Ukucatshangelwa kokukhethwa kohlobo lwe-valve Izinto ezivamile zokukhethwa kohlobo lwama-valve angenisiwe

Ukucatshangelwa kokukhethwa kohlobo lwe-valve Izinto ezivamile zokukhethwa kohlobo lwama-valve angenisiwe

I.I-valve yokulawula kagesi
Impahla yomzimba ye-valve (noma impahla yepayipi), ingcindezi encane, ingcindezi yokusebenza (i-valve yangaphambili nomehluko wengcindezi yokuvala), enquma ukuthi kufanele kusetshenziswe isihlalo esisodwa noma i-valve yomkhono, ububanzi be-valve (DN), okuphakathi nendawo nezinga lokushisa, i-actuator kagesi ngaphandle kwezidingo. , i-voltage-proof-proof. Isiginali yokulawula (ngokuvamile i-4-20mA), izici zethrafikhi azidingeki, ikhasimende alinazo izidingo ezikhethekile. I-valve yokulawula kagesi i-stroke eqondile kanye ne-Angle stroke (i-valve yebhola, i-butterfly valve) amabili. Ayahluka ngokuthi imivimbo yomugqa inembe kakhulu, iyashesha, futhi ingalungiswa ngezinhlobonhlobo zamafrikhwensi. Kodwa ukunemba kokunyakaza kwe-Angle akulungile, isivinini sokunyakaza sihamba kancane nokunye. Okucacile kungabhekisa ezidingweni zekhasimende.
I-valve yebhola kagesi kanye ne-butterfly valve
Impahla yomzimba, ingcindezi yokusebenza, imodi yokuxhuma (i-valve yebhola engaphansi kwe-DN 50* uxhumano olucushiwe, uxhumano lwe-flange lwe-DN 50), ububanzi be-valve (DN), ububanzi be-valve butterfly can kuphela ** i-DN encane 40. Ngesikhathi esifanayo, uvemvane I-valve inezinhlobo ezimbili zokuxhuma: uhlobo lwesiqeshana nohlobo lwe-flange. UHLOBO KANYE nezinga lokushisa le-medium (izinga lokushisa linquma ukusetshenziswa kwezinto zokuvala, uhlobo lwe-medium lusetshenziselwa ukunquma ukuthi i-valve ivalwe nge-alloy eqinile noma ithambile), i-valve ivuliwe noma ivaliwe (uhlobo lokushintsha lungavulwa kuphela futhi ivaliwe endaweni, uhlobo lokulungiswa lungavula i-valve kunoma yikuphi ukuvulwa, ukugeleza kungalungiswa).
Ezintathu. I-valve yokulawula umoya
Impahla yomzimba (noma impahla yepayipi), ukucindezela okuzisholo, ingcindezi yokusebenza (ingcindezi yangaphambi kwe-valve kanye nomehluko wengcindezi eseduze, onquma ukuthi kufanele kusetshenziswe isihlalo esisodwa noma i-valve yomkhono), ububanzi be-valve (DN), uhlobo oluphakathi nendawo nezinga lokushisa, kungakhathaliseki ukuqhuma . Ukuthi izici zokugeleza ziyadingeka noma cha, umoya ovulekile noma uvaliwe. Isignali yokulawula indawo (ngokuvamile okokufaka okungu-4-20mA, uma isignali yempendulo ephumayo idingeka, bese ubala inani, intengo yalesi sikhundla ibiza kakhulu kunentengo * yokufaka), mangaki amakhilogremu okucindezela kokuphakelwa komoya. I-valve yebhola kanye ne-butterfly valve nayo ingashintshwa ngemva kokufakwa kwesimo, esingabizi kakhulu kune-stroke eqondile kodwa enembile kancane. Ifanele ukulungiswa kwe-***.
I-valve yebhola le-pneumatic kanye ne-butterfly valve
Izesekeli ezijwayelekile ze-pneumatic switch valve: i-solenoid valve, inkinobho yomkhawulo, ukucubungula umthombo womoya izingxenye ezintathu.
