Our high-performance stud bolting solutions are the preferred choice for high-pressure EN 1092-1 and EN 1092-2 PN16 to PN100+ flanged joints. Each set features a stud bolt paired with two heavy hex nuts and two optional hardened plain washers, delivering optimal preload control and uniform clamping force. These assemblies offer excellent vibration resistance and ensure superior joint integrity.
Available size for pipe flange PN 16
| Size | Flange bolting | Stud bolt | Heavy hex nut and plain washer | Ref. No. |
|---|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 4 x 14 | M12 x 70 | M12 | NE4701-PN16 |
| 3/4″ / DN20 / 26.9mm | 4 x 14 | M12 x 75 | M12 | NE4702-PN16 |
| 1″ / DN25 / 33.7mm | 4 x 14 | M12 x 75 | M12 | NE4703-PN16 |
| 1-1/4″ / DN32 / 42.4mm | 4 x 18 | M16 x 85 | M16 | NE4704-PN16 |
| 1-1/2″ / DN40 / 48.3mm | 4 x 18 | M16 x 85 | M16 | NE4705-PN16 |
| 2″ / DN50 / 60.3mm | 4 x 18 | M16 x 85 | M16 | NE4706-PN16 |
| 2-1/2″ / DN65 / 76.1mm | 8 (4) x 18 | M16 x 85 | M16 | NE4707-PN16 |
| 3″ / DN80 / 88.9mm | 8 x 18 | M16 x 90 | M16 | NE4708-PN16 |
| 4″ / DN100 / 114.3mm | 8 x 18 | M16 x 90 | M16 | NE4709-PN16 |
| 5″ / DN125 / 139.7mm | 8 x 18 | M16 x 95 | M16 | NE4710-PN16 |
| 6″ / DN150 / 165.1 / 168.3mm | 8 x 22 | M20 x 105 | M20 | NE4711-PN16 |
| 8″ / DN200 / 219.1mm | 12 x 22 | M20 x 105 | M20 | NE4712-PN16 |
| 10″ / DN250 / 273.0mm | 12 x 26 | M24 x 120 | M24 | NE4713-PN16 |
| 12″ / DN300 / 323.9mm | 12 x 26 | M24 x 125 | M24 | NE4714-PN16 |
| 14″ / DN350 / 355.6mm | 16 x 26 | M24 x 130 | M24 | NE4715-PN16 |
Note:
Please download our catalog for more available sizes.
Available size for pipe flange PN 25
| Size | Flange bolting | Stud bolt | Heavy hex nut and plain washer | Ref. No. |
|---|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 4 x 14 | M12 x 70 | M12 | NE4701-PN25 |
| 3/4″ / DN20 / 26.9mm | 4 x 14 | M12 x 75 | M12 | NE4702-PN25 |
| 1″ / DN25 / 33.7mm | 4 x 14 | M12 x 75 | M12 | NE4703-PN25 |
| 1-1/4″ / DN32 / 42.4mm | 4 x 18 | M16 x 85 | M16 | NE4704-PN25 |
| 1-1/2″ / DN40 / 48.3mm | 4 x 18 | M16 x 85 | M16 | NE4705-PN25 |
| 2″ / DN50 / 60.3mm | 4 x 18 | M16 x 90 | M16 | NE4706-PN25 |
| 2-1/2″ / DN65 / 76.1mm | 8 x 18 | M16 x 95 | M16 | NE4707-PN25 |
| 3″ / DN80 / 88.9mm | 8 x 18 | M16 x 95 | M16 | NE4708-PN25 |
| 4″ / DN100 / 114.3mm | 8 x 22 | M20 x 105 | M20 | NE4709-PN25 |
| 5″ / DN125 / 139.7mm | 8 x 26 | M24 x 120 | M24 | NE4710-PN25 |
| 6″ / DN150 / 165.1 / 168.3mm | 8 x 26 | M24 x 125 | M24 | NE4711-PN25 |
| 8″ / DN200 / 219.1mm | 12 x 26 | M24 x 130 | M24 | NE4712-PN25 |
| 10″ / DN250 / 273.0mm | 12 x 30 | M27 x 140 | M27 | NE4713-PN25 |
| 12″ / DN300 / 323.9mm | 16 x 30 | M27 x 145 | M27 | NE4714-PN25 |
| 14″ / DN350 / 355.6mm | 16 x 33 | M30 x 155 | M30 | NE4715-PN25 |
Note:
Please download our catalog for more available sizes.
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