Umsebenzi wesihlalo sevalvu: usetyenziselwa ukuxhasa indawo evaliweyo ngokupheleleyo yesiseko sevalvu nokwenza isibini sokutywina.

Umsebenzi weDiski: Idiski – idiski engqukuva ephakamisa kakhulu kwaye inciphisa ukuhla koxinzelelo. Iqiniswe ukuze isebenzise ixesha elide.

Indima yesiseko sevalvu: Isiseko sevalvu kuxinzeleloivalvu yokunciphisayenye yezona zinto ziphambili zokulawula uxinzelelo.

Iimpawu zesihlalo sevalvu: Ukugqwala nokungagugi; ​​Ixesha elide lokusebenza; Ukuxhathisa uxinzelelo oluphezulu; Ukuchaneka okuphezulu; Ukuxhathisa okugqwesileyo kwimithwalo yokutyhala kunye namaqondo obushushu aphezulu; Ifanelekile kwiimoto ezininzi zabakhweli, iilori ezikhaphukhaphu nezinzima, iinjini zedizili kunye neenjini zemizi-mveliso ezimileyo.

Iimpawu zediski yevalvu: Inomsebenzi wokubeka indawo ohlengahlengiswayo ukuthintela udonga lwegobolondo lomzimba wevalvu ukuba lungangeni. Ivalvu yokujonga ipleyiti yebhabhathane yeclamshell ekhethekileyo inephini yehinge yeplate yebhabhathane eyakhelwe ngaphakathi, engasusi nje kuphela ithuba lokuba iphini yehinge ibhoboze indlu yevalvu ukuze ivuza, kodwa ikwayenza kube lula ukuyilungisa isihlalo sevalvu kuba ibracket esetyenzisiweyo ihambelana nomphezulu wesihlalo sevalvu. Lungisa idiski/isihlalo.

Iimpawu ze-valve core: Xa i-rounding core ijikeleza, ifolokhwe esezantsi kwe-rounding core iqhuba i-moving valve plate ukuba ijikeleze, ukuze umngxuma wamanzi ophuma kwi-moving valve plate uhambelane nomngxuma wamanzi ophuma kwi-moving valve plate. Ukuphuma kwe-through-hole outflow, olu yilo lusetyenziswa kakhulu kwiindawo zokukhupha amanzi.

Isishwankathelo sesihlalo sevalvu: Sebenzisa izinto zokutywina ezilastiki kunye ne-actuator thrust encinci ukuze ufumane isitywino esingangeni moya. Uxinzelelo lokutywina lokucinezela isihlalo sevalvu lubangela ukuba izinto zijijeke kwaye zicinezeleke kumphezulu orhabaxa wecandelo lesinyithi elidibanayo ukuze kufakwe nakuphi na ukuvuza. Ukuvuleka kwezinto ukuya kulwelo sisiseko sokuvuza okuncinci.

Isishwankathelo sediski yevalvu: iringi yokutywina idiski yohlobo lwesiketi. Imodeli yokusetyenziswa ityhila iringi yokutywina idiski yevalvu yohlobo lwesiketi. Uphawu lwayo lolwakhiwo kukuba isitywino phakathi kweringi yokutywina kunye nomzimba wediski yevalvu sisitywino somgca esimacala amabini. Icandelo elide kwindawo yokutywina phakathi kweringi yokutywina kunye nomzimba wediski yevalvu yindawo yeplane yetrapezoidal.

Isishwankathelo se-valve core: I-valve core yinxalenye ye-valve esebenzisa intshukumo yomzimba we-valve ukufezekisa imisebenzi esisiseko yokulawula indlela, ulawulo loxinzelelo okanye ulawulo lokuhamba kwamanzi.

Inxalenye yobuso obususwayo kwivalvu isetyenziselwa ukuxhasa indawo evaliweyo ngokupheleleyo yesiseko sevalvu kwaye yenze isibini sokutywina. Ngokubanzi, ububanzi besihlalo sevalvu bububanzi bokuhamba okuphezulu kwevalvu. Umzekelo, iivalvu zebhabhathane ziza ngezixhobo ezahlukeneyo zesihlalo. Izinto zesihlalo sevalvu zinokwenziwa ngezinto ezahlukeneyo zerabha, iplastiki, kunye nesinyithi, ezifana nezi: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE, njl.

Iimpawu zezinto ekufuneka ziqwalaselwe xa ukhetha isihlalo sevalvu ethambileyo zezi:
1) Ukuhambelana kolwelo, kubandakanya ukudumba, ukulahleka kobulukhuni, ukungena kwamanzi kunye nokuwohloka;
2) Ubulukhuni;
3) Ukuguqulwa okungapheliyo;
4) Izinga lokubuyisela emva kokususa umthwalo;
5) Amandla okuxinana nokucinezela;
6) Ukuguquka kwesakhiwo ngaphambi kokuqhekeka;
7) Imodulus ethambileyo.

Idiski

Idiski yevalvu yivalvu eyintloko, enye yezona ndawo ziphambili zevalvu. Ithwala ngokuthe ngqo uxinzelelo oluphakathi kwivalvu. Izixhobo ezisetyenziswayo mazihambelane nemigaqo "yoHlobo loXinzelelo lweValve kunye noBushushu".

