Flanges/Types of contact face

 
types of flanges DIN - DIN EN 1092 - 1

DIN
DIN EN 1092 - 1
blind flanges
DIN 2527
Typ Nr. 05
welding neck flanges DIN 2627 bis 2638
Typ Nr. 11

 

types of contact faces according to DIN 2526 - date march 1975 DIN EN 1092-1


Dichtfläche Ra in µm Rz in µm
Form A

contact face without special demand

Form A 3,2-12,5 12,5 - 50
Form B

contact face Rz = 160, turned (not finer as 40 μm)





Form C

contact face Rz = 160 (not finer as 40 μm)


Form B1
PN 2,5-PN 40
3,2-12,5 12,5-50
Form D

contact face Rz = 40, turned





Form E

contact face Rz = 16, turned


Form B2
PN 63+PN 100
0,8-3,2 3,2-12,5

Flanges with extra jointing

Form F

tongue (DIN 2512)

Form C

0,8 - 3,2


3,2-12,5

Form N

groove (DIN 2512)

Form D 0,8 - 3,2 3,2-12,5
Form V 13

projection (DIN 2513)

Form E 3,2 - 12,5 12,5-50
Form R 13

recess (DIN 2513)

Form F 3,2 - 12,5

12,5-50
Form R 14 for o-rings

recess (DIN 2514) for O-rings

 

Form G 0,8 - 3,2 3,2-12,5
Form V 14 for o-rings

projection (DIN 2514) for O-rings


Form H 0,8 - 3,2 3,2-12,5
Form L

recess for lens seal (DIN 2696)





Form M

slant for diaphragm seal (DIN 2695)





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