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EN 1092-1-2 Loose plate flanges – free 3D CAD files, info & dimensions

Loose plate flange with type 32 collar

Loose plate flange with type 33 collar

A loose flange is a flange without a collar, which means it does not have a raised ring or lip around the borehole. Instead, it has a flat face with bolt holes drilled through it to connect to another flange or equipment. These flanges are designed to be used with an EN 1092-1 standard collar.

Loose flanges are commonly used in low-pressure applications, such as water supply systems, ventilation systems, and pipelines for non-corrosive fluids. They are also used in industries such as chemical, petrochemical, and food processing, where they are required to connect equipment or pipelines together securely.

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 ” slip-on flange) is one of the types defined by this standard and is coded as “type 2”.

Main advantage: Easy to install

Loose flanges are easy to install and remove because they can be rotated. This means that the flange can be easily aligned and bolted to another flange or equipment without the need for special tools or equipment.

Loose plate flange with type 32 collar

Loose plate flange with type 33 collar

In this article:

EN 1092-1-2/32 DN200 PN16 Flange 3D 360° View

EN 1092-1-2/33 DN200 PN16 Flange 3D 360° View

Advantages of loose plate flanges

  • Cost-effective: Loose flanges are less expensive than other types of flanges, such as weld neck flanges. This makes them an attractive option for low-pressure applications or where cost is a significant factor.
  • Versatility: Loose flanges are versatile and can be used in a variety of applications, including water supply systems, ventilation systems, and pipelines for non-corrosive fluids.
  • Easy to replace: In the event of damage or wear, a loose flange can be easily replaced without having to replace the entire piping system.
  • Reduced stress: Loose flanges distribute stress evenly across the flange face, which reduces the risk of damage to the piping system.
  • Flexibility: Loose flanges provide flexibility in piping systems, allowing for minor misalignments or movements between the piping and the equipment.

Disadvantages of loose plate flanges

  • Limited pressure rating: Loose flanges are generally limited to low-pressure applications. They are not suitable for high-pressure systems, as the lack of a collar means that the flange may not be able to withstand the forces exerted by the fluid.
  • Limited compatibility: Loose flanges may not be compatible with certain types of piping or equipment, as they require a separate collar to be installed.
  • Higher risk of leakage: Because loose flanges do not have a collar, there is a higher risk of fluid leakage at the joint. This can be mitigated by using an appropriate gasket and tightening the bolts properly.
  • Limited corrosion resistance: Loose flanges may not be suitable for use in corrosive environments, as the lack of a collar can make it more difficult to protect the flange from corrosion.
  • Limited sealing capability: Loose flanges are generally not suitable for applications that require a high degree of sealing, as the flange face is flat and does not provide the same level of sealing as other types of flanges.

Industries & applications where loose plate flanges are used

Loose flanges are commonly used in low-pressure applications where cost and ease of installation are important factors. They are generally not suitable for high-pressure or corrosive environments, where other types of flanges may be a better choice.

  • Water supply and treatment: Loose flanges are commonly used in water supply and treatment systems, where low-pressure applications are typical.
  • Chemical and petrochemical: Loose flanges are used in chemical and petrochemical industries, where they are used to connect equipment or pipelines that carry non-corrosive fluids.
  • Food processing: Loose flanges are used in food processing industries to connect pipelines that carry non-corrosive fluids, such as water or food products.
  • HVAC: Loose flanges are used in heating, ventilation, and air conditioning (HVAC) systems to connect ductwork and equipment.
  • Pharmaceutical: Loose flanges are used in pharmaceutical industries to connect pipelines that carry non-corrosive fluids, such as water or pharmaceutical products.
  • Pulp and paper: Loose flanges are used in pulp and paper industries to connect pipelines that carry non-corrosive fluids, such as water or pulp.
  • Mining: Loose flanges are used in mining industries to connect pipelines that carry non-corrosive fluids, such as water or minerals.

The three most commonly used materials for loose plate 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.

Are loose plate flanges readily available?

The availability of EN1092-1 type 2 flanges can vary depending on various factors, such as the specific size, pressure class, material type, and the region you’re looking in.

Generally, suppliers of flanges often have a stock of standard sizes and pressure classes because these are more frequently requested. Popular sizes and standard pressure classes are therefore more likely to be readily available.

