Space Flight Hardware

Adaptor Backing Flanges

Adaptor backing flanges are used to couple a glass end to the flange having different bolt configuration.  These flanges are made of cast iron and are supplied with inserts.

These are particularly used to fit a glass equipment on a non-glass equipment like glass-lined reactor etc.

Adaptor backing flanges are generally supplied undrilled.  However, if specified, these can be supplied drilled as per "Table E", "Table F" and "ASA150" standards.

Undrilling flanges
Cat. Ref. DN D D1 D2 L
CFA1
CFA1.5
CFA2
CFA3
CFA4
CFA6
CFA9
CFA12
25
40
50
80
100
150
225
300
115
150
165
200
220
285
395
445
43
58
70
101
134
186
260
342
51
66
81
112
148
196
282
363
10
10
12
12
12
15
15
18
Drilled to Table E
Cat. Ref. PCD n x dØ
CFA1/E
CFA1.5/E
CFA2/E
CFA3/E
CFA4/E
CFA6/E
CFA9/E
CFA12/E
82
98
114
146
178
235
324
406
4 x 12Ø
4 x 12Ø
4 x 16Ø
4 x 16Ø
8 x 16Ø
8 x 19Ø
12 x 19Ø
12 x 23Ø
Drilled to Table F
Cat. Ref. PCD n x dØ
CFA1/F
CFA1.5/F
CFA2/F
CFA3/F
CFA4/F
CFA6/F
CFA9/F
CFA12/F
87
105
127
165
190
260
356
438
4 x 16Ø
4 x 16Ø
4 x 16Ø
8 x 16Ø
8 x 16Ø
12 x 19Ø
12 x 23Ø
16 x 23Ø
Drilled to ASA 150
Cat. Ref. PCD n x dØ
CFA1/A
CFA1.5/A
CFA2/A
CFA3/A
CFA4/A
CFA6/A
CFA9/A
CFA12/A
79
98
121
152
190
241
298
432
4 x 12Ø
4 x 12Ø
4 x 16Ø
4 x 16Ø
8 x 16Ø
8 x 19Ø
8 x 19Ø
12 x 23Ø

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