Liphapha tse tloaelehileng tsa Gate hangata li bua ka li-valves tse nang le li-heke tse tiisitsoeng ka thata. Sengoliloeng sena se hlahloba ka botlalo phapang pakeng tsa li-valves tse nang le matla a loantšang moea o nang le li-heke tse tiisitsoeng le likokoana-hloko tse tloaelehileng. Haeba u khotsofetse ke karabo, ka kopo fa vton ho phatloha.
Ka mantsoe a bonolo feela, li-valves tse nang le li-heke tse nang le moea o matla
Soft-sealed gate valves and hard-sealed gate valves refer to the sealing materials of the valve seat. Limite tse thata li entsoe hantle ka lisebelisoa tsa li-valve tse hlalosang ho nepahala tse tsamaeang le li-core tse tšoanang, ka kakaretso le koporo e se nang letho. Litiiso tse bonolo li bua ka lisebelisoa tse hloiselitsoeng tse kentsoeng setulong sa Valve e le lisebelisoa tse senang metallic. Hobane lisebelisoa tsa tiiso tse bonolo li na le litlhokahalo tse itseng, litlhoko tsa nepo tsa ts'ebetso ea ts'ebetso li tlase ho feta litiiso tse thata. Re bua ka litšobotsi tsa Vton ho hlalosa phapang lipakeng tsa li-valves tse nang le matla a ho kenngwa ka mokhoa o hlakileng oa heke le li-vake tse kentsoeng ka thata.
Li-valve tsa heke tse nang le matlaare generally made of rubber or polytetrafluoroethylene. Li-vala li le li-valve tse nang le li-Gate tse thata li entsoe ka libaka tse kang tšepe e se nang mabe.
2. Sekhahla se bonolo: Sealrai sa tiiso se entsoe ka thepa ea tšepe ka lehlakoreng le leng le e sa tloaelehang e elang ka mahlakoreng a tšepe ka lehlakoreng le leng, e bitsoang "tiiso e bonolo". Tiiso ea mofuta ona e na le ts'ebetso e ntle ea ho tiisa, empa ha e lumellane le mocheso o phahameng, ho ba bonolo ebile o na le thepa e fosahetseng. Mohlala: Rabara ea tšepe; steel tetrafluoroethylene, etc. For example, the imported elastic seat sealZate Valv
3. Tiiso e thata: Literako tsa tiiso li entsoe ka thepa ea tšepe kapa thepa e meng e mang e thata mahlakore ka bobeli, e bitsoang "tiiso e thata". Tiiso ea mofuta ona e na le ts'ebetso e matla ea ho sebetsana le eona, empa e hanana le mocheso o phahameng, roala 'me o na le thepa e ntle. For example: steel steel; steel copper; graphite ea tšepe; steel alloy steel; (the steel here may also be cast iron, cast steel, alloy steel may also be surfacing, sprayed alloy). For example, the imported stainless steel gate valve of VTON can be used for steam, gas, oil and water, etc.
2. Mahlale a kaho
Tikoloho ea Khoebo ea Mechini e nang le Mechine e rarahane, e mengata ea khatello e tlase le khatello e tlase, ka ho hanyetsa haholo le ho silafala ho matla le ho silafatsa matla. Now the technology has improved, so that hard-sealed gate valves have been widely promoted.
The hardness relationship between metals should be taken into account. In fact, the hard-sealed gate valve is the same as the soft-sealed one because it is a seal between metals. Sebele sa bohlokoa se lokela ho thatafala, 'me poleiti ea Valve le setulo sa valve se tlameha ho ba sebaka se tsoelang pele ho tiisoa. The production cycle of hard-sealed gate valves is long.
Ho netefatsa litlamorao tsa tiises ho ka fihlela peo e matla, ha litiiso tse thata li ka phahama kapa ka tlase ho latela litlhoko;
Ho hlokahala hore li tumello tse bonolo li hloka mollo, 'me ho tlosoa ka lithemparetjha tse phahameng, ha li-tie tse kholo li ke ke tsa tsoa. Emergency shut-off valve hard seals can be used under high pressure, while soft seals cannot be used. At this time, VTON's hard-sealed gate valve is needed.
