Document zd6bo8waJMEGyd37ZQ4jkE4KB

Johns-Manoille Corporation Insulating Materials Space limitations do not permit .the insertion of complete efficiency tables, pipe sizes, insulation thick* ness, etc. If you do not find the size you want, write to the nearest Johns-ManvUle Division sales office. JOHNS-MANVILLE 85% MAGNESIA INSULATION An efficient insulation for steam lines to 600 deg. fahr. EFFICIENCIES laches Nominal Insulation Thickness Inches Temperature Difference Between Pipe and Surrounding Air. Deg. Fahr. 100 200 300 400" 500 Temperature of Pipe/Deg. Fahr. (Temperature of Surrounding Air. 75 Deg.) 175* 275* 375* 475* 575 Heat losses per linear foot of bare pipe pa* hour and Efficiencies of insulation 1 .0 . Std. 2 3 20 Std. 2 3 30 Std. 2 3 40 Std. 2 3 60 Std. 2 3 80 . Std. 2 3 Fist Surface 0 I '2 3 Bare Pipe Loss. B.t-u... Efficiency ............ %................. %................. ' Bare Pipe Loss. B.t.u... Efficiency ............ : %................. %................. Bare Pipe Loss, B.t.u... Efficiency %.:............. %................. Bare Pipe Loss. B.t.u... Efficiency %................. 4" ........ ................. Bare Pipe Loss. B.t.u... Efficiency %................. * %................. ........... Bare Pipe Loss. B.t-u... Efficiency' ___ . ............... %................. (Bare Surface) B.t.u.... Efficiency %.------------- * %............. %........................ 74.0 69.09 78.15 81.55 133.9 76.49 83.41 86.25 197.3 78.70 85.35 88.29 253.5 80.90 '86.50 69.30 371.9 82.24 87.68 90.50 485.7 84.05 88.39 91.16 215.2 84.16 91.31 94.01 183.4 74.04 81.76. 84.65 331.5 80.27 86.19 88.51 488.8 82.10 87.77 90:25 627.983.99 88.71 91.15 923.7 85.01 89.75 92.11 1203.0 86.60 90.32 92.65 533.0 86.50 92.61 94.90 337.4 77.90 84.63 87:05 608.3 63.22 88:36 90.33 8%.8 84.75 - 89.66 91.78 1152.1 86.36 90.46 92.52 1694.9 87.26 91.35 93.35 2207.3 88.60 91.81 93.60 978.0 88.37 93.61 95.58 555.2 81.43 87.19 89.21 1003.9 85.92 90.31 91.94 1480.0 87.19 90.37 93.16 1901.3 88.55 92.03 93.75 2797.1 . 89.29 92.76 94.45 3642.8 90.41 93.16 94.84 1614.0 90.11 94.55 96:23 846.2 84.15 89.16 91.87 1530.1 88.01 91.77 93.19 2255.8 89.09 92.70 94.21 2897.09 90.26 93.28 94.71 4265.6 90.87 93.87 95.30 5552.2 91.85 94.19 95.64 2460.0 91.46 95.29 96.75 JOHNS-MANVILLE ASBESTO-SPONGE FELTED INSULATION For insulating high pressure and superheated steam lines to 700 deg. fahr. EFFICIENCIES Pjpe Size Inches Nominal Insulation Thickness Inches - Temperature Difference Between Pipe and Surrounding Air. Deg. Fahr. 100* 200. 300" 400 $00" Temperature of Pipe. Deg: Fahr. (Temperature of Surrounding Air, 75 Deg.) 175" . 275" 375" 475" 575" Heat-losses per linear foot of bare pipe per hour and Efficiencies of insulation 1 0 Bare Pipe Loss. B.t.u... 74.0 183.4 337.4 555.2 846.2 | Efficiency %................. 75.66 79.15 61.95 84.55 86.62 2 ' %................. 80.23 83.60 85.84 87.90 89.53 3 * %........... 83.75 86.11 88.00 89.76 91.16 2 0 Bare Pipe Loss. B.t.u... 133.9 331.5 608.3 1003.9 1530.1 1 Efficiency %................. 80.16 2 %................. 85.09 3 %......... 87.87 83.00 87.26 89.64 85.28 89.02 91.04 87.41 90.64 92.34 89.07 ' 91.90 93.36 3 0 Bare Pipe Loss, B.t.u... 197.3 488.8 896.8 1480.0 2255.8 1 Efficiency %................. 