Izingxenye zokudonsa ama-valve ziyizakhiwo eziyisisekelo ezinhlelweni eziningi zezimboni lapho ukulawulwa koketshezi kubalulekile ukuze kusebenze ngokuphepha nangempumelelo. Lezi zingxenye zikhiqizwa ngezindlela zokudonsa okunembayo eziguqula insimbi encibilikile ibe ama-valve aqinile, angavuza, akwazi ukumelana nezingcindezi ezinkulu namazinga okushisa. Ukubaluleka kwezingxenye zokudonsa ama-valve ezisezingeni eliphezulu akukwazi ukugcizelelwa kakhulu, njengoba zithinta ngqo ukwethembeka nokuphila isikhathi eside kwezinhlelo zemishayo emikhakheni kusukela emafutheni negesi kuya ekwelashweni kwamanzi. Lapho abakhiqizi betshala izindlela eziphakeme zokudonsa ama-valve, baqinisekisa ukuthi ingxenye ngayinye ihlangabezana namazinga aqinile okusebenza futhi imelana nokugqwala, ukudliwa, nokukhathala komshini isikhathi eside. Njengomunye wabahlinzeki abahamba phambili kulo mkhakha, i-HEBEI UNNA METAL TECHNOLOGY CO.,LTD. igcizelela indima ebalulekile yezindlela zokudonsa ezithuthukisiwe ekuhlinzekeni izingxenye ezidlula amazinga ekhwalithi omhlaba. Ochwepheshe abafuna izixazululo eziwethembekile zokulawula ukuhamba bavame ukujikela ezingxenyeni zokudonsa ama-valve ezakhiwe kahle ukuze banciphise isikhathi sokungasebenzi nezingozi zokusebenza ezindaweni ezidinga kakhulu.

Ukukhula kwesidingo samandla emhlabeni wonke, amanzi ahlanzekile, namakhemikhali acutshungulwe kukhuphule isidingo sezinto ezisezingeni eliphezulu zokubumba ama-valve ezikwazi ukusebenza ngokuthembekile ezimweni ezinzima. Izimboni zesimanje zidinga ama-valve angagcini nje ngokulawula ukugeleza kodwa futhi anikeze ukuvalwa okuqinile, ukuvuza okuncane, nokumelana nezinto ezilimazayo. Ubuchwepheshe bokubumba buye bathuthuka kakhulu emashumini eminyaka adlule, buvumela abakhiqizi ukuthi bakhiqize izimo eziyinkimbinkimbi kanye nezingxenye zangaphakathi eziyinkimbinkimbi ezithuthukisa izici zokugeleza futhi zinciphise ukwehla kwengcindezi. Izinkampani ezifana ne-HEBEI UNNA METAL TECHNOLOGY CO.,LTD. zisebenzisa amashumi eminyaka okuhlangenwe nakho kwezinsimbi kanye nemishini yesimanje yezimboni zokubumba ukuhlinzeka ngezingxenye zokubumba ama-valve ezanelisa kokubili izimfuneko zasekhaya nezamazwe omhlaba. Ukukhethwa kwezinto ezifanele, ukulawula okunembayo kobukhulu, kanye nezinqubo eziqinile zokuqinisekisa ikhwalithi konke kubalulekile ukuze kufezekiswe amazinga okusebenza abalindele abanjiniyela ezingxenyeni zama-valve zesimanje. Kunoma iyiphi inhlangano ehilelekile ekusingatheni uketshezi, ukuqonda imininingwane yezingxenye zokubumba ama-valve kuyisinyathelo sokuqala sokwenza izinqumo zokuthenga ezinolwazi ezithuthukisa ubuqotho besistimu nokusebenza kahle.

