Australian Flange Standards

Flange Table AS4087 PN21 - Balcombe
PN21FLANGE THICKNESSDRILLING DATAPN21
NOMINAL
PIPE
SIZE
FLANGE
OUTSIDE
DIAMETER
THICKNESS
OF
FLANGE
PITCH
CIRCLE
DIAMETER
BOLT
HOLE
DIAMETER
NUMBER
OF
BOLT
HOLES
NOMINAL
PIPE
SIZE
MMINCHODTPCDH#MMINCH
50216515127184502
652 1/218515146188652 1/2
80320515165188803
1004230191911881004
15063052426022121506
20083702432422122008
22594053035626122259
2501043030381261225010
3001249030438261630012
3501455030495301635014
3751558038521301637515
4001661038552302040016
4501867538610332045018
5002073548673332450020
6002485058781362460024
7002893558857362470028
75030101558940362875030
80032106068984362880032
900361185681105393290036
10004012757811943936100040
12004815308814414240120048

NOTES:

(1) Stocked flanges are generally supplied as flat face

(2) Raised face or "O" ring groove also available.

(3) Flanges may also be supplied in weld neck and bossed configuration. (hub dimensions as per AS2129)

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