ASTM B163 kondansasyon ak chalè-echanjeur tib tolerans
Lè li rive chwazi tib ki dwat pou kondansateur ak echanjeur chalè, ASTM B163 se souvan estanda ale-a. Li mete espesifikasyon yo pou nikèl san pwoblèm ak nikèl alyaj kondansateur ak tib echanjeur chalè, asire pèfòmans serye ak lonjevite nan aplikasyon endistriyèl mande.
Nivo tolerans yo pouASME SB163 tibvarye selon gwosè yo ak epesè miray yo. Pa egzanp, tib ki gen yon dyamèt mwens pase {{0}}.5 pous gen yon tolerans +/-0.005 pous sou dyamèt deyò a. Pou dyamèt ant 0.5 ak 1.5 pous, tolerans la ogmante a +/-0.010 pous. Menm jan an tou, tolerans sou epesè miray ranpa soti nan +/-10% a +/-15%.
Tolerans sa yo ka sanble piti, men yo jwe yon wòl enpòtan nan pèfòmans yon kondansasyon oswa echanjeur chalè. Menm ti devyasyon ka deranje koule likid, enpak sou pousantaj transfè chalè, oswa konpwomi kapasite sele tib la. Se poutèt sa li enpòtan pou sous tib ki satisfè oswa depase kondisyon tolerans ASTM B163.
Varyasyon ki otorize ASTM B163 kondansateur ak tib echanjeur chalè
| Materyèl | Dyamèt deyò nominal pous (mm) |
Varyasyon ki otorize | |||||
| OD pous (mm) | Epesè mi % | ||||||
| Mwayèn mi | Minimòm miray | ||||||
| UNS N02200 UNS N02201UNS N04400 | 1/2(12.7) Mwens pase oswa egal a OD＜5/8(15.9) | +0.005(0.13) | 0 | +12.5 | -12.5 | +25 | 0 |
| 5/8(15.9) Mwens pase oswa egal a OD Mwens pase oswa egal a 1 1/2(38.1) | +0.005(0.13) | -0.005(0.13) | +10 | -10 | +20 | 0 | |
| 1 1/2(38.1)＜OD Mwens pase oswa egal a 3(76.2) | +0.01(0.25) | -0.01(0.25) | +10 | -10 | +22 | 0 | |
| UNS N06600 UNS N06601 UNS N06690 | 1/2(12.7) Mwens pase oswa egal a OD＜5/8(15.9) | +0.005(0.13) | -0.005(0.13) | +12.5 | -12.5 | +25 | 0 |
| UNS N06045 UNS N06025 UNS N06603 UNS N088000 | … | … | … | … | … | … | … |
| UNS N08810 UNS N08811 UNS N08801 | … | … | … | … | … | … | … |
| UNS N08825UNS N08120 | … | … | … | … | … | … | … |
| UNS N06686 | 5/8(15.9) Mwens pase oswa egal a OD Mwens pase oswa egal a 1 1/2(38.1) | +0.0075(0.19) | -0.0075(0.19) | +10 | -10 | +20 | 0 |
| 1 1/2(38.1)＜OD Mwens pase oswa egal a 3(76.2) | +0.01(0.25) | -0.01(0.25) | +10 | -10 | +22 | 0 | |
Varyasyon ki otorize pou ASTM B163 Ti Dyamèt ak Tib Mi limyè
Tablo 1
| Longè ft | Gwosè Tib nan. | Varyasyon ki otorize nan. | |
| Plis pase | Anba | ||
| Anba 1 | Jiska 1.250, incl | 1/32 | 0 |
| 1 a 4, enkli | Jiska 1.250, incl | 1/16 | 0 |
| Plis pase 4 a 10, incl | Jiska 1.250, incl | 3/32 | 0 |
| Plis pase 10 | Jiska 1.250, incl | 3/16 | 0 |
Tablo 2
| Longè ft | Gwosè Tib nan. | Varyasyon ki otorize nan. | |
| Plis pase | Anba | ||
| Anba 0.3 | Jiska 31.75, incl | 0.794 | 0 |
| 0.3 a 1.2, enkli | Jiska 31.75, incl | 1.59 | 0 |
| 1.2 a 3.0, enkli | Jiska 31.75, incl | 2.38 | 0 |
| Plis pase 3.0 | Jiska 31.75, incl | 4.76 | 0 |
Tablo 3
| Espesifye dyamèt deyò nan. |
Dyamèt deyò nan. | Dyamèt anndan an. | Epesè mi % | |||
| + | - | + | - | + | - | |
| Anba 3⁄32 | 0.002 | 0 | 0 | 0.002 | 10 | 10 |
| jiska 3⁄16 (0.1875), ekskl | 0.003 | 0 | 0 | 0.003 | 10 | 10 |
| 3⁄16 a 1⁄2 (0.500), san konte | 0.004 | 0 | 0 | 0.004 | 10 | 10 |
| 1⁄2 a 11⁄4 (1.250), enkli | 0.005 | 0 | 0 | 0.005 | 10 | 10 |
Tablo 4
| Espesifye dyamèt deyò mm |
Dyamèt deyò mm | Anndan dyamèt mm | Epesè mi % | |||
| + | - | + | - | + | - | |
| Anba 2.38 | 0.051 | 0 | 0 | 0.051 | 10 | 10 |
| 2.38 a 4.76, ekskl | 0.076 | 0 | 0 | 0.076 | 10 | 10 |
| 4.76 a 12.70, ekskl | 0.102 | 0 | 0 | 0.102 | 10 | 10 |
| 12.70 a 31.8, incl | 0.127 | 0 | 0 | 0.127 | 10 | 10 |