Ukwakhethwa kwezinto ezisetshenziselwa izingxenye zokubumba amavalvu kunquma izimfanelo zawo zemishini, ukumelana nokugqwala, ukubekezelelana nokushisa, kanye nokuphila kwawo konke ekusebenzeni ezinhlelweni ezithile. Insimbi yokuphonsa ingenye yezinto ezisetshenziswa kakhulu ngenxa yokukwazi kwayo ukubunjwa kahle, ukumelana nokuguga, nokonga, okwenza ibe ukukhetha okudumile kwamavalvu ajwayelekile ezinhlelweni zamanzi nodoti. Ivalvu yensimbi eyenziwe ngokubumba isihlabathi noma ngokubumba okutshalwe kungaletha ukusebenza okuthembekile kumazinga aphakathi nengcindezi nokushisa, ikakhulukazi lapho kusetshenziswa izigaba zensimbi eqinile ukuze kwengezwe amandla nokumelana nomthelela. Kwezinye izinhlelo ezidinga kakhulu ezibandakanya ingcindezi ephezulu, izinga lokushisa eliphezulu, noma uketshezi olukhafulayo, izinsimbi ezihlanganisiwe ezifana nensimbi yekhabhoni, insimbi engagqwali, nensimbi eyenziwe ngayo izinto ezihlukahlukene zikhethwa ngenxa yezimfanelo zazo zemishini ezingcono nokuqina. Isibonelo, i-api 600 gate valve standard, ichaza izidingo eziqinile zezinto ezisetshenziswa kumavalvu ensimbi asetshenziswa embonini kaphethiloli negesi yemvelo, iqinisekisa ukuthi izingxenye zokubumba amavalvu zihlangabezana nezimfuneko eziqinile zokuphepha nokusebenza. Ngaphezu kwalokho, izinsimbi ezikhethekile ezifana ne-nickel-based superalloys ne-duplex stainless steels zisetshenziswa ezindaweni eziyingozi lapho izinto ezijwayelekile zingahluleka ngaphambi kwesikhathi.

Phakathi kwezinketho ezahlukahlukene zezinto, i-ci foot valve imele ukusetshenziswa okuvamile kwensimbi eshisiwe ezingxenyeni zokubumba amavalvu, ikakhulukazi ezinhlelweni zokumpompa lapho ama-foot valve afakwa phansi kwemigqa yokudonsa ukuze kugcinwe i-prime futhi kuvinjelwe ukubuyela emuva. Ins simbi eshisiwe esetshenziswa kulezi zingxenye ngokuvamile iqukethe i-flake graphite, enikeza ukulungiseka okuhle nokudambisa ukudlidliza, yize i-ductile iron ene-nodular graphite ngokuvamile ikhethwa kakhulu ngezidingo zamandla aphezulu nokwelulwa. Ukukhethwa kwezinto kuhlanganisa nokucatshangelwa ngokucophelela kwemidiya yoketshezi, njengoba amanye amakhemikhali angadala ukugqwala okusheshayo noma ukuguguleka kwezingxenye zokubumba amavalvu uma i-alloy ingafaniswanga kahle. Ngokwesibonelo, izicelo zamanzi olwandle zivame ukudinga ukubumba kwe-bronze noma i-nickel-aluminum bronze, kanti izindawo zegesi elimuncu zidinga izinto ezimelana nokugqwala okubangelwa ukucindezeleka kwe-sulfide. Abakhiqizi abaningi, okubandakanya i-HEBEI UNNA METAL TECHNOLOGY CO.,LTD., banikeza izitifiketi zezinto ezibanzi nokulandelelwa kwawo wonke ama-batch izingxenye zokubumba amavalvu, banikeze amakhasimende ukuzethemba ekugcineni kwezinto ezibonakalayo zezakhiwo zawo. Ukuqonda amandla nemikhawulo yazo zonke izigaba zezinto kwenza abanjiniyela bakwazi ukucacisa i-alloy efanelekayo ezimweni zabo ezithile zokusebenza futhi kwandise impilo yesevisi yomhlangano wonke wevalvu.

