Plumber's thread seal tape, polytetrafluoroethylene film, muaj ntau lub npe siv xws li PTFE daim kab xev thiab daim kab xev dope.PTFE daim kab xev muab qhov tsim nyog sealant thiab lubrication rau cov yeeb nkab threads thiab yog lwm txoj hauv kev rau qee zaum cov yeeb nkab tsis zoo.PTFE daim kab xev los ntawm ntau yam xim, uas feem ntau suav nrog cov qauv dawb, daj thiab ntsuab kom sib haum nrog US thiab Canadian xim coded pipelines.Cov kab xev dawb yog qhov tsim nyog rau cov dej ntws yooj yim thaum lwm cov xim xim daj muaj cov xim daj thiab siv rau cov kab xev ntsuab muaj cov kab xev rau peb npaug rau cov piping oxygen.
Xov seal daim kab xev(tseem hu ua PTFE daim kab xev los yog cov kav dej daim kab xev) yog polytetrafluoroethylene (PTFE) zaj duab xis siv rau hauv sealing yeeb nkab threads.Cov kab xev yog muag txiav rau qhov dav dav thiab qhov txhab ntawm ib lub spool, ua rau nws yooj yim rau cua ncig cov yeeb nkab threads.Nws tseem paub los ntawm cov khoom lag luam-lub npe polymer daim kab xev;Thaum cov polymer yog qhov tseeb zoo ib yam rau PTFE, Chemours (cov neeg tuav cov cim lag luam) xav txog qhov kev siv no tsis raug, tshwj xeeb tshaj yog vim lawv tsis tsim cov khoom siv polymer hauv daim kab xev.Thread seal daim kab xev lubricates tso cai rau lub rooj sib sib zog nqus ntawm cov xov, thiab nws pab tiv thaiv Cov xov los ntawm kev ntes thaum tsis muaj screwed.Cov kab xev kuj ua hauj lwm raws li ib tug deformable muab tub lim thiab xov lubricant, pab muab lub sib koom tes tsis muaj hardening los yog ua rau nws nyuaj rau zawm, thiab es tsis txhob ua kom nws yooj yim rau zawm.
Feem ntau cov kab xev yog qhwv ib ncig ntawm ib lub yeeb nkab xov peb zaug ua ntej nws yuav tsum tau screwed rau hauv qhov chaw.Nws yog feem ntau siv hauv kev lag luam hauv cov ntawv thov suav nrog cov tshuab dej siab, lub tshuab cua sov hauv nruab nrab, thiab cov khoom siv cua compression.
Xov kab xev yog tsim nyog rau siv ntawm tapered threads, qhov twg lub sealing quab yuam yog ib tug wedge nkaus.Parallel threads yuav tsis kaw zoo nrog los yog tsis muaj daim kab xev, raws li lawv tau npaj los muab kaw los ntawm lub gasket.
Xov sealing daim kab xev yog yuav luag tag nrho siv los ntawm tes, txawm hais tias tsawg kawg yog ib lub tshuab muaj nyob rau ntau lawm wrapping ntawm fittings.
PTFE daim kab xev kuj feem ntau siv nyob rau hauv lub stretching ntawm lub cev piercings, los ntawm ib tug txheej txheem hu ua taping, vim hais tias nws yog inert thiab muaj kev ruaj ntseg rau qhov kev siv no.Tus neeg hnav khaubncaws sab nraud povtseg ntawm daim kab xev nyob ib ncig ntawm lub ntsaws, maj mam nce qhov loj thiab yog li maj mam nce qhov loj (gauge) ntawm qhov tho.
Post lub sij hawm: Nov-20-2017