Division 22 23 Ebook Page 62 Pipe and Mechanical Insulation Brochure

35 Thermal performance, ASTM C680 Operating Temperature, F ( C) Thickness 400 (204) 600 (316) 800 (427) 1,000 (538) in. (mm) HL ST HL ST HL ST HL ST TIW Type I-HP 1 (25) 109 182 241 275 435 394 699 533 2 (51) 61 143 136 201 249 281 409 379 3 (76) 43 126 95 171 174 230 287 305 4 (102) 32 116 73 153 133 201 221 262 5 (127) 27 110 59 141 108 182 179 233 6 (152) 22 106 49 133 91 168 151 213 7 (178) 19 102 43 126 79 157 130 198 8 (203) 17 99 38 121 69 150 114 186 TIW Type II-HP 1 (25) 81 160 167 225 289 306 453 404 2 (51) 45 128 92 167 159 219 251 282 3 (76) 31 115 63 145 109 183 173 229 4 (102) 23 107 48 131 84 162 132 198 5 (127) 19 109 39 123 68 148 106 180 6 (152) 16 99 33 117 57 139 89 167 The above table provides approximate heat loss values (HL), Btu/hr ft 2 , and Surface Temperatures (ST), F, for flat surfaces. Values are based on horizontal heat flow, vertical flat surface, 80 F ambient temperature, still air, weathered aluminum jacket. To convert heat loss values to W/m 2 , multiply values by 3.15. To convert surface temperatures, use the formula: C = (F-32)/1.8. Fiberglas TIW Insulation Thermal conductivity Mean Temperature F k* Mean Temperature C * TIW Type I-HP 75 0.26 25 0.037 100 0.28 50 0.040 200 0.38 100 0.055 300 0.52 150 0.075 400 0.68 200 0.098 500 0.86 250 0.124 600 1.06 300 0.156 TIW Type II-HP 75 0.22 25 0.032 100 0.23 50 0.033 200 0.28 100 0.040 300 0.35 150 0.050 400 0.43 200 0.062 500 0.53 250 0.076 600 0.64 300 0.092 Installation instructions 1. Can be installed directly on hot flat or curved surfaces. 2. Attach using welding pins or studs and finish with sheet metal or metal mesh and insulating cement, then canvassed and painted. 3. Pins with speed washers or studs and nuts should be installed on 16 (400mm) maximum spacing, not more than 4" from the edge of the insulation. 4. The sheet metal lagging is secured to the same fasteners. 5. Joints of sheet metal should be offset from the joints of the insulation. 6. Install to a maximum of 8.5 (Type I-HP) and 6 (Type II-HP) up to 1,000F 7. Double-layer constructions with staggered joints is recommended for temperatures over 400F

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