Ukwenza izingxenye zokudonsa zamavalvu ezisezingeni eliphezulu kudinga ukukhetha indlela efanele yokudonsa esekelwe ku-geometry yengxenye, izidingo zokubekezelelana, umthamo wokukhiqiza, nezici zezinto. Ukudonsa ngesihlabathi kuyindlela yakudala futhi esetshenziswa kakhulu ekudonseni kwamavalvu, enikeza ukuguquguquka ngosayizi, isimo, nokukhetha i-alloy ngenkathi kugcinwa izindleko zamathuluzi ziphansi kakhulu kokukhiqizwa okuncane nokukhulu. Ekudonseni ngesihlabathi, ipatheni isetshenziselwa ukudala umgodi esikhunjeni sesihlabathi, lapho kuthululwa khona insimbi encibilikisiwe ukwakha umzimba wevalvu, isigqoko, noma ezinye izingxenye, futhi le nqubo ingakwazi ukubhekana nakho konke kusuka kumavalvu amancane ensimbi kuya kumavalvu amakhulu ezimboni asindayo amathani amaningana. Ukudonsa ngokutshala, okwaziwa nangokuthi ukudonsa ngewax olahlekile, kukhethwa ngezimo eziyinkimbinkimbi kanye nokubekezelelana okungapheli, njengoba kusebenzisa uqweqwe lwe-ceramic olwakhiwe phezu kwephethini yewax kamuva oluncibilikiswa ngaphambi kokuthulula insimbi encibilikisiwe. Le ndlela ifanele kakhulu ekukhiqizeni izingxenye zamavalvu eziyinkimbinkimbi njengezingxenye zokuhlobisa, izingxenye zamavalvu ebholamu, nama-impeller lapho isiphetho sobubuso nokunemba kubalulekile ukuze kusebenze kahle. Enye inqubo ebalulekile ukudonsa nge-centrifugal, esetshenziswa ikakhulukazi ezingxenyeni zamavalvu ezijikelezayo njengezikhala namabhande, lapho amandla e-centrifugal aqinisekisa ubukhulu bodonga obufanayo kanye ne-microstructure egcwele futhi engenazo izinto ezingafuneki.

Ukubopha ngezinsimbi ezincibilikisiwe ngezinye izikhathi kusetshenziselwa izingxenye zama-valve ezingenawo insimbi ezimeni lapho kwenziwa khona inani elikhulu, yize imikhawulo yengcindezi yenqubo ikhawulela ukusetshenziswa kwayo ezingxenyeni zama-valve aphansi kakhulu. Indlela ngayinye yokubopha inezinzuzo ezihlukile nezingezinhle maqondana nezindleko, isikhathi sokulinda, izakhiwo zemishini, kanye nobunzima obungafinyeleleka, ngakho-ke abakhiqizi kufanele bahlole lezi zici ngokucophelela lapho behlela ukukhiqiza. Ngokwesibonelo, umzimba we-api 600 gate valve uvame ukudinga ukubopha ngesihlabathi ngenxa yobukhulu bawo kanye nesidingo sokuba namandla okubamba ingcindezi, kanti isihlalo esincane se-valve yethusi singenziwa ngokubopha ngokutshala ukuze sithole ikhwalithi engaphezulu yendawo kanye nokunemba kobukhulu. Ukukhethwa kwendlela nakho kuthinta imisebenzi yokucubungula nokugqibezela okulandelayo okudingekayo, njengoba izindawo ezibophiwe zingadinga ukucubungulwa okwengeziwe ukuze kuhlangatshezwane nezincazelo zokugcina. Izindawo eziningi zokubopha, njengezisebenza yi-HEBEI UNNA METAL TECHNOLOGY CO.,LTD., zihlanganisa ubuchwepheshe obuningi bokubopha endaweni efanayo ukuze zinikeze amakhasimende izinketho eziningi zezidingo zezingxenye zazo zokubopha ama-valve. Ngokuqonda amakhono nemikhawulo yendlela ngayinye, ochwepheshe bokuthenga bangasebenzisana ngempumelelo nabahlinzeki bokubopha ukuze bathole ibhalansi engcono kakhulu yekhwalithi, izindleko, nokulethwa.

