(1) Hauv cov txheej txheem, cov phab ntsa sab hauv thiab sab nrauv ntawm cov kav dej kub-dip galvanized steel kav lossis cov phab ntsa sab hauv thiab sab nrauv ntawm cov kav dej kub-dip galvanized seamless steel kav nrog cov yeeb nkab txoj kab uas hla < dn100="" tuaj="" yeem="" txuas="" nrog="" cov="" xov.="" thaum="" lub="" kaw="" lus="" siv="" cov="" kav="" dej="" kub-dip="" galvanized="" steel="" kav="" rau="" sab="" hauv="" thiab="" sab="" nrauv="" phab="" ntsa,="" cov="" yeeb="" nkab="" fittings="" tuaj="" yeem="" siv="" forged="" hlau="" threaded="" yeeb="" nkab="" fittings="" (gb3287="" ~="" 3289);="" thaum="" lub="" kaw="" lus="" siv="" kub-dip="" galvanized="" seamless="" steel="" kav="" rau="" sab="" hauv="" thiab="" sab="" nrauv,="" cov="" yeeb="" nkab="" fittings="" tuaj="" yeem="" siv="" forged="" steel="" threaded="" yeeb="" nkab="" fittings="" (gb="" t14626).="">
(2) Yog tias phab ntsa thickness ntawm cov yeeb nkab steel yog tsawg dua δ
(3) Thaum cov yeeb nkab siv 55 degree tapered yeeb nkab xov (Rc lossis R), cov xov sib txuas tuaj yeem raug kaw nrog PTFE daim kab xev; Thaum cov yeeb nkab tau txais 60 degree tapered yeeb nkab xov (NPT), nws yog advisable siv sealant raws li lub foob ntawm threaded interface. ; Lub sealing daim kab xev yuav tsum tau thov rau ntawm tus txiv neej xov.
(4) Cov kav dej uas muaj txoj kab uas hla ntawm cov yeeb nkab> DN50 yuav tsum tsis txhob siv cov hlua khi, thiab ib qho kev txo cov pob qij txha yuav tsum tau siv ntawm cov yeeb nkab txoj kab uas hla.
