Project Description
استانداردهای طراحی و تولید لولههای مسی شاخه بدون درز مخصوص استفاده در سامانههای تبرید و تهویه مطبوع (Air Conditioning & Refrigeration – ACR)
جدول زیر ابعاد و مشخصات فیزیکی لولههای مسی شاخه بدون درز جهت تولید و نصب سیستمهای تهویه مطبوع تبرید مطابق با استادندار ASTM B22-19 را نشان میهد.
| Standard Dimensions and Weights, and Tolerances in Diameter and Wall Thickness for Straight Length | |||||
| Tolerances Wall Thickness, Plus and Minus, in. |
Tolerances AverageA Outside Diameter, Plus and Minus, in. |
Weight,
lb/ft |
Wall Thickness,
in. |
Outside Diameter, in. |
Standard Size, in. |
| (mm) | (mm) | (kg/m) | (mm) | (mm) | |
| 0.003 | 0.001 | 0.126 | 0.030 | 0.375 | 3⁄8 |
| (0.08) | (0.025) | (0.187) | (0.762) | (9.52) | |
| 0.004 | 0.001 | 0.198 | 0.035 | 0.500 | 1⁄2 |
| (0.10) | (0.025) | (0.295) | (0.889) | (12.7) | |
| 0.004 | 0.001 | 0.285 | 0.040 | 0.625 | 5⁄8 |
| (0.10) | (0.025) | (0.424) | (1.02) | (15.9) | |
| 0.004 | 0.001 | 0.362 | 0.042 | 0.750 | 3⁄4 |
| (0.10) | (0.025) | (0.539) | (1.07) | (19.1) | |
| 0.004 | 0.001 | 0.455 | 0.045 | 0.875 | 7⁄8 |
| (0.10) | (0.025) | (0.677) | (1.14) | (22.3) | |
| 0.004 | 0.0015 | 0.655 | 0.050 | 1.125 | 1.1⁄8 |
| (0.10) | (0.038) | (0.975) | (1.27) | (28.6) | |
| 0.006 | 0.0015 | 0.884 | 0.055 | 1.375 | 1.3⁄8 |
| (0.15) | (0.038) | (1.32) | (1.40) | (34.9) | |
| 0.006 | 0.002 | 1.14 | 0.060 | 1.625 | 1.5⁄8 |
| (0.15) | (0.051) | (1.70) | (1.52) | (41.3) | |
| 0.007 | 0.002 | 1.75 | 0.070 | 2.125 | 2.1⁄8 |
| (0.18) | (0.051) | (2.60) | (1.78) | (54.0) | |
| 0.008 | 0.002 | 2.48 | 0.080 | 2.625 | 2.5⁄8 |
| (0.20) | (0.051) | (3.69) | (2.03) | (66.7) | |
| 0.009 | 0.002 | 3.33 | 0.090 | 3.125 | 3.1⁄8 |
| (0.23) | (0.051) | (4.96) | (2.29) | (79.4) | |