Meteen naar de inhoud

EN 1092-1-4 loose plate flanges for weld neck collars – free 3D CAD files, info & dimensions

A loose plate flange is a type of slip-on flange that consists of a flat plate with bolt holes. It is used to connect pipes or fittings in low-pressure applications.

The EN 1092-1 is a European standard for flanges that specifies the dimensions, materials, and technical requirements for various types of flanges. A loose plate flange (also called “loose slip-on flange”) is one of the types defined by this standard and is coded as “type 4”. The EN 1092-1 type 4 flanges are only used with a weld neck collar (EN1092-1 Type 34).

Main advantages: Strong and rotatable

The advantage of this combination compared to the type 11 welding neck flanges is that this flange type can be rotated 360 degrees, even after being welded to a pipe. The connection is almost as strong as a welding neck flange (type 11).

In this article:

EN 1092-1-4 DN200 PN16 Flange 3D 360° View

Advantages of loose plate flanges + weld neck collars

  1. Increased flexibility: The type 34 collar provides additional flexibility in the connection between the flanges. It acts as a loose ring between the flanges, allowing for slight misalignment or movement without compromising the integrity of the joint. This flexibility can be particularly useful in applications where thermal expansion, vibrations, or other dynamic forces are present.
  2. Enhanced sealing: The type 34 collar features a sealing element, such as a gasket, which helps to improve the sealing performance of the joint. This can be advantageous in applications that require a higher level of sealing integrity, such as those involving hazardous fluids or high-pressure systems.
  3. Ease of installation: The type 34 collar simplifies the installation process by providing a separate component that can be easily positioned and aligned between the flanges. This can save time and effort during assembly and disassembly, especially in situations where frequent maintenance or repair is required.
  4. Reduced risk of corrosion: By using a collar between the flanges, the direct contact between the flange faces is minimized. This helps to reduce the risk of galvanic corrosion, especially when dissimilar materials are used in the flange assembly.
  5. Versatility: The combination of type 4 flanges and type 34 collars offers versatility in terms of compatibility with different piping systems and applications. The standardized dimensions and design ensure interchangeability and ease of integration with other EN 1092-1 components.

Disadvantages of loose plate flanges + weld neck collars

  1. Increased complexity: The addition of a collar introduces an extra component and sealing element, which can increase the overall complexity of the flange assembly. This complexity may require additional attention during installation and maintenance procedures.
  2. Higher cost: The inclusion of a separate collar can add to the overall cost of the flange assembly compared to simpler flange types that do not require collars. The cost of the collar itself, as well as the associated gaskets, bolts, and other necessary components, should be taken into account.
  3. Limited availability: Depending on the specific application and region, the availability of EN 1092-1 type 4 flanges and type 34 collars may vary. It’s essential to ensure that these components are readily accessible from suppliers or manufacturers to avoid potential delays or sourcing issues.
  4. Reduced rigidity: The flexibility provided by the type 34 collar, while advantageous in certain situations, can also result in reduced rigidity compared to rigid flange connections. In applications where rigid alignment is critical, such as high-pressure systems or those subject to significant mechanical stresses, alternative flange types might be more suitable.
  5. Compatibility constraints: The combination of a type 4 flange with a type 34 collar may have limitations regarding compatibility with other flange types or components. It’s important to verify the compatibility requirements of the specific application and ensure that all components are designed to work together seamlessly.

Industries & applications where loose flanges + weld neck collars are used

  1. Chemical Industry: EN 1092-1 Type 4 flanges are utilized in chemical processing plants for connecting pipelines that transport various chemicals, acids, and corrosive substances. These flanges are often suitable for moderate-pressure and temperature applications.
  2. Water and Wastewater Treatment: EN 1092-1 Type 4 flanges are found in water treatment facilities, wastewater treatment plants, and desalination plants. They are used for connecting pipelines that carry water, sludge, or treated wastewater.
  3. Petrochemical Industry: EN 1092-1 Type 4 flanges are employed in the petrochemical sector for connecting pipelines that transport petroleum products, gases, and other hydrocarbons. They can handle a range of pressures and temperatures typically encountered in petrochemical processes.
  4. Power Generation: EN 1092-1 Type 4 flanges are used in power plants, both thermal and nuclear, for connecting pipelines carrying steam, condensate, and other fluids. These flanges are suitable for moderate-pressure and temperature applications in power generation systems.
  5. Food and Beverage Industry: EN 1092-1 Type 4 flanges are utilized in food processing plants, breweries, and beverage manufacturing facilities. They connect pipelines carrying food products, liquids, and gases.
  6. Pharmaceutical Industry: EN 1092-1 Type 4 flanges are employed in pharmaceutical manufacturing plants for connecting pipelines carrying pharmaceutical liquids, gases, and chemicals. They are designed to meet hygiene and sanitary requirements.
  7. HVAC Systems: EN 1092-1 Type 4 flanges find application in heating, ventilation, and air conditioning (HVAC) systems for connecting ducts and pipes carrying air, water, and refrigerants.
  8. Oil and Gas Industry: EN 1092-1 Type 4 flanges can be used in certain applications within the oil and gas industry, such as midstream and downstream operations, where they are suitable for specific pressure and temperature requirements.

