(1) Li-valve tse sebelisoang phaepheng ea phepelo ea metsi hangata li khethoa ho latela melao-motheo e latelang:

1. Ha bophara ba phaephe bo sa fete 50mm, valve e emisang e lokela ho sebediswa. Ha bophara ba phaephe bo feta 50mm, valve ya heke kapavalafo ea serurubelee lokela ho sebelisoa.

2. Ha ho hlokahala ho lokisa phallo le khatello ea metsi, valve e laolang le valve ea ho emisa li lokela ho sebelisoa.

3. Li-valve tsa heke li lokela ho sebelisoa bakeng sa likarolo tse hlokang khanyetso e nyane ea phallo ea metsi (joalo ka phaepheng ea ho hula pompo ea metsi).

4. Li-valve tsa heke le li-valve tsa serurubele li lokela ho sebelisoa bakeng sa likarolo tsa liphaephe moo metsi a hlokang ho phalla ka mahlakoreng a mabeli, 'me li-valve tsa ho emisa ha lia lumelloa.
5. Li-valve tsa serurubelele li-valve tsa bolo li lokela ho sebelisoa bakeng sa likarolo tse nang le sebaka se senyenyane sa ho kenya.

6. Li-valve tsa ho emisa li lokela ho sebelisoa bakeng sa likarolo tsa liphaephe tse atisang ho buloa le ho koaloa.

7. Phaephe ea ho ntša metsi ea pompo ea metsi e bophara bo boholo e lokela ho sebelisa valve ea mesebetsi e mengata

(2) Likarolo tse latelang tsa phaephe ea phepelo ea metsi li lokela ho hlomelloa ka li-valve:
1. Liphaephe tsa phepelo ea metsi libakeng tsa bolulo li kenngoa liphaepheng tsa phepelo ea metsi tsa masepala.

2. Li-node tsa marang-rang a liphaephe tsa lesale la kantle sebakeng sa bolulo li lokela ho beoa ho latela litlhoko tsa karohano. Ha karolo ea liphaephe tsa annular e le telele haholo, li-valve tsa likarolo li lokela ho kenngoa.

3. Qetello ea phala ea lekala e hokahaneng le phala e kholo ea phepelo ea metsi ea sebaka sa bolulo kapa qalo ea phala ea ntlo.

4. Liphaephe tsa malapa, limithara tsa metsi le li-risers tsa makala (tlase ho phaephe e emeng, lipheletso tse ka holimo le tse ka tlase tsa phaephe e emeng ea marang-rang a phaephe e emeng).

5. Liphaephe tse ka tlase ho kutu tsa marangrang a phaephe e potileng le liphaephe tse hokahanyang tse fetang marangrang a phaephe ea lekala.

6. Sebaka sa ho qala sa phaephe ya kabo ya metsi e hokahanyang phaephe ya ka tlung le malapa, matloana a setjhaba, jj., le sebaka sa kabo ya metsi phaepheng ya makala ya kabo 6 se bewa ha ho na le dibaka tse 3 kapa ho feta tsa kabo ya metsi.

7. Phaephe ea ho ntša metsi ea pompo ea metsi le pompo ea ho hula metsi ea pompo ea metsi e itlhomang.

8. Liphaephe tsa ho kena le tsa ho ntsha metsi le liphaephe tsa ho ntsha metsi tsa tanka ea metsi.

9. Liphaephe tsa phepelo ea metsi bakeng sa lisebelisoa (tse kang li-heater, litora tsa ho pholisa, jj.).

10. Liphaephe tsa kabo ea metsi bakeng sa lisebelisoa tsa bohloeki (tse kang matloana, li-ntlwana tsa ho ntša metsi, libaskete tsa ho hlapela, lishaoara, jj.).

11. Lisebelisoa tse ling, tse kang karolo e ka pele ea valve ea ho ntša mosi ka boiketsetso, valve ea ho fokotsa khatello, sesebelisoa sa ho tlosa hamore ea metsi, tekanyo ea khatello, sesebelisoa sa ho fafatsa, jj., karolo e ka pele le e ka morao ea valve e fokotsang khatello le sesebelisoa sa ho thibela phallo ea metsi, jj.

12. Valve ea ho ntsha metsi e lokela ho kenngoa sebakeng se tlase ka ho fetisisa sa marang-rang a liphaephe tsa phepelo ea metsi.

(3) Thevalve ea ho hlahlobaka kakaretso e lokela ho khethoa ho latela lintlha tse kang sebaka seo e kengoang ho sona, khatello ea metsi ka pel'a valve, litlhoko tsa ts'ebetso ea ho koala kamora ho koala, le boholo ba hamore ea metsi bo bakoang ke ho koala:
1. Ha khatello ea metsi ka pel'a valve e le nyane, valve ea ho hlahloba swing, valve ea ho hlahloba bolo le valve ea ho hlahloba shuttle li lokela ho khethoa.

2. Ha ho hlokahala ts'ebetso e tiileng ea ho koala kamora ho koala, ho eletsoa ho khetha valve ea ho hlahloba e nang le selemo sa ho koala.

3. Ha ho hlokahala ho fokolisa le ho kwala hamore ea metsi, ho eletsoa ho khetha valve ea ho hlahloba e koalang lerata kapele kapa valve ea ho hlahloba e koalang butle e nang le sesebelisoa sa ho daenya.

4. Disiki kapa karolo e ka hare ya valve ya ho hlahloba e lokela ho kgona ho kwala ka boiketsetso tlasa kgato ya matla a kgoheli kapa matla a selemo.

(4) Li-valve tsa ho hlahloba li lokela ho kenngoa likarolong tse latelang tsa phaephe ea phepelo ea metsi:

Phaepheng e kenang; phaepheng e kenang ka metsi ea hitara ea metsi e koetsoeng kapa lisebelisoa tsa metsi; karolong ea phaephe ea ho ntša metsi ea tanka ea metsi, tora ea metsi, le letamo le phahameng moo liphaephe tsa ho kenya le ho ntša metsi tsa phaephe ea pompo ea metsi li arolelanang phaephe e le 'ngoe.

Ela Hloko: Ha ho hlokahale ho kenya valve ea ho hlahloba karolong ea phaephe e nang le sesebelisoa sa ho thibela phallo ea phallo ea phaephe.

(5) Lisebelisoa tsa ho ntša mosi li lokela ho kenngoa likarolong tse latelang tsa phaephe ea phepelo ea metsi:

1. Bakeng sa marangrang a liphaephe tsa phepelo ea metsi a sebelisoang nako le nako, liphaephe tsa metsi tse iketsang li lokela ho kenngoa qetellong le ntlheng e phahameng ka ho fetisisa ea marangrang a liphaephe.
valve ea khase.

2. Bakeng sa libaka tse nang le liphetoho tse totobetseng le pokello ea khase marangrang a liphaephe tsa phepelo ea metsi, valve ea ho ntša mosi ka boiketsetso kapa valve ea letsoho e kentsoe ntlheng ea tlhoro ea sebaka seo bakeng sa ho ntša mosi.

3. Bakeng sa sesebelisoa sa phepelo ea metsi a khatello ea moea, ha ho sebelisoa tanka ea metsi ea khatello ea moea ea mofuta oa phepelo ea moea o iketsang, ntlha e phahameng ka ho fetisisa ea marang-rang a liphaephe tsa kabo ea metsi e lokela ho hlomelloa ka valve ea ho ntša metsi e iketsang.