Ama-valve okuhlola ama-waferaziwa nangokuthi ama-backflow valves, ama-backstop valves, nama-backpressure valves.Lezi zinhlobo zama-valve zivuleka ngokuzenzakalelayo futhi zivalwe ngamandla akhiqizwa ukugeleza kwe-medium ngokwayo epayipini, eyingxenye ye-automatic valve.
I-valve yokuhlola iwukuthembela ekugelezeni kwe-medium ngokwayo futhi ivula ngokuzenzakalelayo futhi ivale i-valve flap, esetshenziselwa ukuvimbela i-valve yokubuyela emuva ephakathi, eyaziwa nangokuthi i-valve yokuhlola, i-valve yokuhlola, i-backflow valve, ne-valve yokucindezela emuva.I-valve yokuhlola iyingxenye ye-valve ezenzakalelayo, indima yayo eyinhloko ukuvimbela ukubuyela emuva kwemidiya, ukuvimbela ipompo kanye nokushayela ukuguqulwa kwemoto, kanye nokukhishwa kwemidiya yesitsha.Amavalvu okuhlola angasetshenziswa futhi ukunikeza ingcindezi ingase ikhuphuke ibe ngaphezu kokucindezela kwesistimu yesistimu eyisizayo ukuze kuhlinzekwe ipayipi lokuhlinzeka.I-valve yokuhlola ingahlukaniswa ibe i-valve yokuhlola i-swing (ngokusho phakathi nendawo yokujikeleza kwamandla adonsela phansi) kanye ne-valve yokuhlola i-lift (ehamba eduze kwe-axis).
Okokuqala, ukusetshenziswa kwe-clip-on isheke i-valve yokuhlola i-valve efakwe ohlelweni lwamapayipi, indima yayo eyinhloko ukuvimbela ukubuyela emuva kwabezindaba, i-valve yokuhlola uhlobo lwe-valve othomathikhi ethembele ekucindezelweni kwabezindaba ukuvula nokuvala.Ivalvu yokuhlola i-clamp ifanele ukucindezela okuzisholo okungu-PN1.0MPa ~ 42.0MPa, Class150 ~ 25000, ububanzi obuncane be-DN15 ~ 1200mm, NPS1/2 ~ 48, izinga lokushisa elisebenzayo -196 ~ 540 ℃ lamapayipi ahlukahlukene, asetshenziselwa ukuvimbela ukubuya kwemidiya.Ngokukhetha izinto ezahlukene, ingasetshenziswa emanzini, umusi, amafutha, i-nitric acid, i-acetic acid, imidiya eqinile ye-oxidizing kanye ne-uric acid neminye imidiya.
Izinto eziyinhloko ze-valve yokuhlola i-wafer yi-carbon steel, i-low-temperature steel, i-duplex steel (SS2205/SS2507), i-titanium alloy, i-aluminium bronze, i-Inconel, i-SS304, i-SS304L, i-SS316, i-SS316L, insimbi ye-chrome-molybdenum, i-Monel (400/ 500), 20# ingxubevange, Hastelloy nezinye izinto zensimbi.
Okwesithathu, amazinga kanye nezinkambiso zevalvu yokuhlola isiluphu
Idizayini:API594,API6D,JB/T89372,
Ubude bobuso nobuso:API594,API6D,DIN3202,JB/T89373,
Izinga lokucindezela kanye nezinga lokushisa: ANSI B16.34, DIN2401, GB/T9124, HG20604, HG20625, SH3406, JB/T744,
Izinga lokuhlola nokuhlola: API598, JB/T90925
Piping Flanges:JB/T74~90,GB/T9112-9124,HG20592~20635,SH3406,ANSI B 16.5,DIN2543-2548,GB/T13402,API605,ASMEB16.47
Okwesine, izici zesakhiwo se-valve yokuhlola i-pinch
1.Ubude besakhiwo esifushane, ubude besakhiwo saso buyi-1/4~1/8 kuphela yevalve yokuhlola i-swing flange.
2. ivolumu encane, isisindo esincane, isisindo sayo kuphela i-valve yokuhlola ye-flange yendabuko 1/4 ~ 1/2
3. I-valve flap ivala ngokushesha, ukucindezela kwesando samanzi kuncane
4. Amapayipi avundlile noma aqondile angasetshenziswa, kulula ukuyifaka
5. Indlela yokugeleza ebushelelezi, ukumelana noketshezi oluphansi
6.Isenzo esibucayi, ukusebenza kahle kokuvala uphawu
7.I-Disc stroke ifushane, umthelela wokuvala mncane
I-8.Isakhiwo sonke silula futhi sihlangene, futhi isimo sihle
9. Impilo ende yesevisi nokusebenza okuthembekile
amahlanu.Ukusebenza kokuvala kwevalvu yokuhlola iwafa Ivalvu yokuhlola iwafa evalwe ngokuthambile ingafinyelela ukuvuza okunguziro, kodwa ivalve yokuhlola isiluphala esivalwe kanzima ayiyona ivalvu evuza uziro.Inezinga elithile lokuvuza.Ngokwezinga lokuhlola le-API598, kuvalvu yokuhlola enesihlalo sensimbi, ngosayizi we-DN100, izinga lokuvuza kwe-liquid ngomzuzu liyi-12CC.
