Cov yeeb nkab xov yuav tsum tau ua raws li cov lus qhia tshwj xeeb thaum threading, thiab cov kav dej uas muaj teeb meem xws li cov xov hlau tawg thiab cov xov hlau uas ploj lawm tsis raug tso cai rau nruab; cov kav dej uas siv rau kev kho kom zoo nkauj hauv tsev yuav tsum yog cov kav dej thiab cov yeeb nkab fittings, thiab cov kav dej yuav tsum tau ua tib zoo xyuas thaum lub sij hawm installation. Xyuas seb cov yeeb nkab fittings puas muaj kev puas tsuaj, kom tsis txhob rov ua dua thiab kho; Tom qab kev teeb tsa cov kav dej tiav lawm, kev sim hydraulic yuav tsum tau ua, thiab txhua qhov sib koom ua ke yuav tsum tau ua tib zoo xyuas kom ntseeg tau tias tsis muaj qhov xau ua ntej nws tso cai rau siv, lossis mus rau cov txheej txheem tom ntej.
