Page 81 - Tube Tool Catalogue

Special Tables

Recommended Expansion of Tubes for Optimum Joint Strength in Heat Exchanger and Condensers
Tube O.D. Tube Expansion Tube O.D. Tube Expansion Tube O.D. Tube Expansion
Gauge Gauge Gauge
mm inch mm inch mm inch mm inch mm inch mm inch
12.7 1/2 14 .15 .006 15.8 5/8 20 .10 .004 25.4 1 10 .22 .009
12.7 1/2 15 .15 .006 15.8 5/8 21 .10 .004 25.4 1 11 .22 .009
12.7 1/2 16 .15 .006 19.0 3/4 10 .20 .008 25.4 1 12 .22 .009
12.7 1/2 17 .12 .005 19.0 3/4 11 .20 .008 25.4 1 13 .20 .008
12.7 1/2 18 .12 .005 19.0 3/4 12 .20 .008 25.4 1 14 .20 .008
12.7 1/2 19 .10 .004 19.0 3/4 13 .20 .008 25.4 1 15 .17 .007
12.7 1/2 20 .10 .004 19.0 3/4 14 .20 .008 25.4 1 16 .15 .006
12.7 1/2 21 .10 .004 19.0 3/4 15 .17 .007 25.4 1 17 .12 .005
15.8 5/8 12 .15 .006 19.0 3/4 16 .15 .006 25.4 1 18 .12 .005
15.8 5/8 13 .15 .006 19.0 3/4 17 .12 .005 31.7 1.1/4 8 .25 .010
15.8 5/8 14 .15 .006 19.0 3/4 18 .12 .005 31.7 1.1/4 10 .25 .010
15.8 5/8 15 .15 .006 19.0 3/4 19 .12 .005 31.7 1.1/4 12 .22 .009
15.8 5/8 16 .15 .006 19.0 3/4 20 .12 .005 31.7 1.1/4 14 .20 .008
15.8 5/8 17 .12 .005 19.0 3/4 21 .10 .004 31.7 1.1/4 16 .17 .007
15.8 5/8 18 .12 .005 25.4 1 8 .22 .009 31.7 1.1/4 18 .15 .006
15.8 5/8 19 .10 .004 25.4 1 9 .22 .009
Additional Sizes : 1/4 in. (6.3 mm) O.D. tube - expand all guages .003 in (.07 mm) after contact with tube sheet tube.
3/8 in. (9.5 mm) O.D. tube - expand all guages .004 in. (.10 mm) after contact with tube sheet hole.
EXAMPLE : 3/4 in. (19.0 mm) O.D. x 14 Guage Tubes: The above recommendation is
Recommended Expansion. . . . . . . . . . . . . . . . . . . . . . . . . . . .008 in. (.20 mm) based on our experience.
Tube Sheet Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .760 in. (19.3 mm) However, because of the great
variety of materials, tubes, and
Therefore, expand as follows:
tube sheets used, some
Tube I.D. before expanding . . . . . . . . . . . . . . . . . . . . . . . . . . .584 in. (14.8 mm)
conditions will require
Recommended Expansion. . . . . . . . . . . . . . . . . . . . . . . . . . . 0.008 in. (.20 mm)
experimental rolling to be certain
Clearance between Tube & that the rolled joints will be
Tube Sheet hole. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .010 in. (.25 mm)
satisfactory.
Finish I.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .602 in. (15.2 mm)
Tube Sizes - Birmingham Wire Gauges
Tube Birmingham Wire Gauge (Gauge - Inches)
O.D.
inch 00-.380 0-.340 1-.300 2-.284 3-.259 4-.238 5-.220 6-.203 7-.180 8-.165 9-148 10-.134 11-.120 12-.109 13-.095 14-.083 15-.072 16-.065 17-.058 18-.049 19-.042 20-.035 21-.032 22-.028 23-.025 24-.022
1/4 .152 .166 .180 .186 .194 .200 .206
3/8 .209 .231 .245 .259 .277 .291 .305 .311 .319 .325 .331
½ .310 .334 .356 .370 .384 .402 .416 .430 .436 .444 .450 .456
5/8 .407 .435 .459 .481 .495 .509 .527 .541 .555 .561 .569 .575 .581
3/4 .482 .510 .532 .560 .584 .606 .620 .634 .652 .666 .680 .686 .694 .700 .706
7/8 .607 .635 .657 .685 .709 .731 .745 .759 .777 .791 .805 .811 .819 .825 .831
1 .670 .704 .732 .760 .782 .810 .834 .856 .870 .884 .902 .916 .930 .936 .944 .950 .956
1.1/4 .920 .954 .982 1.010 1.032 1.060 1.084 1.106 1.120 1.134 1.152 1.166 1.180 1.186 1.194 1.200 1.206
1.1/2 1.170 1.204 1.232 1.260 1.282 1.310 1.334 1.356 1.370 1.384 1.402 1.416 1.430 1.436 1.444 1.450 1.456
1.3/4 1.310 1.344 1.390 1.420 1.454 1.482 1.510 1.532 1.560 1.584 1.606 1.620 1.634 1.652 1.666 1.680 1.686 1.694 1.700 1.706
2 1.524 1.560 1.594 1.640 1.670 1.704 1.732 1.760 1.782 1.810 1.834 1.856 1.870 1.884 1.902 1.916 1.930 1.935 1.944 1.950 1.956
2.1/4 1.490 1.570 1.650 1.682 1.732 1.774 1.810 1.844 1.890 1.920 1.954 1.982 2.010 2.032 2.060 2.084 2.106 2.210 2.134 2.151
2.1/2 1.740 1.820 1.900 1.932 1.982 2.024 2.050 2.094 2.140 2.170 2.204 2.232 2.260 2.282 2.310 2.334 2.356 2.370 2.384 2.402
2.3/4 1.990 2.070 2.150 2.182 2.232 2.274 2.310 2.344 2.390 2.420 2.454 2.842 2.510 2.532 2.560 2.584 2.606 2.620 2.634 2.652
3 2.240 2.320 2.400 2.432 2.482 2.524 2.560 2.594 2.640 2.570 2.704 2.732 2.760 2.782 2.810 2.834 2.856 2.870 2.884 2.902
3.1/4 2.490 2.570 2.650 2.682 2.732 2.774 2.810 2.844 2.890 2.920 2.854 2.982 3.010 3.032 3.060 3.084 3.105 3.120 3.134 3.151
3.1/2 2.740 2.820 2.900 2.932 2.982 3.024 3.060 3.094 3.140 3.170 3.204 3.232 3.260 3.282 3.310 3.334 3.356 3.370 3.384 3.401
3.3/4 2.990 3.070 3.150 3.182 3.232 3.274 3.310 3.344 3.390 3.420 3.454 3.482 3.510 3.532 3.560 3.584 3.606 3.620 3.634 3.652
4 3.240 3.320 3.400 3.432 3.482 3.524 3.560 3.594 3.640 3.670 3.704 3.732 3.760 3.782 3.810 3.834 3.856 3.870 3.884 3.902
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