Ukwenziwa kwezingxenye zokubumba izivalo kulandela uchungechunge oluhlelekile lwezinyathelo oluqala ngokulungiswa kwephethini nesikhunta, luze luphelele ekuqedeleni nasekuqinisweni kwekhwalithi. Okokuqala, kwenziwa iphethini elilingisa ubujamo bangaphandle bengxenye yesivalo esifunwayo, ngokuvamile eyenziwe ngokhuni, insimbi, noma ipulasitiki kuye ngomthamo wokukhiqiza nokunemba kwezinga okudingekayo. Leli phethini lisetshenziselwa ukwakha umgodi wesikhunta esihlabathini noma enye into engamelana nokushisa, futhi izikhungo zifakwa ukuze kwakhiwe imigudu yangaphakathi njengemisele yokugeleza nezimbobo zamabhawodi ezibalulekile ekusebenzeni kwesivalo. Ngemuva kwalokho, umhlangano wesikhunta uvalwa futhi uqinisekiswe ukuze umelane nomfutho wensimbi encibilikisiwe ngesikhathi sokuthelwa, kunikezwe ukunakwa ngokucophelela ekwakhiweni kwamasango nama-riser ukuze kuqinisekiswe ukugcwala kahle nokondliwa kokubumba. Okulandelayo, i-alloy ekhethiwe incibilikiswa kuhhavini, ngokulawula okuqinile kwezinga lokushisa, ukwakheka, nokwelashwa kokuncibilika ukuze kutholwe izakhiwo zensimbi ezifunwayo zezingxenye zokubumba izivalo. Ekukhiqizweni kwezivalo zensimbi, insimbi encibilikisiwe ngokuvamile iphathwa ngama-nodularizing agents ukuze kukhiqizwe insimbi ye-ductile, noma ngokufakelwa ukuze kuthuthukiswe ukwakheka kwe-graphite ku-gray iron, ngaphambi kokuthelwa esikhunjeni esilungisiwe.

Ngemva kokuthululwa, ukubumba kuvunyelwa ukuba kuqine futhi kuphole ngaphansi kwezimo ezilawulwayo ukuze kuncishiswe ukucindezeleka kwangaphakathi futhi kuvinjelwe iziphambeko ezifana nokuncipha kwe-porosity noma ukudabuka okushisayo. Uma ukubumba sekuphole ngokwanele, kuyanyakazwa kusuke esikhunjeni, futhi isihlabathi sibuyiselwa ukuba sisetshenziswe kabusha kanti ukubumba okungaphelele kuhlanzwa isihlabathi esinamathiselwe nesikali. Izingxenye zokubumba amavalvu bese zidlula uchungechunge lwemisebenzi yokuqeda okuhlanganisa ukugaya, ukudubula ngesibhamu, ukwelashwa ngokushisa, nokucubungula ukuze kufinyelelwe ubukhulu bokugcina, isiphetho sobukhazikhazi, kanye nezakhiwo zemishini ezicaciswe ikhasimende. Izinqubo zokwelashwa ngokushisa ezifana ne-annealing, normalizing, noma quenching and tempering zisebenza ukwenza kahle i-microstructure futhi kukhulule ukucindezeleka okusele, kuqinisekisa ukuthi ukubumba kuhlangabezana nezidingo zokuqina nobunzima. Wonke umkhiqizo wokubumba amavalvu uphathwa ngokuhlolwa okungabhubisi okunzima, okuhlanganisa ukuhlolwa okubonakalayo, ukuqinisekiswa kobukhulu, ukuhlolwa kwengcindezi, futhi ngezinye izikhathi ukuhlolwa kwe-radiographic noma i-ultrasonic ukuthola ukuphazamiseka kwangaphakathi. Abakhiqizi abafana ne-HEBEI UNNA METAL TECHNOLOGY CO.,LTD. bagcina amarekhodi enemininingwane yekhwalithi nokulandelelwa kuyo yonke inqubo, okubavumela ukuba baqinisekise ukuthi ingxenye ngayinye ihambisana namazinga afanelekayo afana ne-API, ASTM, noma i-ISO.

