Dimension table · Flanges · Type 02/04 + collar 32/34
Loose flange type 02 and 04: dimensions and dimensional drawing to EN 1092-1
EN 1092-1 (formerly DIN 2641/2642, 2655/2656, 2673)PN 6–40DN 10–800Dimensions in mmfrom stock or to order
Dimensional drawing for your size
EN 1092-1 covers the greyed-out sizes. Our dimension overview does not show them at present.
Loose flange with weld-on plate collar · Type 02+32 · DN 100 · PN 16
Loose flanges type 02 and 04 in 3D – rotatable, all sizes DN 50 to DN 800
Technical basis: DIN EN 1092-1:2018-12. Zickwolff has prepared this presentation for practical use, with our own structure, our own designations and a statement of what kind of value each figure is. The original standard governs normative requirements.
How to use the dimensional drawing – with example and direct link
Choose the version, pressure rating and nominal size – the drawing and dimension table then show exactly this version, with the values written directly in the drawing instead of just the dimension letters. The tables for the nominal sizes covered here are further down the page. Loose flange with weld-on plate collar and Loose flange with welding neck collar – the differences are explained further down.
How it works: Choose PN 16 in the field “Pressure rating” and DN 100 in the field “Nominal size”. The dimensional drawing immediately shows every dimension of the loose flange type 02 and 04 with tolerances, the table below all sizes. “Print this size as PDF” takes the drawing with you.
Example DN 100 PN 16: outside diameter D 220 mm, bolt circle diameter K 180 mm, bolt holes n × L 8 × ⌀18 mm, bolt size M16, flange thickness C1 22 mm, bore of the loose flange B 120 mm, weight of loose flange (guide value, steel) 4.2 kg.
Direct link to this size: https://www.zickwolff.de/wissen/en/flanges/loose-flanges-type-02-04/?pn=16&dn=100
| Property | Value | Type of information |
|---|---|---|
| basic data | ||
| nominal size | DN 100 | standard dimension |
| pressure rating | PN 16 | standard dimension |
| weight of loose flange (guide value, steel) | 4.2 kg | guide value |
| weight of collar (guide value, steel) | 1.3 kg | guide value |
| availability | from stock or to order | trade information |
| connecting dimensions The dimensions that decide the fit with the mating flange. | ||
| outside diameter D | 220 mm | standard dimension |
| bolt circle diameter K | 180 mm | standard dimension |
| bolt holes n × L | 8 × ⌀18 mm | standard dimension |
| bolt size | M16 | standard dimension |
| flange thickness C1 | 22 mm | standard dimension |
| bore of the loose flange B | 120 mm – inside diameter of the ring; it sits with clearance over the collar and can be turned for alignment | standard dimension |
| chamfer at the bore E | 6 mm – axial length at the collar-side edge of bore B; the standard does not specify the angle | standard dimension |
| collar The collar carries the sealing face – the loose flange only transmits the bolt load. | ||
| collar outside diameter d1 | 158 mm – outside diameter of the collar; the seal is made on it | standard dimension |
| collar thickness F | 18 mm | standard dimension |
Without an entry in the “Type of information” column: standard dimension. A dimension that EN 1092-1 specifies for this size.
Where exactly it is measured
- outside diameter D
- largest diameter of the flange plate, measured across the edge
- bolt circle diameter K
- diameter of the circle through the centres of the bolt holes – with an even number of holes, from hole centre to opposite hole centre
- bolt holes n × L
- count the holes, then measure the diameter of one hole – the hole is always larger than the bolt (example: hole 18 mm, bolt M16)
- flange thickness C1
- measure the thickness of the loose ring, not of the collar
- bore of the loose flange B
- inside diameter of the ring – it sits with clearance over the collar and can be turned
- collar outside diameter d1
- outside diameter of the collar – the seal is made on it, not on the loose flange
- collar thickness F
- thickness of the collar disc
- chamfer at the bore E
- axial length of the chamfer at the collar-side edge of bore B – it faces the collar
Tolerances (limit deviations): what range the standard permits
For each dimension the range that EN 1092-1 permits is given – minimum and maximum instead of the deviation that would first have to be worked out. In the drawing this is shortened to tolerance – the word everyone uses in practice. In technical terms the two values given are the limit dimensions of the dimension, their distance is the tolerance and the deviations from the nominal size are the limit deviations. The basis is Table 22 and Table 23 – where the standard specifies nothing, that is stated.
These dimensions have two limit deviations – which one applies depends on the specific part
For the following dimensions the standard specifies two limit deviations. Which one applies does not depend on the nominal size but on the specific part. Both cases are therefore written out.
