304 igwe anaghị agba nchara okpukpu abụọ-mwekota akwa akwa akwa kwụ ọtọ ogologo ọkpọkọ mmiri ọkpọkọ dabara adaba kpọmkwem ọkpọkọ dabara adaba 1 usoro.
Ngwakọta ọkpọkọ igwe anaghị agba nchara nke eriri na-eguzogide corrosion sitere na kemịkalụ caustic, mmiri na-emebi emebi, mmanụ na gas, na-eguzogide nrụgide na okpomọkụ dị elu na ngwa ngwa mmiri na nhazi nri na mmiri ara ehi.A na-agbanye eriri ọkpọkọ eriri na njedebe njikọ abụọ ahụ.Eriri nwanyị dị n'ime nke dabara adaba.Eriri nwoke dị n'èzí nke dabara adaba ma gbanye n'ime eriri nwanyị.NPT (American National Standard Pipe Threads) na BSPT (British Standard Pipe Threads) bụ ihe a na-amata site na akụkụ taper eri ha.Enwekwara eriri ọkpọkọ kwụ ọtọ (NPS) na ihe ntinye ọkpọkọ metrik (M).A na-amata ihe nrụnye ọkpọkọ metrik site na dayameta dị n'èzí na oghere eri.Njikọ ndị a anaghị achọ gluu ma ọ bụ nrapado, mana teepu PTFE na-ejide akara.Ngwakọta eriri na-abịa n'ụdị nha na ụdị dị iche iche.
Igwe anaghị agba nchara klaasị 150 na-ejikọta ya na ọkpọkọ-nrụgide (300-999 psi).A na-agbanye eriri ọkpọkọ eriri na njedebe njikọ abụọ ahụ.Eriri nwanyị dị n'ime nke dabara adaba.Eriri nwoke dị n'èzí nke dabara adaba ma gbanye n'ime eriri nwanyị.Njikọ eriri gụnyere NPT (National Pipe Thread) ma ọ bụ BSPT (British Standard Pipe Taper), ma jiri PTFE teepu iji chekwaa akara.Ụdị 304 igwe anaghị agba nchara, ihe chromium-nickel, na-eguzogide corrosion nke mmiri, okpomọkụ, nnu nnu, acid, mineral, na peaty ala kpatara.Ụdị 316 igwe anaghị agba nchara nwere ọdịnaya nickel dị elu karịa 304 igwe anaghị agba nchara, gbakwunyere molybdenum, maka ọbụna nguzogide corrosion ka ukwuu.