However, if you’re looking for less common sizes, higher pressure classes, or specific material types, it’s possible that the flanges may not always be available in stock. In such cases, suppliers can often order the required flanges from manufacturers or other sources.

The other EN1092-1 flange types

Welding fittings for EN1092-1 flanges

EN 1092-1 Type 2 with type 32 collar – Dimensions & free CAD files

There is now also an option to download all 3D CAD models at once!

DOWNLOAD ALL 3D MODELS IN 1 ZIP FILE (€10)

Loose flanges with collar type 32 – PN6 dimensions & free CAD files

DNDownload 3D CAD fileDB1B2C1D1EFKL x No
10https://a360.co/3BJh83E75182112353105011 x 4
15https://a360.co/3oWFVxM80222512403105511 x 4
20https://a360.co/3FOY1rg9027,53114504106511 x 4
25https://a360.co/3FLs9UM10034,53814604107511 x 4
32https://a360.co/30sKYvF12043,54616705109014 x 4
40https://a360.co/2YKQgBO13049,553168051010014 x 4
50https://a360.co/3aHkdVW14061,565169051211014 x 4
65https://a360.co/3AHG4Ya16077,5811611061213014 x 4
80https://a360.co/2X9U2Ei19090,5941812861215018 x 4
100https://a360.co/3iWEvj12101161201814861417018 x 4
125https://a360.co/3vj8CWL240141,51452017861420018 x 8
150https://a360.co/3vcpVJ4265170,51742020261422518 x 8
200https://a360.co/3DAzC70320221,52262225861628018 x 8
250https://a360.co/3mTbANR375276,52812431281833518 x 12
300https://a360.co/3aCD2de440327,53332436581839522 x 12
350https://a360.co/3ALyDip490359,53652641581844522 x 12
400https://a360.co/3DAzIvo540411,04162646582049522 x 16
450https://a360.co/3BGm9Kw595462,04673052082055022 x 16
500https://a360.co/3mQ95Mp645513,55193057082260022 x 20
600https://a360.co/3p3s6Oa755616,56223267082270526 x 20

Loose flanges with collar type 32 – PN10 dimensions & free CAD files

DNDownload 3D CAD fileDB1B2C1D1EFKL x No
10https://a360.co/3mVTdrwThe same dimensions as PN40
15https://a360.co/3AGjNtJThe same dimensions as PN40
20https://a360.co/3aDPXLWThe same dimensions as PN40
25https://a360.co/3mVTrySThe same dimensions as PN40
32https://a360.co/3azfdD3The same dimensions as PN40
40https://a360.co/3j1s1GUThe same dimensions as PN40
50https://a360.co/3FMKGQnThe same dimensions as PN16
65https://a360.co/2YR6usYThe same dimensions as PN16
80https://a360.co/3DHf1xSThe same dimensions as PN16
100https://a360.co/3BJ7LB1The same dimensions as PN16
125https://a360.co/3AGBVnaThe same dimensions as PN16
150https://a360.co/3mQp5OwThe same dimensions as PN16
200https://a360.co/3mQwhtT340221,52262426862029522 x 8
250https://a360.co/30qKC8S395276,52182632082235022 x 12
300https://a360.co/3DHefRG445327,53332637082240022 x 12
350https://a360.co/3aDrdDm505359,53652843082246022 x 16
400https://a360.co/3v9AQDg565411,04163248282451526 x 16
450https://a360.co/2YPvEYZ615462,04673653282456526 x 20
500https://a360.co/3oZAzSf670513,55193858582662026 x 20
600https://a360.co/3DCAKXV780616,56224268582672530 x 20

