Yintoni iValve yeButterfly eSebenza kakuhle?
A Ivalvu yeButterfly eSebenzayo ePhakamileyo(HPBV) sisixhobo sokulawula ukuhamba komoya esijikelezayo esijikelezayo esinediski ye-offset kunye noyilo lwesiqu—ngesiqhelo i-double offset (double eccentric) okanye i-triple offset (triple eccentric)—evumela ukutywinwa okuphezulu, i-torque ephantsi yokusebenza, kunye nobomi benkonzo ende xa kuthelekiswa neevalvu zebhabhathane ezisemgangathweni.
Ngokungafaniyo neIvalvu yebhabhathane egxile kwiConcentric, apho isiqu siphakathi emzimbeni wevalvu kwaye idiski ihlala inxibelelana rhoqo nesihlalo ngexesha lokujikeleza, uyilo olusebenza kakhulu lubandakanya i-geometric offsets enye okanye ezingaphezulu ezivumela idiski ukuba ingene kwaye iphume esihlalweni, inxibelelane nayo kuphela kwindawo evaliweyo ngokupheleleyo. Lo mahluko usisiseko wobunjineli unciphisa kakhulu ukungqubana kunye nokuguguleka, okwenza iivalvu zebhabhathane ezisebenzayo kakhulu zikwazi ukujongana noxinzelelo oluphezulu (ukuya kuthi ga kwiKlasi 600 okanye ngaphaya), amaqondo obushushu aphezulu (ukuya kuthi ga kwi-650°C ngezihlalo zesinyithi), kunye nemidiya erhabaxa okanye erhabaxa ngakumbi kunezinye ezisemgangathweni.
Kwihlabathi liphela, imakethi yeevalvu zeebhabhathane ezisebenza kakuhle ikhula ngokukhawuleza, kwaye uqikelelo lubonisa ukunyuka ukusuka kwi-USD 7.23 yeebhiliyoni ngo-2024 ukuya kwi-USD 12.94 yeebhiliyoni ngo-2031, kwi-CAGR ye-8.70%. Olu kukhula luqhutywa kukunyuka kwemfuno kuzo zonke ii-oyile negesi, ukucubungula iikhemikhali, kunye namashishini okuvelisa umbane.
Udidi lwe-API 609: Zingena phi iiValve zeButterfly ezisebenza kakuhle?
Ukuze baqonde apho iivalvu zebhabhathane ezisebenza kakuhle zimi khona, iinjineli kunye neengcali zokuthenga kufuneka ziqhelane nomgangatho olawulayo—i-API 609 (iiValuvu zebhabhathane: Uhlobo oluneflange ezimbini, uhlobo lweLug kunye nohlobo lweWafer). Lo mgangatho uchaza iindidi ezimbini ezicacileyo:
| Udidi | Uqwalaselo lweDiski | Uhlobo lweSihlalo | Uvavanyo loxinzelelo | Izicelo eziqhelekileyo |
|---|---|---|---|---|
| Udidi A | I-Concentric (i-zero offset) | Isihlalo esithambileyo nesizinzileyo (EPDM, NBR, Viton) | Uxinzelelo olusebenzayo olubandayo (CWP) — ngesiqhelo ukuya kuthi ga kwiKlasi ye-150 | Amanzi, umoya, inkonzo yombane enoxinzelelo oluphantsi |
| Udidi B | I-Eccentric (i-offset ephindwe kabini okanye kathathu) | I-PTFE/RPTFE, elaminethiweyo, okanye isinyithi-esivela kwisinyithi | Iklasi ye-ASME 150/300/600 kunye nomlinganiselo wobushushu boxinzelelo | Iimveliso zolwelo, umphunga, iihydrocarbon, inkonzo yobushushu obuphezulu |
Udidi B luhambelana ngqo neevalvu zebhabhathane ezisebenza kakuhle. I-API 609 ithi iivalvu zeCandelo B “zinesihlalo esichaseneyo kwaye zinokwakheka kwediski engaqhelekanga okanye engqongqo” kwaye zilinganiswe nge-ASME Class kunye nobushushu boxinzelelo.
Umahluko ophambili kukuba iivalvu zeCandelo A zilinganiswa ngumvelisi kuxinzelelo olusebenzayo olubandayo kuphela, ngelixa iivalvu zeCandelo B zilinganiswa ngokupheleleyo kuxinzelelo kunye nobushushu ngokwe-ASME B16.34. Kwiinjineli ezichaza ivalvu yayo nayiphi na inkonzo yenkqubo engaphaya kwamanzi okanye umoya ongqongileyo, uCandelo B (ukusebenza okuphezulu) lukhetho olufanelekileyo.
Uyilo lweValve yeButterfly eSebenza ngokuPhezulu: Ukuqonda uMgaqo we-Offset
Iidizayini ezimbini eziphambili zentsebenzo ephezulu
I-Double Offset (i-Double Eccentric) - Isiseko
Uyilo lwe-double offset—ngamanye amaxesha olubizwa ngokuba yi-"high performance butterfly valve"—luquka iindlela ezimbini ezahlukeneyo zokulungisa:
- I-Offset 1: I-axis yeshaft ibekwe ngasemva kweplani yokutywina idiski, kude nomgca ophakathi wesihlalo.
