Switsundzuxo swo tirhisa valve.

Endlelo ro tirhisa valve na rona i endlelo ro kambela na ku khoma valve. Hambiswiritano, timhaka leti landzelaka tifanele ku tekeriwa enhlokweni loko ku tirhisiwa valve.

1Valva ya mahiselo ya le henhla. Loko mahiselo ya tlakuka ehenhla ka 200°C, ti bolts ta hisiwa naswona ti lehisiwa, leswi olovaka ku endla leswaku valve seal yi ntshunxeka. Hi nkarhi lowu, ti bolts tifanele kuva ti “hot-tightened”, naswona aswi fanelangi ku endla hot-tightening eka xiyimo lexi pfalekeke hiku hetiseka xa valve, leswaku kuta papalatiwa leswaku nsinya wa valve wunga fa naswona switika ku wu pfula endzhaku.

2Hi nguva leyi mahiselo yanga ehansi ka 0°C, nyikela nyingiso eka ku pfula pulagi ya xitulu xa valve eka ti valve leti yimisaka steam na mati ku susa mati lawa yanga hlangana na mati lawa ya hlengeletiweke, leswaku uta papalata ku titimela naku pandzeka ka valve. Nyikela nyingiso eka ku hlayisiwa ka kuhisa eka ti valve letinga herisaka ku hlengeletiwa ka mati na ti valve leti tirhaka hiku tsekatseka.

3 Nsinya wo paka a wu fanelanga ku tshikileriwa swinene, naswona ku tirha loku cinca-cincaka ka nsinya wa valve ku fanele ku hlula (swi hoxile ku ehleketa leswaku loko ndzhuti wo paka wu tiyile, swa antswa, swi ta hatlisisa ku onhaka ka nsinya wa valve naswona swi ta engetela torque yo tirha). Ehansi ka xiyimo xaku pfumaleka ka magoza yo sirhelela, ku paka a ku nge cinciwi kumbe ku engeteriwa ehansi ka ntshikelelo.

4Hi nkarhi wa vuhandzuri, swiendlakalo leswi nga tolovelekangiki leswi kumekaka hi ku yingisela, ku nun’hwetela, ku vona, ku khumba, na swin’wana swi fanele ku kamberiwa hi vukheta hikwalaho ka swivangelo, naswona leswi nga swa swintshuxo swa swona swi fanele ku herisiwa hi ku famba ka nkarhi;

5 Mufambisi u fanele ku va na buku yo hlawuleka ya swiviko kumbe buku ya tirhekhodo, naswona a nyikela nyingiso ku rhekhoda matirhelo ya tivalvu to hambana, ngopfungopfu tivalvu tin’wana ta nkoka, tivalvu ta mahiselo ya le henhla na ntshikelelo wa le henhla na tivalvu to hlawuleka, ku katsa na switirhisiwa swa tona swo hundzisela. Swifanele ku tekeriwa enhlokweni ku tsandzeka, vutshunguri, swiphemu swo cinca, na swin’wana, switirhisiwa leswi i swa nkoka eka mutirhisi hi yexe, vatirhi vo lunghisa na muendli. Simeka log yo hlawuleka leyi nga na vutihlamuleri lebyi nga erivaleni, leswi vuyerisaka ku tiyisisa vufambisi.