Document pBMnnB9wJo08M8dDJY3K2MMDB

Johns-Marwille Inc Insulating Materials JOHNS-MANVZLLE 85 PER CENT MAGNESIA INSULATION An efficient insulation* for steam lines to 600 deg. fahr. EFFICIENCIES________________________' Pipe 1 Nominal Size Insulation Thickness Inches Inches 1. 0 Std. 20 Std. 30 Std. 40 Std. 60 Std. 2 80 Std. 3 0 3 and SurroS$n8 ^ l%S;1,r' Temperature of Pipe, Deg. Fehr. (Temperature of Surrounding Air. 75 Dug.) 175 275 375 475 . Heat losses per linear foot of bare pipe per hour and Efficiencies of insulation Bare Pipe Loss. B.t.u.. %................... Bare Pipe Loss. B.Cu... * %................... Bare Pipe Loss. . " %................... Bare Pipe Loss, B.t.u... Bare Pipe Loss. B.t.u. . " %................... Bare Pipe Loss. B.t.u... " %................... (Bare Surface) B.t.u... " %............... 74.0 68.7 78.4 81.4 133.9 76.7 83.3 86.2 197.3 78,8 85.2 88.2 253 5 81.7 86.4 89.3 371.9 82.7 87.8 90.4 485.7 83.7 88.4 91.1 82.36 90.16 93.22 183.4 73.7 82.0 84.6 331-5 80.5 85.9 88.5 488.8 82.3 87.7 90.2 627.9 84.5 88.7 91.1 ' 923.7 85 4 89.8 92 1 . 1203.0 86.2 90.3 927 85.25 91.85 94.37 337.4 77.7 87.0 608.3 83.3 90.2 896.8 84.8 89.6 91.7 1152.1 86.9 90.5 92 4 1694.9 87.6 93.3 2207.3 88.4 93.1 87.60 93.12 95.25 81.1 . 87.3 1003.9 85.7 90.2 91.9 87.1 91.4 93.0 1901.3 89.1 92.1 . 2797.1 89.7 94.4 3642.8 90.2 93. 1614.0 89.64 96'06 84.0 89.5 90.9 88.2 91.7 . 93.3 89.3 92.9 94.2 90.8 93.4 94.8 91.3 94.0 95.3 91.9 94.3 95.6 2590.0 91.48 95.31 96.75 JOHNS-MANVILLE ASBESTO-SPONGE FELTED INSULATION For insulating high pressure and superheated steam lines to 750 deg. fahr. Pipe Size Inches. Nominal Insulation Thickness Inches 10 20 30 .4 0 1 60 8 0 1 3 EFFICIENCIES_____________. _______________ Temperature Difference Between Pipe and Surrounding Air Deg. Fahr. 100 200 500' f 400 500 Temperature of Pipe. Deg. Fahr. (Temperature of Surrounding Air. 75 Deg.) 175 275 575 475 575' Heat losses per linear foot of bare pipe per hour and E&ciencies of insulation Bare Pipe Loss. B.t.u.. " %................... Bare Pipe Loss, B.t.u.. - %................... Bare Pipe Loss, B.t.u... Bare Pipe Loss. B.t.u... of. Bare Pipe Loss, B.t.u... of, Bare Pipe Loss, B.t.u.. Efficiency %.................. - %................. *% 74.0 76.5 80.7 83.5 133.9 80.4 85.1 87.7 197.3 82.2 86.6 89.5 253.5 83.3 87.9 90.5 371.9 84.2 69.1 91.5 4857 84.8 89.6 92.1 215.2 84.17 91.32 94.02 183.4 79.9 83.6 86.1 331.5 83.3 87.2 89.6 . 488.8 84.9 88.8 91.2 x 627.9 85.6 89.7 92.0 ' 923.7 . 86.5 90.7 92.9 1203.0 87.0 91.2 93.4 533.0 . 86.50 92.61 94.90 337.4 82.605.6 608.3 85.5 896.8 86.6 1152.1 87.6 91.1 1694.9 88.3 2207.3 88.7`1 92.4 978.0 88.38 95.59 85.2 87.8 ` 89.8 1003.9 87.6 90.6 92.4 1480.0 88.6 93.5 1901.3 89.5 92.4 94 1 2797.1 90.1 93.1 3642.8 90.4 93 4 95.1 1614.0 *87.4' 90.0 91.5 16M .0 89.3 92.1 93.7 90.3 93.2 94.6 90.9 93.7 95.1 91.4 94.3 95.6 91.7 94.6 95.9 94.55 i ---- | 95.44 96 85 Johns-Manoille Inc. Insulating Materials JOHNS-MANVILLE STEAM TRAPS Type A (Cast Iron) The simplicity of the Johns-Manville Steam Trap practically eliminates all possibility of its getting out of order. It has and requires no adjustments, and consists of only three parts--the body, discharge bushing and rolling ball, the latter being the only part that moves. Trap No. Pipe Size Inches Capacity Pounds of Water per Hour Dimensions in Inches (See Diagram) A B C DE Weight Lbs. 2-A 3-A 4-A 5-A 6-A % 1 I'/s Wl 2 700 1000 1700 3500 6000 1% 6 PA 3% 6% 14% 8*4 */, 3V? 4V? 8 23 ijy.m /. 4'A >'/< 10% 12% SVS t'h 12V? 47 85 M'/t 13 6Va m 14% 126 Casl Iron Models JUNIOR MODEL (Bronze) For steam pressures to 50 lbs. V2 in. outlet and inlet pipe connections. Bushings for pressures from 1 to 10 lbs. and 10 to 50 lbs. Trap Junior Pipe Size. Inches Pressure Range Pounds Capacity. Pounds of water per Hour Vz 1-10 10-50 250 4'/ inches long by 3% inches high; weight, 2 pounds, 6 ozs. RADIATOR TRAPS (Bronze and Nickel Finishes) For steam pressures to 10 lbs.--on open (atmospheric) or vacuum return line heating systems. For use on cast iron heating radiators only. WEIGHTS Style Pipe Connection yf Standard 2 )b., 5oz. Straight way 2_lb., 3 oz. Corner* ' 2 lb., 4 oz. 21b.; 7 oz. 2 lb., 6 oz. JOHNS-MANVILLE UNDERGROUND SYSTEM OF INSULATION A specially salt glazed and highly vitrified tile conduit is used as a waterproof envelope to protect the insulation--Johns-Manville Asbesto-Sponge Conduit Filling, is packed around the piping to be insulated and completely fills the conduit. * The cast iron roll frame used is installed in a mortar or concrete bed and is set at the proper elevation from an overhead batter-board line. This method prevents uneven alignment of the pipes by irregularity in the manufacture of the conduit, etc. The insulation used to surround the pipe is made of asbestos fibre and material of a sponge-like nature, which when properly mixed with the asbestos, forms the most efficient and durable insulation for underground work. The underdrain laid with open joints carries away the water that rapidly filters away from the system through the broken stone or gravel in which the lower half of the system and the underdrain itself is laid. * Shutters for sealing the ends of the system, manhole and anchor pits are incidental but necessary, and are placed according to conditions and requirements as recommended by our engineers. * 411