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Chinese Manufacturers
Description
GB/T 9115.1-2000 PN50 RF - Steel pipe welding neck flanges with flat face or raised face
Bill of material
Flanges DN100-PN50 RF GB/T 9115.1-2000
IDNR
Ident number
DN
dia. of nominal
mm
A
outer dia. of steel tube
mm
DD
outer dia. of flanges;DD=Capital d
mm
K
dia. of newel
mm
L
dia. of bolt
mm
N
amount of bolt
mm
M
bolt standard
D
hermetic face
mm
F
hermetic face
2 mm
C
thickness of flanges
mm
H
height of flanges
mm
NN
neck of flanges
R
neck of flanges
mm
B
inner dia. of flanges;when DN>300 B is confirm by user
mm