Kufuneka ukhethe i-valve yebhola, kodwa iindidi zinzima. Ukukhetha uhlobo olungalunganga lunokuthetha ukungafihli kakuhle, ukuvuza okuzayo, okanye inkqubo enzima ukuyigcina.
Iindidi ezine eziphambili zeevalvu zebhola zihlelwa ngokwakhiwa kwemizimba yazo: isiqwenga esinye,iziqwenga ezibini, iziqwenga ezintathu, kunye nokungena okuphezulu. Uyilo ngalunye lunikeza ibhalansi eyahlukileyo yexabiso, amandla, kunye nokulula ukulungiswa, ukulungelelanisa kwizicelo ezithile kunye neemfuno zokugcinwa.
Ukuqonda ezi ntlobo zisisiseko linyathelo lokuqala, kodwa sisiqalo nje. Ndihlala ndiba nale ncoko noBudi, umphathi ophambili wokuthenga endisebenzisana naye eIndonesia. Abathengi bakhe babhideka siso sonke isigama. Ufumanisa ukuba xa ekwazi ukuchaza umahluko ongundoqo ngendlela elula, abathengi bakhe baziva bezithembile ngakumbi. Banokusuka ekubeni bangaqinisekanga baye ekwenzeni ukhetho lweengcali, nokuba bathenga ivalve elula yomgca wokunkcenkceshela okanye intsonkothe ngakumbi yenkqubo yoshishino. Makhe sichaze ukuba ezi ntlobo zithetha ntoni kuwe.
Zeziphi iintlobo ezahlukeneyo zeevalvu zebhola?
Ubona amagama afana “nezibuko elipheleleyo,” “i-trunnion,” kunye “nebhola edadayo” kumaphepha athile. Le jargon yobugcisa yenza kube nzima ukwazi ukuba ufumana umsebenzi ochanekileyo kwiimfuno zakho ezithile.
Ngaphaya kwesimbo somzimba, iivalve zebhola zichwethezwa ngokobukhulu bazo (izibuko elipheleleyo vs. izibuko eliqhelekileyo) kunye noyilo lwebhola lwangaphakathi (edadayo vs. trunnion). Izibuko elipheleleyo liqinisekisa ukuhamba okungathintelwanga, ngelixa uyilo lwe-trunnion lubamba uxinzelelo oluphezulu kakhulu.
Masingene nzulu kumzimba kunye neentlobo zangaphakathi. Ulwakhiwo lomzimba lumalunga nokufikelela kwisondlo. Aipisi enyeivalve yiyunithi etywiniweyo; ayibizi kodwa ayinakulungiswa. Aiziqwenga ezibiniumzimba wevalve wahlukana phakathi, ukuvumela ukulungiswa, kodwa kufuneka uwususe kumbhobho kuqala. Olona yilo lugcineke lula luyiloiziqwenga ezintathuivalve. Inxalenye ephakathi equkethe ibhola inokususwa ngokukhupha iibholithi ezimbini, ukushiya ukudibanisa kombhobho. Oku kulungele imigca efuna inkonzo rhoqo. Ngaphakathi, "ichweba" okanye umngxuma kwizinto zebhola. Aizibuko eligcweleyoivelufa inomngxuma olingana nombhobho, idala iqanda lothintelo lokuhamba. Aizibuko elisemgangathweniincinci kancinane, ilungile kwizicelo ezininzi. Ekugqibeleni, phantse zonke iivalvu zebhola zePVC zisebenzisa aibhola edadayouyilo, apho uxinzelelo lwenkqubo lutyhala ibhola ngokukhuselekileyo kwisitulo esisezantsi somlambo ukwenza itywina.
Iintlobo zeValve yeBhola ngokujonga
| Udidi | Uhlobo | Inkcazo | Engcono Kwi |
|---|---|---|---|
| Isimbo somzimba | Amaqhekeza amathathu | Icandelo lombindi lisusa ukuze kube lula ukulungiswa emgceni. | Ukugcinwa rhoqo. |
| Isimbo somzimba | Amaqhekeza amabini | Ukwahlulwa komzimba ukulungisa, kufuna ukususwa. | Ukusetyenziswa ngenjongo ngokubanzi. |
| Ubungakanani Bore | Izibuko elipheleleyo | Umngxuma webhola ulingana nombhobho. | Iinkqubo apho izinga lokuhamba libalulekile. |
| Uyilo lweBhola | Ukudada | Uxinzelelo lunceda ekutywineni; umgangatho wePVC. | Uninzi lwezicelo zamanzi. |
Zeziphi iintlobo ezahlukeneyo zoqhagamshelwano lwevalvu yebhola?
Ufumene ivalve egqibeleleyo, kodwa ngoku kufuneka uyixhume. Ukukhetha indlela yoqhagamshelo engalunganga kunokukhokelela kufakelo olukhohlisayo, ukuvuza okuzingileyo, okanye inkqubo ongenakuyisebenza ngaphandle kwesawha.
