Kuisa chisimbiso chevhavha chikamu chakakosha chevhavha yese, chinangwa chayo chikuru ndechekudzivirira kubuda,vharafuchigaro chekuisa chisimbiso chinonziwo sealing ring, isangano rinosangana zvakananga nepakati mupombi uye rinodzivirira yepakati kuti isayerera.Kana vharuvhu iri kushandiswa, kune akasiyana midhiya mupombi, senge mvura, gasi, mafuta, corrosive media, nezvimwewo, uye zvisimbiso zvemavharuvhu akasiyana anoshandiswa munzvimbo dzakasiyana uye anogona kuchinjika kune akasiyana svikiro.
TWSValveinokuyeuchidza kuti zvinhu zvevhavha zvisimbiso zvinogona kugoverwa muzvikamu zviviri, zvinoti zvinhu zvesimbi uye zvisiri zvesimbi.Zvisimbiso zvisiri zvesimbi zvinowanzo shandiswa mumapaipi pane tembiricha yakajairwa uye kudzvanywa, nepo zvisimbiso zvesimbi zvine huwandu hwakakura hwekushandisa uye hunogona kushandiswa pakupisa kwakanyanya.high pressure.
Synthetic rabha iri nani pane rabha rechisikigo maererano neoiri kuramba, tembiricha yekudzivirira uye kushorwa.Kazhinji, tembiricha yekushanda yerabha yakagadzirwa ndeye t≤150°C, rabha rechisikigo ndit≤60°C, uye rabha inoshandiswa kuvharisa mavharuvhu eglobhu, mavharuvhu egedhi, diaphragm mavharuvhu, butterfly mavharuvhu, cheki mavharuvhu, pinch mavharuvhu uye mamwe mavharuvhu ane zita rekumanikidza PN.≤1MPa.
2. Naironi
Nylon ine hunhu hwediki friction coefficient uye yakanaka corrosion kuramba.Nylon inonyanya kushandiswa kubhora mavharuvhu uye globe mavharuvhu ane tembiricha t≤90°C uye nominal pressure PN≤32MPa.
PTFE inonyanya kushandiswa kune globe mavharuvhu, gedhi mavharuvhu, bhora mavharuvhu, etc. ane tembiricha t.≤232°C uye kumanikidzwa kwezita PN≤6.4MPa.
4. Kanda simbi
Cast iron inoshandiswa kugedhi mavharuvhu, globe mavharuvhu, plug mavharuvhu, etc. tembiricha t≤100°C, kumanikidzwa kwezita PN≤1.6MPa, gasi nemafuta.
5. Babbitt alloy
Babbitt alloy inoshandiswa kune ammonia globe valve ine tembiricha t-70 ~ 150℃uye nominal pressure PN≤2.5MPa.
6. Copper alloy
Zvishandiso zvinowanzoshandiswa zvemhangura alloys ndeye 6-6-3 tin bronze uye 58-2-2 manganese brass.Copper alloy ine zvakanaka kusapfeka uye inokodzera mvura uye chipfunga chine tembiricha t≤200℃uye nominal pressure PN≤1.6MPa.Inowanzoshandiswa mumavharuvhu egedhi, mavharuvhu epasi, cheki mavharuvhu, plug mavharuvhu, nezvimwe.
7. Chrome simbi isina tsvina
Iwo anowanzo shandiswa mamakisi echromium simbi isina simbi ndeye 2Cr13 uye 3Cr13, iyo yakadzima uye yakapfava, uye ine yakanaka corrosion resistance.Inowanzoshandiswa pamavharuvhu emvura, steam uye petroleum ine tembiricha t≤450℃uye nominal pressure PN≤32MPa.
8. Chrome-nickel-titanium simbi isina tsvina
Iyo inowanzoshandiswa giredhi yechromium-nickel-titanium simbi isina tsvina ndeye 1Cr18Ni9ti, iyo ine yakanaka yekusagadzikana, inodzivirira kuvhuvhuta uye kupisa kupisa.Inokodzera kupfutidza uye mamwe midhiya ane tembiricha t≤600°C uye kumanikidzwa kwezita PN≤6.4MPa, uye inoshandiswa kune globe mavharuvhu, bhora mavharuvhu, nezvimwewo.
9. Nitriding simbi
Iyo inowanzo shandiswa giredhi renitriding simbi ndeye 38CrMoAlA, ine yakanaka corrosion resistance uye scratch resistance mushure mekurapa carburizing.Inowanzoshandiswa mumagetsi chiteshi gedhi mavharuvhu ane tembiricha t≤540℃uye nominal pressure PN≤10MPa.
10. Boronizing
Boronizing inogadzirisa zvakananga nzvimbo yekuisa chisimbiso kubva kuzvinhu zvemuviri wevharuvhu kana disc body, uye yozoita boronizing surface treatment.Iyo yekuisa chisimbiso pane yakanaka kupfeka kusagadzikana.Yemagetsi chiteshi blowdown valve.
Kana vharuvhu iri kushandiswa, zvinhu zvinofanirwa kutariswa ndezvizvi:
1. Kuiswa chisimbiso kwevhavha kunofanira kuongororwa kuti ive nechokwadi chekuita kwayo.
2. Tarisa kana nzvimbo yekuvhara yevhavha yakasakara, uye gadzirisa kana kuitsiva maererano nemamiriro ezvinhu.
Nguva yekutumira: Jan-04-2023