Mokhoa oa ho fetolela Valve Pressure PSI, BAR le MPA joang?

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

Chaena, ka kakaretso re hlalosa khatello ea khase ka "kg" (ho e-na le "pound").Karolo ea 'mele ke "KG/CM^2", 'me khatello ea kilogram e le' ngoe ke matla a k'hilograma e le 'ngoe ea lisekoere centimeter.

Diyuniti tse sebediswang ka tlwaelo kantle ho naha ke “PSI”, mme yuniti e itseng ke “LB/In2”, e leng “pound/square inch”.Karolo ena e tšoana le leibole ea mocheso (F).

Ho phaella moo, ho na le PA (Pascal, Newton e le 'ngoe ea lisekoere-mithara), KPA, MPA, BAR, kholomo ea metsi ea millimeter, millimeter mercury le likarolo 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, o ka hopola sena:

1 Bar (BAR) = 1 Khatello e tloaelehileng ea sepakapaka (ATM) = 1 kg/square 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)

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

1 Boenjiniere khatello ea sepakapaka = 98.0665 kite (KPA)

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

1 pound force/inch 2 (PSI) = 6.895 kenta (KPA) = 0.0703 kg/cm 2 (kg/cm2) = 0.0689 Bar (bar) = 0.068 kgatello ya sepakapaka (ATM)

1 Khatello ea 'mele ea sepakapaka (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 "khatello ea lebitso" e emetsoeng ke Jeremane (ho kenyeletsoa naha ea heso) mocheso o tloaelehileng (China ke likhato tse 100 le Jeremane ke likhato tse 120).E 'ngoe ke "sistimi ea khatello ea mocheso" e emeloang ke US e emetsoeng 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.

250 -pounds (150PSI = 1MPa) No. 25 carbon steel valve e ne e le likhato tse 260, 'me khatello e amohelehang e ne e le 1MPa,' me khatello ea tšebeliso ea mocheso mocheso oa kamore e ne e le kholo ho feta 1MPa, e ka bang 2.0MPa.

Ka hona, ka kakaretso, boemo ba khatello ea lebitso bo lumellanang le maemo a US 150LB ke 2.0MPa, 'me boemo ba khatello ea lebitso bo lumellanang le 300LB ke 5.0MPa joalo-joalo.

Ka hona, u ke ke ua fetola khatello ea lebitso le boemo ba mocheso ho latela mokhoa oa phetoho ea khatello.