Mokhoa oa ho Khetha Valve e Nepahetseng ea Sefefo bakeng sa Marine

Ho khetha e nepahetsengvalve ea sefefohobane sekepe sa hao se bohlokwa bakeng sa ho boloka polokeho le bokgoni ba ho sebetsa ha sekepe, haholoholo ho thibeleng ho kena ha metsi a lewatle nakong ya maemo a mabe a lehodimo. Mona ke dintlha tsa bohlokwa tseo o lokelang ho di nahana ha o kgetha valve e nepahetseng ya sefefo.

1. Mofuta oa Valve le Tlhophiso

Li-valve tsa sefefo li tla ka mefuta le litlhophiso tse fapaneng, e 'ngoe le e 'ngoe e loketse lits'ebetso tse itseng

• Paterone e Otlolohileng (E otlolohileng): E loketse ho kenngoa moo phaephe e tsamaeang ka ho otloloha.
• Mohlala oa Sekhutlo: E loketse liphaephe tse fetolang tsela, hangata ka sekhutlo sa likhato tse 90.

Khetha tlhophiso e tsamaellanang le moralo oa liphaephe tsa sekepe sa hau ho netefatsa ts'ebetso e ntle ka ho fetisisa.

2. Maemo a Boholo le Kgokelo

Netefatsa hore boholo ba valve bo tsamaellana le bophara ba phaephe ea hau. Boholo bo tloaelehileng bo tloha ho DN50 ho isa ho DN300. Ho feta moo, netefatsa hore likhokahano tsa flange tsa valve li tsamaisana le maemo a sistimi ea hau, joalo ka li-flange tsa PN16 kapa JIS-5K/JIS-10K.

3. Khetho ea Lintho

Lisebelisoa li lokela ho khethoa ho latela tikoloho ea ts'ebetso

• 'Mele: Tšepe e qhibilihisitsoeng kapa boronse bakeng sa ho hanyetsa mafome.
• Disiki le Sefate: Boronse kapa tšepe e sa ruseng ho mamella maemo a leoatle.
• Litiiso: NBR (Nitrile Butadiene Rubber) bakeng sa ho tiisa le ho tšoarella ka katleho.

Ho khetha thepa e nepahetseng ho ntlafatsa bolelele ba nako le ts'epo ea valve.

4. Litlhahlobo tsa Khatello le Thempereichara

Netefatsa hore likhakanyo tsa khatello le mocheso tsa valve li lumellana le litlhoko tsa sistimi ea hau. Mohlala, li-valve tse ling tsa sefefo li lekantsoe bakeng sa khatello e phahameng ea ts'ebetso ea li-bar tse 4 le mocheso o tlohang ho -10°C ho isa ho 60°C.

5. Mokhoa oa ho Koala

Hangata li-valve tsa sefefo li na le mokhoa oa ho koala ho thibela phallo ea metsi

• Lebili la letsoho le tsamaisoang ka letsoho: E dumella tshebetso ya letsoho ho bula kapa ho kwala valve ha ho hlokahala.
• Ho Kwala ka Boiketsetso: Li-valve tse ling li etselitsoe ho koala ka bohona tlas'a maemo a itseng.

Khetha mokhoa o lumellanang le likhetho tsa hau tsa ts'ebetso le melaoana ea polokeho.

6. Ho Latela Melao le Setifikeiti

Netefatsa hore valve ea sefefo e latela maemo le mangolo a indasteri ea likepe, joalo ka DIN 87101 Foromo B kapa mekhatlo e amehang ea lihlopha joalo ka Lloyd's Register kapa DNV. Ho latela melao ho tiisa hore valve e fihlela litekanyetso tsa polokeho le boleng.

7. Tlhokomelo le Teko

Khetha li-valve tse bonolo ho li hlokomela le ho li leka. Tlhokomelo ea kamehla, ho kenyeletsoa le liteko tsa hydrostatic, ea bohlokoa ho netefatsa matla a valve le ho tiea ha eona.