Izesekeli ezijwayelekile zevalvu yokulawula umoya: i-valve positioner gas source processing izingxenye ezimbili
Impahla ye-valve, ingcindezi yokusebenza kwe-valve, i-valve medium kanye nezinga lokushisa, uma kuwuhlobo lokushintsha, udinga ukubuza i-voltage ye-valve ye-solenoid (ngokuvamile i-AC220V ne-DC24V ngokuzikhethela, inani elifanayo), i-valve yebhola yomoya kanye nesilinda sovemvane ihlukaniswe yaba izinhlobo ezimbili (eyodwa iyodwa, ivalvu ivuliwe noma ivaleke, ivalve ivaleke noma ivuleke ivaleke ngokuzenzakalelayo; enye isenzo esiphindwe kabili, i-valve ingena umoya noma ivaliwe, i-valve iphinda ingene komoya noma ivuleke.) I-valve yovemvane idinga ukubuza uhlobo lwe-clamping, uhlobo lwe-flange , uhlobo lwe-welding, njll. Ngokufanayo, uhlobo lwe-mediumtemperature lunquma impahla yomzimba kanye nempahla yokuvala. (I-VALVE YEBHOLA NGOKUVAMILE IVAMELE NGE-TEFLON, izinga lokushisa lokusetshenziswa lingaphansi kwama-degree angu-130, lingasetshenziselwa noma yisiphi isimo sokugqwala, AMADEGREE angu-130 PHEZULU ANGAsetshenziselwa i-TEfloN ethuthukisiwe, ama-degree angu-220 ngenhla angavalwa kanzima kuphela, I-BUTERFLY valve CAST IRON MATERIAL IS. IVAMISE ivalwe ngenjoloba, insimbi engagqwali kanye ne-Stainless STEEL ivamise ukuvalwa nge-TEflON (PTFE) amavalvu ovamvane abaqinile ajwayele ukusetshenziswa njengezigxivizo eziqinile ezinwebekayo kangcono kune-elastic seal.
Ezinhlanu. I-valve ye-Solenoid
I-valve ye-Solenoid ezidingweni eziphakathi ziqinile kakhulu, ngakho-ke kuyadingeka ukubuza okuphakathi, imodeli kanye nezinga lokushisa. Uma kukhona ukungcola nezinhlayiya, indaba emisiwe kanye ne-viscosity (isampula yeglue), i-valve ye-solenoid ayikwazi ukusetshenziswa, ungakhetha enye i-valve. Ingakanani i-voltage ekhona (intengo ye-AC220V noma i-DC24V ingase ihluke), ngokuvamile ivuliwe noma ivaliwe (imvamisa ivuliwe yilapho i-valve ishiya imboni, amandla avaliwe, ngokuvamile kuvame okuphambene). Iyini ingcindezi yokusebenza kwe-valve (lokhu kubalulekile), imodi yokuxhuma (imvamisa ngama-flanges nemicu).
Ngenisa ukukhethwa kwe-valve yezinto ezivamile
Kunezici eziningi okufanele zicatshangelwe ekukhetheni ama-valve angenisiwe, kodwa ngokusho kwesiqondiso se-valve fluid, ukulawulwa kokugeleza kwe-valve, nezici ze-medium okufanele zikhethwe, ngokuvamile kuyisici esibalulekile okufanele sicatshangelwe; Kuhlanganiswe ne-German Lit-LIT brand valve, ukuhlaziya ukukhethwa kwezinto
Amavalvu okusika nokuvula imidiya
Isiteshi sokugeleza siyi-valve eqondile, i-valve ye-butterfly yokungenisa evame ukusetshenziswa, i-valve yesango lokungenisa, i-valve yebhola yokungenisa, njll., ukumelana nokugeleza kuncane, okuvame ukukhethwa njengendlela yokusika nokuvula nge-valve. Futhi i-valve evalekile eyehlayo (ngenisa i-globe valve, i-plunger valve) ngenxa yendlela yayo yokugeleza ebuhlungu, ukumelana nokugeleza kunamanye ama-valve, ngakho-ke ukukhetha okuncane. Ekuvumeleni ukumelana nokugeleza okuphezulu, okufana nendawo yokudlulisela ngesikhathi segesi kungakhethwa iveluvu evaliwe. Ekukhetheni i-valve butterfly engenisiwe, lapho indawo yokudlulisela inokungcola okuningi, njengamanzi aluhlaza noma ukuthuthwa kwendle, i-valve butterfly evundlile kufanele ikhethwe, ngoba i-valve shaft ivundlile, phansi kwe-flow passage akulula ukuqoqa udoti. kanye nesikali, ukuvikela indandatho yokuvala ipuleti le-valve; Noma khetha i-valve ye-butterfly ye-hard seal yaseJalimane, ingaqinisekisa ukuvala nokugqoka ukumelana, impilo yesevisi. Ama-valve esango kufanele futhi akhethwe kude ngangokunokwenzeka ngaphandle kwemigodi ngaphansi kwephaseji ye-valve ukugwema ukuvuza okubangelwa ukunqwabelana kwemfucumfucu emgodini.
