Thaum lub raj xa dej yuav tsum tau txuas nrog, ceg, tig, thiab txo txoj kab uas hla, nws yuav tsum tau txuas nrog cov yeeb nkab fittings. Feem ntau siv yeeb nkab fittings yog lub luj tshib, tees, reducers thiab cov yeeb nkab txuas. Threaded yeeb nkab fittings muab faib ua ob hom: galvanized thiab non-galvanized, thiab feem ntau yog ua los ntawm malleable hlau. Feem ntau siv threaded yeeb nkab fittings yog: cov yeeb nkab txuas yog siv rau kev sib txuas ntawm ob lub kav dej lossis nrog lwm cov yeeb nkab fittings; reducers (lub taub hau loj thiab me) yog siv los txuas ob lub kav dej nrog cov kab sib txawv; sib npaug txoj kab uas hla thiab txo tee, sib npaug txoj kab uas hla Nws yog siv rau kev sib txuas ntawm ob lub raj xa dej thaum lub dav hlau sib tshuam vertically; lub union yog siv rau cov kav dej uas yuav tsum tau dismantled ntau zaus; threaded fittings yog tsuas yog siv rau cov kav dej, cua sov thiab dej thiab cov kav dej. Nyob rau hauv cov txheej txheem pipeline, tshwj tsis yog rau cov kav dej uas tsis tshua muaj siab uas yuav tsum tau dismantled ntau zaus, nws tsis tshua muaj siv rau lwm cov kav dej. Stamping seamless luj tshib yog ua los ntawm high-zoo carbon steel, stainless acid-resistant steel thiab low-alloy steel seamless steel kav, uas yog nias thiab tsim nyob rau hauv ib tug tshwj xeeb pwm. Muaj 90 degree thiab 45 degrees; stamping thiab vuam luj tshib yog ua los ntawm tib lub phaj khoom raws li cov kav dej thiab xuas nrig ntaus rau hauv ib nrab ntawm lub luj tshib nrog ib tug tuag, thiab ces welded ua ke. Feem ntau, cov khoom lag luam ib nrab yog xa tuaj ua khub, thiab cov vuam yog ua raws li qib vuam seam ntawm cov kav dej thaum tsim kho. Lub luj tshib siab yog forged los ntawm cov pa roj carbon zoo thiab cov hlau tsis tshua muaj hlau. Raws li daim ntawv txuas cov yeeb nkab, ob qhov kawg ntawm lub luj tshib tau ua tiav rau hauv cov xov los yog zawj, thiab cov txheej txheem ua tiav yog siab heev.
