United States Txheem xov cov ntaub ntawv txhais los ntawm SAE thoob ntiaj teb, nws yog Lub Koom Haum ntawm Automotive Engineers. thooj plawv koom nrog kev ua haujlwm thoob ntiaj teb thiab cov qauv kev txhim kho lub koom haum rau kev tshaj lij engineering hauv kev ua haujlwm ntau yam xws li aerospace, tsheb, thiab cov tsheb lag luam.
SAE xov suav nrog UNC, UNF, UNS, UNJ, UNEF, NPT, NPTR, NPTF, NPS, NPSC, NPSF, NPSH, NPSL, NPSM
Unified Xov Txoj Kev (UTS), yog cov xov kab tseem ceeb siv nyob rau hauv Tebchaws Asmeskas thiab Canada. Nws tau txhais hauv ANSI / ASME B1.1 Unified Inch Screw Threads, (UN thiab UNR Thread Form). Qee qhov khoom lag luam tseem tau ua raws li American National Standard Series, uas muaj qhov txawv me ntsis ntawm qhov tshwj xeeb, thiab tau siv thev naus laus zis txij li xyoo 1949. Lub teb chaws tus qauv qub tau sib xws nrog cov qauv tshiab tsis muaj kev sib koom ua ke, tab sis ntev dhau hnub lawm.Qhov no kev koom ua ke muaj xws li:
UNCis Unified Coarsethread, yog tus sawv cev sau cia rau xov xwm tsis muaj lawm National Coarse (NC).
UNFis Unified Cov xov zoo, tus ua tiav rau xov tsis muaj lawm National nplua (NF) xov.
UNEFis Unified Cov Lus Qhia Ntxiv Ntxiv
UNSis Unified Cov Lus Qhia Tshwj Xeeb
UNJ yog Aerospace nti xov - ISO 3161
NPTNational cov yeeb nkab threadisused (hauv Teb Chaws Asmeskas) rau cov kav dej ntawm cov kav dej thiab roj, thiab xov kab hluav taws xob tsis sib haum.NPT yog txhais los ntawm ANSI / ASME tus qauv B1.20.1, American National Standard Taper Yeeb Nkab Xov.
NPTRis Lub Teb Chaws Cov Yeeb Nkab Rau Cov Yeeb Nkab Nruab Nrab Xov Yeeb Xov, American National Standard Taper Yeeb Nkab Xov Rau Railing Cov Txuas
NPTFisNational Yeeb Nkab Xov Kev Siv Hluav Taws Xob Tshaj Tawm rau ANSI / ASME B1.20.1-1983, Tebchaws USA Dryseal (Asmeskas) Txheem Taper Yeeb Nkab Xov.
NPS yog Lub Teb Chaws Cov Yeeb Nkab Ncaj Ncaj, American National Standard Ncaj Yeeb Nkab Xov Xwm yog rau nruj; sealable tsuas yog nrog sealant; qee zaum txiv neej ua ncaj ncaj ntim ntawm poj niam tapered rau low-pressure sealing.
NPSCis National Yeeb Nkab ncaj ncaj – txuas, American National Standard Ncaj Yeeb Nkab Xov rau Kev Sib Txuas Rau Cov Txuas Txuas Txuas Rau Txuas Txuas.
NPSFis Lub Tebchaws Cov Yeeb Nkaj ncaj nraim – roj, Dryseal Tebchaws Asmeskas (Asmeskas) Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Sab Hauv Ncaj Ncaj Xov rau sab hauv nkaus xwb, ncaj.
NPSHis Lub Tebchaws Cov Yeeb Nkab xa ncaj – hose, American National Standard Ncaj Yeeb Nkab Xov Rau Hose Couplings rau hose txuas.
NPSIis Lub Tebchaws Cov Yeeb Nkab ncaj ncaj mediate nruab nrab, Dryseal Tebchaws Asmeskas (Asmeskas) Cov Qauv Nruab Nrab Nruab Nrab Nruab Nrab Nyuaj Siab Yeeb Nkab Threadfor sab hauv tsuas yog, ncaj, Zoo ib yam li NPSF tab sis loj me ntsis.
NPSLis Lub Tebchaws Cov Yeeb Nkab ncaj nraim – chav xauv ntsej, Asmeskas Txoj Cai National Straight Yeeb Nkab Xov rau xoob xoob lub tshuab ua ke nrog Xauv Cov Khaub Ncaws.
NPSMisNational Yeeb Nkab Ncaj Ncaj Txhua Yam ANSI / ASME B1.20.1-1983, Asmeskas Kev Tshawb Fawb Txog Cov Ncaj Ncaj Ncaj Xov rau kom tsis txhob muaj tshuab qij txha. ]
