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Cork insulation; a complete illustrated textbook on cork insulation ...

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502 CORK INSULATION<br />

CORK PIPE COVERING SPECIFICATIONS.<br />

Brine and Amm<strong>on</strong>ia Lines Operating Between 0° and 25° F.—<br />

Cover all brine and amm<strong>on</strong>ia lines operating at from 0° to 25° F.,<br />

after they have been tested, cleaned and approved, with Brine Thick-<br />

ness <strong>cork</strong> pipe covering having a mineral rubber finish ir<strong>on</strong>ed <strong>on</strong> at<br />

the factory.<br />

Use secti<strong>on</strong>al covering <strong>on</strong> all pipe lines up to and including 8-inch<br />

nominal pipe size. On all larger sizes use segmental covering,<br />

beveled to the proper radius. Cement all joints with waterproof<br />

cement, all end joints being broken by making <strong>on</strong>e-half of the first<br />

secti<strong>on</strong> 18 inches l<strong>on</strong>g and the other half the full length of 36 inches.<br />

Place all l<strong>on</strong>gitudinal joints <strong>on</strong> top and bottom. Wire the covering<br />

in place with copper clad steel wire, applying not less than six wires<br />

per secti<strong>on</strong> or its equivalent of three feet. Draw wires up tight all<br />

around the covering and not just at the point of twist.<br />

FIG. 221.—METHOD OF APPLYING SECTIONAL CORK PIPE COVERING 'lu<br />

BREAK END JOINTS.<br />

Use <strong>cork</strong> fitting jackets <strong>on</strong> all screwed fittings up to and including<br />

6-inch, and <strong>on</strong> all flanged fittings up to and including 6-inch. On<br />

all larger sizes use <strong>cork</strong> segments, beveled to the proper radius.<br />

Cement all joints with waterproof cement and wire securely with<br />

copper clad steel wire, applying not less than six wires per fitting.<br />

Fill all spaces between the <strong>cork</strong> jackets and/or the <strong>cork</strong> segments<br />

with brine putty, so applied as to leave no void spaces whatever<br />

behind the <str<strong>on</strong>g>insulati<strong>on</strong></str<strong>on</strong>g>.<br />

After the <str<strong>on</strong>g>insulati<strong>on</strong></str<strong>on</strong>g> is thus applied, fill all seams and broken edges<br />

with seam filler so as to leave a smooth, workmanlike surface.<br />

Paint the entire exposed surfaces of the <str<strong>on</strong>g>insulati<strong>on</strong></str<strong>on</strong>g> with <strong>on</strong>e good<br />

coat of asphaltic paint, or finish as otherwise specified.<br />

Carry all insulated lines <strong>on</strong> hangers fitted to the outside of the<br />

covering, which shall be protected by a 6-inch wide sheet ir<strong>on</strong><br />

shield shaped to fit the covering and extending halfway up the<br />

sides of the covering.<br />

Brine and Amm<strong>on</strong>ia Lines Operating Below 0° F.—Note: Follow<br />

same specificati<strong>on</strong>s as given for Brine Thickness <strong>cork</strong> pipe covering,<br />

except:<br />

(a) Substitute Sl>ccia! Thick Brine for "Brine Thickness."<br />

(b) Use secti<strong>on</strong>al covering <strong>on</strong> all pipe lines up to and including<br />

6-inch nominal pipe size, and segmental covering <strong>on</strong> larger sizes.

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