Okwesibili, lawula ukugeleza kwe-valve
Ngokuvamile khetha okulula ukulungisa ukugeleza kwe-valve njengokugeleza kokulawula, owaziwa nangokuthi umlawuli wokungenisa. Amavalvu OKUVALA abheke phansi (njengamavalvu e-GLOBE) AYIfanele Le Nhloso NGOBA Usayizi WeSIHLALO ULINGANISANA NE-STROKE YOKUVALA. AMAVAVAVA Ajikelezayo (i-rotary PLUG, uvemvane, amavalvu ebhola) nama-FLEXure BODY VALVES (I-PINCH, I-DIAPHRAGM) AYATHOLAKALA NAWO UKULAWULWA OKUTHROTTLING, kodwa IVAMILE KUPHELA ebangeni elilinganiselwe lama-valve DIAMEter. I-VALVE yesango Isango elimise okwediski eliya embobeni yesihlalo esiyindilinga ukuze lenze ukunyakaza okuphambene, liseduze kuphela nendawo evaliwe, lingalawula kangcono ukugeleza, ngakho ngokuvamile alisetshenziselwa ukulawula ukugeleza.
Okwesithathu, i-shunt valve ehlehlisayo
I-valve ingaba namashaneli amathathu noma ngaphezulu, kuye ngesidingo sokuhlehla nokuphambukisa. Ama-valve okuxhuma nebhola afaneleka kakhulu kule njongo, ngakho-ke, ama-valve amaningi asetshenziselwa ukuhlehla nokuphambukisa akhethwa njengenye yala mavalvu. Kodwa-ke, KWEZINYE IZIMO, ezinye IZINHLOBO ZAMAVAVAZI ZINGASE NAZO ZISETSHENZISWA NJENGEZIPHUMZI ZOhambo lokuya emsebenzini, INqobo nje kokuthi AMAVAVA AMABILI noma AMANINGI Axhumeke ngokufanele kwelinye. Isibonelo, thatha i-valve ye-Litt LIT yaseJalimane njengesibonelo, i-valve ye-inlet ye-three-way-ball valve, i-valve yepulaki ye-inlet yendlela-ntathu, i-valve yebhola yezindlela ezintathu ihlukaniswe ngohlobo lwe-T no-L.
4. Amavalvu aphakathi nendawo anezinhlayiya ezimisiwe
Uma kunezinhlayiya ezimisiwe phakathi nendawo, kufanelekile ukusebenzisa izingxenye zayo zokuvala eduze kwendawo yokuvala ye-valve eshelelayo ngesenzo sokusula. Uma ukunyakaza kokuvala ukuya nokubuya esihlalweni kumi mpo, izinhlayiya zingase zibambeke. Ngakho-ke, Ivalvu IFANELE KUPHELA UKUSETYENZISWA KWEZINDABA EZIHLANZEKILE NGOKUJWAYELEKILE NGAPHANDLE NGAPHANDLE KOKUBA INDAWO YOKUVALA IKUVUMELA UKUHLANGANISA IZIQINISEKISO. Ama-valve ebhola nama-plug valve asula indawo yokuvala ngesikhathi sokuvula nokuvala, ngakho afaneleka ukusetshenziswa kumidiya enezinhlayiya ezimisiwe. Kunconywa ukukhethwa kwe-LITT LIT, kusetshenziswa i-valve yesango lommese ongenisiwe, ivalve yebhola engu-V engenisiwe.