1. Utloisisa Morero le Maemo a Ts'ebeliso
Pele o kgethavalve ea liphallelo tsa khatello, hlalosa ka ho hlaka hore na hobaneng le hore na e tla sebelisoa hokae. Mekhoa e fapaneng e beha litlhoko tse fapaneng ho PRV. Mabaka a bohlokoa a kenyelletsa:
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①Mofuta oa mokelikeli (mokelikeli, khase, mouoane, kapa mecha ea phatlalatso e senyang)
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②Khatello e tloaelehileng ea ts'ebetso le mocheso
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③Khatello e phahameng ka ho fetisisa e lumelletsoeng ea ho sebetsa (MAWP)
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④Maqhubu a ho feto-fetoha ha khatello
Valve e etselitsoeng tšebeletso ea mouoane, mohlala, e kanna ea se sebetse ka mokhoa o sireletsehileng lits'ebetsong tsa metsi. Ho bapisa mofuta oa valve le maemo a sebele a ts'ebetso ke motheo oa khetho e sireletsehileng.
2. Khetha Sete e Nepahetseng ea Khatello
Khatello e behiloeng e etsa qeto ea hore na valve e tla buleha neng ho imolla khatello e feteletseng. Kamehla e lokela ho ba:Ka tlase ho khatello e phahameng ka ho fetisisa e lumelletsoeng ea sistimi.Ho feta kgatello e tloaelehileng ya tshebetso ho qoba ho phahamisa dintho tse sa thabiseng.
Ka kakaretso, kgatello e behiloeng hangata e phahame ka 10–15% ho feta kgatello e tloaelehileng ya tshebetso, ho itshetlehile ka maemo le melawana ya sistimi. Kgatello e sa nepahalang ya seteishene ke e nngwe ya lisosa tse tlwaelehileng tsa ho se sebetse hantle ha PRV.
3. Khetha Mofuta o Nepahetseng oa Valve
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Li-valve tsa liphallelo tse tletseng selemo: E sebelisoa haholo, sebopeho se bonolo, se loketse lits'ebetso tse ngata tsa indasteri
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Li-valve tsa liphallelo tse tsamaisoang ke mofofisi: E loketse litsamaiso tse nang le khatello e phahameng tse nang le ts'ebetso e tsitsitseng le ho lutla ho fokolang
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Li-valve tsa liphallelo tsa mocheso: E etselitsoe ho sireletsa khahlanong le keketseho ea khatello e bakoang ke katoloso ea mocheso oa metsi
Ho utloisisa melemo le mefokolo ea mofuta o mong le o mong ho netefatsa ts'ebetso e ntle le bophelo bo bolelele ba ts'ebeletso.
4. Ela Hloko Lisebelisoa le Maemo
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①Koporo bakeng sa litsamaiso tsa metsi ka kakaretso
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②Lahlela tšepe kapa tšepe e sa ruseng bakeng sa mecha ea phatlalatso e nang le khatello e phahameng kapa e senyang
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③Litšepe tsa boronse bakeng sa lits'ebetso tsa metsing
Ho phaella moo, etsa bonnete ba hore valve e latela maemo a matjhabeng a amehang a kang ASME, API, ISO, kapa tumello ya ho arola lewatle moo ho hlokahalang.
5. Litaba tsa ho Kenya ka nepo
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①Kenya valve ka tsela e nepahetseng
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②Netefatsa hore liphaephe tsa ho kena li khutšoanyane, li otlolohile, 'me ha li na lithibelo
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③Qoba khatello e feteletseng ea mokokotlo sehokelong
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④Le ka mohla u se ke ua kenya li-valve tsa ho itšehla thajana pakeng tsa PRV le lisebelisoa tse sirelelitsoeng ntle le haeba ho lumelloa ke khoutu.
Ho kenya ka nepo ho netefatsa karabelo e potlakileng le phokotso e nepahetseng ea khatello ha ho le bohlokoa haholo.
6. Sebetsa Valve ka har'a Meeli ea Moralo oa Eona
Li-valve tsa ho fokotsa khatello ke lisebelisoa tsa polokeho, eseng li-valve tsa taolo. Qoba ho li sebelisa bakeng sa taolo ea khatello khafetsa. Ho phahamisa khafetsa kapa khafetsa ho ka lebisa ho:Ho apara setulo.Ho dutla ha metsi.Ho nepahala ho fokotsehileng ha khatello e behiloeng.
Ts'ebetso e tsitsitseng ea sistimi e atolosa bophelo ba PRV haholo 'me e boloka ts'epo ea eona.
7. Tlhahlobo le Teko ea Kamehla
Tlhahlobo le tlhokomelo ea kamehla lia hlokahala. Mekhoa e metle e kenyelletsa:
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①Litlhahlobo tsa pono tsa nako le nako bakeng sa mafome, ho dutla, kapa ho thibana
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②Teko ea ts'ebetso ho latela bohlokoa ba sistimi
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③Tlhahlobo botjha kapa ho nkela sebaka ho latela dikgothaletso tsa moetsi
Litsamaisong tse hlokolosi ka polokeho, lirekoto tsa tlhahlobo tse ngotsoeng hangata lia hlokahala ke melaoana le mekhatlo ea ho arola.
8. Nkela Li-valve tsa Botsofali kapa tse Senyehileng sebaka hang-hang
Li-valve tsa ho fokotsa khatello ha se likarolo tsa bophelo bohle. Li-spring li ka fokola, litulo li ka senyeha, 'me litiiso li ka thatafala ha nako e ntse e ea. Haeba valve e bontša matšoao a ho lutla khafetsa, ts'ebetso e sa tsitsang, kapa tšenyo ea 'mele, ho nkeloa sebaka hangata ho bolokehile ebile ho theko e tlase ho feta ho lokisoa.
Nako ea poso: Hlakola-05-2026