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Ch. 11: Pipes and Nozzles

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162                                  PIPES AND NOZZLES.
Riveting.—For ordinary pipe under light pressure a very common style is to have the seams single-riveted, the rivets (say 1/8 of an inch in diameter for an 11-inch pipe) being spaced 1 or l-1/4 inch apart on the longitudinal seams, and sometimes as much as 3 inches apart on the circular seams. Pipe thus put together becomes water­tight in use through the particles which naturally float in the water, or can be made so by throwing in a few bags of sawdust or shovelfuls of dirt, and will remain tight even when subjected to a pressure as great as 200 lbs. per square inch.
For heavy pressures and more careful construction the circular seams have a single row of rivets 1 inch apart, while the longitudinal seams are double-riveted, with rivets spaced 1 inch apart in two rows about 1/2 inch from each other.
Cold-riveting is common. In very particular work only is hot-riveting resorted to.
Ch. 11: Pipes and Nozzles Page of 331 Ch. 11: Pipes and Nozzles
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