Litiiso tse bonolo ha lia lokela ho sebelisoa mecheng e meng ea mefokolo, 'me li-tirals tse thata li ka sebelisoa;
Litiiso tse thata li ka ba holimo kapa li tlase ho latela litlhoko; Litiiso tse bonolo li lokela ho ba mollo o nang le mollo, le litiiso tse bonolo li ka fihlela litiiso tse phahameng haholo. Hobane ha ho na le mocheso o tlase, litiiso tse bonolo li tla tsoa, ha litiiso tse thata ha li na bothata bona; hard seals can generally withstand very high pressures, while soft seals cannot. For example, the imported forged steel gate valves of VTON use hard seals, and the pressure can reach 32Mpa or 2500LB; soft seals cannot be used in some places due to the flow of the medium, such as some corrosive media); Qetellong, li-valve tse thata tsa tiiso li theko e phahameng haholo ho feta litiiso tse bonolo. Ha e le kaho, phapang pakeng tsa tse peli ha e kholo, phapang e kholo ke setulo se bonolo, tiiso e bonolo ha e na tšepe, 'me tiiso e thata ke tšepe
V. Lisebelisoa tsa lisebelisoa
Khetho ea tiiso e bonolo le e thatali-valves tsa hetee ipapisitse le ts'ebetso e bohareng, mocheso le khatello. Ka kakaretso, haeba ho mahareng ho na le likaroloana tse tiileng kapa ho roala kapa mocheso o phahame ho feta likhato tse 200, ho molemo ho sebelisa litiiso tse thata. For example, high-temperature steam is generally around 180-350℃, so a hard seal gate valve must be selected.
6. Phapang ka theko le litšenyehelo
Bakeng sa caliber e tšoanang, khatello le boitsebiso boo, ba butsoitsoeng ka thatali-valves tsa heteli theko e phahameng haholo ho feta li-valves tse katiloeng ka mokhoa o hlakileng oa heke. Ka mohlala, VEN100 ea Steel Gate e kentsoeng ka eona e 40% e theko e phahameng ho feta ea Dn100 e kentsoeng e nang le lehata le tiisitsoeng e tiisitsoeng e tiisitsoeng ke steel e nang le moea o mongata o tiisitsoeng. Haeba li-valves tse nang le li-heke tse thata le li-vake tse matla tse ka sebelisoang ka thata li ka sebelisoa tlasa maemo a ho sebetsa, ha li nahana ka litšenyehelo tsa ho kenella ka bonolo.
Soft seal means that one side of the seal pair is made of a material with relatively low hardness. Generally speaking, the soft seal seat is made of non-metallic materials with certain strength, hardness and temperature resistance. E na le ts'ebetso e ntle ea ho tiisa 'me e ka fihlela pero ho tloha, empa bophelo ba eona le maemo a eona ho mafutsana ha a futsanehile. Limite tse thata li entsoe ka tšepe 'me li na le ts'ebetso e litšila e tsitsang, leha bahlahisi ba bang ba bolela hore ba ka fihlela pero lesuage.
The advantage of soft seals is good sealing performance, and the disadvantage is easy aging, wear and tear, and short service life. Lithaele tse thata li na le bophelo bo bolelele ba tšebeletso, empa ts'ebetso ea bona ea ho tiisa hore ho na le matla a ho tiisa ha hoa bapisoa le litiiso tse bonolo. Mefuta ena e 'meli ea litiiso e ka thusana. In terms of sealing, soft seals are relatively better, but now the sealing of hard seals can also meet the corresponding requirements.
Litiiso tse bonolo li ke ke tsa fihlela litlhoko tsa ts'ebetso bakeng sa lisebelisoa tse ling tse mpe, empa li-tis tse thata li ka rarolla bothata bona!
Mefuta ena e 'meli ea litiiso e ka thusana. In terms of sealing, soft seals are relatively better, but now the sealing of hard seals can also meet the corresponding requirements!
Nako ea poso: Dec-14-2024
