Document 5DN3mv5o7ZVJXeEBrv9Zn45k4

Insulation, Underground Underground Steam Construction Co. 75 Pitts Street, Boston, Mass. PRODUCTS--Engineering and Contracting of Steam Line Installations. Underground Steam Conduits. USCCO PRE-CAST CONCRETE CONDUIT * This unit marks a long step forward in the economics and mechanics of laying under ground steam lines. Its Outstanding Features Are: Strength resulting from flat reinforced bell; from the longitudinal joints, and from the fact its sections are 4 feet long, reducing the usual - number of joints necessary. Shape which allows 12 per cent greater inside capacity than circular conduit 'of like diameter. This permits larger pipes in a given size conduit and more room for drainage, pipe supports and rolls. Ease of Installation resulting from the fact that all top and bottom halves mate. Bottoms may be laid for any distance, the piping installed and then the tops brought up and laid. This speeds up the work and protects idle halves from damage. They can ^e stored away from the job. Materials are high strength cement with suitable aggregate, amply reinforced with wire mesh. Pipe Supports sue of cast-iron and quickly installed. They may be placed anywhere in the conduit. The weight of the pipe holds them in place. Joints' may be of any standard accepted brand of jointing compound or they may be of standard Portland cement mortar. 1022 Meters, Steam Builders Iron Foundry 23 Codding Street Providence, R. I. Representatives In Principal Cities The CHRONOFLO METER for nearby or long distance measurement of flow, level, pressure, temperature, weight, or position. The SHUNT METER for steam, air and gas. The VENTURI METER for boiler feed water supply, and other main pipe lines. CHRONOFLO METERS AND CONTROLLERS "From hundreds of feet to hundreds of miles'' Chronoflo Meters--Mechanically measure flow, pressure, tem perature, or position in terms of time; electrically transmit this time duration equivalent of the quantity to any point--or points--nearby or miles away. There a Receiving Instrument mechanically indicates, records, or registers it. If desired, the same " impulse " maybe used to operate flow, pressure, temperature, weight, or position controllers. Regular A.C. current is used and accuracy is not affected by voltage variation. Suitable for nearby or long distance transmission over private wires or public telephone channels. Write for Bulletin 283. THE SHUNT METER A low priced, practical, mechanical, meter easily installed and accurate over a wide range. Regularly used by many District Heating Companies for measuring steam sold; also ordered and re-ordered by leading industrial plants to meter steam or air furnished tenants, departments, and processes. The illustration shows the complete meter. Installation consists simply of bolting to flanges in the flow line; no connecting pipe or electric wiring. A portion of the entering steam is deflected by an orifice through nozzles against the blades of a turbine located in the upper or shunt passageway. The speed of the turbine is kept low by a dampening fan on the vertical turbine shaft, at the bottom end of which is a magnetic drive to the totalizer dials. The meter is installed as a unit in 2, 3 and 4-in. lines; for larger capacities the installation is made in a by-pass around an orifice in the main line. Write for Bulletin 255 Shwii ~ 11 Steam Pressure Lbs per Sq In. Gauge Rated Capacity of Saturated Steam--Lbe. per Hour (Meter, with larger orifice) 2'Meter 3* Meter 4* Meter 6' Meter 8'Meter 10* Meter 12* Meter Low Pressure Meters Standard Meters Extra Heavy Meters 0 5 15 30 50 50 100 150 200 250 275 300 600 800 1200 1650 2000 2650 4150 5000 5700 6300 6600 6900 1.400 1,900 2,750 3.400 4,050 6,000 9,500 11.400 13,000 14.400 15,200 15,700 2,530 3,350 4,750 5,850 7,000 10,600 16,600 20,000 22,700 25,200 26.500 27.500 5,660 6,500 7,860 9,550 11,400 22,200 29.000 34,400 39.000 43,200 45;ooo 46,800 9,850 11,300 13,700 16,600 19,800 39.000 51.000 60,500 68,600 76.000 79.400 82,500 15,200 17.500 21,100 ' 25,600 30.500 60,500 79,200 94.000 107.000 118.000 123.000 128.000 19.000 21,800 26,300 31.900 38.000 ' 75,500 99.000 '1T7,000 133.000 148.000 154.000 160.000 Minimum Capacities equal one-tenth tabulated quantities. Many other smaller and intermediate capacities available. 1023