Ukwaziswa kwe-valve yokutywina kwe-vall

Izinto zokutywinwa kweValve yinxalenye ebalulekileyo yokutywinwa kwevali. Zithini izinto zokutywinwa kwe-valve? Siyazi ukuba i-valve yokutywina kwezinto zahlulwe zahluza zahlulahlulwe zangamacandelo amabini: isinyithi kunye nesingenzi. Oku kulandelayo yintshayelelo emfutshane kwiimeko zokusetyenziswa kwezinto ezahlukeneyo zokutywina, kunye neentlobo zexabiso eziqhelekileyo ezisetyenziswayo.

I-1. Irabha ye-synthetic

Ipropathi ebanzi yerabha yerabha yokuthetha njengokuchaswa kweoyile, ukuxhathisa ubushushu kunye nokunganyangeki kobuso kungcono kunezo zerabha yendalo. Ngokubanzi, iqondo lobushushu lerabha ye-syntiction i-t≤150 ℃, kwaye amaqondo obushushu erabha yendalo yi-T≤60 ℃ .Rubber isetyenziselwa i-valbes,irabha yerabha yeParube, i-diaphragm valves,rI-IBBRE I-BHOTTFY KORVE, rI-IBBRE I-SWION SION VOIC (Jonga i-valveves), i-phyve valve kunye nezinye iivalves ngoxinzelelo olufanelekileyo pn≤1MPA.

I-2. Nylon

I-NYLOLO ineempawu zolungelelwaniso oluncinci nolungelelwaniso oluhle kunye nokunganyangeki. I-NYLOLO isetyenziselwa i-valve yebhola kunye ne-globe valves kunye neqondo lobushushu T≤90 ℃ kunye noxinzelelo lwePN≤32MPA.

I-3. Ptfe

I-ptfe isetyenziswe ikakhulu kwi-valves,I-valves yesango, I-valve yebhola, njl. njl.

I-4. I-iron yentsimbi

I-iron yentsimbi isetyenziselwaI-Palve yesango, I-Globebli Valve, i-zulve yeplagi, njl. njl.

I-5. I-Babbitt Alloty

I-Babbitt Alloy isetyenziselwa i-Ammonia Globe Hlobe enamaqondo obushushu T-70 ~ 150 ℃ kunye noxinzelelo lwePN≤2.5MPA.

I-6. Ubhedu

Izixhobo eziqhelekileyo ze-Alfals ye-Popper ziyi-6-6-3 i-tin no-Bronze kunye ne-58-2-2 yobhedu lweManganese. Ubhedu Alloy lunokunganyange kakuhle kwaye ilungele amanzi kunye ne-steam ngeqondo lokushisa t≤200 ℃ kunye noxinzelelo lwePN≤1.6MPA. Ihlala isetyenziswa ngaphakathiI-valves yesangoIivalves,Jonga i-valveves, iplanga, njl. Njl.

I-7. I-Chrome Stainess

Amabakala asetyenziswe ngentsimbi ye-chromium engacacanga abayi-2CR13 ne-3CR13, ecinyiwe, kwaye inomvuzo, kwaye ixhathise kakuhle. Ihlala isetyenziswa kwiivalves zemidiya njengamanzi, i-steam kunye nepetroleum kunye neqondo lobushushu T≤450 ℃ kunye noxinzelelo lwePN≤32ppa.

I-8. I-Chromium-Titchlium-Titanium yeStanium

Inqanaba eliqhelekileyo le-chromium-tikel-titanium le-tikel-titanium i-1CR18NI9TI, ethi ixhathise i-corosions elungileyo, ukumelana nobushushu kunye nokuxhathisa ubushushu. Ilungele i-Steam, i-nitric acid kunye nezinye iindaba kunye nobushushu t≤600 ℃ kunye noxinzelelo olufanelekileyo pn≤6.4MPA, isetyenziselwa ivalve ye-globe, njl.

9. Intsimbi yangaphandle

Inqanaba eliqhelekileyo elisetyenziswa ngentsimbi yakwa-38Crausala, olunokuxhathisa ngokuchasene nokunganyangeki emva kokunyangwa. Iqhelekile isetyenziswa kwi-Palve yeSikhululo seSikhululo samaNkamo enamaqondo obushushu T≤540 ℃ kunye noxinzelelo olufanelekileyo pn≤10mpa.

10. Ukukhupha

Ukuqhubela phambili iinkqubo ngokuthe ngqo kumhlaba wokutywina kwi-valve yomzimba okanye umzimba we-disc, kwaye emva koko uqhuba unyango lomhlaba, umphezulu wokutywina unciphise ukunyangwa komhlaba. Isetyenziswe kwisikhululo sombane esivuthiweyo.