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- AUSTRALIAN FLANGE
AS/NZS 4331.1 Flange
STEEL BACKING FLANGES AS/NZS4331.1(ISO 7005-1)
Nominal Pipe OD
Flange Size
OD
ID
Minimum Thickness
PCD
Bolt Hole No. x Dia.
Bolt Size
20
15
Refer Table 5
25
20
32
25
40
32
50
40
63
50
75
65
90
80
110
100
125
100
140
125
160
150
180
150
200
200
340
235
24
295
8X22
M20
225
200
340
238
24
295
8X22
M20
250
250
395
288
26
350
12X22
M20
280
250
395
294
26
350
12X22
M20
315
300
445
338
28
400
12X22
M20
355
350
505
376
30
460
16X22
M20
400
400
565
430
32
515
16X26
M24
450
450
615
470
35
565
20X26
M24
450
500
670
517
38
620
20X26
M24
500
500
670
533
38
620
20X26
M24
560
600
780
618
42
725
20X29.5
M27
630
600
780
645
42
725
20X29.5
M27
710
700
895
740
-
840
24X29.5
M27
800
800
1015
843
-
950
24X32.5
M30
900
900
1115
947
-
1050
28X32.5
M30
1000
1000
1230
1050
-
1160
28X35.5
M33
As per ISO 9624: "The inside diameter of the loose backing flange shall conform to the design of the flange adaptor. In some applications, values of the inside diameter of the loose backing flange differing from those given in the tables may be used."
STEEL BACKING FLANGES AS/NZS4331.1(ISO7005-1)
|
Nominal Pipe OD |
Flange Size |
OD |
ID |
Minimum Thickness |
PCD |
Bolt Hole No. x Dia. |
Bolt Size |
|
20 |
15 |
95 |
28 |
14 |
65 |
4X14 |
M12 |
|
25 |
20 |
105 |
34 |
16 |
75 |
4X14 |
M12 |
|
32 |
25 |
115 |
42 |
16 |
85 |
4X14 |
M12 |
|
40 |
32 |
140 |
51 |
18 |
100 |
4X18 |
M16 |
|
50 |
40 |
150 |
62 |
18 |
110 |
4X18 |
M16 |
|
63 |
50 |
165 |
78 |
20 |
125 |
4X18 |
M16 |
|
75 |
65 |
185 |
92 |
20 |
145 |
8X18 |
M16 |
|
90 |
80 |
200 |
108 |
20 |
160 |
8X18 |
M16 |
|
110 |
100 |
220 |
128 |
22 |
180 |
8X18 |
M16 |
|
125 |
100 |
220 |
135 |
22 |
180 |
8X18 |
M16 |
|
140 |
125 |
250 |
158 |
22 |
210 |
8X18 |
M16 |
|
160 |
150 |
285 |
178 |
24 |
240 |
8X22 |
M20 |
|
180 |
150 |
285 |
188 |
24 |
240 |
8X22 |
M20 |
|
200 |
200 |
340 |
235 |
26 |
295 |
12X22 |
M20 |
|
225 |
200 |
340 |
238 |
26 |
295 |
12X22 |
M20 |
|
250 |
250 |
405 |
288 |
28 |
355 |
12X26 |
M24 |
|
280 |
250 |
405 |
294 |
28 |
355 |
12X26 |
M24 |
|
315 |
300 |
460 |
338 |
32 |
410 |
12X26 |
M24 |
|
355 |
350 |
520 |
376 |
35 |
470 |
16X26 |
M24 |
|
400 |
400 |
580 |
430 |
38 |
525 |
16X29.5 |
M27 |
|
450 |
450 |
640 |
470 |
42 |
585 |
20X29.5 |
M27 |
|
500 |
500 |
715 |
533 |
46 |
650 |
20X32.5 |
M30 |
|
560 |
600 |
840 |
618 |
52 |
770 |
20X35.5 |
M33 |
|
630 |
600 |
840 |
645 |
52 |
770 |
20X35.5 |
M33 |
|
710 |
700 |
910 |
740 |
- |
840 |
24X35.5 |
M33 |
|
800 |
800 |
1025 |
843 |
- |
950 |
24X39 |
M36 |
|
900 |
900 |
1125 |
947 |
- |
1050 |
28X39 |
M36 |
|
1000 |
1000 |
1255 |
1050 |
- |
1170 |
28X42 |
M39 |
As per ISO 9624: "The inside diameter of the loose backing flange shall conform to the design of the flange adaptor. In some applications, values of the inside diameter of the loose backing flange differing from those given in the tables may be used."