Loose flanges with collar type 32 – PN16 dimensions & free CAD files

DNDownload 3D CAD fileDB1B2C1D1EFKL x No
10https://a360.co/3mVTdrwThe same dimensions as PN40
15https://a360.co/3AGjNtJThe same dimensions as PN40
20https://a360.co/3aDPXLWThe same dimensions as PN40
25https://a360.co/3mVTrySThe same dimensions as PN40
32https://a360.co/3azfdD3The same dimensions as PN40
40https://a360.co/3j1s1GUThe same dimensions as PN40
50https://a360.co/3FMKGQn16561,5651910251612518 x 4
65https://a360.co/2YR6usY18577,5812012261614518 x 8
80https://a360.co/3DHf1xS20090,5942013861616018 x 8
100https://a360.co/3BJ7LB1220116,01202215861818018 x 8
125https://a360.co/3AGBVna250141,51452218861821018 x 8
150https://a360.co/3mQp5Ow285170,51742421262024022 x 8
200https://a360.co/2YUwfJl340221,52262626862029522 x 12
250https://a360.co/3DG2rPz405276,52812932082235526 x 12
300https://a360.co/3ASjxbj460327,53333237882441026 x 12
350https://a360.co/3DGWXnO520359,53653543882647026 x 16
400https://a360.co/3aDsf2c580411,04163849082852530 x 16
450https://a360.co/2YRlWWs640462,04674255083058530 x 20
500https://a360.co/3BJjKP0715513,55104661083265033 x 20
600https://a360.co/3FMLsNh840616,56225272583277036 x 20

Loose flanges with collar type 32 – PN25 dimensions & free CAD files

DNDownload 3D CAD fileDB1B2C1D1EFKL x No
10https://a360.co/3mVTdrwThe same dimensions as PN40
15https://a360.co/3AGjNtJThe same dimensions as PN40
20https://a360.co/3aDPXLWThe same dimensions as PN40
25https://a360.co/3mVTrySThe same dimensions as PN40
32https://a360.co/3azfdD3The same dimensions as PN40
40https://a360.co/3j1s1GUThe same dimensions as PN40
50https://a360.co/3DKuBJlThe same dimensions as PN40
65https://a360.co/3AGzJfwThe same dimensions as PN40
80https://a360.co/3mNC0R8The same dimensions as PN40
100https://a360.co/3iZzVjOThe same dimensions as PN40
125https://a360.co/3mRRuUcThe same dimensions as PN40
150https://a360.co/30syiF9The same dimensions as PN40
200https://a360.co/3lBqGYV360221,52263227862631026 x 12
250https://a360.co/3DFC7F5425276,52813533582637030 x 12
300https://a360.co/3j2792a485327,53333839582843030 x 16
350https://a360.co/3ABRnkp555359,53654245083249033 x 16
400https://a360.co/3DFCjnN620411,04164650583455036 x 16
450https://a360.co/3AHIQg2670462,04675055583660036 x 20
500https://a360.co/3iZQFrg730513,55105661583866036 x 20
600https://a360.co/3FJR3nv845616,56226872084077039 x 20

Loose flanges with collar type 32 – PN40 dimensions & free CAD files

DNDownload 3D CAD fileDB1B2C1D1EFKL x No
10https://a360.co/3mVTdrw90182114403126014 x 4
15https://a360.co/3AGjNtJ95222514453126514 x 4
20https://a360.co/3aDPXLW10527,53116584147514 x 4
25https://a360.co/3mVTryS11534,53816684148514 x 4
32https://a360.co/3azfdD314043,547187851410018 x 4
40https://a360.co/3j1s1GU15049,553188851411018 x 4
50https://a360.co/3DKuBJl16561,5652010251612518 x 4
65https://a360.co/3AGzJfw18577,5812212261614518 x 8
80https://a360.co/3mNC0R820090,5942413861816018 x 8
100https://a360.co/3iZzVjO235116,01202616262019022 x 8
125https://a360.co/3mRRuUc270141,51452818862222026 x 8
150https://a360.co/30syiF9300170,51743021862425026 x 8
200https://a360.co/3aEIaxs375221,52263628562832030 x 12
250https://a360.co/3mWuJyi450276,52814234583038533 x 12
300https://a360.co/3aEvjLr515327,53334841083445033 x 16
350https://a360.co/3p207OF580359,53655446583651036 x 16
400https://a360.co/3AHu5tJ660411,04166053584258539 x 16
450https://a360.co/3BTD6Ru685462,04676656084661039 x 20
500https://a360.co/3iY4FSf755513,55197261585067042 x 20
600https://a360.co/3BIvRvU890616,56228473585479548 x 20