- I-Offset 2: I-axis ye-shaft isuswe kumgca ophakathi we-pipe bore.
Ezi offsets zimbini zenza isenzo sekhamera ngexesha lokujikeleza. Xa ivalvu iqala ukuvula, idiski isuka esihlalweni ngokukhawuleza—ngesiqhelo ngaphakathi kweedigri zokuqala ezisi-7–10 zokuhamba. Kuyo yonke intsalela ye-90-degree stroke, idiski iyajikeleza ngaphandle kokuthintana nesihlalo, isusa ukungqubana kunye nokuguga. Olu yilo lufezekisa ukuvalwa kwe-bidirectional tight-bubble kulo lonke uluhlu loxinzelelo.
Iivalvu eziphindwe kabini zingaxhotyiswa ngezihlalo zePTFE okanye zePTFE eziqinisiweyo (RPTFE) zenkonzo yenkqubo ngokubanzi ukuya kuthi ga kwi-260°C, kunye nezihlalo zesinyithi/igrafiti ezifakwe ilaminate kumaqondo obushushu aphezulu.
I-Triple Offset (i-Triple Eccentric) – Yenkonzo Egqithisileyo
Ivalvu ye-offset kathathu yongeza i-offset yesithathu yejometri:
I-Offset 3: I-axis yobuso besihlalo esikhonkwane ibekwe ecaleni komgca ophakathi weshaft, nto leyo eyenza umphezulu wokutywina ukusuka kwisinyithi ukuya kwisinyithi oneprofayili ekhonkwane.
Kwivalvu ene-triple offset, iindawo zokutywina azikhuhlani okanye zityibilike kwenye kwenye nangaliphi na ixesha ngexesha lokujikeleza. Idiski ibamba isihlalo kuphela kwindawo evaliweyo ngokupheleleyo ngesenzo se-wedge-like camming. Oku kuphelisa ukuguguleka koomatshini ngokupheleleyo.
Iivalvu ezintathu ezivaliweyo zivumela izihlalo zesinyithi ukuba zivale izihlalo eziqinileyo (ezingenalo ukuvuza), nto leyo evumela ukuba:
- Ubushushu buqala kwi -240°C ukuya kwi 650°C
- Iiklasi zoxinzelelo ukuya kuthi ga kwiKlasi yama-600 (okanye ngaphezulu xa iceliwe)
- Ukusebenza okukhuselekileyo emlilweni ngaphandle kwezixhobo zesihlalo ezithambileyo
- Ukutywinwa kweendlela ezimbini okuphucukayo njengoko uxinzelelo lomgca lusanda
Ezi mpawu zenza iivalvu ezintathu ezikhutshwayo zilungele ukusetyenziswa ezibalulekileyo apho iivalvu ezinezihlalo ezithambileyo zingasetyenziswa—kuquka umphunga oshushu kakhulu, ukwahlulwa kwe-hydrocarbon, kunye nenkonzo ye-oxygen.
Izinto ezibalulekileyo zeValve yeButterfly eSebenza kakuhle
Ukuqonda ulwakhiwo lwecandelo kunceda iinjineli ukuba zivavanye umahluko womgangatho phakathi kwabavelisi:
| Icandelo | Izinto eziqhelekileyo | Umsebenzi obalulekileyo |
|---|---|---|
| Umzimba | Intsimbi yekhabhoni yeWCB, intsimbi engagqwaliyo ye-A351 CF8/CF8M, intsimbi ethambileyo, i-duplex, ithusi le-aluminium ye-nickel | Umda woxinzelelo; ubonelela ngokuqina kwesakhiwo. Iintlobo ze-wafer kunye nee-lug ziyafumaneka |
| Idiski | I-A351 CF8M (316 SS), i-duplex, i-17-4PH, i-Inconel overlay, iMonel | Into ejikelezayo elawula ukuhamba kwamanzi; umphetho wediski ocoliweyo ngesandla unciphisa i-torque kwaye uphucula ukutywinwa |
| Isiqu (Umngxuma) | Intsimbi engagqwaliyo eyi-17-4PH, i-SS316, i-Inconel, iMonel | Ithumela i-torque ukusuka kwi-actuator ukuya kwi-disc; uyilo lwenxalenye enye lukhethwa ukuze kususwe iindlela zokuvuza |
| Isihlalo | I-PTFE, i-RPTFE, i-UHMWPE, isinyithi/igrafiti elaminethiweyo, i-Stellite hardfacing | Into ephambili yokutywina. Iivalvu ezisebenza kakuhle zisebenzisa izihlalo eziqinisiweyo okanye zesinyithi, hayi ii-elastomers |
| Izitywino Zesiqu | Ukupakisha kwe-PTFE, amaringi e-graphite aguquguqukayo, amaringi e-carbon fiber anti-extrusion | Ulawulo lokukhupha ukungcola olubalekayo; lugcina uphawu olujikeleze umngxuma ojikelezayo |
| Iibheringi | Iqokobhe le-SS elingu-316 eline-PTFE/ilaphu leglasi | Ixhasa isiqu; inciphisa ukungqubana; yandisa ubomi bomjikelo wevalvu |
| Isigcini Sesihlalo | Intsimbi yekhabhoni okanye intsimbi engatyiwayo | Iqinisekisa ukuhlanganiswa kwesihlalo emzimbeni; ivumela ukutshintshwa kwentsimi |
Ivalvu yebhabhathane eyilwe kakuhle esebenza kakuhle ikwaquka nephedi yokufaka ye-ISO 5211 edibeneyo yokufaka i-actuator ngqo ngaphandle kwezibiyeli, kunye neebheringi eziphezulu nezisezantsi zokuxhasa isiqu kunye nokwandisa ubomi bokusebenza.
