GB/T 9115.1-2000 PN2.5 RF - Steel pipe welding neck flanges with flat face or raised face

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Company	Chinese Manufacturers
Description	GB/T 9115.1-2000 PN2.5 RF - Steel pipe welding neck flanges with flat face or raised face
Bill of material	Flanges DN400-PN2.5 RF GB/T 9115.1-2000
IDNR Ident number
DN dia. of nominal	400 400	mm
A outer dia. of steel tube;series I	406.4 406.4	mm
AII outer dia. of steel tube;series II	426 426	mm
DD outer dia. of flanges;DD=Capital d	540 540	mm
K dia. of newel	495 495	mm
L dia. of bolt	22 22	mm
N amount of bolt	16 16	mm
M bolt standard	M20 M20
D hermetic face	463 463	mm
F hermetic face	2 2	mm
C thickness of flanges	24 24	mm
H height of flanges	65 65	mm
NN neck of flanges;series I	438 438
NNII neck of flanges;series II	440 440	mm
S neck of flanges;when DN>600.S is confirm by user	6.3 6.3	mm
H1 neck of flanges	15 15	mm
R neck of flanges	10 10	mm

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