Company Niro Steel d.o.o. Jesenice was founded in 1994 as a privately owned company with limited liability. Our main activity is a production of flanges and other products made of stainless steel. From its very beginning, the company is very export-oriented, its main markets are the EU and Switzerland. Keywords: Flanges , Flange , Stainless , INOX , Sheet metal , Cutting , Collars , Machine parts , Niro Steel
| Item Type | Dimensional Tolerance Standard1 |
|---|---|
| EN 1092-1 Typ01, 02, 32, 04, 05, 12, 13 | EN 1092-1 ( 43, Tb 14) |
| DIN 2519 | |
| ASME/ANSI B16.5 class150, 300, 400, 600 | ANSI B16.5 Chapter 7 |
| Flange (VSM) | VSM18750 |
| Flange (JIS B 2220:2004) | JIS B2220 (Page35 Tb.10) |
| Flange NF E 29-203 | NF E 29- 203 Chapter 6 |
| Smooth and oval flanges according to WN 1K... |
WN 1K 3.210.01 WN 1K 3.410.01 WN 1K 3.510.01 WN 1K 3.510.02 WN 1K 3.511.01 WN 1K 3.521.01 |
| Smooth and oval flanges according to WN 5... |
WN 5 20.004.005 WN 5 20.004.006 WN 5 20.004.010 |
| Countersinking for countersunk bolts |
DIN 66 DIN74 |
| General Tolerance | ISO 2768-1, ISO 2768-2 |
| General tolerances for hot-rolled steel sheet | EN 10029 |
| General tolerances for ISO Thread | DIN13-50, 51, 52 DIN ISO 965-1, -3 |
| General tolerances for thermal cutting (2) | EN ISO 9013:2002 |
| (1) Unless otherwise requested or specified (2) Tolerance for chips Niro steel in Tb.3 |
|
| Dimensions | TYP Flange | Size | Tolerance |
|---|---|---|---|
| inner diameter B1, B2 | 01, 02, 04, 12, 32 | <= DN100 | +0,5 / 0 |
| > DN100 <= DN400 | +1,0 / 0 | ||
| > DN400 <= DN600 | +1,5 / 0 | ||
| > DN600 | +3,0 / 0 | ||
| outer diameter D | Vsi Typi | <= DN150 | +2,0 / -2,0 |
| > DN150 <= DN500 | +3,0 / -3,0 | ||
| > DN500 <= DN1200 | +5,0 / -5,0 | ||
| height of flange H1 | 012, 013 | <= DN80 | +1,5 / -1,5 |
| > DN80 <= DN250 | +2,0 / -2,0 | ||
| > DN250 | +3,0 / -3,0 | ||
| The diameter of the welding nozzle N1 | 12, 13 | <= DN50 | +1,0 / 0 |
| > DN50 <= DN150 | +2,0 / 0 | ||
| > DN150 <= DN300 | +4,0 / 0 | ||
| flange thickness C1, C2, C4 | all types (machined on both sides) |
| +1,0 / -1,0 |
|
| Thick. > 18 <= 50mm | +1,5 / -1,5 | ||
| all types (machined on one side) |
Thick. <= 18mm | +2,0 / -1,3 | |
| Thick. > 18 <= 50mm | +4,0 / -1,5 | ||
| Thick. K | all types | thread M10-M24 | +1,0 / -1,0 |
| M27-M45 | +1,5 / -1,5 | ||
| Center spacing of adjacent holes | all types | thread M10-M24 | +1,0 / -1,0 |
| M27-M45 | +1,5 / -1,5 | ||
| Parallelism between nut bearing surface and sealing surface | all types (machined on both sides) |
For all DN | 1 º |
| All types (not machined) | 2 º | ||
