation: The simplicity of their design allows for easy installation and removal, facilitating access to the piping system when needed.

In summary, Type 05 according to EN 1092-1 specifies blind flanges, which are essential for sealing the ends of pipelines or isolating sections of a piping system. They offer a practical solution for a variety of applications, ensuring system integrity and providing operational flexibility.

WHAT MEANS “TYPE 05” ACC. TO EN 1092-1?

“Type 05” according to EN 1092-1 refers to blind flanges. EN 1092-1 is a European standard that categorizes flanges into various types based on their design and application. Type 05 specifically denotes blind flanges, which are solid discs used to block off a section of pipeline or to cap the end of a pipe.

Characteristics of Type 05 Blind Flanges:

  • No Bore: Unlike other flange types that facilitate flow, Type 05 flanges are solid, lacking a central bore. This design is intended for sealing or isolating parts of a piping system.
  • Sealing Function: They are primarily used to create a secure seal at the end of a piping system, for pressure testing, or for temporarily or permanently isolating pipeline sections.
  • Bolt Holes: Like other flanges, Type 05 blind flanges have bolt holes around the perimeter for bolting to a mating flange, using a gasket between flanges to ensure a tight seal.

Applications:

  • System Isolation: Type 05 flanges are used when it’s necessary to isolate a section of a pipeline for maintenance, inspection, or system modification.
  • End Caps: They serve as caps at the end of piping systems, allowing for future expansion or modifications.
  • Pressure Testing: Blind flanges are instrumental in performing pressure tests on piping systems, valves, and vessels by providing a sealed end.

Material and Specifications:

  • EN 1092-1 specifies materials for Type 05 flanges, which can include various grades of carbon steel, stainless steel, alloy steel, and other materials suitable for specific operating conditions.
  • The standard provides dimensions, pressure ratings (PN), and other specifications for blind flanges to ensure compatibility and interoperability within piping systems.

Benefits:

  • Versatility: Can be used in a wide range of applications and industries, including oil and gas, chemical processing, water treatment, and more.
  • Safety and Reliability: Offers a reliable method for sealing off piping systems, enhancing safety and operational integrity.
  • Ease of Installation: The straightforward design allows for easy installation and removal when necessary, providing access for system modifications or maintenance.

In essence, “Type 05” according to EN 1092-1 signifies blind flanges, crucial components for sealing, isolating, and testing within industrial piping systems. Their design and functionality make them indispensable in ensuring the safety and integrity of piping infrastructure across various sectors.

DIMENSIONS & WEIGHTS OF EN 1092-1 BLIND FLANGES

BLIND FLANGE PN 6

PN 6 blind flange dimensions (EN 1092-1 type 05) with stud metric bolts and nuts requirements (all sizes are in millimeters unless otherwise specified)

Blind flange dimension EN 1092 type 05

Flange DN
Nominal Diameter
FlangeStud BoltsFlange Weight
kDbd2ThreadBolt holesKG
1555801211M1040,438
2065901411M1040,657
25751001411M1040,821
32901201414M1241,180
401001301414M1241,390
501101401414M1241,620
651301601414M1242,140
801501901618M1643,430
1001702101618M1644,220
1252002401818M1686,100
1502252651818M1687,510
2002803202018M16812,300
2503353752218M161218,500
3003954402222M201225,500
3504454902222M201231,800
4004955402222M201638,500
4505505952422M201651,200
5006006452422M202060,100
6007057553026M2420103,000
7008108604026M2424178,000
8009209754430M2724252,000
900102010754830M2724336,000
1000112011755230M2728435,000
1200134014056033M3032717,000
1400156016306836M33361.094,000
1600176018307636M33401.545,000
1800197020458439M36442.131,000
2000218022659242M39482.862,000

BLIND FLANGE PN 10

PN 10 blind flange dimensions (EN 1092-1 type 05) with stud metric bolts and nuts requirements (all sizes are in millimeters unless otherwise specified)

Blind flange dimension EN 1092 type 05

Flange DN
Nominal Diameter
FlangeStud BoltsFlange Weight
kDbd2ThreadBolt holesKG
2002953402422M20816,500
2503503952622M201224,100
3004004452622M201230,800
3504605052622M201639,600
4005155652626M241649,400
4505656152826M242063,000
5006206702826M242075,200
6007257803430M2720124,000
7008408953830M2724183,000
80095010154833M3024297,000
900105011155033M3028374,000
1000116012305436M3328492,000
1200138014556639M3632842,000