Ngaphandle kokuqhubeka kobuchwepheshe bokubumba, ukukhiqiza izingxenye zokubumba zamavalvu ezingenamaphutha kubonisa izinselele eziningana eziqhubekayo okufanele izindawo zokubumba zibhekane nazo ngokulawula inqubo ngokucophelela nokuthuthukisa njalo. Enye yezinkinga ezivame kakhulu ukuba khona kwezimbotshana (porosity), ezingabonakala njengezimbotshana zegesi ezivela kumagesi abanjwe noma izimbotshana zokuncipha ezivela ekudleni okunganele ngesikhathi sokuqina, zombili ezilimaza ukuqina komfutho nokuhlala komshini. Ukunciphisa izimbotshana, izindawo zokubumba zithuthukisa ukwakhiwa kwezindawo zokungena nezokukhuphuka (gating and riser designs), zilawula izinga lokushisa nesivinini sokuthela, futhi zisebenzisa izindlela zokukhipha amagesi ukususa i-hydrogen encibilikile emetheni enyibilikile ngaphambi kokuthela. Enye inselele ejwayelekile ukwakheka kwezinto ezingafakwanga (inclusions), okuyizinhlayiya ezingezona ezensimbi njengesihlabathi, isilaka, noma izinto zokuvikela ukushisa ezibanjwa ekubumbeni futhi zingasebenza njengezindawo zokucindezeleka noma izindlela zokuqhaqha. Izixazululo zokulawula izinto ezingafakwanga zihlanganisa ukuhlanza isikhunta kahle, ukusetshenziswa kwezihlungi ze-ceramic foam ohlelweni lokungena, nokukhipha isilaka ngokucophelela kusuka ebusweni bemethele enyibilikile ngaphambi kokuthela ngesikhathi sokukhiqiza izingxenye zokubumba zamavalvu.

Ukuphambana kobukhulu kubonisa enye inkinga ebalulekile, ikakhulukazi ezingxenyeni ezinkulu noma eziyinkimbinkimbi zamalungu omshini wokubumba lapho ukuguga kwephethini, ukuhlehla kwesikhunta, noma ukunyakaza kwekhoyili kungaholela ekuhlehlweni kumikhawulo ecacisiwe. Ukusebenzisa izinhlelo eziqinile zokugcinwa kwephethini, ukusebenzisa amathuluzi aqinisiwe omkhiqizo omkhulu, nokusebenzisa imishini yokulinganisa ye-computerized coordinate yokuhlola kusiza ukugcina ukulawula okukhulu kobukhulu. Amaphutha angaphezulu njengokushiswa kwesihlabathi, ukugqabuka, nokuhlangana kungase futhi kuthinte ukubukeka nokusebenza kwezingxenye ezibunjiwe, ngokuvamile kufuna ukugaywa okwengeziwe noma ukulungiswa ngokushisela ukuze kulungiswe. Ukusetshenziswa kwezendlalelo zesikhunta, ukulawula ngokucophelela izakhiwo zesihlabathi, nokusebenzisa izindlela zokukhafu ezilungile kuyizindlela eziphumelelayo zokunciphisa lezi zinkinga zangaphezulu. Ezigabeni ezibalulekile njengomshini wokubumba we-api 600, lapho ubuqotho bokubamba ingcindezi bubaluleke kakhulu, izindawo zokubumba zingase futhi zisebenzise isofthiwe ethuthukisiwe yokulinganisa ukumodela inqubo yokugcwalisa nokuqina nokubikezela izindawo ezingaba nephutha ngaphambi kokuba kuthulwe noma yikuphi insimbi. Ngokuhlala unolwazi ngezindlela ezingcono kakhulu nokutshala imali emishini yesimanje yokubumba, abakhiqizi abanjengo-HEBEI UNNA METAL TECHNOLOGY CO.,LTD. bahlinzeka njalo ngezingxenye ezisezingeni eliphezulu zemishini yokubumba ezihlangabezana nezidingo eziqinile zamakhasimende abo ezimbonini.

