1, nyob rau hauv qhov xwm txheej tsis cuam tshuam cov txheej txheem ntawm cov yeeb nkab vuam, yuav tsum tsim nyog kom ntev li ntev tau, epoxy hmoov kawg ntawm polyethylene txheej tuaj yeem tiv thaiv vim cov yeeb nkab steel pawg ntev ntev, cov yeeb nkab hlau corrosion tshwm sim los ntawm qhov hnyav 3 PE anticorrosive ua warped ntug.

2, Anticorrosive yeeb nkab rau lub sijhawm ntev, tso rau hauv qhov qhib huab cua yuav tsum tau npog hauv cov yeeb nkab, tiv thaiv cov nag yaig, ua rau cov yeeb nkab loj heev.

3, Yog hais tias lub raj xa hluav taws xob siv lub voj voog ntev ntev, tuaj yeem ua rau cov txhuam hniav tuaj yeem tiv thaiv xeb xim raj liab qab hlau, los tiv thaiv corrosion yeeb nkab los ntawm corrosion thaum lub sij hawm cia ntawm 3 PE txheej ua warped ntug.

Ntau tshaj 4, kev tswj nruj ntawm cov raj kawg tshwj xeeb hauv kev sib tsoo nrog cov khoom zoo. Polyethylene nyob rau hauv weld slopes outlets thiab tus so ntawm cov yeeb nkab lub cev, ua rau cov epoxy hmoov reserved ntev> 20 mm, thiaj li yuav tiv thaiv cov welds epoxy hmoov nyob rau hauv qab ntawm corrosion tshwm sim los ntawm thawj 3 PE anticorrosion txheej ua warped ntug.