PL

Guide

Selection & Standards

Selection & Standards

We provide supporting materials for designers and maintenance departments: sealing material selection tables, o-ring tables, flat seal standards and pressure unit converters. Resources are updated continuously.

Materials
Pressure unit converter

The basic unit of pressure in the SI system is Pascal (1 Pa) = 1 N/m² = 1 kg/(m·s²). Enter a value and select the input and output unit.

¹Pressure – scalar value of force acting perpendicularly on a surface relative to the size of that surface (p = Fn/S). ²Technical atmosphere – pressure exerted by a kilogram-force per cm²; common symbols: kG, kp, kgf. ³Unit of average atmospheric pressure at sea level = 760 mmHg under standard conditions (g = 9.80665 m/s², T = 273.15 K = 0°C). ⁴Hydrostatic pressure: Ph = ρ·g·h (e.g. 1 m water column). ⁵Hydrostatic pressure of mercury column under standard conditions. The converter is for informational purposes; we do not guarantee full compliance with standards.

Sealing material selection table

Material symbolHardness °ShAMaterial nameOperating temperature range
NBR60, 70, 80, 90kauczuk nitrylowyod -30°C do +100°C
MVQ lub VMQ60, 70, 80kauczuk silikonowyod -50°C do +200°C
FPM lub FKM70, 80, 90kauczuk fluorowyod -20°C do +200°C
EPDM70, 80kauczuk etylenowo-propylenowyod -40°C do +140°C
CR60, 70kauczuk chloroprenowyod -40°C do +110°C

O-ring selection table

Groove dimensions for radial and axial installation; groove depth and b +0.2 [mm].

Radial o-ring installation

Axial o-ring installation

d [mm]Radial o-ring installationAxial o-ring installation
Groove depthGroove depthb +0.2Groove depthGroove depthb +0.2
10,80,751,350,71,50,3
1,51,21,1521,052,20,3
1,80*1,45*1,35*2,40*1,30*2,60*0,30*
21,651,552,71,452,850,3
2,52,11,953,351,93,550,3
2,65*2,25*2,05*3,60*2,00*3,80*0,30*
32,62,442,34,20,6
3,55*3,10*2,80*4,80*2,75*5,00*0,60*
3,73,2352,95,150,6
43,53,25,43,25,550,6
4,33,753,45,83,35,90,6
4,53,953,66,13,66,20,6
54,44,16,746,90,6
5,30*4,70*4,35*7,10*4,25*7,30*0,60*
5,54,854,57,44,57,51
65,34,98,14,98,21
6,55,755,358,75,458,91
7,00*6,15*5,80*9,50*5,70*9,70*1,00*
7,56,66,210,056,210,21
87,16,610,76,610,91
987,55127,512,21
108,98,3513,358,413,61
119,89,2514,79,314,91

*non-standard dimensions

Flat seal standards

Dimensions d1, d2 in mm. Source: ASME/ANSI B 16.5, DIN 2690, EN 1514-1/1997, PN-86/H-74374/02, PN-87/H-74364.

Standard flange gasket dimensions according to ASME/ANSI B 16.5

(DN)NPSd1 [mm]150300400600900
1,03 MPa2,07 MPa2,76 MPa4,13 MPa6,21 MPa
151/2″215454545464
203/4″275767676770
251″336773737379
321 1/4″527683838389
401 1/2″498695959599
502″60105111111111143
652 1/2″73124130130130165
803″89137149149149168
3 1/2″102162165162162
1004″114175181178194206
1255″141197216213241248
1506″168222251248267289
2008″219279308305321359
24010″273340362359400435
30012″324410422419457498
35014″356451486483492521
40016″406514540536565575
45018″457549597594613638
50020″508607654648683699
60024″610718775768790838

Standard flange gasket dimensions according to DIN 2690

DNd1 [mm]0,25 MPa0,60 MPa1 MPa1,6 MPa2,5 MPa4 MPa
101838454545
152243505050
202853606060
253563707070
324375828282
404985929292
506195107107107
6577115127127127
8090132142142142
100115152162162168
125141182192192195
150169207218218225
175195237248248255267
200220262273273285292
250274318328330342353
300325373378385402418
350368423438445458475
400420473490497515547
450470528540557565572
500520578595618625628
600620680695735730745
700720785810805830850
800820890915910940970
9009209901015101010401080
1000102010901120112511501190
12001220129013051340134013601395

Standard flange gasket dimensions according to EN 1514-1/1997

DNd1 [mm]PN 2,5PN 6PN 10PN 16PN 25PN 40PN 63d2 [mm]
10183939464646461856
15224444515151512161
20285454616161612572
25356464717171713082
32437676828282824188
404986869292929247103
5061969610710710710759113
607210610611711711711768123
657711611612712712712773138
808913213214214214214286148
100115152152162162168168110174
125141182182192192194194135210
150169207207218218224224163244
175185185277
200220262262273273284290210309
250273317317328329340352264364
300324373373378384400417314424
350356423423438444457474360486
400407473473489495514546415543
450458528528539555564571
500508578578594617624628
600610679679695734731747
700712784784810804833
800813890890917911942
900915990990101710111042
1000101610901090112411281154
11001120123112281254
1200122012901307134113421364

Standard flange gasket dimensions according to PN-86/H-74374/02, PN-87/H-74364

DNd1 [mm]0,250,6311,62,546,310d2 [mm]
10183939464646465656
15224444515151516161
20285454616161617272
25356464717171718282
32437676828282828888
4049868692929292103103
50619696107107107107113119
6072106106117117117117138144
6577116116127127127127148154
8089132132142142142142174180
100115152152162162168168210217
125141182182192192194194247258
150169207207218218224224277287
175190237237248248254265309324
200220262262273273284290334361
250273317317328329340352364391
300324373373378384400417424458
350356423423438444457474486512
400407473473489495514546543572
450458528528539555564571
500508578578594617624628657704
600610679679695734731747764813
700712784784810804833852879950
800813890890917911942974988
90091599099010171011104210841108
100010161090109011241128115411941220
120012201290130713411342136413981452

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