BLIND FLANGE PN 16

PN 16 blind flange dimensions (EN 1092-1 type 05) with stud metric bolts and nuts requirements (all sizes are in millimeters unless otherwise specified)

Blind flange dimension EN 1092 type 05

Flange DN
Nominal Diameter
FlangeStud BoltsFlange Weight
kDbd2ThreadBolt holesKG
1565951614M1240,813
20751051814M1241,140
25851151814M1241,380
321001401818M1642,030
401101501818M1642,350
501251651818M1642,880
651451851818M1643,643
801602002018M1684,610
1001802202018M1685,650
1252102502218M1688,130
1502402852222M20810,500
2002953402422M201216,200
2503554052626M241225,000
3004104602826M241235,100
3504705203026M241648,000
4005255803230M271663,500
4505856404030M272096,600
5006507154433M3020133,000
6007708405436M3320226,000
7008409105836M3324285,000
80095010256239M3624388,000
900105011256439M3628483,000
1000117012556842M3928640,000

TOLERANCE EN1092-1 BLIND FLANGES

The EN 1092-1 standard provides comprehensive details on dimensions and tolerances for various flange types, including Type 05 blind flanges. These tolerances are essential for ensuring that flanges fit properly within a piping system and maintain their integrity under operational conditions. However, due to the breadth of the standard, which covers flanges from DN 10 to DN 4000 across various pressure classes (PN 2.5 to PN 400), it’s challenging to list all specific tolerance values succinctly here.

For detailed and specific tolerance values, you should refer directly to the EN 1092-1 standard. Typically, the standard specifies tolerances for dimensions such as:

  • Outside Diameter (D): Ensures that the flange can properly align and fit within the system. The tolerance varies with flange size and can affect how the flange interfaces with other components.

  • Thickness (E): Critical for ensuring that the flange has the necessary strength to handle the designated pressure. Thickness tolerance can influence the flange’s ability to withstand operational stresses without failing.

  • Bolt Circle Diameter (K): The precision of this measurement is crucial for the alignment of bolt holes on mating flanges, facilitating the assembly process and ensuring the integrity of the bolted connection.

  • Diameter of Bolt Holes (D2): Typically, bolt holes are slightly oversized to allow for ease of alignment and bolting. The exact oversize amount is specified to ensure compatibility while accommodating manufacturing variances.

  • Flange Face Surface Finish: Specifies the roughness of the sealing surface to ensure compatibility with gasket materials and a proper seal. While not a dimensional tolerance, the finish quality is critical for the flange’s sealing function.

Given the variety of sizes and pressure classes covered by EN 1092-1, tolerance values for specific dimensions will vary. These values are meticulously outlined in tables within the standard, providing engineers and manufacturers with the necessary data to design and fabricate flanges that meet the required specifications for fit, function, and safety.

For precise tolerance information, accessing the EN 1092-1 standard through official sources or standards organizations is recommended. This direct reference will ensure that the most accurate and applicable data is used for engineering, design, and quality control purposes in flange manufacturing and application.

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About the Author

Projectmaterials Team

Projectmaterials Team

Blog.projectmaterials.com is an online resource dedicated to providing in-depth information, analysis, and educational content related to the fields of project materials management, engineering, and procurement, particularly within the oil & gas, construction, shipbuilding, energy, and renewable energy sectors. It aims to serve professionals and enthusiasts in these industries by offering valuable insights into materials, equipment, and techniques used in various projects, focusing on the selection, application, and maintenance of these resources.Key features of the blog include:* Educational Articles: Comprehensive posts that cover topics ranging from the technical aspects of piping products (pipes, valves, fittings, flanges, gaskets, bolts, instrumentation) to structural steel and process equipment (including oil extraction systems, drilling rigs, wellheads, pumps, compressors, and separation systems). * Industry Insights: Updates on the latest trends, technologies, and regulatory changes affecting the industries covered. * Guides and How-Tos: Practical advice on selecting the right materials and equipment for specific applications, as well as tips on installation, maintenance, and troubleshooting. * Safety and Standards: Information on safety equipment for production sites, risk mitigation procedures, and an overview of relevant industry standards and regulatory frameworks.The website is designed to support the professional development of engineers, procurement specialists, project managers, and other stakeholders involved in project plant businesses, by disseminating critical know-how and best practices. Whether readers are new to the field or seasoned professionals, blog.projectmaterials.com offers resources to enhance their understanding and performance in managing project materials effectively.

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One Response

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