Flange - Flange - Dovoljena dimeznijska odstopanja

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

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Dimensional Tolerance

Dimensional Tolerance Standards

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

General tolerances for flanges according to EN 1092-1:2001

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