Mokhoa oa ho fetola khatello ea valve PSI, BAR le MPA?

Phetoho ea PSI le MPA, PSI ke yuniti ea khatello, e hlalosoang e le pound/square inch ea Brithani, 145PSI = 1MPa, 'me PSI English e bitsoa Pounds ka square in. P ke Pound, S ke Square, 'me i ke Inch. U ka bala liyuniti tsohle tse nang le liyuniti tsa sechaba:1bar≈14.5PSI, 1PSI = 6.895kpa = 0.06895barEurope le United States le linaha tse ling li tloaetse ho sebelisa PSI e le yuniti.

Chaena, ka kakaretso re hlalosa khatello ea khase ka "kg" (ho e-na le "pound"). Yuniti ea 'mele ke "KG/CM^2″, 'me khatello ea kilogram e le' ngoe ke matla a kilogram e le 'ngoe ho sekwere sa sentimetara se le seng.

Diyuniti tse sebediswang hangata kantle ho naha ke “PSI”, mme yuniti e ikgethang ke “LB/In2″, e leng “pound/square inch”. Yuniti ena e tshwana le leiboleng la mocheso (F).

Ho phaella moo, ho na le PA (Pascal, Newton e le 'ngoe e holim'a mithara e le 'ngoe ea sekwere), KPA, MPA, BAR, kholomo ea metsi ea millimeter, millimeter mercury le li-unit tse ling tsa khatello.

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

1 Khatello e tloaelehileng ea sepakapaka (ATM) = 0.101325 MPa (MPA) = 1.0333 Bar (BAR)

Hobane phapang ea yuniti e nyane haholo, u ka hopola sena:

1 Bar (BAR) = 1 Khatello e tloaelehileng ea sepakapaka (ATM) = 1 kg/sekwere sa centimeter = 100 kilo (KPA) = 0.1 MPa (MPA)

Phetoho ea PSI ke e latelang:

1 Khatello e tloaelehileng ea sepakapaka (ATM) = 14.696 pound/inch 2 (PSI)

Kamano ea phetoho ea khatello:

Khatello ea 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)

Kholomo ea metsi ea 1 mm (mmh2O) = 9.80665 Pa (PA)

1 Khatello ea sepakapaka ea boenjiniere = 98.0665 kite (KPA)

1 Knipa (KPA) = 0.145 pounds/inch 2 (PSI) = 0.0102 kg/cm 2 (kgf/cm2) = 0.0098 kgatello ya sepakapaka (ATM)

Matla a ponto e le 1/inch 2 (PSI) = 6.895 kenta (KPA) = 0.0703 kg/cm 2 (kg/cm2) = 0.0689 Bare (bara) = 0.068 khatello ea sepakapaka (ATM)

1 Kgatelelo ya sepakapaka ya mmele (ATM) = 101.325 Kenpa (KPA) = 14.696 pounds/inch 2 (PSI) = 1.0333 Bar (BAR)

Ho na le mefuta e 'meli eali-valve: e 'ngoe ke sistimi ea "khatello e tloaelehileng" e emeloang ke Jeremane (ho kenyeletsoa le naha ea heso) mochesong o tloaelehileng (Chaena ke likhato tse 100 'me Jeremane ke likhato tse 120). E 'ngoe ke "tsamaiso ea khatello ea mocheso" e emeloang ke US mochesong o itseng mochesong o itseng.

Har'a tsamaiso ea mocheso le khatello United States, ntle le 150LB e thehiloeng ho likhato tse 260, maemo a mang maemong 'ohle a thehiloe ho likhato tse 454.

Valve ea tšepe ea khabone ea boima ba lik'hilograma tse 250 (150PSI = 1MPa) No. 25 e ne e le likhato tse 260, 'me khatello e lumelletsoeng e ne e le 1MPa, 'me khatello ea tšebeliso mochesong oa kamore e ne e le kholo haholo ho feta 1MPa, e ka bang 2.0MPa.

Ka hona, ka kakaretso, boemo ba kgatello bo tsamaellanang le maemo a US a 150LB ke 2.0MPa, mme boemo ba kgatello bo tsamaellanang le 300LB ke 5.0MPa jj.

Ka hona, o ke ke wa fetola kgatello e tlwaelehileng le boemo ba mocheso ho ya ka foromo ya phetoho ya kgatello.