This answer determines: flange thickness C1.
flange thickness C1 – measure the thickness of the loose ring, not of the collar
Is the flange machined on both faces? (this refers to the two annular faces of the flange plate: the sealing face at the front and the nut bearing face at the back, on which the nuts sit. Machined on both faces means both are faced flat – with fine turning marks and an even sheen. A look at the back is enough: turned bright, or left as-forged with forging or rolling skin)
- machined on both faces flange thickness limit dimensions 20.5 to 23.5 mm (±1.5 mm)
- machined on the front face only, or not machined flange thickness limit dimensions 20.5 to 26 mm (+4 / −1.5 mm)
- I don't know both cases remain
Further properties with limit deviations
These properties have no nominal dimension in the dimension table, but the standard limits them. For incoming inspection they are often the decisive ones – they are what makes a bolted joint fail on site.
| distance between adjacent bolt holes | limit deviation ±1 mm |
|---|---|
| eccentricity of bolt circle to bore B | at most 2 mm |
| parallelism of nut bearing surface and bearing face on the collar | machined: at most 1° · not machined: at most 2° |
Measuring on the part: the dimensions in the picture
Every dimension has its reason – whoever knows why they measure, measures better.
Sources of the limit deviations (10 entries)
- flange thickness (machined on both faces) – Table 22, flange thickness C1, C2, C3, C4, all types (machined on both faces), over 18 to 50 mm thickness
- flange thickness (machined on the front face only, or not machined) – Table 22, flange thickness C1, C2, C3, C4, all types (machined on the front face only), type 02 and 04 (unmachined), over 18 to 50 mm thickness
- distance between adjacent bolt holes – Table 22, centre to centre of adjacent bolt holes, all types, bolt size M10 to M24
- eccentricity of bolt circle to bore B – Table 22, eccentricity of machined sealing face diameter, all types, over DN 65 (footnote d)
- parallelism of nut bearing surface and bearing face on the collar (machined) – Table 22, parallelism between nut bearing face and flange sealing face, all types (machined bearing face), all DN
- parallelism of nut bearing surface and bearing face on the collar (not machined) – Table 22, parallelism between nut bearing face and flange sealing face, all types (unmachined bearing face), all DN
- outside diameter – Table 22, outside diameter D, all other types, up to DN 150
- bolt circle diameter – Table 22, bolt circle diameter K, all types, bolt size M10 to M24
- bolt holes – Table 22, hole diameter L, all types, bolt size M10 to M24
- collar outside diameter – Table 22, sealing face diameter d1, all types, up to DN 250
This information does not replace the standard itself. Only the limit deviations for the size selected here are reproduced. In full – for all nominal sizes, pressure ratings and flange types – they are given in DIN EN 1092-1:2018-12, Table 22 and Table 23. Where to obtain it: DIN Media.
Why limit deviations exist at all and how to read them is explained on a page of its own: Tolerances and limit deviations.
Not in the dimensional drawing: DN 450 PN 40 (Loose flange with welding neck collar) – the standard does not specify the flange thickness or the bore B of the loose flange
Dimensions are nominal dimensions to EN 1092-1 and do not replace the data sheet of the actual item. No statement about pressure or temperature suitability and no statement about the material. DN is a reference number, not a dimension in millimetres – the inside diameter differs from it. Direct link to this size
How to measure correctly
Four measurements identify a flange: outside diameter D, bolt circle K, the number and diameter of the bolt holes n × L, and the flange thickness C. Measure the bolt circle from the centre of one hole to the centre of the opposite hole – or, more easily, from the outer edge of one hole to the inner edge of the opposite one, which gives the same value. Measure the flange thickness from the sealing face to the back of the plate: a raised face is already included in C.
