Technical information / Connection standards / EN 1092-1 · Type 13
End connection standard
EN 1092-1 · TYPE 13
Threaded flange dimensions
The CSV uses semicolons as separators. The link carries the selected PN, edition and DN.
| DN | Thread | Pipe Ømajor dia. | D | k | n × bolt | d2 | bEN | h1EN | d3 | d4 | f | kgEN |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN15 | R 1/2" | 21.3 | 95 | 65 | 4 × M12 | 14 | 16 | 22 | 35 | 45 | 2 | 0.7 |
| DN20 | R 3/4" | 26.9 | 105 | 75 | 4 × M12 | 14 | 18 | 26 | 45 | 58 | 2 | 1 |
| DN25 | R 1" | 33.7 | 115 | 85 | 4 × M12 | 14 | 18 | 28 | 52 | 68 | 2 | 1.2 |
| DN32 | R 1 1/4" | 42.4 | 140 | 100 | 4 × M16 | 18 | 18 | 30 | 60 | 78 | 2 | 1.8 |
| DN40 | R 1 1/2" | 48.3 | 150 | 110 | 4 × M16 | 18 | 18 | 32 | 70 | 88 | 3 | 2 |
| DN50 | R 2" | 60.3 | 165 | 125 | 4 × M16 | 18 | 18 | 32 | 84 | 102 | 3 | 2.6 |
| DN65 | R 2 1/2" | 76.1 | 185 | 145 | 8 × M16 | 18 | 18 | 32 | 104 | 122 | 3 | 3.2 |
| DN80 | R 3" | 88.9 | 200 | 160 | 8 × M16 | 18 | 20 | 34 | 118 | 138 | 3 | 4.1 |
| DN100 | R 4" | 114.3 | 220 | 180 | 8 × M16 | 18 | 20 | 40 | 140 | 158 | 3 | 4.7 |
| DN125 | R 5" | 139.7 | 250 | 210 | 8 × M16 | 18 | 22 | 44 | 168 | 188 | 3 | 6.07 |
| DN150 | R 6" | 168.3 | 285 | 240 | 8 × M20 | 22 | 22 | 44 | 195 | 212 | 3 | 7.83 |
Notes
- This table has been compiled by Emsal from the relevant standards. For the full text of the standard, refer to your national standards body.
- The flange's internal thread is an ISO 7-1 taper pipe thread (R); the pipe outside diameter is that of the pipe matching the thread size.
- DIN 2566 flanges are thinner than EN in DN15–40 and have a different hub length (h1); select the DIN edition to see them. Connection dimensions are the same in both editions.
- Accuracy and currency are not guaranteed; use the current edition of the standard for design and purchasing decisions. How the library is compiled →
Dimension letters
| D | Flange outside diameter | d3 | Hub diameter |
| k | Bolt circle diameter | d4 | Raised face diameter |
| b | Flange thickness | f | Raised face height |
| h1 | Length through hub | d2 | Bolt hole diameter |
Joint type and P&ID symbol
The threaded flange is screwed onto the pipe; no welding is needed. Sealing is made on the thread (taper thread with sealing tape or compound).
flangepipegasketweldbolt, nut
- Cut a taper external thread on the pipe end (EN 1092-1: R thread, ASME: NPT).
- Apply sealing tape or compound to the thread and screw on the flange.
- Fit the gasket and tighten the bolts in a cross pattern.
Used where welding is not possible (flammable areas, galvanised pipe) and on small-bore low-pressure lines. Thermal expansion and vibration can cause thread leaks.
P&ID: Flanged jointTwo short heavy lines perpendicular to the pipeline; the flange type is not shown on the diagram but given in the line list. Symbol library →
Not to scale; proportions are indicative.
