Page 8 - 2023 Straub Couplings
P. 8

 STRAUB-OPEN-FLEX-IL
Non-Axial-Restraint Pipe Coupling
For IPS Outside Diameter Pipe
Nominal IPS
Inches
11⁄ 2
2
21⁄ 2
3
4
5
6
Actual
In./mm
1.900 48.3 2.375 60.3 2.875 73.0 3.500 88.9 4.500 114.3 5.500 139.7 6.625 168.3
+/-
In./mm
1.85 - 1.95 46.9 - 49.5 2.32 - 2.42 58.9 - 61.4 2.81 - 2.93 71.3 - 74.4 3.44 - 3.56 87.3 - 90.4 4.43 - 4.57 112.5 - 116.0 5.45 - 5.57 138 - 141.5 6.54 - 6.71 166.1 - 170.4
PIPE OUTSIDE DIAMETER OD Range
Without Strip insert In./mm 0.2
5
0.2
5
0.2
5
0.2
5
0.2
5
0.2
5
0.2
5
With Strip insert In./mm 0.6
15
0.6
15
1.0
25
1.0
25
1.0
25
1.4
35
1.4
35
Approx. Weight Each Lbs./kg 1.1
0.5
1.3
0.6
1.76
.8
2.1
1.0
2.3
1.1
3.1
1.4
3.7
1.7
Other sizes available upon request.
X RC
STRAUB-FLEX & STRAUB-OPEN-FLEX COUPLING
Coupling Dimensions
OD
B DV
STRAUB-FLEX 2 & STRAUB-OPEN-FLEX 2 Dimensions
STRAUB-FLEX 3 & STRAUB-OPEN-FLEX 3 Dimensions
STRAUB-FLEX or STRAUB- OPEN-FLEX TYPE
COUPLING DIMENSIONS B C
ASSEMBLED DIMENSIONS DV
Maximum Distance Between Pipe Ends (Rmax.) Without With Strip insert
STRAUB-FLEX or STRAUB- OPEN-FLEX TYPE
3L 3LS 3LU 3H 3X
COUPLING DIMENSIONS B C In./mm In./mm 8.3 5.0 210 127 8.3 5.0 210 127 8.4 5.0 213.4 127 8.35 5.0 212 127 8.58 5.0 218 127
ASSEMBLED DIMENSIONS DV In./mm
OD+1.42 OD+36 OD+1.46 OD+37 OD+1.50 OD+38 OD+1.5 OD+38 OD+1.73 OD+44
Maximum Distance Between Pipe Ends (Rmax.) Without With Strip insert In./mm In./mm
0.59 2.36 15 60 0.59 2.36 15 60 0.59 2.36 15 60 0.59 2.36 15 60 0.59 2.36 15 60
In./mm In./mm In./mm
In./mm
0.39 10 0.39 10 0.39 10 0.39 10 0.39 10
In./mm
1.38 35 1.38 35 1.38 35 1.38 35 1.38 35
2L 5.4 3.6 138 91 2LS 5.5 3.6 140 91 2LU 5.5 3.6 141 91 2H 5.6 3.6 142 91 5.8 3.6 2XS
148 91
OD+.91 OD+23 OD+.95 OD+24 OD+.95 OD+24 OD+1.02 OD+26 OD+1.26 OD+32
STRAUB-FLEX 1L & STRAUB-OPEN-FLEX 1L COUPLING
• Open-Flex Meets AWWA C-230 & C-227
• Pipes must be properly anchored and supported.
• STRAUB-FLEX & STRAUB-OPEN-FLEX OD Couplings are NOT pull-out resistant.
• STRAUB-STRONG Special Restraint R System. (Info and pricing available on request.)
• OPEN-FLEX 1L in hinged style only • W2 or W5 for FLEX
STRAUB-FLEX 1L & STRAUB-OPEN-FLEX 1L
Working
COUPLING DIMENSIONS
ASSEMBLED DIMENSIONS Pressure
B
C
DV X psi/bar
In./mm
In./mm
In./mm In./mm 363
3.0
1.4
2.8 3.3 FLEX COUPLING
25 76 35
70 89
232 3.0 1.4
3.2 3.7 16.0 76 35
82 101
232 3.0 1.4
3.2 3.7 16.0 76 35
95 119
232 3.7 2.0
4.4 4.9 16.0 94 51
111 136
232 3.7 2.0
5.4 5.9 16.0 94 51
136 162
232 4.2 2.4
6.4 7.1 16.0 107 61
162 192
232 4.2 2.4
7.5 8.1 16.0 107 61
190 225
X
C
B DV
MAX. GAP PIPE ENDS (Rmax.)
W1, W2, or W5, See Page 4 for details.
W1, W2, or W5, See Page 4 for details.
OPEN-FLEX 2 not available in hinged style.
OPEN-FLEX 3 not available in hinged style.
2LV version in lean duplex available. Price on request only.
2LV version in lean duplex available. Price on request only.
All STRAUB couplings require correct use of a torque wrench for safe and proper installation. STRAUB couplings must be torqued to the specified value printed on each individual coupling. Failure to do so can result in injury or death.
WARNING: Cancer and Reproductive Harm Warning. For more information go to http://www.P65Warnings.ca.gov.
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