Izinto ezisetyenziswa rhoqo ziquka ezi zilandelayo:
1. Intsimbi engwevu: Intsimbi engwevu ifanelekile emanzini, ngomphunga, emoyeni, kwigesi, kwioyile nakwezinye izinto ezinoxinzelelo oluqhelekileyo lwe-PN ≤ 1.0MPa kunye nobushushu obuphakathi kwe--10°C ukuya kwi-200°C. Iindidi zentsimbi engwevu ezisetyenziswa rhoqo zezi: HT200, HT250, HT300, kunye ne-HT350.
2. Isinyithi esithambileyo: sifanelekile emanzini, ngomphunga, emoyeni nakwi-oyile enoxinzelelo oluqhelekileyo lwe-PN≤2.5MPa kunye nobushushu obuyi--30~300℃. Iindidi ezisetyenziswa rhoqo ziquka: KTH300-06, KTH330-08, KTH350-10.
3. I-Ductile iron: ifanelekile emanzini, ngomphunga, emoyeni, kwioyile nakwezinye izinto ezisebenzisa i-PN≤4.0MPa kunye nobushushu obuyi -30~350℃. Iindidi ezisetyenziswa rhoqo ziquka: QT400-15, QT450-10, QT500-7.
Ngenxa yenqanaba lobuchwephesha basekhaya langoku, iifektri ezahlukeneyo azilingani, kwaye ukuhlolwa kwabasebenzisi kudla ngokuba neengxaki. Ngokusekelwe kumava, kucetyiswa ukuba i-PN≤2.5MPa kunye nezinto zevalvu kufuneka zibe yintsimbi ukuqinisekisa ukhuseleko.
4. Isinyithi esithambileyo sesilicon esine-asidi ephezulu: sifanelekile kwi-media erhabaxa enoxinzelelo oluqhelekileyo lwe-PN ≤ 0.25MPa kunye nobushushu obungaphantsi kwe-120°C.
5. Intsimbi yekhabhoni: ifanelekile kwiindawo ezifana namanzi, umphunga, umoya, ihydrogen, iammonia, initrogen kunye neemveliso zepetroleum ezinoxinzelelo oluqhelekileyo lwe-PN ≤ 32.0MPa kunye nobushushu obuyi--30 ~ 425°C. Iindidi ezisetyenziswa rhoqo ziquka i-WC1, i-WCB, i-ZG25, intsimbi ekumgangatho ophezulu eyi-20, 25, 30 kunye nentsimbi yesakhiwo esingenamthungo eyi-16Mn.
6. I-alloy yekopolo: ifanelekile emanzini, emanzini olwandle, kwioksijini, emoyeni, kwioyile nakwezinye izinto ezidityanisiweyo ezine-PN≤2.5MPa, kunye ne-steam media enobushushu obuyi--40~250℃. Iindidi ezisetyenziswa rhoqo ziquka i-ZGnSn10Zn2 (ithusi letin), i-H62, i-Hpb59-1 (ithusi), i-QAZ19-2, i-QA19-4 (ithusi le-aluminium).
7. Ubhedu olunobushushu obuphezulu: lufanelekile kwiimveliso zomphunga kunye nepetroleum ezinoxinzelelo oluqhelekileyo lwe-PN≤17.0MPA kunye nobushushu obuyi-≤570℃. Iindidi ezisetyenziswa rhoqo ziquka i-ZGCr5Mo, 1Cr5M0, ZG20CrMoV, ZG15Gr1Mo1V, 12CrMoV, WC6, WC9 kunye nezinye iindidi. Ukhetho oluthile kufuneka luhambelane noxinzelelo lwevalvu kunye nemigangatho yobushushu.
8. Intsimbi enobushushu obuphantsi, efanelekileyo kwi-nominal pressure PN≤6.4Mpa, ubushushu ≥-196℃ ethylene, propylene, igesi yendalo enyibilikisiweyo, i-nitrogen engamanzi kunye nezinye izinto ezisetyenziswa rhoqo (iimpawu ezisetyenziswa rhoqo) ziquka i-ZG1Cr18Ni9, 0Cr18Ni9, 1Cr18Ni9Ti, ZG0Cr18Ni9 9. Intsimbi engatyiwayo enganyangekiyo yi-asidi, efanelekileyo kwi-nominal pressure PN≤6.4Mpa, ubushushu ≤200℃ nitric acid, i-acetic acid kunye nezinye izinto ezisetyenziswa rhoqo, iimpawu ezisetyenziswa rhoqo yi-ZG0Cr18Ni9Ti, ZG0Cr18Ni10 , ZG0Cr18Ni12Mo2Ti, ZG1Cr18Ni12Mo2Ti

umongo wevalvu
I-valve core yinxalenye yevalve esebenzisa intshukumo yayo ukufezekisa imisebenzi esisiseko yokulawula indlela, ulawulo loxinzelelo okanye ulawulo lokuhamba kwamanzi.

Ulwahlulo
Ngokwendlela yokuhamba, yahlulwe ngohlobo lokujikeleza (45°, 90°, 180°, 360°) kunye nohlobo loguqulelo (olujikelezayo, oluya kwicala).
Ngokwemilo, ngokubanzi ingahlulwa ibe yi-spherical (i-ball valve), i-conical (i-plug valve), i-disc (i-butterfly valve, i-gate valve), i-dome-shape (i-stop valve, i-check valve) kunye ne-cylindrical (i-reversering valve).
Ngokwesiqhelo zenziwe ngentsimbi yobhedu okanye intsimbi engatyiwayo, kukwakho neeplastiki, inylon, iiseramikhi, iglasi, njl.
I-valve core kwi-valve yokunciphisa uxinzelelo yenye yezona zinto ziphambili zokulawula uxinzelelo.