Indlela iValve yeButterfly esebenza ngayo
Umgaqo wokusebenza ungashwankathelwa ngamanyathelo amahlanu:
- Indawo evaliweyo: Idiski ijikeleziswa ngokuthe nkqo kwindlela yokuhamba, icinezelwa kwisihlalo ukuze ivale i-bubble-tight.
- Ukuvulwa kokuqala (0° ukuya ku-~10°): I-geometry ye-offset ibangela ukuba idiski iphakame isuke esihlalweni ngoko nangoko, iphule unxibelelwano kwaye isuse ukungqubana okutyibilikayo.
- I-Mid-stroke (~10° ukuya kuma-80°): Idiski ijikeleza ngaphakathi kwendlela yokuhamba ngaphandle kokudibana nesihlalo, nto leyo ebangela ukuba i-torque yokusebenza ibe sezantsi kakhulu kwaye ingasebenzi kakuhle.
- Indlela yokugqibela (~80° ukuya kwi-90°): Idiski ibuyela esihlalweni kuphela xa ivaliwe ngokupheleleyo.
- Ukutywina: Amandla okutywina asetyenziswa ikakhulu ngoxinzelelo lomgca, kungekhona nge-actuator torque; uxinzelelo oluphezulu ngokwenene luphucula ukuqina kwesihlalo.
Olu tshintsho lwekhamera yeyona nto ibalulekileyo umahluko phakathi kwevalvu yebhabhathane esebenza kakuhle kunye noyilo oluqhelekileyo lwe-concentric. Kwivalvu e-concentric, idiski isoloko idibana nesihlalo kulo lonke ujikelezo lwe-90-degree, nto leyo ekhokelela ekugugulekeni ngokukhawuleza, kwiimfuno eziphezulu ze-torque, kunye nobomi benkonzo obufutshane.
Ivalvu yeButterfly eSebenzayo ngokuPhezulu xa ithelekiswa neValve yeButterfly eQinisekileyo: Uthelekiso olusecaleni
Kwiingcali zobunjineli kunye nokuthengwa kwempahla ezivavanya ukhetho lweevalvu, uthelekiso phakathi kweevalvu zebhabhathane ezixineneyo (udidi A) kunye nezisebenza kakuhle (udidi B) lubalulekile:
| Uphawu | Ivalvu yebhabhathane egxile kwiConcentric | Ivalvu yeButterfly eSebenzayo ePhakamileyo |
|---|---|---|
| Ijiyometri yeDiski | I-offset ye-zero (ephakathi) | I-offset ephindwe kabini okanye i-offset ephindwe kathathu |
| Uhlobo lweSihlalo | I-elastomeric ethambileyo (i-EPDM, i-NBR, i-Viton) | I-PTFE, i-RPTFE, elaminethiweyo, okanye isinyithi-ukusuka kwisinyithi |
| Uvavanyo loxinzelelo | Ukuya kuthi ga kwi-250 PSI (inqunyelwe kwiKlasi ye-150) | Ukuya kuthi ga kwi-1,480 PSI (iKlasi 600+; i-triple offset ukuya kuthi ga kwiKlasi 900) |
| Uluhlu lobushushu | -20°C ukuya kwi-180°C | Izihlalo ze-PTFE: -29°C ukuya kwi-260°C; izihlalo zesinyithi: -240°C ukuya kwi-650°C |
| Indlela Yokunxiba | Idiski ikhuhla isihlalo ngokujikeleza ngokupheleleyo | Isihlalo soqhagamshelwano lwediski kuphela xa kuvalwa (isenzo sekhamera) |
| I-Torque yokusebenza | Phezulu (ukungqubana rhoqo) | Ezantsi (kuphela xa uhleli/ususa izihlalo) |
| Isikhokelo sokutywina | Ngokwesiqhelo i-unidirectional | Icala eliya kwicala elinye (uxinzelelo olupheleleyo) |
| Uvavanyo lokuvuza | Isihlalo esiqinileyo (isihlalo esithambileyo) | Iklasi VI (ukuvuza okungabonakaliyo okungenanto) ye-PTFE; ukuvuza okungenanto kwi-triple offset |
| Ukufaneleka kwesicelo | Amanzi aphantsi koxinzelelo, umoya, usetyenziso ngokubanzi | Iincindi zenkqubo, iihydrocarbon, umphunga, imidiya ebolayo, inkonzo yomjikelo ophezulu |
| Ixabiso lokuqala | Ezantsi | Iphezulu (ixabiso eliphantsi eliqhelekileyo liyi-20–40%) |
| Ubomi beNkonzo | Iphakathi | Yandisiwe (imijikelo engaphezu kwe-100,000 ibonisiwe) |
Ivalvu yebhabhathane egxile kakhulu ilawula ishishini lamanzi namanzi amdaka kuba ilula, ithembekile, kwaye iqinile njengebhamuza enesihlalo esithambileyo. Nangona kunjalo, kuyo nayiphi na indlela esetyenziswa ngayo equka uxinzelelo olungaphezulu kwe-250 PSI, amaqondo obushushu angaphezu kwe-180°C, iihydrocarbons, umphunga, okanye iikhemikhali ezirhabaxa, ivalvu yebhabhathane esebenza kakuhle lukhetho olufanelekileyo lobunjineli.