- outside diameter D
- largest diameter of the flange plate, measured across the edge
- bolt circle diameter K
- diameter of the circle through the centres of the bolt holes – with an even number of holes, from hole centre to opposite hole centre
- bolt holes n × L
- count the holes, then measure the diameter of one hole – the hole is always larger than the bolt (example: hole 18 mm, bolt M16)
- raised-face diameter d1
- diameter of the raised face, measured across its outer edge
- distance between adjacent bolt holes
- with equal holes, measure from the outer edge of one hole to the inner edge of the other hole (in the measuring direction that is the same side) – half a hole here cancels half a hole there: exactly the centre distance. Applies to the bolt circle K as to the hole spacing, as long as both holes are the same size
- flange thickness C1
- measure the thickness of the loose ring, not of the collar
- bore of the loose flange B
- inside diameter of the ring – it sits with clearance over the collar and can be turned
- collar outside diameter d1
- outside diameter of the collar – the seal is made on it, not on the loose flange
- collar thickness F
- thickness of the collar disc
- collar height H2
- overall height of the welding neck collar including the neck
- hub diameter of the collar N1
- measure at the transition to the collar disc, where the neck is thickest – not at the weld end
- wall thickness at the weld end of the collar S
- full wall at the end plane of the neck – that is the thin end, with a bore taper Sp = pipe wall stands there
- chamfer at the bore E
- axial length of the chamfer at the collar-side edge of bore B – it faces the collar
A measured value rarely matches the table exactly: EN 1092-1 allows ±1.0 mm on the bolt circle (bolts up to M24), ±2.0 mm on the outside diameter up to DN 150 and +1.0/−1.3 mm on a flange thickness up to 18 mm. The dimensional drawing on this page shows the limit deviations for each size.
Connection dimensions are the same across types: outside diameter D, bolt circle (also called bolt circle diameter/BCD or pitch circle diameter/PCD) K, bolt holes n × L and raised face d₁ apply per DN and PN to all flange types to EN 1092-1 – they are included in the tables here. For the type-independent overview of all pressure ratings, see our flange dimensions PN 6 to PN 40; type-specific here are the bore B₂/B₃, flange thickness C₁, collar thickness F and collar height H₂.
In the loose flange system, the collar welded to the pipe provides the sealing function, while the loose flange turns freely on the pipe and transmits only the bolt loads. That makes assembly easy (bolt-hole patterns can always be aligned) and allows an economical material mix: only the media-wetted collar needs to be stainless steel, while the flange can be galvanised steel. Type 02 pairs with the weld-on plate collar 32 (fillet weld), type 04 with the butt-welded welding neck collar 34. For an overview of all styles, see our page flange types international; the other type pages: type 11, type 05, type 01 and type 13.
The column headers use the dimension letters from the drawings: A = pipe outside diameter, n × ØL = number × diameter of bolt holes, M = bolt size, d₁ = collar outside diameter/sealing face, K = bolt circle, D = outside diameter of the loose flange, B₂/B₃ = bore of the loose flange, C₁ = flange thickness, F = collar thickness, H₂ = collar height (welding neck collar 34 only).