82.20 84.76 86.80 .88.75 90.26 2 87:00 '88.90- 90.40 91.80 92.90 3 89.64 91.14 92.36 93.48 94.35 4 6 8 Flat Surface 0 Bare Pipe' Loss. B.t.u... 253.5 1 Efficiency %................. 83.24 2 * %................. 87.96 3 " %................. . 90.56 0 Bare Pipe Loss. B.t.u... 371.9 1 Efficiency %............. 84.35 2 %................. 89.08 3 %........... 91.60 0 Bare Pipe Loss, B.t.u.,. 485.7 1 Efficiency %................. 84.95 2 * - %............. 89.64 3 %............... : . .92.16 0 (Bare Surface) B.t.u..-.. 215.2 1 Efficiency %................. 84.16 2 %................. 91,31 3 %................. 94.01 627.9 85.60 89.71 91.94 923.7 86.55 90.66 92.84 1203.0 87.10 91.14 93.32 533.0 86.50 92.61 94.90 1152.1 .. 87.55 91.10 93.04 1901.3 89.35 92.42 94.06 1694.9 88.37 91.93 93.84 2797.1 90.06 93.14 94.72 2207.3 3642.8 88.84 . - 90.44 92.36 93.48 94.24 95.07 978.0 1614.0 88.37 93.61 95.58, 90.11 94.55 96.23 2697.09 90.75 93.44 94.84 4265.6 91.38 94.07 95.41 5552.2 91.69 94.35 95.71 2460.0 91.46 95.29 96.75 Johns-Manoille Corporation Insulating Materials JOHNS-MANVILLE IMPROVED ASBESTOCEL INSULATION For insulating pipes conveying hot water or steam at medium and low pressure. EFFICIENCIES Pipe Sizes Ply Inches Temperature Difference Between Pipe and Surrounding Air. Deg. Fahr. 100" 150" 200" 250". 300" Temperature of Pipe, Deg. Fahr. (Temperature of Surrounding Air. 75 Deg.) 175" 225" 275" 325" 375"^ Heat losses per linear foot of hare pipe per hour and efficiencies of insulation 1 Bare Pipe Loss. B.t-u....... 74.0 2-ply Efficiency %.................... 57.81 My 4-ply * %.................... %.................... 62.86 . 66.35 123.8 59.80 64.83 68.12 163.4 61.58 66.60 69.72 253.7 63.23 68.22 71.20 337.4 64.77 69.69 72.58 2 Bare Pipe Loss. B.t.u..... 2-p|y Efficiency %............... 3-ply . %.................... 4-ply * %.................... 133.9 64.49 69.71 . 73.04 223.9 . 66.12 71.25 74.45 331.5 67.58 72.64 75.72 458.7 68.89 73.93 76.89 608.3 70.10 75.12 78.00 3 Bare Pipe Loss. B.t.u....... 2-ply Efficiency %\.................. 3-ply %........... 4-ply %......... :......... 197.3 67.19 72.62 75.92 330.1 68.67 74.03 77.17 488.8 69.99 75.28 78.31 676.3 71.20 76.38 79.37 896.8 72.33 77.39 80.33 4 Bare Pipe Loss, B.t.u....... 2-ply 3-plv 4-ply %.................... * %.................... 253.5 68.62 73.96 77.41 424.2 70.03 75.29 78.54 627.9 71.29 76.47 79.58 868.8 72.42 77.57 80.55 1152.1 78.58 . 81.47 6 Bare Pipe Loss, B.t.u....... 2-ply EfficUncy %........... ......... 3-ply * %.................... 4-ply %.................... 371.9 70.02 75.59 79.03 623.9 71.38 . 76.83 80.12 923.7. 72.57 77.93 81.08 1278.1 73.68 78.96 81.97 1694.9 74.66 79.87 82.82 8 Bare Pipe Loss, B.Lu..'... 2-ply Efficiency %.................... Mv * %.................... 4-ply %.................... 485.7 70.96 76.39 79.83 812.5 72.20 77.58 80.87 1203.0 73.32 78.64 81.60 1664.5 74.35 79.63 82.65 2207.3 75.31 . 80.52 83.47 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--JohnsManville 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 irregular ity 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 under- ground 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. 683