304 bakin ciki-bakin karfe biyu-matsa kayan aiki daidaitacce madaidaiciya madaidaiciya bututu ruwa bututu kayan aiki kai tsaye bututu mai dacewa 1 jerin
Kayan aikin bututun bakin karfe da aka zare suna tsayayya da lalata daga sinadarai masu lalacewa, ruwa mai lalata, mai, da gas, da jure matsi da yanayin zafi a aikace-aikacen famfo da sarrafa abinci da kiwo.Fitattun bututun da aka zare suna zaren zare akan iyakar haɗin biyu.Zaren mata suna cikin kayan dacewa.Zaren maza suna kan waje na dacewa kuma su dunƙule cikin zaren mace.NPT (American National Standard Pipe Threads) da BSPT (British Standard Pipe Threads) ana iya bambanta su ta kusurwar taper ɗin su.Hakanan akwai madaidaicin (NPS) kayan aikin bututu da kayan aikin bututu na awo (M).Ana gano kayan aikin bututun awo ta hanyar diamita na waje da kuma fitin zaren.Waɗannan haɗin gwiwar ba sa buƙatar manne ko mannewa, amma tef ɗin PTFE yana riƙe hatimi sosai.Abubuwan da aka zana sun zo cikin girma da siffofi iri-iri.
Class 150 threaded bakin karfe kayan aiki haɗi tare da matsakaici-matsi (300-999 psi) bututu.Fitattun bututun da aka zare suna zaren zare akan iyakar haɗin biyu.Zaren mata suna cikin kayan dacewa.Zaren maza suna kan waje na dacewa kuma su dunƙule cikin zaren mace.Hanyoyin haɗi sun haɗa da NPT (National Pipe Thread) ko BSPT (British Standard Pipe Taper), kuma amfani da tef ɗin PTFE don amintaccen hatimi.Nau'in bakin karfe 304, kayan chromium-nickel, yana tsayayya da lalata da ruwa, zafi, ruwan gishiri, acid, ma'adanai, da ƙasa peaty ke haifarwa.Nau'in bakin karfe na 316 yana da mafi girman abun ciki nickel fiye da bakin 304, da molybdenum, don ma fi girma juriya.