Iingenelo kunye nokungalungi kweeValve zeButterfly ezisebenza kakuhle
Iingenelo
| Inzuzo | Inzuzo yoBunjineli |
|---|---|
| Akukho kuvuza/ukuvalwa okuqinileyo ngamaqamza | Ifikelela kuvavanyo lokuvuza lwe-ANSI/FCI 70-2 Class VI; i-triple offset inika ukuvuza okungekho nyani ngezihlalo zesinyithi |
| Ukutywinwa kweendlela ezimbini | Igcina ukuvalwa okulinganiselweyo ngokupheleleyo nokuba kuhamba ngayiphi na indlela, isusa iingxaki zokujongwa kofakelo |
| I-torque yokusebenza ephantsi | Ubungakanani be-actuator kunye neendleko eziphantsi; ukusetyenziswa kwamandla okuphantsi; ii-actuators ezincinci zomoya okanye zombane zingasetyenziswa |
| Ubomi benkonzo obude | Ukudibana kwediski nesihlalo kuphela xa kuvalwa kunciphisa kakhulu ukuguguleka; kuboniswe imijikelo engaphezu kwe-100,000 |
| Unyawo oluncinci | Ikhaphukhaphu kakhulu kwaye imfutshane kuneevalvu zesango, iglobhu, okanye ibhola ezilinganayo ngobukhulu, nto leyo enciphisa iimfuno zenkxaso yepayipi |
| Umthamo wokuhamba kwamanzi aphezulu | Uxinzelelo oluncinci luyehla xa luvuliwe ngokupheleleyo ngenxa yeprofayili yediski elungelelanisiweyo |
| Ukukhetha izinto ezibanzi | Isinyithi sekhabhoni, isinyithi esingenasici, i-duplex, i-alloy, kunye nemizimba yobhedu ye-aluminium ye-nickel iyafumaneka ukuze isetyenziswe njenge-corrosive |
| Uyilo olukhuselekileyo emlilweni | Iivalvu ezineentsimbi ezintathu ezihlala phantsi zikhuselekile emlilweni ngaphandle kwezixhobo ze-PTFE |
| Ukuvuza okuphantsi kwesiqu | Iinkqubo zokupakisha ze-PTFE eziphucukileyo okanye ze-graphite ziyahlangabezana nemigangatho engqongqo yokukhupha ukungcola okungafunekiyo (ISO 15848) |
Iingxaki
| Ububi | Ingqwalasela yokuthenga |
|---|---|
| Ixabiso lokuqala liphezulu | Uyilo oluphezulu kakhulu olujikeleze i-concentric ludla ngokuba yi-20–40%; isihlalo sesinyithi siphindwe kathathu singaphezulu kakhulu |
| Ithuba lokukhupha i-cavitation | Ukutyhala ngamandla xa uxinzelelo oluphezulu lunokubangela umonakalo kwi-cavitation |
| Intshukumo yediski engakhokelwanga | Indawo yediski ichaphazeleka kukuphazamiseka kwendlela ejikeleza ngayo isandi, nto leyo echaphazela ukuchaneka kokugoba xa kukho iindawo ezivulekileyo ezisezantsi. |
| Kunzima ukuyicoca | Uyilo lwe-wafer kunye ne-lug alufikeleleki lula ekucoceni ngaphakathi xa kuthelekiswa neevalvu ezijikelezileyo |
| Ayikhuthazwa xa isetyenziswa njenge-slurry okanye i-viscous kakhulu | Ukungena kwediski kwindlela yokuhamba kwamanzi kunokubangela ukubamba izinto eziqinileyo; iivalvu zesango lemela zinokukhethwa |
| Ukukhawulelana okulinganiselweyo okuphezulu okuhlukeneyo | Nangona zingcono kunezivali eziqinileyo, iivali zebhabhathane ezisebenza kakuhle azilungele ukusetyenziswa kakhulu ekuthomalaliseni. |
Uyilo lwe-offset luvelisa ukusebenza ngcono kwe-seal, i-dynamic torque ephantsi, kunye nokwehla koxinzelelo oluvumelekileyo kunee-butterfly valves eziqhelekileyo, kodwa ezi zibonelelo ziza kwinqanaba eliphezulu lexabiso lokuqala.
