Common pressure unit conversion formula yevharuvhu: 1bar=0.1MPa=1KG=14.5PSI=1kgf/m2
Nominal pressure (PN) uye Class American standard pound (Lb) ese ari maviri matauriro ekumanikidza.Musiyano ndewekuti kudzvanywa kwavanomiririra kunoenderana nemhando dzakasiyana dzetembiricha.PN European system inoreva kumanikidza kunoenderana pa120 ℃, nepo Class American standard ichireva kunoenderana kumanikidza ku425.5 ℃.
Naizvozvo, mukutsinhana kweinjiniya, kushandurwa kwekumanikidza hakugone kungoitwa chete.Semuyenzaniso, kushandurwa kwekumanikidza kweCLAss300 # kunofanirwa kunge kuri 2.1MPa, asi kana tembiricha yekushandisa ikatariswa, dzvinyiriro inowirirana inokwira, iyo yakaenzana ne5.0MPa zvichienderana nekupisa uye kudzvanywa bvunzo yechinhu.
Kune mhando mbiri dzemavharuvhu masisitimu: imwe ndeye "nominal pressure" system inomiririrwa neGermany (kusanganisira China) uye zvichibva pane inobvumirwa kushanda kumanikidza pane yakajairika tembiricha (100 ° C muChina uye 120 ° C muGermany).Imwe ndeye "temperature pressure system" inomiririrwa neUnited States uye inobvumirwa kushanda kumanikidza pane imwe tembiricha.
Mune tembiricha uye kudzvinyirira system yeUnited States, kunze kwe150Lb, iyo yakavakirwa pa260 ° C, mamwe mazinga anobva pa454 ° C. Kushushikana kunobvumirwa kweNo. 25 carbon steel valve ye150lb (150PSI = 1MPa) pa260. ℃ ndeye 1MPa, uye kushushikana kunobvumidzwa patembiricha yakajairika yakakura kupfuura 1MPa, ingangoita 2.0MPa.
Naizvozvo, kazhinji kutaura, kirasi yezita rekumanikidza inoenderana neAmerican standard 150Lb i2.0MPa, uye yezita rekumanikidza kirasi inoenderana ne300Lb ndeye 5.0MPa, zvichingodaro. shanduko formula.
Mukuwedzera, mumitemo yeJapan, kune "K" giredhi system, yakadai se10K, 20K, 30K, nezvimwewo. Pfungwa yeiyi yekumanikidza giredhi system yakafanana neyeBritish pressure giredhi system, asi chiyero chekuyera iyo metric system.
Nekuti tembiricha yereferensi yezita rekumanikidza uye kirasi yekumanikidza zvakasiyana, hapana kunyorerana kwakasimba pakati pavo.Ona Tafura yetsamba yekufungidzira pakati pevatatu.
Tafura yekuenzanisa yekushandurwa kwemapaundi (Lb) uye chiyero cheJapan (K) uye zita rekumanikidza (reference)
Lb - K - nominal pressure (MPa)
150Lb——10K——2.0MPa
300Lb——20K——5.0MPa
400Lb——30K——6.8MPa
600Lb——45K——10.0MPa
900Lb——65K——15.0MPa
1500Lb——110K——25.0MPa
2500Lb——180K——42.0MPa
2500Lb——180K——42.0MPa
3500Lb——250K——56.0MPa
4500Lb——320K——76.0MPa
Tafura 1 Tafura yekuenzanisa pakati peCL uye zita rekumanikidza PN
| CL | 150 | 300 | 400 | 600 | 800 |
| Normal Pressure PN/MPa | 2.0 | 5.0 | 6.8 | 11.0 | 13.0 |
| CL | 900 | 1500 | 2500 | 3500 | 4500 |
| Normal Pressure PN/MPa | 15.0 | 26.0 | 42.0 | 56.0 | 76.0 |
Tafura 2 Tafura yekuenzanisa pakati pegiredhi "K" neCL
| CL | 150 | 300 | 400 | 600 | 900 | 1500 | 2000 | 2500 | 3500 | 4500 |
| K Giredhi | 10 | 20 | 30 | 45 | 65 | 110 | 140 | 180 | 250 | 320 |
Nguva yekutumira: Jul-26-2022