EN 1092-1 Type 2 with type 33 collar – Dimensions & free CAD files

Loose flanges with collar type 33 – PN6 dimensions & free CAD files

DNDownload 3D CAD fileDB2C1D1EKL x No
10https://a360.co/3aA10FM7521123535011 x 4
15https://a360.co/3vbqliQ8025124035511 x 4Thers
20https://a360.co/3FJkrdD9031145046511 x 4
25https://a360.co/3BGXKEl10038146047511 x 4
32https://a360.co/2YQf37p12046167059014 x 4
40https://a360.co/3aDrqqg130531680510014 x 4
50https://a360.co/2XhyjdS140651690511014 x 4
65https://a360.co/3BHwV3d1608116110613014 x 4
80https://a360.co/3j43IrE1909418128615018 x 4
100https://a360.co/3va4wQR21012018148617018 x 4
125https://a360.co/3j3WYdA24014520178620018 x 8
150https://a360.co/3aBYxKX26517420202622518 x 8
200https://a360.co/3p2EWvO32022622258628018 x 8
250https://a360.co/3lCqnx437528124312833518 x 12
300https://a360.co/3p0EpdQ44033324365839522 x 12
350https://a360.co/3mXmTot49036526415844522 x 12
400https://a360.co/3vaHfhF54041626465849522 x 16
450https://a360.co/2YHLzbX59546730520855022 x 16
500https://a360.co/3j0Wjts64551930570860022 x 20
600https://a360.co/2YPzHo975562232670870526 x 20

Loose flanges with collar type 33 – PN10 dimensions & free CAD files

DNDownload 3D CAD fileDB2C1D1EKL x No
10https://a360.co/2Xcqu9fThe same dimensions as PN16
15https://a360.co/2YMnl0nThe same dimensions as PN16
20https://a360.co/3mQststThe same dimensions as PN16
25https://a360.co/3BGB47iThe same dimensions as PN16
32https://a360.co/3FKKFwqThe same dimensions as PN16
40https://a360.co/3lGoIGFThe same dimensions as PN16
50https://a360.co/3aAK7LhThe same dimensions as PN16
65https://a360.co/3j3AFVnThe same dimensions as PN16
80https://a360.co/3DKITcVThe same dimensions as PN16
100https://a360.co/3lEgFKrThe same dimensions as PN16
125https://a360.co/3DF87JxThe same dimensions as PN16
150https://a360.co/3iWLyrZThe same dimensions as PN16
200https://a360.co/3v9ENI634022624268629522 x 8
250https://a360.co/3aS7Tmd39521826320835022 x 12
300https://a360.co/3DH0u5n44533326370840022 x 12
350https://a360.co/3pa1H0S50536528430846022 x 16
400https://a360.co/3DE4a7Z56541632482851526 x 16
450https://a360.co/3aA2mjQ61546736532856526 x 20
500https://a360.co/3lNdCjv67051938585862026 x 20
600https://a360.co/2YXCLPz78062242685872530 x 20

Loose flanges with collar type 33 – PN16 dimensions & free CAD files

DNDownload 3D CAD fileDB2C1D1EKL x No
10https://a360.co/2Xcqu9f9021144036014 x 4
15https://a360.co/2YMnl0n9525144536514 x 4
20https://a360.co/3mQstst10531165847514 x 4
25https://a360.co/3BGB47i11538166848514 x 4
32https://a360.co/3FKKFwq140471878510018 x 4
40https://a360.co/3lGoIGF150531888511018 x 4
50https://a360.co/3aAK7Lh1656519102512518 x 4
65https://a360.co/3j3AFVn1858120122614518 x 8
80https://a360.co/3DKITcV2009420138616018 x 8
100https://a360.co/3lEgFKr22012022158618018 x 8
125https://a360.co/3DF87Jx25014522188621018 x 8
150https://a360.co/3iWLyrZ28517424212624022 x 8
200https://a360.co/30kXq0h34022626268629522 x 12
250https://a360.co/3aJ0WDz40528129320835526 x 12
300https://a360.co/3DHZ8XY46033332378841026 x 12
350https://a360.co/3FJVheR52036535438847026 x 16
400https://a360.co/3iYIhsg58041638490852530 x 16
450https://a360.co/3FJmFcZ64046742550858530 x 20
500https://a360.co/3j2wCsm71551046610865033 x 20
600https://a360.co/3BJEjL984062252725877036 x 20