Ukusetyenziswa kweeValve zeButterfly ezisebenza kakuhle
Iivalvu zebhabhathane ezisebenza kakuhle zibaluleke kakhulu kumacandelo amaninzi apho ukuthembeka, ukuvuza okungavuziyo, kunye noyilo oluncinci kubalulekile:
Ioyile kunye neGesi
- Ukwahlulwa kwe-hydrocarbon yokucoca kunye nemigca ye-bypass
- Imibhobho yeoyile ekrwada kunye negesi yendalo (ukukhupha, ukuhambisa, kunye nokusasaza)
- Ukufunxa nokukhupha isikhululo secompressor
- Ukwahlulwa kwefama yetanki
- Ukuphathwa kwegesi emuncu (ngezixhobo ezihambelana ne-NACE MR0175)
Ukucutshungulwa kweeKhemikhali kunye neePetrochemical
- Ukuphathwa kweekhemikhali ezikonakalisayo (ii-asidi, ii-alkali, ii-caustics, iikhompawundi ze-chlorine)
- Iinkqubo zokubuyisa isinyibilikisi
- Imigca yemveliso yePolymer
- Izihluzi zamanzi amuncu
- Ii-reactors zeekhemikhali ezishushu kakhulu
Ukuveliswa koMbane
- Iinkqubo zamanzi okupholisa (amanzi ajikelezayo namanzi asetyenziswayo)
- Ukwahlulwa kweCondenser
- Imigca yokukhupha umphunga (iivalvu ezintathu ze-offset zomphunga oshushu kakhulu)
- I-boiler feedwater bypass
- Ukwahlulwa komoya wokungenisa umoya kwi-turbine yegesi
Unyango lwamanzi amdaka kunye namanzi amdaka
- Ukungenisa nokusasaza amanzi aluhlaza (ukusetyenziswa kwamanzi ajikelezayo)
- Iinkqubo ze-osmosis ezibuyela umva
- Iinkqubo zokucoca i-membrane
- Ukusetyenziswa kwegesi yokugaya ukutya
- Ukungena kunye nokuphuma kweClarifier
I-HVAC, iMarine, kunye nezinye iiShishini
- Amanzi abandayo kunye neenkqubo zamanzi ashushu zokufudumeza
- Iinethiwekhi zokufudumeza nokupholisa zesithili
- Iinkqubo ze-ballast zaselwandle kunye namanzi omlilo (imizimba yebronze ye-nickel aluminium yamanzi olwandle)
- Isityalo sokususa ityuwa kwi-reverse osmosis enoxinzelelo oluphezulu
- Intlama kunye nephepha (ukulungiswa kwesitokhwe, ukubuyiswa kweekhemikhali)
- Ukuphathwa kwemibhobho yodaka lwemigodi kunye neentsalela zemibhobho
- Isayensi yamayeza kunye nobomi (amanzi acocekileyo, umphunga ococekileyo)
Ngokophando lwemarike, amashishini afuna ulawulo oluchanekileyo lokuhamba kwamanzi—njengeoyile negesi, ukuveliswa kombane, kunye nokucubungula iikhemikhali—zezona zinto ziphambili ezibangela imfuno yeevalvu zebhabhathane ezisebenza kakuhle. Iivalvu ezintathu, ngokukodwa, zihlala zicetyiswa kwiimveliso zamakhemikhali, umbane, kunye nokucoca, kubandakanya nokutsalwa kwegesi yeshale.
Ixabiso leValve yeButterfly eSebenzayo ngokuPhezulu: Abaqhubi beendleko eziphambili kunye nobubanzi
Kwiingcali zokuthenga, ukuqonda ukuba yintoni emisela ixabiso levalvu yebhabhathane esebenza kakuhle kubalulekile ukuze kucwangciswe kakuhle uhlahlo lwabiwo-mali.
