Deng ordinaryung gate valves keraklan mangabaldugan lang hard-sealed gate valves. Ing artikulung ayni mag-analisa yang masalese keng pamiyaliwa da reng soft-sealed gate valves ampo reng ordinaryung gate valves. Nung kuntentu ka keng pakibat, dinan meng thumbs up ing VTON.
Ing simpling salita, deng elastic soft-sealed gate valves ila reng seal pilatan da reng metal ampo reng ali metal, antimo ing nylon\tetrafluoroethylene, ampo deng hard-sealed gate valves ila reng seal pilatan da reng metal ampo metal;
Deng soft-sealed gate valves ampo reng hard-sealed gate valves ila reng sealing materials ning valve seat. Deng matigas a seal eksaktu lang me-machine kareng materyales ning valve seat para makasiguradung makatuglung la keng valve core (ball), keraklan stainless steel ampo copper. Deng soft seals mangabaldugan la kareng sealing materials a maka-embed keng valve seat bilang non-metallic a materyales. Uling deng soft seal materials atin lang elasticity, ing processing accuracy requirements mas mababa ya kesa kareng hard seals. Tuturing mi la reng katangian ning VTON para ilarawan ing pamiyaliwa da reng imported soft-sealed gate valves ampo reng imported hard-sealed gate valves.
1. Sealing materials
1. Ing sealing materials da reng adwa miyayaliwa la.Soft-sealed gate valveskeraklan gawa la keng goma o polytetrafluoroethylene. Deng hard-sealed gate valves gawa la keng metal antimo ing stainless steel.
2. Soft seal: Ing seal pair gawa ya keng metal a materyales keng metung a gilid ampo elastic non-metal a materyales keng aliwang gilid, na awsan dang "soft seal". Ing klasing seal ayni atin yang masanting a pamag-seal, pero ali ya resistant keng matas a temperatura, madali yang isulud, ampo atin yang e masanting a mechanical properties. Alimbawa: goma a bakal; steel tetrafluoroethylene, atbp. Alimbawa, ing imported a elastic seat sealgate valve ning VTON keraklan gagamitan de keng temperaturang mas mababa pa keng 100°C, at keraklan gagamitan de para keng danum a temperatura ning silid.
3. Hard seal: Ing seal pair gawa ya keng metal o aliwang mas matigas a materyales keng adwa nang gilid, na awsan dang "hard seal". Ing klasing seal ayni atin yang e masanting a pamag-seal, pero e ya makayabut keng matas a temperatura, wear ampo atin yang masanting a mechanical properties. Alimbawa: bakal bakal; bakal a tansu; bakal a grafit; bakal alloy steel; (ing bakal keni malyari ya namang cast iron, cast steel, alloy steel malyari ya namang surfacing, sprayed alloy). Alimbawa, ing imported stainless steel gate valve ning VTON malyari yang gamitan para keng steam, gas, oil ampo danum, atbp.
2. Teknolohiya ning konstruksyun
Ing mission environment ning industriya ning makinarya komplikadu ya, keraklan kareti ultra-low temperature ampo low pressure, a maki maragul a resistensya ampo masikan a corrosiveness ning medium. Ngeni ing teknolohiya mipaunlad ne, inya pin deng hard-sealed gate valves mipalaganap la.
Ing relasyun ning katigasan da reng metal dapat yang ikonsidera. Ing tutu na niti, ing hard-sealed gate valve parehu ya keng soft-sealed uling metung yang seal pilatan da reng metal. Ing katawan ning balbula kailangan yang maging matibe, at ing platu ning balbula ampo ing luklukan ning balbula kailangan yang patuloy a gilingan para mika seal. Ing siklo ning pamaglalang kareng hard-sealed gate valves makaba ya.
3. Gamitan ing kundisyun
Sealing effect Deng soft seals malyari lang mika zero leakage, kabang deng hard seals malyari lang matas o mababa agpang kareng requirements;
Deng malambut a seal kailangan lang e malyaring api, at ing leakage malyari ya keng matas a temperatura, kabang deng hard seal e la mag leak. Deng emergency shut-off valve hard seals malyari lang gamitan keng matas a pressure, kabang deng soft seals ali la malyaring gamitan. Ngening panaun ayni, kailangan ing hard-sealed gate valve ning VTON.
