Daikin R22, Руководство по проектированию трубопроводов для хладагента, Страница: 40 / 78

AG 31-011 • REFRIGERANT PIPING DESIGN 40 www.DaikinApplied.com
Appendix 2 – Refrigerant Piping Tables (English Units)
Table 4: Copper Tube Data
Nominal
Diameter
Type
Wall
Diameter
Diameter Surface Area Cross Section Weight
Working Pressure
ASTM B88 to 250°F
(inches)
Outside D,
(in .)
Inside D
(in .)
Outside
(ft²/ft)
Inside (ft²/
ft)
Metal Area
(in²)
Flow Area
(in²)
Tube (lb/ft) Annealed
(PSIG)
Drawn
(PSIG)
1/2
K 0.049 0.500 0.402 0.131 0.105 0.069 0.127 0.269 894 1676
L 0.035 0.500 0.430 0.131 0.113 0.051 0.145 0.198 638 1197
5/8
K 0.049 0.625 0.527 0.164 0.138 0.089 0.218 0.344 715 1341
L 0.040 0.625 0.545 0.164 0.143 0.074 0.233 0.285 584 1094
3/4
K 0.049 0.750 0.652 0.196 0.171 0.108 0.334 0.418 596 1117
L 0.042 0.750 0.666 0.196 0.174 0.093 0.348 0.362 511 958
7/8
K 0.065 0.875 0.745 0.229 0.195 0.165 0.436 0.641 677 1270
L 0.045 0.875 0.785 0.229 0.206 0.117 0.484 0.455 469 879
1-1/8
K 0.065 1.125 0.995 0.295 0.260 0.216 0.778 0.839 527 988
L 0.050 1.125 1.025 0.295 0.268 0.169 0.825 0.654 405 760
1-3/8
K 0.065 1.375 1.245 0.360 0.326 0.268 1.217 1.037 431 808
L 0.055 1.375 1.265 0.360 0.331 0.228 1.257 0.884 365 684
1-5/8
K 0.072 1.625 1.481 0.425 0.388 0.351 1.723 1.361 404 758
L 0.060 1.625 1.505 0.425 0.394 0.295 1.779 1.143 337 631
2-1/8
K 0.083 2.125 1.959 0.556 0.513 0.532 3.014 2.063 356 668
L 0.070 2.125 1.985 0.556 0.520 0.452 3.095 1.751 300 573
2-5/8
K 0.095 2.625 2.435 0.687 0.637 0.775 4.657 2.926 330 619
L 0.080 2.625 2.465 0.687 0.637 0.640 4.772 2.479 278 521
3-1/8
K 0.109 3.125 2.907 0.818 0.761 1.033 6.637 4.002 318 596
L 0.090 3.125 2.945 0.818 0.771 0.858 6.812 3.325 263 492
3-5/8
K 0.120 3.625 3.385 0.949 0.886 1.321 8.999 5.120 302 566
L 0.100 3.625 3.425 0.949 0.897 1.107 9.213 4.291 252 472
4-1/8
K 0.134 4.125 3.857 1.080 1.010 1.680 11.684 6.510 296 555
L 0.110 4.125 3.905 1.080 1.022 1.387 11.977 5.377 243 456
5-1/8
K 0.160 5.125 4.805 1.342 1.258 2.496 18.133 9.674 285 534
L 0.125 5.125 4.875 1.342 1.276 1.963 18.665 7.609 222 417
6-1/8
K 0.192 6.125 5.741 1.603 1.503 3.579 25.886 13.867 286 536
L 0.140 6.125 5.845 1.603 1.530 2.632 26.832 10.200 208 391
8-1/8
K 0.271 8.125 7.583 2.127 1.985 6.687 45.162 25.911 304 570
L 0.200 8.125 7.725 2.127 2.022 4.979 46.869 19.295 224 421
ASHRAE Handbook HVAC Systems And Equipment, Chapter 41, 2004.
© American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., www.ashrae.org .