ʻO ka hoʻololi ʻana o Psi i MPa, ʻo ka psi he ʻāpana kaomi, i wehewehe ʻia he paona i kēlā me kēia ʻīniha huinaha, 145psi=1MPa, kapa ʻia ʻo PSI ʻo Pound sper square inch ma ka ʻōlelo Pelekania.P he paona, S he huinaha, a he iniha au.Ke hoʻololi nei i nā ʻāpana a pau i nā ʻāpana metric e loaʻa:
1bar≈14.5psi;1psi=6.895kPa=0.06895bar
Ua maʻa nā ʻāina e like me ʻEulopa a me ʻAmelika i ka hoʻohana ʻana i ka psi ma ke ʻano he ʻāpana
Ma Kina, wehewehe maʻamau mākou i ke kaomi o ke kinoea ma "kg" (ma mua o "jin"), a ʻo ka hui kino ʻo "kg/cm^2″.Hoʻokahi kilokani o ke kaomi ʻo ia hoʻi, hoʻokahi kilokani o ka ikaika e hana i hoʻokahi kenimika huinaha.
ʻO ka mea maʻamau i hoʻohana ʻia ma nā ʻāina ʻē he "Psi", a ʻo ka ʻāpana kikoʻī ʻo "lb/in2", ʻo ia ka "paona i kēlā me kēia ʻīniha square".Ua like kēia ʻāpana me ka unahi mahana Fahrenheit (F).
Eia kekahi, aia nā Pa (Pascal, hoʻokahi Newton e hana i hoʻokahi mika square), KPa, Mpa, Bar, kolamu wai millimeter, kolamu mercury millimeter a me nā ʻāpana ʻē aʻe.
1 pā (pa) = 0.1 MPa (MPa) = 100 kilopascal (KPa) = 1.0197 kg/cm²
1 kaomi lewa maʻamau (ATM) = 0.101325 MPa (MPa) = 1.0333 pā (pa)
No ka mea liʻiliʻi loa ka ʻokoʻa o nā ʻāpana, hiki iā ʻoe ke kākau penei:
1 pahu (pa) = 1 kaomi lewa maʻamau (ATM) = 1 kg/cm2 = 100 kilopascals (KPa) = 0.1 megapascals (MPa)
ʻO ka hoʻololi psi penei:
1 kaomi lewa maʻamau (atm) = 14.696 paona no ka ʻīniha 2 (psi)
Pilikia hoʻololi kaomi:
Paʻi 1 pā (pa) = 10^5 Pa (Pa) 1 dyne/cm2 (dyn/cm2) = 0.1 Pa (Pa)
1 Torr (Torr) = 133.322 Pa (Pa) 1 millimeter o mercury (mmHg) = 133.322 Pa (Pa)
1 mm kolamu wai (mmH2O) = 9.80665 Pa (Pa)
1 kaomi ʻenekinia ea = 98.0665 kilopascals (kPa)
1 kilopascal (kPa) = 0.145 lbf/in2 (psi) = 0.0102 kgf/cm2 (kgf/cm2) = 0.0098 kaomi lewa (atm)
1 paona ikaika/inihi 2 (psi) = 6.895 kilopascal (kPa) = 0.0703 kilokani ikaika / kenimika 2 (kg/cm2) = 0.0689 bar (pa) = 0.068 kaomi lewa (atm)
1 kaomi lewa kino (atm) = 101.325 kilopascals (kPa) = 14.696 paona no ka iniha 2 (psi) = 1.0333 bar (pa)
ʻElua ʻano o nā ʻōnaehana valve: ʻo ka ʻōnaehana "nominal pressure" i hōʻike ʻia e Kelemania (me koʻu ʻāina) ma muli o ke kaomi hana ʻae ʻia ma ka lumi wela (100 degere ma koʻu ʻāina a me 120 degere ma Germany).ʻO kekahi ʻo ka "temperature and pressure system" i hōʻike ʻia e ʻAmelika Hui Pū ʻIa a hōʻike ʻia e ke kaomi hana ʻae ʻia i kekahi mahana.
Ma ka ʻōnaehana wela a me ke kaomi o ʻAmelika Hui Pū ʻIa, koe wale nō ka 150LB, kahi i hoʻokumu ʻia ma 260 degere, ua hoʻokumu ʻia nā pae ʻē aʻe a pau ma 454 degere.
ʻO ke koʻikoʻi i ʻae ʻia o ka papa 150-psi (150psi=1MPa) No.
No laila, ma ka ʻōlelo maʻamau, ʻo ka pae kaomi nominal e pili ana i ka maʻamau ʻAmelika 150LB ʻo 2.0MPa, ʻo ka pae kaomi nominal e pili ana i 300LB ʻo 5.0MPa, a pēlā aku.
No laila, ʻaʻole hiki ke hoʻololi ʻia ke kaomi nominal a me ka mahana a me ke kaomi maʻamau e like me ke ʻano hoʻololi kaomi.
Psi a MPa papa hoʻololi kaomi
Hoʻololi PSI-MPa