Loose flange type 02 with weld-on plate collar 32 (PN 6–40)
PN 6 – dimension table
For PN 6, EN 1092-1 lists a complete range of sizes - our dimension overview does not show their dimensions at present. Tell us the nominal size and we will tell you what we know about it. Some of these sizes are listed below under "Further deliverable dimensions".
PN 10 – dimension table (DN 10–800)
Show full table · more than 20 rows
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₂ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 17.2 | 4 × 14 | M12 | 40 | 60 | 90 | 21 | 14 | 12 | 0.591 | 0.094 |
| 15 | 21.3 | 4 × 14 | M12 | 45 | 65 | 95 | 25 | 14 | 12 | 0.654 | 0.114 |
| 20 | 26.9 | 4 × 14 | M12 | 58 | 75 | 105 | 31 | 16 | 14 | 0.909 | 0.225 |
| 25 | 33.7 | 4 × 14 | M12 | 68 | 85 | 115 | 38 | 16 | 14 | 1.08 | 0.296 |
| 32 | 42.4 | 4 × 18 | M16 | 78 | 100 | 140 | 47 | 18 | 14 | 1.77 | 0.362 |
| 40 | 48.3 | 4 × 18 | M16 | 88 | 110 | 150 | 53 | 18 | 14 | 2.02 | 0.457 |
| 50 | 60.3 | 4 × 18 | M16 | 102 | 125 | 165 | 65 | 20 | 16 | 2.52 | 0.653 |
| 65 8 | 76.1 | 8 × 18 | M16 | 122 | 145 | 185 | 81 | 20 | 16 | 3.05 | 0.876 |
| 80 | 88.9 | 8 × 18 | M16 | 138 | 160 | 200 | 94 | 20 | 16 | 3.48 | 1.07 |
| 100 | 114.3 | 8 × 18 | M16 | 158 | 180 | 220 | 120 | 22 | 18 | 4.20 | 1.28 |
| 125 | 139.7 | 8 × 18 | M16 | 188 | 210 | 250 | 145 | 22 | 18 | 5.21 | 1.70 |
| 150 | 168.3 | 8 × 22 | M20 | 212 | 240 | 285 | 174 | 24 | 20 | 6.89 | 1.96 |
| 200 | 219.1 | 8 × 22 | M20 | 268 | 295 | 340 | 226 | 24 | 20 | 8.87 | 2.81 |
| 250 | 273.0 | 12 × 22 | M20 | 320 | 350 | 395 | 281 | 26 | 22 | 11.2 | 3.52 |
| 300 | 323.9 | 12 × 22 | M20 | 370 | 400 | 445 | 333 | 26 | 22 | 12.8 | 4.02 |
| 350 | 355.6 | 16 × 22 | M20 | 430 | 460 | 505 | 365 | 30 | 22 | 19.4 | 7.55 |
| 400 | 406.4 | 16 × 26 | M24 | 482 | 515 | 565 | 416 | 32 | 24 | 26.4 | 9.38 |
| 450 | 457 | 20 × 26 | M24 | 532 | 565 | 615 | 467 | 36 | 24 | 32.2 | 10.3 |
| 500 | 508 | 20 × 26 | M24 | 585 | 620 | 670 | 519 | 38 | 26 | 38.5 | 12.6 |
| 600 | 610 | 20 × 30 | M27 | 685 | 725 | 780 | 622 | 42 | 26 | 52.2 | 14.3 |
| 700 6 | 711 | 24 × 30 | M27 | 800 | 840 | 895 | 721 | 50 | – | 79.4 | – |
| 800 6 | 813 | 24 × 33 | M30 | 905 | 950 | 1015 | 824 | 56 | – | 112 | – |
PN 16 – dimension table (DN 50–800)
Show full table · more than 10 rows
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₂ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 60.3 | 4 × 18 | M16 | 102 | 125 | 165 | 65 | 20 | 16 | 2.52 | 0.653 |
| 65 8 | 76.1 | 8 × 18 | M16 | 122 | 145 | 185 | 81 | 20 | 16 | 3.05 | 0.876 |
| 80 | 88.9 | 8 × 18 | M16 | 138 | 160 | 200 | 94 | 20 | 16 | 3.48 | 1.07 |
| 100 | 114.3 | 8 × 18 | M16 | 158 | 180 | 220 | 120 | 22 | 18 | 4.20 | 1.28 |
| 125 | 139.7 | 8 × 18 | M16 | 188 | 210 | 250 | 145 | 22 | 18 | 5.21 | 1.70 |
| 150 | 168.3 | 8 × 22 | M20 | 212 | 240 | 285 | 174 | 24 | 20 | 6.89 | 1.96 |
| 200 | 219.1 | 12 × 22 | M20 | 268 | 295 | 340 | 226 | 26 | 20 | 9.31 | 2.81 |
| 250 | 273.0 | 12 × 26 | M24 | 320 | 355 | 405 | 281 | 29 | 22 | 13.5 | 3.52 |
| 300 | 323.9 | 12 × 26 | M24 | 378 | 410 | 460 | 333 | 32 | 24 | 18.0 | 5.27 |
| 350 | 355.6 | 16 × 26 | M24 | 438 | 470 | 520 | 365 | 35 | 26 | 27.0 | 10.1 |
| 400 | 406.4 | 16 × 30 | M27 | 490 | 525 | 580 | 416 | 38 | 28 | 34.6 | 12.3 |
| 450 | 457 | 20 × 30 | M27 | 550 | 585 | 640 | 467 | 42 | 30 | 44.6 | 16.5 |
