ISO 9974-2 Kev sib txuas rau kev siv thiab kua fais fab - Cov chaw nres nkoj thiab kev tu ncua xaus nrog ISO 261 threads nrog elastomeric los yog hlau-hlau-sib khi - Tshooj 2: Nom kawm xaus nrog elastomeric sealing (hom E)
Qhov no ntawm ISO 9974 qhia txog qhov ntev, qhov yuav tsum tau ua thiab cov txheej txheem kev ua haujlwm rau cov haujlwm hnyav (S series) thiab lub teeb-lens (L series) xaus nrog ISO 261 threads thiab lub tshuab hluav taws xob uas siv nrog lawv. Nws tseem qhia meej txog cov npe ntawm cov kev kawm no tas hnub thiab lawv cov seal elastomeric sealing.
Heavy-duty (S series) kev kawm xaus nrog hom E sealing raws li ntu ntawm ISO 9974 siv tau rau kev ua haujlwm ntawm kev ua haujlwm txog 63 MPa (630 bar1)). Lub teeb ntawm kev ua haujlwm (L Series) xaus nrog hom E seev raws li ntu ntawm ISO 9974 siv tau rau kev ua haujlwm kom txog 25 MPa (250 bar). Qhov tso cai ua haujlwm siab yog nyob ntawm qhov kawg ntawm qhov kev kawm, cov ntaub ntawv, kev tsim, kev ua haujlwm, daim ntawv thov, thiab lwm yam.
Cov ntaub ntawm qhov chaw nres nkoj thiab cov ntaub ntawv kawm tiav yog teev nyob rau hauv cov qauv tshiab hauv hydraulic fluid daim ntawv sau npe, tsuas yog siv ISO 6149. Threaded cov chaw nres nkoj thiab cov ntawv kawm tiav raws li ISO 1179, ISO 9974 thiab ISO 11926 tsis yog siv rau cov qauv tshiab hauv cov hydraulic fluid daim ntawv sau npe.
Kev ua tiav ntawm cov lus qhia hauv qhov chaw ntawm ISO 9974 tsis tuaj yeem lav qhov kev ua tau zoo. Txhua lub chaw ua haujlwm yuav tsum ua raws li cov lus qhia hauv ntu ntawm ISO 9974 kom paub tseeb tias cov khoom ua raws li kev ua tau zoo.
