Thaum ntxuav lub hydraulic valve, xyuam xim rau cov teeb meem hauv qab no:
(1) rau lub hydraulic valve nyob rau hauv lub sij hawm ntev deposition, muab tshuaj txhuam cov av, ntxuav tsis txhob khawb nrog nto.
(2) Ua tib zoo saib xyuas kev nyab xeeb thaum cua sov. Qee cov kua dej tsis huv yog tshuaj lom, cua sov volatilization tuaj yeem ua rau muaj tshuaj lom, yuav tsum tau siv ceev faj; organic ntxuav kua yog flammable, xyuam xim rau kev tiv thaiv hluav taws.
(3) Xaiv cov dej ntxuav, ua tib zoo saib xyuas nws cov khoom corrosive, kom tsis txhob muaj corrosion ntawm lub valve lub cev
(4) Tom qab ntxuav cov khoom yuav tsum tau xyuam xim rau kev khaws cia, kom tsis txhob muaj corrosion los yog rov ua paug (5) sib dhos hydraulic li qub yuav tsum tau kuaj thiab tsim nyog ua ntej muab tso rau hauv kev siv.