The three most commonly used materials for EN1092-1 Type 4 flanges

  1. Carbon Steel: Carbon steel is a widely used material for flanges due to its affordability, good mechanical properties, and versatility. Flanges made of carbon steel are suitable for a wide range of applications and pressure ratings.
  2. Stainless Steel: Stainless steel is another popular material for EN1092-1 flanges. It offers excellent corrosion resistance, making it suitable for applications where the flange will come into contact with corrosive substances or environments. Stainless steel flanges are commonly used in industries such as chemical processing, food processing, and offshore oil and gas.
  3. Alloy Steel: Alloy steel flanges are chosen when additional strength, higher temperature resistance, or specific mechanical properties are required. These flanges are often used in high-pressure and high-temperature applications, such as power generation plants, petrochemical refineries, and oil and gas pipelines.

Tip: Using different materials for the flange and collar

In some cases, it is a good idea to use different materials for the flange and collar (the connecting piece that joins the flange to the pipe). This can provide benefits depending on the specific requirements and conditions of the piping system. Here are some aspects to consider:

  1. Corrosion Resistance: Choosing different materials for the flange and collar can be useful if the pipe and flange are exposed to different corrosive environments. By selecting a corrosion-resistant material for the collar, the lifespan of the piping system can be extended, while the flange can be made from a different material that is more cost-effective but less corrosion-resistant.
  2. Cost Optimization: Sometimes, using different materials for the flange and collar can be cost-effective. If the flange needs to meet stringent specifications due to the application or environment, using a less expensive material choice for the collar can help lower overall costs without compromising performance or safety.
  3. Material Compatibility: When selecting different materials for the flange and collar, it is important to ensure compatibility between the materials. The materials should be compatible in terms of thermal expansion, chemical compatibility, and mechanical strength to ensure a safe and durable connection.
  4. Technical Requirements: It is essential to consider the technical specifications and standards applicable to the piping system. In some cases, specific standards may impose limitations on the use of different materials for the flange and collar. It is important to consult the relevant standards and regulations to ensure that the materials used meet the required specifications.

Are EN 1092-1 Type 4 flanges readily available?

EN 1092-1 type 4 flanges are generally readily available in the market. As type 4 flanges are standardized according to the EN 1092-1 norm, many manufacturers and suppliers produce and offer them as part of their flange product range. These flanges can be sourced from various distributors, specialized flange suppliers, industrial suppliers, and manufacturers.

However, the availability of EN 1092-1 type 4 flanges may vary depending on factors such as geographical location, local market demand, and specific dimensions or materials required. In regions where the EN 1092-1 standard is widely adopted, type 4 flanges are more likely to be readily available. It’s recommended to check with local suppliers or conduct an online search to determine the availability of type 4 flanges from reputable sources in your specific location.

The other EN1092-1 flange types

Welding fittings for EN1092-1 flanges

EN 1092-1 Type 4 with type 34 collar – Dimensions & free CAD files

Loose slip-on flanges with collar type 34 – PN10 dimensions & free CAD files

DNDownload 3D CAD fileASDB3C1D1FH2KL x NoN1
10https://a360.co/3BKCldtThe same dimensions as PN40
15https://a360.co/3DKgow2The same dimensions as PN40
20https://a360.co/2YWWoHFThe same dimensions as PN40
25https://a360.co/3vfc6tbThe same dimensions as PN40
32https://a360.co/3iYrGogThe same dimensions as PN40
40https://a360.co/3p25eyoThe same dimensions as PN40
50https://a360.co/3AHjmznThe same dimensions as PN16
65https://a360.co/3BJyxJGThe same dimensions as PN16
80https://a360.co/3phQk7xThe same dimensions as PN16
100https://a360.co/3p1xJMyThe same dimensions as PN16
125https://a360.co/3p3QoriThe same dimensions as PN16
150https://a360.co/3paVaD8The same dimensions as PN16
200https://a360.co/3vbfdlY219,15,934024024268206229522 x 8234
250https://a360.co/2XgjyrG273,06,339529426320226835022 x 12292
300https://a360.co/3j4ssQB323,87,144534826370226840022 x 12342
350https://a360.co/3AO32Nq355,67,150540028430227246022 x 16385
400https://a360.co/3lGpa7M406,47,156545032482247251526 x 16440
450https://a360.co/3FMHSCJ4577,161549836532247556526 x 20488
500https://a360.co/3FMHSCJ5087,167055038585268062026 x 20542
600https://a360.co/3AJGuwW6107,178065042685268072530 x 20642