| 500 | 508 | 20 × 33 | M30 | 610 | 650 | 715 | 519 | 46 | 32 | 62.0 | 21.4 |
| 600 | 610 | 20 × 36 | M33 | 725 | 770 | 840 | 622 | 55 | 32 | 98.8 | 28.7 |
| 700 6 | 711 | 24 × 36 | M33 | 795 | 840 | 910 | 721 | 63 | – | 107 | – |
| 800 6 | 813 | 24 × 39 | M36 | 900 | 950 | 1025 | 824 | 74 | – | 152 | – |
PN 25 – dimension table (DN 65–600)
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₂ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 65 | 76.1 | 8 × 18 | M16 | 122 | 145 | 185 | 81 | 22 | 16 | 3.36 | 0.876 |
| 80 | 88.9 | 8 × 18 | M16 | 138 | 160 | 200 | 94 | 24 | 18 | 4.18 | 1.20 |
| 100 | 114.3 | 8 × 22 | M20 | 162 | 190 | 235 | 120 | 26 | 20 | 5.87 | 1.58 |
| 125 | 139.7 | 8 × 26 | M24 | 188 | 220 | 270 | 145 | 28 | 22 | 7.95 | 2.08 |
| 150 | 168.3 | 8 × 26 | M24 | 218 | 250 | 300 | 174 | 30 | 24 | 9.97 | 2.73 |
| 200 | 219.1 | 12 × 26 | M24 | 278 | 310 | 360 | 226 | 32 | 26 | 13.8 | 4.52 |
| 250 | 273.0 | 12 × 30 | M27 | 335 | 370 | 425 | 281 | 35 | 26 | 19.4 | 5.73 |
| 300 | 323.9 | 16 × 30 | M27 | 395 | 430 | 485 | 333 | 38 | 28 | 25.5 | 8.42 |
| 350 | 355.6 | 16 × 33 | M30 | 450 | 490 | 555 | 365 | 42 | 32 | 40.5 | 14.5 |
| 450 | 457 | 20 × 36 | M33 | 555 | 600 | 670 | 467 | 54 | 36 | 67.8 | 21.0 |
| 500 | 508 | 20 × 36 | M33 | 615 | 660 | 730 | 519 | 58 | 38 | 84.6 | 26.8 |
| 600 | 610 | 20 × 39 | M36 | 720 | 770 | 845 | 622 | 68 | 40 | 124 | 34.1 |
PN 40 – dimension table (DN 15–300)
Show full table · more than 10 rows
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₂ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 21.3 | 4 × 14 | M12 | 45 | 65 | 95 | 25 | 14 | 12 | 0.654 | 0.114 |
| 20 | 26.9 | 4 × 14 | M12 | 58 | 75 | 105 | 31 | 16 | 14 | 0.909 | 0.225 |
| 25 | 33.7 | 4 × 14 | M12 | 68 | 85 | 115 | 38 | 16 | 14 | 1.08 | 0.296 |
| 32 | 42.4 | 4 × 18 | M16 | 78 | 100 | 140 | 47 | 18 | 14 | 1.77 | 0.362 |
| 40 | 48.3 | 4 × 18 | M16 | 88 | 110 | 150 | 53 | 18 | 14 | 2.02 | 0.457 |
| 50 | 60.3 | 4 × 18 | M16 | 102 | 125 | 165 | 65 | 20 | 16 | 2.65 | 0.653 |
| 65 | 76.1 | 8 × 18 | M16 | 122 | 145 | 185 | 81 | 22 | 16 | 3.36 | 0.876 |
| 80 | 88.9 | 8 × 18 | M16 | 138 | 160 | 200 | 94 | 24 | 18 | 4.18 | 1.20 |
| 100 | 114.3 | 8 × 22 | M20 | 162 | 190 | 235 | 120 | 26 | 20 | 5.87 | 1.58 |
| 125 | 139.7 | 8 × 26 | M24 | 188 | 220 | 270 | 145 | 28 | 22 | 7.95 | 2.08 |
| 150 | 168.3 | 8 × 26 | M24 | 218 | 250 | 300 | 174 | 30 | 24 | 9.97 | 2.73 |
| 200 | 219.1 | 12 × 30 | M27 | 285 | 320 | 375 | 226 | 36 | 28 | 17.4 | 5.55 |
| 250 | 273.0 | 12 × 33 | M30 | 345 | 385 | 450 | 281 | 42 | 30 | 28.4 | 7.87 |
| 300 | 323.9 | 16 × 33 | M30 | 410 | 450 | 515 | 333 | 52 | 34 | 43.6 | 12.8 |
Further deliverable dimensions (37)
Show full table · more than 30 rows
| DN | PN |
|---|---|
| 10 | 6 |
| 15 | 6 |
| 20 | 6 |
| 25 | 6 |
| 32 | 6 |
| 40 | 6 |
| 50 | 6 |
| 65 | 6 |
| 80 | 6 |
| 100 | 6 |
| 125 | 6 |
| 150 | 6 |
| 200 | 6 |
| 250 | 6 |
| 300 | 6 |
| 350 | 6 |
| 400 | 6 |
| 450 | 6 |
| 500 | 6 |
| 600 | 6 |
| 10 | 16 |
| 15 | 16 |
| 20 | 16 |
| 25 | 16 |
| 32 | 16 |
| 40 | 16 |
| 15 | 25 |
| 20 | 25 |
| 25 | 25 |
| 32 | 25 |
| 40 | 25 |
| 50 | 25 |
| 400 | 25 |
| 10 | 40 |
| 350 | 40 |
| 400 | 40 |
| 450 | 40 |
Order dimensions and values calculated by us; deliverable from stock or to order, availability on request. Limit deviations and figures from the standard: see the main table and the standard itself.
