Haum rau natural gas common rail roj siab 110R-000095
Khoom taw qhia
Xov hom
Muaj ntau ntau hom xov ntawm lub siab sensors, ntawm cov uas NPT, PT, G thiab M muaj ntau, tag nrho cov uas yog cov yeeb nkab threads.
NPT yog lub npe luv ntawm National (American) Yeeb Nkab Xov, uas belongs rau 60-degree taper yeeb nkab xov ntawm American siab sensor tus qauv thiab yog siv nyob rau hauv North America. Lub teb chaws tus qauv tuaj yeem pom hauv GB / T12716-1991.
PT yog lub ntsiab lus ntawm cov yeeb nkab xov, uas yog 55-degree kaw conical yeeb nkab xov. Nws belongs rau xov tsev neeg ntawm Wyeth siab sensors thiab feem ntau yog siv nyob rau hauv cov teb chaws Europe thiab Commonwealth lub teb chaws. Nws yog feem ntau siv nyob rau hauv dej thiab roj yeeb nkab kev lag luam, thiab lub taper yog teev raws li 1:16. Cov qauv hauv tebchaws tuaj yeem pom hauv GB / T7306-2000.
G yog 55-degree tsis-threaded sealing yeeb nkab xov, uas belongs rau xov tsev neeg ntawm Wyeth siab sensor. Mark G rau cylindrical xov. Cov qauv hauv tebchaws tuaj yeem pom hauv GB / T7307-2001.
M yog metric xov, piv txwv li, M20 * 1.5 qhia ib txoj kab uas hla ntawm 20mm thiab ib lub suab ntawm 1.5. Yog tias tus neeg siv khoom tsis muaj qhov tshwj xeeb, lub siab sensor feem ntau yog M20 * 1.5 xov.
Tsis tas li ntawd, 1/4, 1/2 thiab 1/8 cov cim hauv xov xa mus rau txoj kab uas hla ntawm cov xov loj hauv nti. Cov neeg nyob hauv kev lag luam feem ntau hu xov tooj feeb, ib nti sib npaug 8 feeb, 1/4 nti sib npaug 2 feeb, thiab lwm yam. G zoo li yog lub npe dav dav ntawm cov yeeb nkab xov (Guan), thiab qhov sib faib ntawm 55 thiab 60 degrees yog kev ua haujlwm, feem ntau hu ua yeeb nkab voj voog. Cov xov yog machined los ntawm ib tug cylindrical nto.
ZG feem ntau hu ua yeeb nkab cone, uas yog, cov xov yog machined los ntawm ib tug conical nto, thiab lub dav dej yeeb nkab siab sib koom ua ke yog zoo li no. Lub teb chaws qub qauv yog cim raws li Rc.
Metric threads yog qhia los ntawm suab, thaum American thiab British threads yog qhia los ntawm tus xov tooj ntawm threads ib nti, uas yog qhov sib txawv loj tshaj ntawm lub siab sensor threads. Metric threads yog 60-degree equilateral threads, British threads yog 55-degree isosceles threads, thiab American threads yog 60 degrees. Metric threads siv metric units, thiab American thiab British threads siv lus Askiv units.
Cov yeeb nkab xov yog tsuas yog siv los txuas cov kav dej siab, thiab nws cov xov sab hauv thiab sab nraud yog sib phim zoo. Muaj ob hom siab sensor yeeb nkab threads: ncaj yeeb nkab thiab tapered yeeb nkab. Nominal txoj kab uas hla yog hais txog txoj kab uas hla ntawm lub siab txuas txuas. Obviously, txoj kab uas hla loj ntawm cov xov yog loj dua lub nominal txoj kab uas hla. 1/4, 1/2 thiab 1/8 yog cov nominal diameters ntawm English threads, nyob rau hauv nti.