BOILER TUBES.
Fig. 113.
Fig. 114.
SURFACES AND CAPACITIES OF PIPES.
| Sizes of Pipes. | 1⁄2 in. | 3⁄4 in. | 1 in. | 11⁄4 in. | 11⁄2 in. | 2 in. |
|---|---|---|---|---|---|---|
1. Outside circumferences of pipes in inches | 2.652 | 3.299 | 4.136 | 5.215 | 5.969 | 7.461 |
2. Length of Pipe in feet to give a square foot of outside surface | 4.52 | 3.63 | 2.90 | 2.30 | 2.01 | 1.61 |
3. Number of square feet of outside surface in ten lineal feet of Pipe | 2.21 | 2.74 | 3.44 | 4.34 | 4.97 | 6.21 |
4. Cubic in. of internal capacity in ten lineal feet of pipe | 36.5 | 63.9 | 103.5 | 179.5 | 244.5 | 402.6 |
5. Weight in lbs. of water in ten lineal feet of pipe | 1.38 | 2.31 | 3.75 | 6.5 | 8.8 | 14.6 |
| Sizes of Pipes. | 21⁄2 in. | 3 in. | 31⁄2 in. | 4 in. | 41⁄2 in. | 5 in. |
1. Outside circumferences of pipes in inches | 9.932 | 10.99 | 12.56 | 14.13 | 15.70 | 17.47 |
2. Length of Pipe in feet to give a square foot of outside surface | 1.32 | 1.09 | .954 | .849 | .763 | .686 |
3. Number of square feet of outside surface in ten lineal feet of Pipe | 7.52 | 9.16 | 10.44 | 11.78 | 13.09 | 16.56 |
4. Cubic in. of internal capacity in ten lineal feet of pipe | 573.9 | 886.6 | 1186.4 | 1527.6 | 1912.6 | 2398.8 |
5. Weight in lbs. of water in ten lineal feet of pipe | 20.8 | 32.1 | 43.6 | 55.4 | 69.3 | 86.9 |
Pipe manufactured from double thick iron is called X-strong pipe, and pipe made double the thickness of X-strong is known as XX-strong pipe. Both X-strong and XX-strong pipe are furnished plain ends—no threads, unless specially ordered.