Izingxenye zokubumba ama-valve azidingeki kakhulu emikhakheni eminingi ehlukahlukene, ngayinye inezidingo ezihlukile zokusebenza ezithinta ukukhethwa kwezinto, umklamo, nendlela yokukhiqiza. Emkhakheni kawoyela negesi, ama-valve ensimbi abunjwe njengama-gate valves, ama-globe valves, nama-check valves asetshenziswa kakhulu ekuhloleni okungaphezulu, emapayipini aphakathi, nasezinhlelweni zokuhlanza ezingezansi, lapho kufanele zimelane namandla aphezulu, izinga lokushisa elidlulele, nama-hydrocarbons abola kalula. Izinga le-api 600 gate valve libaluleke kakhulu lapha, njengoba lihlinzeka ngezincazelo eziphelele zama-gate valves ensimbi ahloselwe izinsizakalo zikawoyela negesi, liqinisekisa ukuthi izingxenye zokubumba ama-valve ziletha ukuvalwa okuthembekile nokuhlanganiswa okunamandla ngaphansi kwezimo ezinzima. Izindawo zokwelapha amanzi nodoti zithembele kuma-valve amakhulu ensimbi, okuhlanganisa nama-ci foot valve assemblies, ukulawula amaphampu, ukuvimbela ukugeleza okubuyayo, nokulawula ukugeleza emakhethini okusabalalisa nasezinhlelweni zokwelapha. Umkhakha wokucubungula amakhemikhali ufuna izingxenye zokubumba ama-valve ezenziwe ngama-alloys akwazi ukumelana nokubola njengensimbi engagqwali, i-Hastelloy, noma i-titanium ukuze kubhekwane namacidi anolaka, ama-alkalis, nama-solvents ngaphandle kokubola noma ukungcola kwezinto eziqhubekayo.

Izitshalo zokukhiqiza amandla, okubandakanya izitshalo zamalahle, izitshalo zenuzi, kanye nezitshalo zamandla avuselelekayo, zisebenzisa izingxenye zamalulwane ezifakwe emishini ukulawula umusi, izinhlelo zamanzi okupholisa, kanye nezicelo zokuphatha uphethiloli lapho ukwethembeka nokuphepha kubaluleke kakhulu. Izicelo zasolwandle kanye nokwakhiwa kwemikhumbi zidinga izingxenye zamalulwane ezifakwe emishini ezimelana nokugqwala kwamanzi olwandle kanye nokungcola kwamagciwane, okuholela ekusetshenzisweni kabanzi kwamalulwane enziwe ngobhedu, ubhedu lwe-nickel-aluminum, kanye nensimbi engagqwali ye-duplex ezinhlelweni zamalulwane ezisetshenziselwa ukugcwalisa nokukhipha amanzi, imishayo yomlilo, kanye nemijikelezo yokupholisa injini. Izimboni zamaphilisi kanye nokucubungula ukudla nazo zizuza ezingxenyeni zamalulwane ezifakwe emishini ngokunemba, ikakhulukazi lezo ezenziwe ngensimbi engagqwali enezindawo ezibushelelezi ukuze kuhlangatshezwane nezindinganiso eziqinile zokuhlanzeka nokulula ukuhlanza. Kulo lonke lezi zimboni, ukukhetha phakathi kwelulwane lensimbi, ilulwane yensimbi, noma ilulwane yensimbi ekhethekile kuthinta ngqo ukusebenza kohlelo, izikhathi zokugcinwa, kanye nezindleko zokuba nomnikazi isikhathi eside sempilo yomshini. Ngokubambisana nezimboni ezineziqu ezifana ne-HEBEI UNNA METAL TECHNOLOGY CO.,LTD., abasebenzisi bokugcina bangathola izingxenye zamalulwane ezifakwe emishini ezenziwe ngokwezifiso eziklanyelwe ukuba zisebenze kahle ezindaweni zazo ezithile zokusebenza, noma ngabe lokho kuhilela ukufakwa ngaphansi kwamanzi olwandle, imigqa yomusi eshisayo kakhulu, noma izinqubo zamakhemikhali ezonakalisa. Ukuguquguquka kwezingxenye zamalulwane ezifakwe emishini kuqinisekisa ukuthi zihlala ziyisisekelo sezinsiza zezimboni zesimanje emhlabeni wonke.

