Iyunithi yoxinzelelo eqhelekileyo yokuguqula ifomula yevalvu: 1bar=0.1MPa=1KG=14.5PSI=1kgf/m2
Uxinzelelo lwegama (PN) kunye neClass American pound standard (Lb) zombini zizibonakaliso zoxinzelelo.Umahluko kukuba uxinzelelo abalumeleyo luhambelana namaqondo okushisa ahlukeneyo.Inkqubo ye-PN yaseYurophu ibhekisela kuxinzelelo oluhambelanayo kwi-120 ℃, ngelixa i-Class American standard ibhekisela kuxinzelelo oluhambelanayo kwi-425.5 ℃.
Ke ngoko, kutshintshiselwano lobunjineli, ukuguqulwa koxinzelelo akunakwenziwa kuphela.Ngokomzekelo, ukuguqulwa koxinzelelo lwe-CLAss300 # kufuneka kube yi-2.1MPa, kodwa ukuba ubushushu bokusetyenziswa buthathelwa ingqalelo, uxinzelelo oluhambelanayo luya kunyuka, olulingana ne-5.0MPa ngokweqondo lokushisa kunye noxinzelelo lwezinto eziphathekayo.
Kukho iintlobo ezimbini zeenkqubo ze-valve: enye yinkqubo "yoxinzelelo oluncinci" emelwe yiJamani (kuquka i-China) kwaye isekelwe kuxinzelelo oluvumelekileyo lokusebenza kwiqondo lokushisa eliqhelekileyo (100 ° C e-China kunye ne-120 ° C eJamani).Enye "yinkqubo yoxinzelelo lobushushu" emelwe yi-United States kunye noxinzelelo oluvumelekileyo lokusebenza kwiqondo elithile lobushushu.
Kwinkqubo yokushisa kunye noxinzelelo lwe-United States, ngaphandle kwe-150Lb, esekelwe kwi-260 ° C, amanye amanqanaba asekelwe kwi-454 ° C. Uxinzelelo oluvumelekileyo lweNombolo ye-25 ye-carbon steel valve ye-150lb (150PSI = 1MPa) kwi-260 ℃ yi-1MPa, kwaye uxinzelelo oluvumelekileyo kwiqondo lokushisa eliqhelekileyo lukhulu kakhulu kune-1MPa, malunga ne-2.0MPa.
Ngoko ke, ukuthetha ngokubanzi, iklasi yoxinzelelo lwegama elihambelana nomgangatho waseMelika we-150Lb yi-2.0MPa, kunye neklasi yoxinzelelo lwegama elihambelana ne-300Lb yi-5.0MPa, njl. ifomula yenguqu.
Ukongezelela, kwimigangatho yaseJapan, kukho inkqubo yebakala elithi "K", njenge-10K, 20K, 30K, njl. inkqubo yemetric.
Ngenxa yokuba ireferensi yobushushu boxinzelelo lwegama kunye neklasi yoxinzelelo yahlukile, akukho mbalelwano engqongqo phakathi kwabo.Jonga kwiThebhile malunga nembalelwano eqikelelweyo phakathi kwezi zintathu.
Itheyibhile yokuthelekisa yokuguqulwa kweepounds (Lb) kunye nomgangatho waseJapan (K) kunye noxinzelelo lwegama (ireferensi)
Lb – K – uxinzelelo lwegama (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
Itheyibhile 1 Itheyibhile yokuthelekisa phakathi kwe-CL kunye noxinzelelo lwe-PN
| CL | 150 | 300 | 400 | 600 | 800 |
| Uxinzelelo oluqhelekileyo lwe-PN/MPa | 2.0 | 5.0 | 6.8 | 11.0 | 13.0 |
| CL | 900 | 1500 | 2500 | 3500 | 4500 |
| Uxinzelelo oluqhelekileyo lwe-PN/MPa | 15.0 | 26.0 | 42.0 | 56.0 | 76.0 |
Itheyibhile 2 Itheyibhile yothelekiso phakathi kwebanga ”K” kunye ne-CL
| CL | 150 | 300 | 400 | 600 | 900 | 1500 | 2000 | 2500 | 3500 | 4500 |
| IBanga le-K | 10 | 20 | 30 | 45 | 65 | 110 | 140 | 180 | 250 | 320 |
Ixesha lokuposa: Jul-26-2022
