Page 15 - 2023 Straub Couplings

B
C
B = Width of pipe coupling - 8.26" | 210mm
DV Outside diameter of the coupling installed OD+11⁄2" | OD+38mm
C = Distance between sealing lips 5" | 127mm
R (maximum) Distance between pipe ends with strip insert 2" | 50mm
STRAUB AIR-FLEX
O.D.
Assembly
R
DV
STRAUB-AIR-FLEX Selection Chart
Components & Materials
W2
W5
Pipe O.D.
8.625
219.1
10.75
273
12.75
323.9
14
355.6
16
406.4
18
457.2
20
508
22
558.8
24
609.6
28
711.2
30
762
32
812.8
36
914.4
40
1016
44
1117.6
48
1219.2 52 1320.8 56 1422.4 60 1524 64 1625.6 68 1727.2 72 1828.8 76 1930.4 80 2032 84 2133.6
Clamping Range
8.5 - 8.7
216 - 222
10.6 - 10.9
270 - 276
12.6 - 12.9
321 - 327
13.9 - 14.1
352 - 358
15.9 - 16.1
403 - 409
17.9 - 18.1
454 - 460
19.8 - 20.2
504 - 512
21.9 - 22.1
555 - 562
23.9 - 24.1
606 - 613
27.8 - 28.1
707 - 715
29.8 - 30.2
758 - 766
31.9 - 32.2
809 - 817
35.8 - 36.1
910 - 918
39.8 - 40.2
1012 - 1020
43.8 - 44.2
1113 - 1122
47.8 - 48.2
1215 - 1224 51.8 - 52.2 1316 - 1325 55.8 - 56.2 1418 - 1427 59.8 - 60.2 1519 - 1529 63.8 - 64.2 1621 - 1631 67.8 - 68.2 1722 - 1732 71.8 - 72.2 1824 - 1834 75.8 - 76.2 1925 - 1935 79.8 - 80.2 2027 - 2037 83.8 - 84.2 2128 - 2138
Working Pressure
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4
20
1.4 20 1.4 20 1.4 20 1.4 20 1.4 20 1.4 20 1.4 20 1.4 20 1.4 20 1.4
Torque Rate
29.5
40
29.5
40
29.5
40
29.5
40
29.5
40
29.5
40
29.5
40
29.5
40
29.5
40
29.5
40
29.5
40
36.8
50
36.8
50
36.8
50
36.8
50
36.8
50 36.8 50 44.3 60 44.3 60 44.3 60 44.3 60 44.3 60 44.3 60 44.3 60 44.3 60
Casing
Bolts
AISI 316 L
AISI 4135
AISI 316 L
A4 - 80
In./mm
In./mm
psi/bar
ft lbf/Nm
Bars
AISI 12 L 14, galvanized
AISI 316 L
Single Piece Construction With 3 Bolts
Two Piece Construction Available on Request
Sealing sleeve EPDM
• Temp.: -4°F up to +248°F | -20°C up to +120°C • Medium: air service
Sealing sleeve FP M / FKM
• Temp.: -4°F up to +356°F | -20°C up to +180°C • TMedium: air service and/or ozone
• Test Pressure = 1.5 times working pressure • Conductivity clips available on request
Two Piece Construction With 6 Bolts
High-Performance Pipe Couplings
15