ʻO ka hoʻololi ʻana o PSI a me MPA, ʻo PSI kahi ʻāpana kaomi, i wehewehe ʻia ʻo ka paona Pelekania / ʻīniha huinaha, 145PSI = 1MPa, a ʻo ka PSI English ua kapa ʻia ʻo Paona no kēlā me kēia huinaha.Hiki iā ʻoe ke helu i nā ʻāpana āpau me nā ʻāpana lehulehu:1 bar≈14.5PSI, 1PSI = 6.895kpa = 0.06895barHoʻohana ʻia ʻo ʻEulopa a me ʻAmelika a me nā ʻāina ʻē aʻe e hoʻohana i ka PSI ma ke ʻano he hui.
Ma Kina, wehewehe mākou i ke kaomi o ke kinoea ma "kg" (ma kahi o "paona").ʻO ka hui kino ʻo “KG/CM^2″, a ʻo ke kaomi o hoʻokahi kilokani ka ikaika o hoʻokahi kilokani ma hoʻokahi kenimika huinaha.
ʻO nā ʻāpana i hoʻohana mau ʻia ma nā ʻāina ʻē he "PSI", a ʻo ka ʻāpana kikoʻī ʻo "LB/In2″, ʻo ia hoʻi "paona / ʻāpana ʻāpana".Ua like kēia ʻāpana me ka lepili wela (F).
Eia kekahi, aia he PA (Pascal, hoʻokahi Newton ma hoʻokahi mika square), KPA, MPA, BAR, kolamu wai millimeter, millimeter mercury a me nā ʻāpana kaomi ʻē aʻe.
1 Bar (BAR) = 0.1 MPa (MPA) = 100 Knaka (KPA) = 1.0197 kg/kenimika huinaha
1 Pumi lewa maʻamau (ATM) = 0.101325 MPa (MPA) = 1.0333 Bar (BAR)
No ka mea liʻiliʻi loa ka ʻokoʻa ʻāpana, hiki iā ʻoe ke hoʻomanaʻo i kēia:
1 Bara (BAR) = 1 Pumi lewa maʻamau (ATM) = 1 kg/kenimika huinaha = 100 kilo (KPA) = 0.1 MPa (MPA)
ʻO ka hoʻololi ʻana o PSI penei:
1 Pumi lewa maʻamau (ATM) = 14.696 paona/inihi 2 (PSI)
Pilikia hoʻololi kaomi:
Paʻi 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 kolamu wai (mmh2O) = 9.80665 Pa (PA)
1 Pumi lewa ʻenekinia = 98.0665 lupe (KPA)
1 Knipa (KPA) = 0.145 paona/inihi 2 (PSI) = 0.0102 kg/cm 2 (kgf/cm2) = 0.0098 puʻe lewa (ATM)
1 paona ikaika/inihi 2 (PSI) = 6.895 kenta (KPA) = 0.0703 kg/cm 2 (kg/cm2) = 0.0689 Bar (pa) = 0.068 kaomi lewa (ATM)
1 Pumi lewa kino (ATM) = 101.325 Kenpa (KPA) = 14.696 paona/inihi 2 (PSI) = 1.0333 Bar (BAR)
ʻElua ʻano okiwikā: ʻo kekahi ka ʻōnaehana "nominal pressure" i hōʻike ʻia e Kelemania (me koʻu ʻāina) i ka mahana maʻamau (ma Kina he 100 degere a ʻo Kelemania he 120 degere).ʻO kekahi ʻo ka "pūnaewele kaomi wela" i hōʻike ʻia e ka US i hōʻike ʻia ma kahi mahana ma kahi mahana.
Ma waena o ka ʻōnaehana wela a me ke kaomi ma ʻAmelika Hui Pū ʻIa, koe wale no 150LB e pili ana i 260 degere, ʻo nā pae ʻē aʻe ma nā pae āpau e kau ʻia ma 454 degere.
ʻO ka 250 -paona (150PSI = 1MPa) No. 25 carbon steel valve he 260 degere, a ʻo ke koʻikoʻi ʻae ʻia ʻo 1MPa, a ʻo ka hoʻohana ʻana i ke koʻikoʻi ma ka lumi wela ka nui ma mua o 1MPa, ma kahi o 2.0MPa.
No laila, ma ka laulā, ʻo ka pae kaomi nominal e pili ana i ka maʻamau US 150LB ʻo 2.0MPa, a ʻo ka pae kaomi nominal e pili ana me 300LB ʻo 5.0MPa a pēlā aku.
No laila, ʻaʻole hiki iā ʻoe ke hoʻololi i ke kaomi nominal a me ka pae wela e like me ke ʻano hoʻololi kaomi.
Ka manawa hoʻouna: Sep-11-2023