Hydraulic qhov chaw pipeline

(1) Tubing yuav tsum tau xaiv raws li qhov siab thiab daim ntawv thov. Tubing yuav tsum muaj lub zog txaus. Sab hauv phab ntsa yuav tsum du thiab huv si, tsis muaj xuab zeb, xeb thiab oxide. Rau cov kav dej uas khaws cia rau lub sijhawm ntev, kev khaws cia, ntxuav, ntxuav thiab tshuaj xyuas yuav tsum tau nqa tawm ua ntej ua haujlwm. (2) Thaum txiav cov yeeb nkab nrog lub saw, qhov tsis yog-perpendicularity ntawm seem thiab axis kev taw qhia yuav tsum yog ±0.5 degree, lub ntse ntug yuav tsum tau sib npaug thiab cov hlau filings tshem tawm, thiab ellipticity ntawm seem tau tso cai rau 10% thaum ua cov yeeb nkab dabtsi yog khoov. Thaum lub sab nraud txoj kab uas hla tsawg dua 14 hli, cov yeeb nkab tuaj yeem khoov los ntawm txhais tes thiab nrog cov cuab yeej siv thoob ntiaj teb. Thicker steel kav yuav tsum tau khoov los ntawm phau ntawv los yog hluav taws xob dabtsi yog khoov tshuab, thiab lub vojvoog dabtsi yog khoov feem ntau yuav tsum siab tshaj 3 npaug ntawm txoj kab uas hla ntawm cov yeeb nkab. (3) Cov kev cai rau kev teeb tsa lub raj xa dej yog qhov yuav tsum tau ua kom luv, qhov tig yuav tsum tsawg li sai tau, thiab cov raj xa dej yuav tsum tau nruab nrog cov khoom siv hluav taws xob los pab txhawb lub qhov cua thaum pib.