Loose flange type 04 with welding neck collar 34 (PN 10–40)
PN 10 – dimension table (DN 200–600)
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₃ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | H₂ (mm) | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 200 | 219.1 | 8 × 22 | M20 | 268 | 295 | 340 | 240 | 24 | 20 | 62 | 7.90 | 5.49 |
| 250 | 273.0 | 12 × 22 | M20 | 320 | 350 | 395 | 294 | 26 | 22 | 68 | 9.99 | 7.53 |
| 300 | 323.9 | 12 × 22 | M20 | 370 | 400 | 445 | 348 | 26 | 22 | 68 | 11.1 | 9.11 |
| 350 | 355.6 | 16 × 22 | M20 | 430 | 460 | 505 | 400 | 30 | 22 | 68 | 14.7 | 14.1 |
| 400 | 406.4 | 16 × 26 | M24 | 482 | 515 | 565 | 450 | 32 | 24 | 72 | 20.5 | 17.8 |
| 450 | 457 | 20 × 26 | M24 | 532 | 565 | 615 | 498 | 36 | 24 | 72 | 25.5 | 19.6 |
| 500 | 508 | 20 × 26 | M24 | 585 | 620 | 670 | 550 | 38 | 26 | 75 | 30.7 | 23.7 |
| 600 | 610 | 20 × 30 | M27 | 685 | 725 | 780 | 650 | 42 | 26 | 82 | 43.0 | 28.9 |
PN 16 – dimension table (DN 50–600)
Show full table · more than 10 rows
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₃ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | H₂ (mm) | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 60.3 | 4 × 18 | M16 | 102 | 125 | 165 | 77 | 20 | 16 | 45 | 2.34 | 0.974 |
| 65 8 | 76.1 | 8 × 18 | M16 | 122 | 145 | 185 | 96 | 20 | 16 | 45 | 2.76 | 1.29 |
| 80 | 88.9 | 8 × 18 | M16 | 138 | 160 | 200 | 108 | 20 | 16 | 50 | 3.17 | 1.67 |
| 100 | 114.3 | 8 × 18 | M16 | 158 | 180 | 220 | 134 | 22 | 18 | 52 | 3.78 | 2.12 |
| 125 | 139.7 | 8 × 18 | M16 | 188 | 210 | 250 | 162 | 22 | 18 | 55 | 4.57 | 2.88 |
| 150 | 168.3 | 8 × 22 | M20 | 212 | 240 | 285 | 188 | 24 | 20 | 55 | 6.22 | 3.46 |
| 200 | 219.1 | 12 × 22 | M20 | 268 | 295 | 340 | 240 | 26 | 20 | 62 | 8.37 | 5.55 |
| 250 | 273.0 | 12 × 26 | M24 | 320 | 355 | 405 | 294 | 29 | 22 | 70 | 12.4 | 7.71 |
| 300 | 323.9 | 12 × 26 | M24 | 378 | 410 | 460 | 348 | 32 | 24 | 78 | 16.3 | 11.4 |
| 350 | 355.6 | 16 × 26 | M24 | 438 | 470 | 520 | 400 | 35 | 26 | 82 | 21.5 | 19.2 |
| 400 | 406.4 | 16 × 30 | M27 | 490 | 525 | 580 | 454 | 38 | 28 | 85 | 27.1 | 23.7 |
| 450 | 457 | 20 × 30 | M27 | 550 | 585 | 640 | 500 | 42 | 30 | 83 | 36.7 | 28.2 |
| 500 | 508 | 20 × 33 | M30 | 610 | 650 | 715 | 556 | 46 | 32 | 84 | 51.1 | 35.5 |
| 600 | 610 | 20 × 36 | M33 | 725 | 770 | 840 | 660 | 55 | 32 | 88 | 78.3 | 47.9 |
PN 25 – dimension table (DN 200–600)
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₃ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | H₂ (mm) | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 200 | 219.1 | 12 × 26 | M24 | 278 | 310 | 360 | 250 | 32 | 26 | 80 | 11.6 | 9.07 |
| 250 | 273.0 | 12 × 30 | M27 | 335 | 370 | 425 | 302 | 35 | 26 | 88 | 17.0 | 12.7 |
| 300 | 323.9 | 16 × 30 | M27 | 395 | 430 | 485 | 356 | 38 | 28 | 92 | 22.0 | 18.0 |
