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)
ʻO ka pilina 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 kaomi 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