Izinto Eziphambili Ezichaphazela Ixabiso
| I-Factor | Impembelelo kwiXabiso |
|---|---|
| Ubungakanani bevalvu | Iidayamitha ezinkulu (ngaphezulu kwe-DN300) zonyusa kakhulu iindleko zesiseko ngenxa yobungakanani bezinto kunye noomatshini bokubumba. |
| Iklasi yoxinzelelo | Iklasi yama-300: malunga ne-30–50% yeprimiyamu ngaphezu kweKlasi ye-150; Iklasi yama-600: eyongezelelweyo i-25–40% |
| Ukukhetha izinto | Intsimbi engagqwaliyo (CF8/CF8M): I-premium engama-40–60% ngaphezu kwentsimbi yekhabhoni; i-duplex/i-super duplex: i-premium eyi-100–150% |
| Uhlobo lwesihlalo | Izihlalo ze-PTFE: eziphakathi; izihlalo zesinyithi ezilaminethiweyo: iprimiyamu engama-30–50%; izihlalo zesinyithi eziphindwe kathathu: eziphezulu |
| Uqhagamshelo lokuphela | Iwafa: engabizi kakhulu; Ilug: +15–25%; Iflanged: +20–40% |
| Ukusebenza | Isixhobo sokusebenza ngesandla: isiseko; umqhubi wegiya: +15–25%; i-actuator yomoya: +40–100%; i-actuator yombane: +50–120% |
| Iziqinisekiso ezikhethekileyo | Ikhuselekile emlilweni (API 607), ukukhutshwa kwezinto ezikhutshwayo ezibalekayo (ISO 15848), i-NACE MR0175 yongeza i-5–15% |
| Iimfuno zovavanyo | I-NDT eyongezelelweyo, uvavanyo lwe-cryogenic, okanye ukuqinisekiswa komjikelo ophezulu kunyusa iindleko |
Uluhlu lwamaxabiso olumeleyo (olubonisayo)
| Ubungakanani | I-Class 150 Wafer, Umzimba we-WCB, Isihlalo se-PTFE, I-Lever | I-Class 300 Wafer, Umzimba we-WCB, Isihlalo se-PTFE, Iigiya | I-Class 150 Wafer, Umzimba we-CF8M, Isihlalo se-PTFE, I-Pneumatic |
|---|---|---|---|
| DN50 (2″) | $85 – $120 | $180 – $250 | $400 – $550 |
| DN100 (4″) | $130 – $180 | $260 – $360 | $500 – $700 |
| DN150 (6″) | $180 – $250 | $350 – $480 | $650 – $900 |
| I-DN200 (8″) | $250 – $350 | $450 – $600 | $850 – $1,200 |
| I-DN300 (12″) | $450 – $620 | $750 – $1,050 | $1,400 – $2,000 |
| I-DN500 (20″) | $1,200 – $1,700 | $1,800 – $2,600 | $3,200 – $4,800 |
Qaphela: Amaxabiso abonisa kwaye anokutshintsha ngokusekwe kukuguquguquka kwemarike yezinto kunye neemfuno ezithile zobunjineli. Cela ikowuteshini yenkampani yesicelo sakho.
Izinto eziqwalaselwayo malunga neendleko zobunini (i-TCO)
Nangona ivalvu yebhabhathane esebenza kakuhle inexabiso eliphezulu lokuqala lokuthenga kunevalvu egxile kwi-concentric, ixabiso layo lilonke lobunini bayo kwixesha lonke lokusetyenziswa kwesixhobo lidla ngokuba liphantsi ngenxa yezi zinto zilandelayo:
- Amaxesha okugcinwa ande – Ukungagugi kwesihlalo okuncinci kuthetha ukungatshintshwa rhoqo
- Amandla okusebenza aphantsi - Iimfuno ze-torque ezincitshisiweyo zivumela ii-actuators ezincinci kunye neendleko eziphantsi zokusetyenziswa
- Akukho zigwebo zokukhupha ukungcola okubalekayo - Ukuvalwa kwesiqu okuphezulu kuthintela iindleko zokuthobela imithetho
- Ubomi benkonzo ende – Ubomi benkonzo eqhelekileyo beminyaka eli-10–15 kwinkonzo ephakathi, xa kuthelekiswa neminyaka emi-5–8 kwimizobo egxile kwiimeko ezifanayo
Iivalvu zebhabhathane ezisebenza kakuhle zihlala zibiza kancinci kuneevalvu zebhola okanye zeplagi ezinobukhulu obufanayo kunye novavanyo, kodwa zibonelela ngokukwazi ukuvala okufanayo okanye okungcono—okwenza zibe lolona khetho lufanelekileyo kwiinkqubo ezininzi zokuvula/ukuvala ezifuna ukuba zingavuzi.
Indlela yokuchaza iValve yeButterfly eSebenza kakuhle
Kwiingcali zokuthenga ezilungiselela i-RFQ okanye i-oda yokuthenga, ezi mpawu zilandelayo kufuneka zichazwe ukuqinisekisa ukhetho oluchanekileyo:
| Uphawu | Inkcazelo efunekayo |
|---|---|
| Umgangatho woyilo | I-API 609 Udidi B (ukusebenza okuphezulu) |
| Uhlobo lwevalvu | I-offset ephindwe kabini (eqhelekileyo) okanye i-offset ephindwe kathathu (inkonzo egqithisileyo) |
| Uhlobo lomzimba | I-wafer (eyona ixhaphakileyo), i-lug (inkonzo engapheliyo), okanye i-double flanged (ubukhulu obukhulu/uxinzelelo oluphezulu) |
| Ubungakanani | I-NPS 2″ – 48″ (enkulu iyafumaneka xa iceliwe) |
