Ungayiguqula njani iValve Pressure PSI, BAR kunye neMPA?

Ukuguqulwa kwe-PSI kunye ne-MPA, i-PSI yiyunithi yoxinzelelo, echazwa njenge-British pound/square inch, i-145PSI = 1MPa, kwaye i-PSI English ibizwa ngokuba yi-Pounds ngesikwere kwi-in. I-P yi-Pound, i-S yi-Square, kwaye i yi-Inch. Ungabala zonke iiyunithi ngeeyunithi zikawonke-wonke:Ibha eyi-1≈14.5PSI, i-1PSI = 6.895kpa = 0.06895bhaIYurophu neMelika kunye namanye amazwe aqhele ukusebenzisa i-PSI njengeyunithi.

ETshayina, ngokubanzi sichaza uxinzelelo lwegesi kwi-"kg" (endaweni ye-"pound"). Iyunithi yomzimba yi-"KG/CM^2″, kwaye uxinzelelo lwekhilogram enye ngamandla ekhilogram enye kwisentimitha enye yesikwere.

Iiyunithi ezisetyenziswa kakhulu kwamanye amazwe yi-“PSI”, kwaye iyunithi ethile yi-“LB/In2″, eyi-“pound/square inch”. Le yunithi ifana nelebheli yobushushu (F).

Ukongeza, kukho ii-PA (iPascal, enye iNewton ikwimitha yesikwere enye), i-KPA, i-MPA, i-BAR, ikholamu yamanzi ye-millimeter, i-millimeter mercury kunye nezinye iiyunithi zoxinzelelo.

1 Ibha (BAR) = 0.1 MPa (MPA) = 100 Knaka (KPA) = 1.0197 kg/square centimeter

1 Uxinzelelo oluqhelekileyo lomoya (ATM) = 0.101325 MPa (MPA) = 1.0333 Ibha (BAR)

Ngenxa yokuba umahluko weyunithi mncinane kakhulu, ungakhumbula oku:

1 Ibha (iBAR) = 1 Uxinzelelo oluqhelekileyo lomoya (i-ATM) = 1 kg/isentimitha yesikwere = 100 kilo (i-KPA) = 0.1 MPa (i-MPA)

Ukuguqulwa kwe-PSI kulandelayo:

1 Uxinzelelo oluqhelekileyo lomoya (ATM) = 14.696 pound/inch 2 (PSI)

Ulwalamano lokuguqulwa koxinzelelo:

Uxinzelelo lwe-1 Bar (BAR) = 10^ 5 Pa (PA) 1 Dadin / cm 2 (dyn / cm2) = 0.1 Pa (PA)

1 Terr = 133.322 Pa (PA) 1 mm Hg (mmHg) = 133.322 Pa (PA)

Ikholamu yamanzi eyi-1 mm (mmh2O) = 9.80665 Pa (PA)

1 Uxinzelelo lomoya lobunjineli = 98.0665 kite (KPA)

1 I-Knipa (KPA) = 0.145 pounds/intshi 2 (PSI) = 0.0102 kg/cm 2 (kgf/cm2) = 0.0098 uxinzelelo lomoya (ATM)

Amandla eponti e-1/intshi 2 (PSI) = 6.895 i-kenta (KPA) = 0.0703 kg/cm 2 (kg/cm2) = 0.0689 Ibha (ibha) = 0.068 uxinzelelo lomoya (ATM)

1 Uxinzelelo lomoya olubonakalayo (ATM) = 101.325 Kenpa (KPA) = 14.696 pounds/intshi 2 (PSI) = 1.0333 Ibha (BAR)

Kukho iintlobo ezimbini zeiivalvu: enye yinkqubo "yoxinzelelo oluqhelekileyo" emelwe yiJamani (kuquka nelizwe lam) kubushushu obuqhelekileyo (eTshayina yi-100 degrees kwaye iJamani yi-120 degrees). Enye yinkqubo "yoxinzelelo lobushushu" emelwe yi-US emelwe kubushushu obuthile kubushushu obuthile.

Phakathi kweenkqubo zobushushu kunye noxinzelelo eMelika, ngaphandle kwe-150LB esekelwe kwiidigri ezingama-260, amanye amanqanaba kuwo onke asekelwe kwiidigri ezingama-454.

Ivalvu yentsimbi yekhabhoni engama-250-pound (150PSI = 1MPa) No. 25 yayingama-260 degrees, kwaye uxinzelelo oluvumelekileyo yayiyi-1MPa, kwaye uxinzelelo lokusetyenziswa kubushushu begumbi lwalukhulu kakhulu kune-1MPa, malunga ne-2.0MPa.

Ngoko ke, ngokubanzi, inqanaba loxinzelelo oluqhelekileyo oluhambelana nomgangatho wase-US we-150LB yi-2.0MPa, kwaye inqanaba loxinzelelo oluqhelekileyo oluhambelana ne-300LB yi-5.0MPa njalo njalo.

Ngoko ke, awunakutshintsha inqanaba loxinzelelo oluqhelekileyo kunye neqondo lobushushu ngokwefomula yokuguqula uxinzelelo.