| 350 | 355.6 | 16 × 33 | M30 | 450 | 490 | 555 | 408 | 42 | 32 | 100 | 32.1 | 27.8 |
| 400 | 406.4 | 16 × 36 | M33 | 505 | 550 | 620 | 462 | 48 | 34 | 110 | 44.5 | 36.3 |
| 450 | 457 | 20 × 36 | M33 | 555 | 600 | 670 | 510 | 54 | 36 | 110 | 54.2 | 40.9 |
| 500 | 508 | 20 × 36 | M33 | 615 | 660 | 730 | 568 | 58 | 38 | 125 | 65.9 | 55.7 |
| 600 | 610 | 20 × 39 | M36 | 720 | 770 | 845 | 670 | 68 | 40 | 125 | 98.4 | 70.5 |
PN 40 – dimension table (DN 15–450)
Show full table · more than 10 rows
| DN | Pipe OD (mm) | n × ØL (mm) | M 1 | Ød₁ (mm) 2 | ØK (mm) | ØD (mm) | ØB₃ (mm) 3 | C₁ (mm) 4 | F (mm) 5 | H₂ (mm) | Flange wt. (kg) 7 | Collar wt. (kg) 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 21.3 | 4 × 14 | M12 | 45 | 65 | 95 | 35 | 14 | 12 | 38 | 0.606 | 0.189 |
| 20 | 26.9 | 4 × 14 | M12 | 58 | 75 | 105 | 42 | 16 | 14 | 40 | 0.836 | 0.340 |
| 25 | 33.7 | 4 × 14 | M12 | 68 | 85 | 115 | 49 | 16 | 14 | 40 | 0.990 | 0.444 |
| 32 | 42.4 | 4 × 18 | M16 | 78 | 100 | 140 | 59 | 18 | 14 | 42 | 1.65 | 0.572 |
| 40 | 48.3 | 4 × 18 | M16 | 88 | 110 | 150 | 67 | 18 | 14 | 45 | 1.85 | 0.734 |
| 50 | 60.3 | 4 × 18 | M16 | 102 | 125 | 165 | 77 | 20 | 16 | 48 | 2.47 | 1.02 |
| 65 | 76.1 | 8 × 18 | M16 | 122 | 145 | 185 | 96 | 22 | 16 | 52 | 3.04 | 1.36 |
| 80 | 88.9 | 8 × 18 | M16 | 138 | 160 | 200 | 114 | 24 | 18 | 58 | 3.61 | 1.90 |
| 100 | 114.3 | 8 × 22 | M20 | 162 | 190 | 235 | 138 | 26 | 20 | 65 | 5.18 | 2.77 |
| 125 | 139.7 | 8 × 26 | M24 | 188 | 220 | 270 | 166 | 28 | 22 | 68 | 6.89 | 3.78 |
| 150 | 168.3 | 8 × 26 | M24 | 218 | 250 | 300 | 194 | 30 | 24 | 75 | 8.69 | 5.25 |
| 200 | 219.1 | 12 × 30 | M27 | 285 | 320 | 375 | 250 | 36 | 28 | 88 | 14.9 | 10.2 |
| 250 | 273.0 | 12 × 33 | M30 | 345 | 385 | 450 | 312 | 42 | 30 | 105 | 23.8 | 16.4 |
| 300 | 323.9 | 16 × 33 | M30 | 410 | 450 | 515 | 368 | 52 | 34 | 115 | 36.0 | 25.4 |
| 350 | 355.6 | 16 × 36 | M33 | 465 | 510 | 580 | 418 | 58 | 36 | 125 | 50.4 | 37.8 |
| 400 | 406.4 | 16 × 39 | M36 | 535 | 585 | 660 | 472 | 65 | 42 | 135 | 75.5 | 56.4 |
| 450 | 457 | 20 × 39 | M36 | 560 | 610 | 685 | 510 | – | 46 | 135 | – | 56.4 |
Further deliverable dimensions (31)
Show full table · more than 30 rows
| DN | PN |
|---|---|
| 10 | 10 |
| 15 | 10 |
| 20 | 10 |
| 25 | 10 |
| 32 | 10 |
| 40 | 10 |
| 50 | 10 |
| 65 | 10 |
| 80 | 10 |
| 100 | 10 |
| 125 | 10 |
| 150 | 10 |
| 10 | 16 |
| 15 | 16 |
| 20 | 16 |
| 25 | 16 |
| 32 | 16 |
| 40 | 16 |
| 10 | 25 |
| 15 | 25 |
| 20 | 25 |
| 25 | 25 |
| 32 | 25 |
| 40 | 25 |
| 50 | 25 |
| 65 | 25 |
| 80 | 25 |
| 100 | 25 |
| 125 | 25 |
| 150 | 25 |
| 10 | 40 |
Order dimensions and values calculated by us; deliverable from stock or to order, availability on request. Limit deviations and figures from the standard: see the main table and the standard itself.