Izinsimbi ezibunjiwe (cast iron) nezinsimbi ezibunjiwe zensimbi (cast steel) yizona izinhlobo zezinto ezivame kakhulu ezisetshenziselwa izingxenye ezibunjiwe zamavalvu, kodwa ziyahluka kakhulu ezicini zemishini nokufaneleka kwezicelo. Izinsimbi ezibunjiwe zinikeza amandla amahle kakhulu okucindezela, ukumelana nokuguga, nokulungiseka kalula ngendleko ephansi, kodwa zinokunwebeka okulinganiselwe nokumelana nomthelela uma kuqhathaniswa nensimbi. Insimbi ebunjiwe inikeza amandla aphezulu okudonsa, ukwelulwa okungcono, nokuba namandla angcono kakhulu, okwenza ibe yisinqumo esikhethwayo ezinsizeni ezinomfutho ophezulu kanye nezinga lokushisa eliphezulu. Ezicelo zamanzi ezijwayelekile kanye nezingcindezi eziphansi, ivalvu yensimbi eyenziwe ngensimbi (iron valve) ivame ukuba yanele futhi ingabizi kakhulu. Kodwa-ke, ezinsizeni ezibalulekile njengezihlanganiswa nejubane le-api 600 gate valve, insimbi ebunjiwe (cast steel) ivame ukudingeka ukuze kuhlangatshezwane nezidingo eziqinile zemishini nezokuphepha. Ukukhetha kugcina kuncike kwingcindezi ethile, izinga lokushisa, kanye nezimo zemidiya zesicelo esihloselwe sona.

Ukuqinisekiswa kwekhwalithi ezingxenyeni zokubumba amavalvu kuhilela izendlalelo eziningi zokulawula kuyo yonke imijikelezo yokukhiqiza, kusukela ekuqinisekisweni kwezinto eziluhlaza kuya ekuhlolweni kokugcina nasekuvivinyweni. Izindawo zokubumba ezihlonishwayo zenza ukuhlaziywa kwamakhemikhali nokuhlolwa komshini kuwo wonke ama-heat emetali ukuze kuqinisekiswe ukuthobela izindinganiso zezinto ezisebenzayo ngaphambi kokuba kuqale ukubumba. Phakathi nangemva kokubumba, izindlela zokuhlola ezingonakalisi njengemisebe ye-radiography, ukuhlolwa kwe-ultrasonic, ukuhlola izinhlayiya zamagnetic, nokuhlolwa kwe-liquid penetrant zisetshenziswa ukuthola ukuphazamiseka kwangaphakathi nangaphezulu. Ukuhlola ubukhulu kusetshenziswa imishini yokulinganisa ye-coordinate namagajini e-go/no-go kuqinisekisa ukuthi ingxenye ngayinye ihambisana namathuluzi acacisiwe. Ukuhlolwa kwengcindezi, okuhlanganisa izivivinyo ze-hydrostatic ne-pneumatic, kuqinisekisa ubuqotho bokubamba ingcindezi bezingxenye zokubumba amavalvu. Abakhiqizi abaningi, okubandakanya i-HEBEI UNNA METAL TECHNOLOGY CO.,LTD., baphinde basebenzise izinhlelo zokulandelela ezilandelela njalo ukubumba kusukela ezintweni eziluhlaza kuze kube ukwelashwa ngokushisa nokucubungula kuze kube ukuthunyelwa kokugcina.

I-ci foot valve iwuhlobo lwe-check valve eyenziwe ngensimbi eshayiwe efakwa phansi komugqa wokudonsa we-pump ukuze kugcinwe i-prime futhi kuvinjelwe ukubuyela emuva lapho i-pump ingasebenzi. Igama elithi "ci" lisukela ku-cast iron, enikeza ukuqina okuhle nokumelana nokugqwala ngezindleko ezifanele zezicelo zamanzi nodoti. Lezi zingxenye zokubumba i-valve ngokuvamile zine-strainer ekungeneni ukuze kuvinjelwe udoti ukuthi lungangeni ku-pump futhi lungonakalisi izingxenye zangaphakathi. Ama-ci foot valve avame ukusetshenziswa ekuniseni ezolimo, ekuhlinzekeni ngamanzi emadolobheni, eziteshini zokumpompa zezimboni, nasemigudwini yokuvikela umlilo. Ukuvalwa kwawo okuthembekile nokwakhiwa kwawo okuqinile kwenza kube yisixazululo esisebenza kahle ukuze kuqinisekiswe ukusebenza kahle kwe-pump nokuqhubeka kokusebenza ezicelo zokudonsa ezimile.

