Carry out visual inspecton of the finished finned tubes
FIN TUBES:
SA179 OD15.875mmXMWT1.524mmX6096mmL
FIN MAT: AL1060
at 10% random rate, the inspection contents are overall length, finned length, bare end length, middle bare tube length, fin tube out diameter, fin height, fin thickness, fin pitch, all measured values for dimension should be according to the drawing.
Details of dimension check shown as follows:
FIN TUBE DIMENSIONS INSPECTION | ||||
SAMPLING RATE | 10% | |||
INSPECTION ITEMS | SPECIFICATIONS | TOLERANCES | RESULTS | ACCEPTABLE |
OVERALL LENGTH | 6096mm | 0 mm~+5 mm | All within tolerance | Yes |
FINNED LENGTH | ~6045.2mm | N/A | All within tolerance | Yes |
BARE END A | 25.4mm | +5/-0 mm | All within tolerance | Yes |
BARE END B | 25.4 mm | +5/-0 mm | All within tolerance | Yes |
FIN TUBE OD | 38.1 mm | +/-1.0mm | All within tolerance | Yes |
FIN THICKNESS | ~0.4 mm | N/A | All within tolerance | Yes |
FIN PITCH | 2.54 | +/- 0.2 mm | All within tolerance | Yes |
END PREPARATION | Plain end | N/A | Plain end | Yes |