E la dapat gamitan deng malambut a seal kareng mapilan a corrosive media, at deng matigas a seal malyari lang gamitan;
4. Kondisyun ning pamagobra
Deng matibe seal malyari lang matas o mababa agpang kareng requirements; deng malambut a seal dapat e la malyaring api, at deng malambut a seal malyari lang mika matas a indibidwal a seal. Uling keng ultra-low a temperatura, deng malambut a seal mag leak la, kabang deng hard seal ala lang problema; deng matigas a seal keraklan makayatu la kareng matas a pressure, kabang deng malambut a seal e la makayabut. Alimbawa, deng imported forged steel gate valves ning VTON gagamit lang hard seals, at ing pressure malyari yang miras 32Mpa o 2500LB; deng soft seals e la malyaring gamitan kareng mapilan a lugal pauli ning dagus ning medium, antimo reng mapilan a corrosive media); katataulian, mas maulaga la reng hard seal valves kesa kareng soft seals. Para keng construction, ali ya maragul ing pamiyaliwa da reng adwang areni, ing peka pamiyaliwa yapin ing valve seat, ing soft seal ali ya metal, ampo ing hard seal metal ya
V. Pamili kareng kasangkapan
Ing pamili ning malambut ampo matigas a sealgate valveskeraklan makabasi ya keng prosesu ning medium, temperatura ampo pressure. Keraklan, nung ing medium atin yang solidung particles o atin yang wear o ing temperatura mas matas ya keng 200 degrees, mas masanting ing gamitan ing hard seals. Alimbawa, ing matas a temperatura ning singaw keraklan 180-350°C ya, inya kailangan yang mamili ing hard seal gate valve.
6. pamiyaliwa ning presyu ampo gastusan
Para keng parehung kalibre, pressure ampo materyales, imported hard-sealedgate valvesmas mamasa la kesa kareng imported a soft-sealed gate valves; alimbawa, ing DN100 imported cast steel gate valve ning VTON 40% yang mas mamasa kesa keng DN100 imported cast steel soft-sealed gate valve; nung pareung hard-sealed gate valves ampo soft-sealed gate valves malyari lang gamitan keng obra, nung isipan ing gastus, subukan mung pilinan ing imported soft-sealed gate valves.
7. Pamiyaliwa keng bie ning serbisyu
Ing soft seal mangabaldugan yang metung a gilid ning seal pair gawa ya keng materyal a ating mababang katigasan. Keraklan, ing soft seal seal gawa ya keng e metal a materyales a maki sikanan, katatagan ampo temperature resistance. Atin yang masanting a sealing performance at ala yang leakage, pero ing bie na ampo ing kayang adaptability keng temperatura medyu mababa ya. Deng hard seals gawa la keng metal ampo atin lang medyu mababa a sealing performance, agyang deng mapilan a manufacturer sasabyan da na ala lang leakage.
Ing bentahe da reng malambut a seal yapin ing masanting a pamag-seal, at ing disbentaha yapin ing madali yang luma, masira at masira, ampo makuyad a bie ning serbisyu. Deng matibe seal atin lang makabang bie, pero ing karelang sealing performance medyu mababa ya kumpara kareng malambut a seal. Deting adwang uri da reng seal malyari lang mipagkumpletu. keng pamag-seal, mas masanting la reng malambut a seal, pero ngeni ing pamag-seal kareng hard seal malyari na namang akit ing katumbas a requirements.
Deng malambut a seal e la makatupad kareng kailangan a prosesu para kareng mapilan a corrosive a materyales, pero deng matigas a seal agyu dang aluswan ining problema!
Deting adwang uri da reng seal malyari lang mipagkumpletu. keng pamag-seal, mas masanting la reng malambut a seal, pero ngeni ing pamag-seal kareng matibe seal malyari na namang akit ing katumbas a requirements!
Ing bentahe da reng malambut a seal yapin ing masanting a pamag-seal, at ing disbentaha yapin ing madali yang luma, masira at masira, ampo makuyad a bie ning serbisyu.
Deng matibe seal atin lang makabang bie, pero ing seal mas malala ya kesa kareng malambut a seal.
Oras ning pamagpost: Dec-14-2024