Izingxenye zokudonsa amavalvu zenziwa ngokuhambisana namazinga ahlukahlukene omhlaba wonke achaza izimfanelo zezinto, izilinganiso zobukhulu, izinqubo zokuhlola, nemibandela yokusebenza. Isibonelo, izinga le-api 600 gate valve, lilawula amavalvu esango ensimbi ezimbonini zikaphethiloli negesi yemvelo, elihlanganisa ukuklama, izinto, izilinganiso zengcindezi, nokuhlolwa. Amanye amazinga abalulekile ahlanganisa i-ASTM A216 yamavalvu ensimbi yekhabhoni, i-ASTM A351 yamavalvu ensimbi engagqwali, i-ASTM A126 yamavalvu ayinhlaka, kanye ne-ISO 5208 yokuhlolwa kwengcindezi yamavalvu. Abakhiqizi bangase futhi bahambisane namakhodi esifunda njenge-ASME B16.34 ngobukhulu bamavalvu nezilinganiso zengcindezi-lokushisa. Ukuthobela la amazinga kunikeza isiqinisekiso sokuthi izingxenye zokudonsa amavalvu zizosebenza ngokuthembekile nangokuphepha ezimweni zazo ezihloselwe ukusebenza kuzo, futhi izinhlangano eziqinisekisayo zivame ukuhlola izindawo zokudonsa ukuze ziqinisekise ukuthobela okuqhubekayo.

Isikhathi sokulinda izingxenye zokudonsa zamavalvu ngokwezifiso siyahlukahluka kuye ngokuyinkimbinkimbi yomklamo, indlela yokudonsa ekhethiwe, izidingo zezinto, kanye nohlelo lokukhiqiza lwamanje lwefektri. Ezintweni ezilula zokudonsa zamavalvu ezinsimbi ezidonswe ngesihlabathi, ukwakhiwa kwamathuluzi kungathatha amasonto amabili kuya kwamane, kulandelwe amanye amasonto amabili kuya kwamane okwesampula nokuhlolwa kokuqala kwento. Izingxenye eziyinkimbinkimbi kakhudlwana njengomzimba wevalvu yesango ye-api 600 eyenziwe ngensimbi ye-alloy kungadinga amasonto ayisithupha kuya kwayishumi nambili kusukela ekwenzeni iphetheni kuze kube yilapho kuqedwa, kuhlolwe ukudonsa. Izinto ezingandisa izikhathi zokulinda zihlanganisa isidingo sokwelashwa okukhethekile kokushisa, ukuhlolwa okuningiliziwe okungachithwa, noma ukuhlolwa kokuqeqesha izinto ezintsha. Amafektri amaningi, okubandakanya i-HEBEI UNNA METAL TECHNOLOGY CO.,LTD., ahlinzeka ngezinsizakalo ezisheshayo zamaphrojekthi aphuthumayo futhi asebenza eduze namakhasimende ukusungula izikhathi zokulethwa ezingokoqobo. Ukubandakanyeka kusenesikhathi nomhlinzeki wokudonsa kanye nokuxhumana okucacile kwezidingo zobuchwepheshe yizindlela ezinhle kakhulu zokunciphisa izikhathi zokulinda nokugwema ukubambezeleka okungalindelekile ekuthengeni izingxenye zokudonsa zamavalvu.

Ukuze uthole ulwazi olwengeziwe mayelana namakhono ethu okukhiqiza kanye nohlu lwemikhiqizo yethu, sicela uvakashele i-Ikhaya ikhasi, hlola ukukhethwa kwethu okubanzi kwezingxenye ku-Imikhiqizo ikhasi, noma ufunde kabanzi ngomlando wenkampani yethu ku-Mayelana Nathi ikhasi.