Sell Weld Neck Flange

Description

A weld neck flange is a type of industrial flange designed to transfer stresses to the pipe to reduce high stress concentrations at the base of the flange. Compared with other types, weld neck flanges are known for their tapered hub and gentle transition from flange thickness to pipe wall thickness. They are deformation-resistant, and are normally used for high pressure, high or low temperature conditions.

Size
Weld neck flange: 3/8"～**0"
DN*0～DN***0

Pressure
American Series: CLASS **0, CLASS **0, CLASS **0, CLASS **0, CLASS **0, CLASS ***0, CLASS ***0
European Series: PN 2.5, PN 6, PN *0, PN *6, PN *5, PN *0, PN *3, PN **0, PN **0, PN **0, PN **0, PN **0
 

Flange Facing Types
American Series: Flat Face(FF), Raised Face(RF), Tongue(T), Groove(G), Female(F), Male(M), Ring Joints Face(RJ)
European Series: Type A(Flat Face), Type B(Raised Face), Type C(Tongue), Type D(Groove), Type E(Spigot), Type F(Recess), Type G(O-Ring Spigot), Type H (O-Ring Groove)

Materials
Carbon steel: A**5
Alloy steel: A**2 F *-F *-F *-F *-F **-F **-F **-F ***-F ***-F **-F **-F **-F *2
Stainless steel: A**2 ******4H***4L***4N***4LN ******6H***6L***6N***6LN ******1H ******7H
Low temperature steel: A**2 A**7 Grade L *-L *-L *-L *-L *-L *-L *-L 8
High performance steel: A**4 F **-F **-F **-F **-F **-F **-F **-F **-F *0
 

Standards
GB/T********0
GB/T***5.*****0 GB/T***5.*****0 GB/T***5.*****0 GB/T***5.*****0
GB/T********0
GB/T*********2
SH/T********6
GD***0 GD******1
JB/T******4
JB/T******4
JB/T*2.*****4 JB/T*2.*****4 JB/T*2.*****4 JB/T*2.*****4
HG/T*********9 HG/T*********9
HG/T*********9 HG/T*********9 HG/T*********9
ASME B*6.*****9 ASME B*6.******6
API*******8
MSS SP ******6
CSA Z**5.*********5
EN**********7 EN**********4
DIN***0 DIN***1 DIN***2 DIN***3 DIN***4 DIN***5 DIN***6 DIN***7 DIN***8
BS*****3.*****9 BS*****3.*****9
AFNOR NF E************7
ISO**********2
AS********0
JIS B********4