| Iklasi yoxinzelelo | Iklasi ye-ASME 150, 300, okanye 600 |
| Izinto zomzimba | I-WCB (intsimbi yekhabhoni), i-CF8/CF8M (engenasigqubuthelo), i-duplex, okanye i-alloy |
| Izinto zediski | Cacisa ukuhambelana kolwelo ngalunye |
| Izinto zesihlalo | I-PTFE (inkqubo eqhelekileyo), isinyithi-ukusuka kwisinyithi (ubushushu obuphezulu), okanye i-laminated |
| Ukuvuza kwesihlalo | I-ANSI/FCI 70-2 Class VI (engangenisi bubble) okanye engavuziyo |
| Izinto ezisetyenziswa kwisiqu | Ngokwesiqhelo intsimbi engagqwaliyo eyi-17-4PH |
| Uqhagamshelo lokugqibela | I-ASME B16.5 okanye elinganayo |
| Ubukhulu bobuso ngobuso | I-API 609 (ipateni emfutshane okanye ipateni ende) |
| Ukusebenza | Isixhobo sokusebenza ngesandla, umqhubi wegiya, i-actuator yomoya, okanye i-actuator yombane |
| Iimfuno ezizodwa | Ikhuselekile emlilweni (API 607), ukukhutshwa kwezinto ezikhutshwayo ezibalekayo (ISO 15848), i-NACE MR0175 (inkonzo emuncu), i-cryogenic |
| Uvavanyo | I-API 598 (uvavanyo loxinzelelo lwegobolondo kunye nesihlalo) |
Imigangatho ephambili kunye neziqinisekiso
| Umgangatho | Ububanzi |
|---|---|
| I-API 609 | Umgangatho oyintloko woyilo lweevalvu zebhabhathane—uchaza udidi A kunye nodidi B |
| I-ASME B16.34 | Uvavanyo loxinzelelo-lobushushu bevalvu |
| I-ASME B16.5 / B16.47 | Ubukhulu beFlange |
| I-API 598 | Ukuhlolwa kwevalvu kunye novavanyo loxinzelelo |
| I-ANSI/FCI 70-2 | Uhlu lokuvuza kwesihlalo sevalvu (Udidi VI = ukuqina kwamaqamza) |
| I-API 607 / I-API 6FA | Umgangatho wovavanyo olukhuselekileyo emlilweni |
| I-ISO 15848 | Uvavanyo lokukhupha ukukhutshwa kwe-stem seals ngenxa yokukhutshwa kwe-fugitive emissions |
| I-ISO 5211 | Ujongano lokufakelwa kwe-Actuator |
| I-NACE MR0175 / MR0103 | Inkonzo emuncu (indawo eziqulethe i-H₂S) |
Imibuzo Ebuzwa Rhoqo (Imibuzo Ebuzwa Rhoqo)
Ewe, kodwa kukho imida ethile. Iivalvu zebhabhathane ezisebenza kakhulu eziphindwe kabini zibonelela ngeempawu zokuhamba ngomgca kwiidigri ezingama-90 zokujikeleza, nto leyo ezenza zifaneleke ukusetyenziswa kolawulo. Nangona kunjalo, ukugoba kwiindawo ezivulekileyo eziphantsi kakhulu (ngaphantsi kwe-15-20%) okanye kwiingcinezelo eziphezulu ezahlukeneyo kunokukhokelela ekugobeni kwinkonzo yolwelo. Iivalvu ze-triple offset zibonelela ngokusebenza okuphezulu kokugoba ngenxa yomlinganiselo wazo ophezulu wokulawula. Ukuze ufumane ulawulo oluchanekileyo lokugoba, jonga ii-curves ze-flow coefficient (Cv) zomenzi kunye nedatha ye-cavitation yobungakanani bevalvu ethile kunye nokusika.
Isitayile se-wafer:Ivalvu ibotshelelwe phakathi kweeflanges ezimbini zepayipi. Olu lolona hlobo lufanelekileyo kodwa aluvumeli ukususwa kwepayipi esezantsi ngaphandle kokunciphisa uxinzelelo kwinkqubo. Iivalvu zeWafer zibiza nge-20-40% kuneevalvu zelug ezinobukhulu obufanayo.
Uhlobo lweLug:Umzimba wevalvu unezifakelo ezinemisonto (iilugs) kumacala omabini, nto leyo evumela ukuba iibolti ziye kwiiflanges kumacala omabini ngokwahlukeneyo. Oku kwenza inkonzo engapheliyo, oko kuthetha ukuba imibhobho esezantsi ingasuswa ngelixa icala elingasentla lihlala lixinezelekile—ibalulekile ekufikeleleni kulondolozo. Iivalvu zeLug zikwabonelela ngamandla ongezelelweyo oomatshini kwiinkqubo eziphantsi koxinzelelo lwemibhobho.
Zombini iintlobo ziyafumaneka kwiindlela ezimbini zokutywina.
Khetha i-triple offset xa:
- Amaqondo obushushu adlula ama-260°C (umda osebenzayo wezihlalo ze-PTFE/RPTFE)
- Ukusetyenziswa kufuna ukuvalwa kwesinyithi ukusuka kwisinyithi ukuya kwisinyithi okungenalo ukuvuza
- Inkonzo ibandakanya ukuhlukaniswa komphunga obushushu obuphezulu okanye i-hydrocarbon apho ukhuseleko lomlilo luyimfuneko
- Amanani aphezulu omjikelo afuna ukumelana nokuguguleka okuphezulu
- Ivalvu isetyenziswa kwinkonzo ye-cryogenic (i-LNG, i-ethylene)—iivalvu ezintathu ezifakwe kwi-offset ezinezixhobo ezifanelekileyo zisebenza ngokuthembekileyo kumaqondo obushushu aphantsi kakhulu.
