207. Fittings. 208. Setting. shell(s) shall be made of steel having a tensile strength of not less than, and shall be tested to pounds hydrostatic pressure. Bidders shall state the guaranteed evaporation from feed water at to dry steam atpounds gauge pressure per rated horse-power, and per hour, and the amount of sumed. con {They shall be inspected and insured by a responsible steam boiler insurance company, this contractor to furnish a certificate of inspection and a policy of insurance for {Fach boiler shall be provided with the The S necessary lugs, brackets, plates, bolts, stays, anchor and binder rods, man and hand poles, steam and blow-off connections, stop and safety valves, pressure gauge, water column, gauge cocks and drip, set of stoking tools consisting of, and all other appliances properly coming under this head. The boiler(s) shall be set in masonry in a first-class manner, according to standard practice. This contractor to do all necessary excavating or filling for the foundation(s) and to remove all débris. The foundation(s) must be firm and substantial. All material shall be such as is especially adapted to the strains, stresses, and variations in temperature to which it will be subjected. 207. Fittings. 208. Setting. shell(s) shall be made of steel having a tensile strength of not less than, and shall be tested to pounds hydrostatic pressure. Bidders shall state the tion from feed water at guaranteed evapora to dry steam at pounds gauge pressure per rated horse-power, and per hour, and the amount of sumed. S They con shall be inspected and insured by a responsible steam boiler insurance company, this contractor to furnish a certificate of inspection and a policy of insurance for (Each) boiler shall be provided with the The necessary lugs, brackets, plates, bolts, stays, anchor and binder rods, man and hand poles, steam and blow-off connections, stop and safety valves, pressure gauge, water column, gauge cocks and drip, set of stoking tools consisting of, and all other appliances properly coming under this head. The boiler(s) shall be set in masonry in a first-class manner, according to standard practice. This contractor to do all necessary excavating or filling for the foundation(s) and to remove all débris. The foundation(s) must be firm and substantial. All material shall be such as is especially adapted to the strains, stresses, and variations in temperature to which it will be subjected. (Specify character of soil upon which boilers will be placed.) Connections Smoke connections of ——, having an area 209. Smoke are to be made with the stack, and are dampers and to be provided with cleaning doors arranged as follows: -—. (Note.-Specify material, height, capacity, 210. Stack. etc.) automatic stoker(s) of standard manu- 211. Automatic Stoker(s). facture connected--, and operated --. (Specify how coal is to be delivered to them.) feed pump(s) of standard manu facture (each) having a capacity of together with injector(s) as an auxiliary 212. Feed Pump(s) and Injector(s). source of supply. (Specify suction heads.) feed-water heater(s) [and purifier(s)] 213. FeedWater of standard manufacture (each) having a Heater(s) (and capacity of — heated from to (Specify character of water to be used, and whether exhaust steam is to be used for any other purpose than heating feed-water.) Purifier(s)). separator(s) of standard manufacture, 211. Separa having a capacity of, and a guaranteed efficiency of tor(s). (Note.-Specify kind of pipe to be used, 215. Piping. method of suspension, all distances, locations of pumps, separators, etc., headers required, 216. Gauge Board. 217. Pipe Covering. walls to be pierced, auxiliary connections, etc. It is sometimes very desirable, where a number of engines and boilers are installed. to place a valve in the main steam pipe both near the boilers and near the engines by either of which steam can be cut off from all engines at once; there should invariably be in addition to these valves a valve in each branch so that steam may be shut off from any boiler or any engine without interfering with the operation of the remainder.) From boiler(s) to engine(s); from engine(s) to heater(s), and from heater(s) to; from boiler(s) to pump(s) and injector(s); from pump(s) and injector(s) to (water supply), and from pump(s) to feed-water heater(s) and exhaust pipe; together with all check, globe, gate, angle, safety and other valves, traps, catch basins, drips, cocks, gauges, by-passes, and other devices necessary for the proper and convenient control and manipulation of the steam and water supply. Bends and elbows are to be avoided when possible. A gauge board of shall be erected in and the following instruments mounted thereon: Connection shall be made between these instruments and in the fol lowing manner All shall be carefully covered with a substantial, non-heat-conducting material, such as |