Loose slip-on flanges with collar type 34 – PN16 dimensions & free CAD files

DNDownload 3D CAD fileASDB3C1D1FH2KL x NoN1
10https://a360.co/3BKCldtThe same dimensions as PN40
15https://a360.co/3DKgow2The same dimensions as PN40
20https://a360.co/2YWWoHFThe same dimensions as PN40
25https://a360.co/3vfc6tbThe same dimensions as PN40
32https://a360.co/3iYrGogThe same dimensions as PN40
40https://a360.co/3p25eyoThe same dimensions as PN40
50https://a360.co/3AHjmzn60,32,91657719102164512518 x 474
65https://a360.co/3BJyxJG76,12,91859620122164514518 x 892
80https://a360.co/3phQk7x88,93,220010820138165016018 x 8105
100https://a360.co/3p1xJMy114,33,622013422158185218018 x 8131
125https://a360.co/3p3Qori139,7425016222188185521018 x 8156
150https://a360.co/3paVaD8168,34,528518824212205524022 x 8184
200https://a360.co/3FKPgP3219,15,934024026268206229522 x 12235
250https://a360.co/2YVtfwj273,06,340529429320227035526 x 12292
300https://a360.co/3oZJpQ4323,87,146034832378247841026 x 12344
350https://a360.co/3FKTne7355,6852040035438268247026 x 16390
400https://a360.co/3nbrW4P406,4858045438490288552530 x 16445
450https://a360.co/3p3zmcE457864050042550308758530 x 20490
500https://a360.co/3mRmqEg508871555646610329065033 x 20548
600https://a360.co/3DHTR2U6108,884066052725329577036 x 20652

Loose slip-on flanges with collar type 34 – PN25 dimensions & free CAD files

DNDownload 3D CAD fileASDB3C1D1FH2KL x NoN1
10https://a360.co/3BKCldtThe same dimensions as PN40
15https://a360.co/3DKgow2The same dimensions as PN40
20https://a360.co/2YWWoHFThe same dimensions as PN40
25https://a360.co/3vfc6tbThe same dimensions as PN40
32https://a360.co/3iYrGogThe same dimensions as PN40
40https://a360.co/3p25eyoThe same dimensions as PN40
50https://a360.co/2YTG3U4The same dimensions as PN40
65https://a360.co/3p25OfyThe same dimensions as PN40
80https://a360.co/3DKqOeKThe same dimensions as PN40
100https://a360.co/3ABX0PKThe same dimensions as PN40
125https://a360.co/3lGLazFThe same dimensions as PN40
150https://a360.co/3DDDSCTThe same dimensions as PN40
200https://a360.co/3BIx2LV219,16,336025032278268031026 x 12244
250https://a360.co/3aIp5Ks273,07,142530235335268837030 x 12298
300https://a360.co/3lGLzlt323,8848535638395289243030 x 16352
350https://a360.co/2YWV3R9355,68555408424503210049033 x 16398
400https://a360.co/3lGHWw3406,48,8620462465053411055036 x 16452
450https://a360.co/3oZL3RK4578,8670510505553611060036 x 20500
500https://a360.co/3lITUW450810730568566153812566036 x 20558
600https://a360.co/3FJfrpz61011845670687204012577039 x 20660

Loose slip-on flanges with collar type 34 – PN40 dimensions & free CAD files

DNDownload 3D CAD fileASDB3C1D1FH2KL x NoN1
10https://a360.co/3BKCldt17,21,89031144012356014 x 428
15https://a360.co/3DKgow221,329535144512386514 x 432
20https://a360.co/2YWWoHF26,72,310542165814407514 x 440
25https://a360.co/3vfc6tb33,42,611549166814408514 x 446
32https://a360.co/3iYrGog42,42,6140591878144210018 x 456
40https://a360.co/3p25eyo48,32,6150671888144511018 x 464
50https://a360.co/2YTG3U460,32,91657720102164812518 x 475
65https://a360.co/3p25Ofy76,12,91859622122165214518 x 890
80https://a360.co/3DKqOeK88,93,220011424138185816018 x 8105
100https://a360.co/3ABX0PK114,33,623513826162206519022 x 8134
125https://a360.co/3lGLazF139,7427016628188226822026 x 8162
150https://a360.co/3DDDSCT168,34,530019430218247525026 x 8192
200https://a360.co/30tzcRN219,16,337525036285288832030 x 12244
250https://a360.co/3j56LQt273,07,1450312423453010538533 x 12306
300https://a360.co/3lGLnmr323,88515368484103411545033 x 16362
350https://a360.co/3DH4aUN355,68,8580418544653612551036 x 16408
400https://a360.co/2XcBS4S406,411660472605354213558539 x 16462
450https://a360.co/3FQ4mCT45712,5685510665604613561039 x 20500
500https://a360.co/3FMnkdA50814,2755572726155014067042 x 20562
600https://a360.co/3lGyN6z61016890676847355415079548 x 20666