How to order unambiguously: the designation to EN 1092-1
Both parts are designated separately – each with type number, sealing face form (for the collar), nominal size, pressure rating and material. A loose flange system DN 100, PN 16 with a galvanised steel flange and a stainless steel collar is therefore designated, for example:
Flange EN 1092-1/02/DN 100/PN 16/S235JR
Collar EN 1092-1/32 B1/DN 100/PN 16/1.4571
Correspondingly for the system with welding neck collar: Flange EN 1092-1/04/DN 100/PN 16/S235JR plus Collar EN 1092-1/34 B1/DN 100/PN 16/1.4571. The sealing face form belongs to the collar – the loose flange has no sealing face.
1 M = metric bolt size to EN 1092-1; the bolt-hole diameter ØL is always larger than the bolt thread.
2 d₁ = outside diameter of the collar, also the raised-face diameter of the sealing face (the collar forms the sealing face of the system).
3 B₂/B₃ = bore of the loose flange (in the standard: “bore diameter”; B₂ applies to type 02, B₃ to type 04). It is sized so the flange fits with clearance over the pipe and collar (type 02) or over the hub of the welding neck collar (type 04).
4 C₁ = flange thickness of the loose flange (without raised face – the sealing face sits on the collar).
5 F = collar thickness; it applies equally to the weld-on plate collar 32 and the welding neck collar 34.
6 For DN 700 and DN 800, EN 1092-1 does not specify the weld-on plate collar 32 (“–”) – lap joint stub ends (type 33/36) or execution by agreement are common there, available on request.
7 Weights are indicative values for steel parts per individual component (flange or collar); minor deviations are possible depending on manufacturer and design.
8 DN 65 has 8 bolt holes at PN 10 and PN 16 to EN 1092-1. Cast-iron flanges to EN 1092-2 and copper-alloy flanges to EN 1092-3 may have 4 holes in this size, steel flanges only by agreement between manufacturer and purchaser. Older flanges to DIN 2501 have 4 holes here and are still common in existing plant – check the bolt-hole pattern for replacement and extension orders.
The type 04 system with welding neck collar 34 is not standardised in PN 6. For DN 10 to DN 40 the dimensions of pressure ratings PN 10, PN 16 and PN 25 are identical to PN 40; for DN 50 to DN 150 this applies to PN 10 with PN 16 and to PN 25 with PN 40 respectively. At PN 40, both systems end at DN 400.
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Send us your inquiryFrequently asked questions
Where do I find the dimensions of a loose flange DN 50 PN 10 to EN 1092-1 type 02 and 04?
The dimension table on this page lists all available sizes to EN 1092-1 type 02 and 04; the dimensional drawing above it shows the selected size with all dimensions and tolerances and can be printed as a PDF - the data sheet for your size.
About this dimension table
Dimensions of the loose flange type 02 and 04 to EN 1092-1 (formerly DIN 2642) with the dimensional drawing of your size – available from stock or to order. The two-piece loose flange systems to EN 1092-1 in one table per pressure rating: loose flange type 02 with weld-on plate collar 32 (PN 6 to PN 40) and loose flange type 04 with welding neck collar 34 (PN 10 to PN 40) – with bore B₂/B₃, flange thickness C₁, collar thickness F, collar height H₂, the connection dimensions D, K, n × L, d₁ and indicative weights per part. All dimensions in millimetres, dimension letters to EN 1092-1.
The dimensional drawing – also called dimension sheet, outline drawing or dimension sketch – shows every dimension, the bolt pattern and the tolerances for your size.
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How this data is compiled. This page does not reproduce a standard. It shows the dimensions you need for an enquiry, an order and installation – for sizes we supply, checked against manufacturers’ and suppliers’ documentation and against our own product data. What you see here is what the market supplies, checked against the standard – or calculated by us. How we select our sources and keep them up to date: About this knowledge.
Dimensions: as the market supplies them – from manufacturers’ and suppliers’ documentation and from our own product data, checked against EN 1092-1; type dimensions of type 04 to EN 1092-1. All information without guarantee – the current standard texts and the manufacturers’ technical data sheets always prevail. Values selected according to our delivery and stock programme; compiled from our own ERP data and long-standing trading practice, cross-checked against publicly available manufacturer information and reference tables. These tables do not replace the standard text – the current edition of the standard always governs.