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all necessary and proper piping to pipe the entire plant. From each boiler a branch pipe shall be carried to a main header located and from this header a branch pipe shall be carried to each engine; all branch pipes from boilers and to engines shall be provided with a valve so that any boiler or any engine may be cut out without interfering with the operation of the remainder. The valve in the engine branch shall be in addition to the throttle at the engine. The engine exhausts shall be connected to an exhaust header and each exhaust branch shall be provided with a valve; the exhaust header shall be connected with the heater and from the heater shall be carried. (For non-condensing engines carry to atmosphere; for condensing engines to the condenser.) The exhaust from the (condenser and) feed pumps shall be carried —. (For non-condensing engines carry to exhaust header or atmosphere; for condensing engines carry to the condenser or to an auxiliary

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218 Condensers.

heater.) Feed ( and condensing) water will be brought to by the purchaser). Drip (and condenser discharge) connections shall be made at -—————. All piping.

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and larger shall be flanged. (Add specification as to hot-well, exhaust head, back-pressure valve, automatic atmospheric relief valve, connections for auxiliary heater, etc., if required; also the disposal of drips from live steam pipes, separator, engine jackets, receiver, etc.)

All live steam piping and larger, (and also the following sections of exhaust piping -) shall be neatly covered with a substantial, non-heat-conducting pipe covering.

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independent steam driven }

surface condenser(s) complete with

pump(s) and

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{each} condenser to have a capacity of

pounds of steam condensed per hour

with condensing water at

degrees

Fahr.

Cent.

feed pump(s) of standard Pump(s) and

219. Feed Injector(s).

manufacture (each) having ample capacity to feed h. p. in boilers.

220. FeedWater Heater (s) and

feed-water heater(s) [and purifier(s)] of standard manufacture (each) Purifier(s). having ample capacity for-h. p. in boil

ers.

(Specify character of water to be used, and whether exhaust steam is to be used for any other purpose than heating feedwater.)

ure.

separator(s) of standard manufact- 221. Separa

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tor(s).

Board.

A gauge board of shall be erected 222. Gauge in and the following instruments

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mounted thereon:

Connections

shall be made between these instruments and in the following manner

223. Painting.

224. Renewal Parts

225. Summary.

(As required.)

Such renewal parts as it is advisable to have on hand shall be furnished, a list of same to be added hereto.

(See Note: p. 52, sec. 27.)

Each bidder shall fill out completely the following summary:

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