TABLE._Pumps and Hydraulics, Part 2 (of 2)

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in | of | to | to | to | to |of Bolt| of | of | of

+------+------+------+------+------+ | | +------

| A | B | C | D | E | | | | I

======+======+======+======+======+======+=======+=====+=====+======

1 |4-1/2 |2-1/2 |4-1/2 |4-1/2 |2-1/8 |3-1/4 | 4 | 1/2 |11/16

------+------+------+------+------+------+-------+-----+-----+------

1-1/4| 5 |2-3/4 |5-1/8 |5-1/4 |2-1/2 |3-3/4 | 4 | 1/2 | 3/4

------+------+------+------+------+------+-------+-----+-----+------

1-1/2| 6 |3-1/4 |5-7/8 | 6 |2-3/4 |4-1/2 | 4 | 5/8 |13/16

------+------+------+------+------+------+-------+-----+-----+------

2 |6-1/2 |3-3/4 | 7 |7-1/4 |3-3/8 | 5 | 4 | 5/8 | 7/8

------+------+------+------+------+------+-------+-----+-----+------

2-1/2|7-1/2 |4-1/4 |8-1/4 |8-5/8 | 4 |5-7/8 | 4 | 3/4 | 1

------+------+------+------+------+------+-------+-----+-----+------

3 |8-1/4 | 5 |9-1/2 | 10 |4-5/8 |6-5/8 | 8 | 5/8 | 1-1/8

------+------+------+------+------+------+-------+-----+-----+------

One cock of this pattern is usually employed, but to use two (as shown

in the figure) is the best practice especially for high steam service.

NOTE.—It will be easily understood that the B. O. is an abbreviation;

it stands for Bordo. The makers claim for the device that, 1, it will

not stick or jam, 2, it keeps it seat under pressure, 3, it has full

pipe area in ports, 4, it is easily adjusted to take up wear and, 5,

it opens and closes with a quarter turn and with a very short wrench.

PIPES, JOINTS

AND FITTINGS

[Illustration: FIGS. 641, 642.—See page 363.]