Khetha i-double offset (ukusebenza okuphezulu okuqhelekileyo) xa:
- Amaqondo obushushu angaphantsi kwama-260°C
- Izihlalo zePTFE okanye zePTFE eziqinisiweyo zibonelela ngokuhambelana okwaneleyo kweekhemikhali
- Ubomi bomjikelo ophakathi (amashumi amawaka emijikelo) ahlangabezana neemfuno
- Ixabiso eliphantsi lokuqala lenkunzi libaluleke kakhulu
Uvavanyo oluzimeleyo lubonise ukuvalwa okuqinileyo kwimijikelo engaphezu kwe-100,000 yeevalvu zebhabhathane ezisemgangathweni ezisebenza kakuhle eziphindwe kabini. Iivalvu ezintathu ezisebenza kakuhle, ezinezihlalo zazo zesinyithi kunye nejometri yokuvala engenamthungo, zinokufikelela kubomi benkonzo obude nangakumbi—zidla ngokudlula imijikelo engama-250,000 kwiimeko zenkonzo eziphakathi. Ubomi bomjikelo wokwenyani buxhomekeke kwiimeko zokusebenza, kubandakanya uxinzelelo, ubushushu, ucoceko lolwelo, kunye nesantya sokusebenza.
Hayi. Inzuzo ephambili yoyilo oluphezulu kukukwazi ukutywina okuya kwicala elinye. Ngokungafaniyo neevalvu ezininzi zebhabhathane ezixineneyo, ezinokuba necala lokuhamba elithandwayo elishicilelwe emzimbeni, iivalvu ezikumgangatho ophezulu zigcina ukusebenza okulinganiselweyo kokuvala nokuba ukubekwa kwecala kunjani na. Oku kwenza kube lula ukufakwa kwaye kunciphisa umngcipheko wokufakelwa gwenxa.
Isishwankathelo seeNjineli kunye neeNgcali zoThengo
| Kwezobunjineli | Ukuthenga |
|---|---|
| Iivalvu zebhabhathane ezisebenza kakuhle (i-double/triple offset) ziyindlela efanelekileyo yokukhetha uxinzelelo lwenkqubo olungaphezulu kwe-250 PSI, amaqondo obushushu angaphezu kwe-180°C, kunye ne-hydrocarbon, umphunga, okanye inkonzo yokubola. | Ixabiso lokuqala liphezulu kuneevalvu eziqinileyo (20–40%), kodwa i-TCO idla ngokuba phantsi ngenxa yexesha elide lenkonzo kunye nokugcinwa okunciphileyo. |
| Intshukumo yekhamera (idiski igcina kuphela xa ivaliwe) yeyona nto iphambili eyahlulahlulayo — oku kususa ukuguguleka kwaye kwenza ukuba i-torque ephantsi kwaye kungabikho ukuvuza. | Xa ucela iikowuteshini, chaza i-API 609 Category B, uhlobo olufunekayo lwe-offset (ephindwe kabini okanye kathathu), izinto zesihlalo, kunye nazo naziphi na iziqinisekiso ezikhethekileyo (ezikhuselekileyo emlilweni, ezikhupha ukukhutshwa kwegesi, i-NACE) |
| Iivalvu ezintathu ezikhutshwayo zibonelela ngokungabikho kokuvuza kwesinyithi ukuya kwisinyithi ukuya kuthi ga kwi-650°C kwaye azinabungozi emlilweni; iivalvu ezimbini ezikhutshwayo ezinezihlalo ze-PTFE zilungele ukuya kuthi ga kwi-260°C. | Okulindelweyo kuhlahlo-lwabiwo mali: Uhlobo lwe-wafer yeklasi ye-150 enomzimba wentsimbi yekhabhoni kunye nesihlalo se-PTFE sidla ngokuba yi-$100–1,000 kuxhomekeke kubukhulu; Uhlobo lwe-300 longeza i-30–50%; izihlalo zesinyithi zongeza i-30–50%; ukusebenza kunokuphinda kabini okanye kathathu iindleko zevalvu yesiseko |
| Soloko uqinisekisa ukuba ivalvu ekhethiweyo iyahlangabezana neemfuno ze-API 609 Category B zovavanyo lobushushu boxinzelelo | Cinga ngokubeka izixhobo zezihlalo ezingasetyenziswanga xa ufuna izinto ezibalulekileyo — ukutshintshwa kwesihlalo kulula kwaye kwandisa ubomi beenkonzo zeevalvu kakhulu. |
Nasiphi na isicelo apho umgangathoIivalvu zebhabhathane(Udidi A) alwanelanga kwiimeko zoxinzelelo, ubushushu, okanye zemidiya, ivalvu yebhabhathane esebenza kakuhle (Udidi B) sisisombululo esiqinisekisiweyo nesingabizi kakhulu—esinikezela ukuthembeka kokutywinwa kwebhola okanye ivalvu yeplagi ene-compact footprint kunye nobunzima obuphantsi bevalvu yebhabhathane, ngexabiso eliphantsi elifakiweyo.
Ulwazi lobuchwephesha olungentla malunga neevalvu zeebhabhathane luvela kwiqela lobuchwephesha leUmvelisi weValve yeButterfly- IVALAVU YE-NSW.
Ixesha leposi: Juni-07-2026