Document 37JkbzzraQ0z3vo3M5No4XM4E

Air Filters Spray Engineering Company 60 High Street, Boston, Massachusetts Engineers and Manufacturers of Air Filters, Air Washers, Air Coolers, Spray Cooling Ponds, Nozzles, Strainers, Flow Meters, Lawn Sprinklers SPRACO AIR FILTERS Spraco Air Filters efficiently remove from the venti lating air, dust, dirt and other foreign matter. Their design incorporates decided improvement in both the automatic and the unit cell type air filter, which results in low air resistance combined with exceptionally high air cleaning efficiency. The filter media is arranged to give the greatest possible dust collecting surface within a given space and is comprised of diversiform expanded metal sheets and knitted copper mats. All parts are factory welded and exceptionally rugged. Spraco Automatic Air Filter--The Spraco Auto matic Air Filter is not only exceptionally efficient (the air being filtered twice due to the double-pass feature) but is absolutely self-cleaning. The design incorporates a number of removable filter boxes made up as an endless filter belt, a portion of which extends down into Spraco Filter Cell (Front View) a tank of "Dustix" Charging Solution. The dirt is settled out in this tank and removed, automatically by the sediment ejector. The M hp._motor which drives both the filter belt and sediment ejector operates for a period of only 10 to 20 minutes per day, consequently the power consumption is negligible. Spraco Auto matic Air Filters are furnished in single, two and three section units, to conform with the capacity required. Further Particulars on request. Spraco Cell Type Filters--(See Illustrations). The Spraco Cell Type Filters, which are in universal use, have very distinctive features, some of which are mentioned below. Although not self-cleaning, they are generally preferred, owing to their low first cost. Spraco Sectional Framework--The framework for holding the cells is made up in sections of all welded ' construction, to insure maximum strength and perfect alignment. The sectional framework also eliminates air leakage and reduces the cost of installation to a - minimum. Two-Point Seal--The cells make a two-point contact with the sectional framework which is provided with a felt sealing strip at the rear. All air must there fore pass through the filter media. Quick-acting spring latches, four to each cell hold the cell firmly against the Spraco Sectional Framework minimizes erection costs . two-point seal. Spraco Washing Tank---All Spraco Washing Tanks are equipped with steam water heater, overflow, drain, and-water connection.- They can be furnished with steam cleaning device and mechanical lift, which reduces the labor required to clean the cells to an absolute minimum. SEND FOR BULLETIN F-47 Specifications for Cell Type Filters Space occupied by Cell.... ................................................................................................ -.......................... 20 x 20 x 4 in. Standard air capacity of Cell... .................................................................................................... 800 c.f.m. Average'Resistance...,,........................ ........................... in. w.g. when clean }4 in. w.g. with 1 lb. dirt per cell Cleaning efficiency...... ......i...................Under normal conditions will remove 97 per cent of dust a nd dirt Net weight-of CelLTM........................ ;.......................................................................................................... ...............30 lbs. Net. weight of Sectional Framework....................................................................................................per Cell--15 lbs. Net weight of Washing Tank (Standard).................................................................................................... .....100 lbs. Net weight of Charging Tank........................ ............................ ........................................................................... 80 lbs. Net weight of Dustix.Charging Solution.................................... ............................. .............. per Gallon-- 8 lbs. Engineering Service The-Spray Engineering Company maintains a corps of engineers experienced in all phases of air con ditioning, including the filtering, washing, cooling, humidifying, and dehumidifying of air for all classes of work. These engineers are available for consultation regarding the best solution of such problems. 382 Boilers, Gas I . American Radiator Company | IDEAL GAS BOILERS Distributor : American Gas Products Corporation 376 Lafayette Street, New York Ideal Gas Boilers < for house>heating and industrial hot water supply A full line of specially designed gas boilers, completely equipped for automatic opera tion (steam, water or vapor), with all accessories and furnished with handsome Ideal insulated jackets. In use by leading gas companies; accepted as standard by architects, heating con tractors and engineers. Will heat any thing from a three-room cottage to the largest building. 1 4 1S ' ^ RATINGS dimensions Boiler No.' I-G-4 l-G-5 l-G-6 .l-G-7 I-Ct8 l-G-9 1-C-IO I--G--11 l-G-13 l--G--15 4-G-6 4-G-7 4-C-8 4-G-9 4-G-10 +-C-I1. 4-G-12 4-G-I4 4-G-I6 4-C-I8 4-G-20 4-C-22 4-G-24 Steam Boilers Water Boilers A.G.A. Available. Hp. !a.c.a. Available Rating B.t.u. Rating Rating B.Lu. 525 700 875 1050 1225 1400 1575 1750 2100 2450 126,000 168,000 210,000 252.000 294.000 336.000 378.000 420.000 504.000 588.000 3.8 5.0 1 6.3 7.5 8.8 10.0 11.3 12.5 1 15.0 17.5 900 135.000 1200 180.000 1500 225.000 .1800 270.000 2100 315.000 2400 360.000 2700 405.000 3000 450.000 3600 540,000 4200 630.000 2000 2400 2800 3200 3600 4000 4400 480.000 576.000 672.000 768.000 864.000 . 960,000 1.056.000 14.3 17.2 20.0 22.9 25.8 28.6 31.5 3250 3900 4550 5200 5850 6500 7150 487.500 585.000 682.500 780.000 877.500 975.000 1,072,500 4800 5600. 6400 7200 8000 8800 1.152.000 1.344.000 1.536.000 1.728.000 1.920.000 2.112.000 34.4 40.0 45.8 51.6 57.2 63.0 7600 1,170,000, 9100 1.365.000 10,400 1.560.000 11,700 1.755.000 13,000 1.950.000 14,300 2.145.000 No. of Burners 3 4 5 6 7 8 9 10 12 14 .5 6 7 8 .9 10 11 12 44 16 18 20 : 22 Width Inches No. and Height Size of Flue Includ Connec. ing Di Diameter verters Inches Inches 181/z 22'/, 26'/, 30'/2 i34'/, 621/z 1-6 1-7 1^8 1-8 1-8 1-9 1-9 1-10 1-11 1-12 52'/2 52'/, 53'/, si54'/, 583/, 60'/, 61'/2 27 1-11 69 31 1-11 '/, 35 1-12 39 1-12 43 1-13 73 47 1-14 731/2 51 1-14 74'/, 61 2-11 69'/, : 7r*69 2-12 77 2-12 85 2-13 73 93 2-14 73'/, 101 2-14 74'/, . No. and Size of Tappings Supply Return Inches Inches 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2M 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 1-6 2-5 1-6 2-5 1-6 2-5 1-6 2-5 1-6 2-5 1-6 2-5 1-6 2-5 2-6 2-5 2-6 2-5 2-6 2-5 2-6 2-5 2-6 2-5 2-6 2-5 SfratinfSl,hi^!00rdig 40 the BPedficatio"3 contained in the Code of the American Go, Auociation for -u- g4Mr>utAi LAfUCIO. Ideal Gas Boilers will deliver 240 B.t.u. per hour per sq. ft. of STEAM rating and 150 B.t.u. per-hour per sq. ft of WATER rating at boiler outlets. Pop Safety Valves conform in sise to the requirements'of the Code of the American Society of Mechanical Engineers. 383