Ezona ntlobo zoqhagamshelo zixhaphakileyo kwiivalvu zebhola ziisokethi ze-solvent-weld zebhondi ye-PVC esisigxina, iziphelo ezinemisonto zokudibanisa izinto ezahlukeneyo, iziphelo eziphothiweyo zemibhobho emikhulu, kunye noqhagamshelo lomanyano lokwenyani lokusebenzela ubuninzi.
Uhlobo loqhagamshelwano olukhethayo luchaza indlela ivalve edibanisa ngayo kunye nemibhobho yakho.Isisekookanye "i-slip" yokudibanisa isetyenziselwa umbhobho wePVC, ukudala isigxina, ukuvuza-ubungqina bebhondi usebenzisa i-samente ye-solvent. Oku kulula kwaye kunokwethenjelwa kakhulu.Inentamboimidibaniso (NPT okanye BSPT) ikuvumela ukuba ujije ivelufa kumbhobho othungelweyo, olungele ukudibanisa iPVC kumalungu esinyithi, kodwa ifuna isitywini somsonto kunye nofakelo olunononophelo ukuphepha ukuvuza. Kwimibhobho emikhulu (ngokwesiqhelo ngaphezulu kwe-intshi ezi-2),flangedunxibelelwano lusetyenziswa. Basebenzisa iibholiti kunye ne-gasket ukwenza itywina elomeleleyo, elikhuselekileyo, nelikhutshwa lula. Kodwa ukugcinwa kokugqibela kwimibhobho emincinci, akukho nto ibetha aUmanyano Lwenyaniivalve. Olu yilo lunamandongomane amabini omanyano akuvumela ukuba ususe ngokupheleleyo umbindi wevalve ukuze ulungiswe okanye utshintshwe ngelixa iziphelo zoqhagamshelo zihlala zincanyathiselwe kumbhobho. Yeyona ilungileyo kuwo omabini amazwe: uqhagamshelo oluluqilima kunye nenkonzo elula.
Ukuthelekisa Iintlobo zoQhagamshelwano
| Uhlobo loQhagamshelwano | Ingaba isebenza kanjani | Eyona iSetyenziselweyo |
|---|---|---|
| Isokethi (Inyibilikisi) | Incanyatheliswe kumbhobho wePVC. | Iinkqubo zePVC ezisisigxina, ezinobungqina bokuvuza. |
| Inentambo | Izikrweqe kumbhobho onemisonto. | Ukudibanisa izixhobo ezahlukeneyo; ukuqhaqha. |
| Flanged | Ifakwe phakathi kweeflange zemibhobho emibini. | Imibhobho emikhulu edayamitha; ukusetyenziswa kwamashishini. |
| Umanyano Lwenyani | Izikrufu zokususa umzimba wevalvu. | Iinkqubo ezifuna ulondolozo olulula, olukhawulezayo. |
Zeziphi iintlobo ezahlukeneyo zeevalvu ze-MOV?
Ufuna ukwenza inkqubo yakho ngokuzenzekelayo, kodwa "MOV" ivakala njengesixhobo esintsonkothileyo semizi-mveliso. Awuqinisekanga malunga nomthombo wamandla, iinketho zolawulo, kwaye ukuba iyasebenza kwiprojekthi yakho.
MOV imeleIValve eSebenzayo eneMoto, eyiyo nayiphi na ivalve elawulwa yi actuator. Iindidi ezimbini eziphambili zi-actuator zombane, ezisebenzisa i-motor yombane, kunye ne-pneumatic actuators, ezisebenzisa umoya oxinzelelweyo ukuze usebenze i-valve.
I-MOV ayilohlobo lukhethekileyo lwesivalo; yivalve eqhelekileyo ene actuator exhonywe kuyo. Uhlobo lwe-activator yeyona nto ibalulekileyo.Ii-activators zombanezezona zixhaphakileyo kwiivalvu zebhola zePVC kwiinkqubo zamanzi. Basebenzisa i-motor encinci ukuvula ivalve okanye ivalwe kwaye iyafumaneka kwiivolthi ezahlukeneyo (ezifana ne-24V DC okanye i-220V AC) ukuhambelana nomthombo wakho wamandla. Zifanelekile kwizicelo ezifana neendawo zokunkcenkceshela ezizenzekelayo, idosi yokucoca amanzi, okanye ukuzaliswa kwetanki ekude.Ii actuators zomoyasebenzisa amandla omoya ocinezelweyo ukukrazula isivalo sivuleke okanye sivalwe ngokukhawuleza okukhulu. Zinamandla kakhulu kwaye zithembekile kodwa zifuna icompressor yomoya kunye nemigca yomoya ukuze isebenze. Ngokuqhelekileyo ubabona kuphela kwizityalo ezinkulu zemizi-mveliso apho umoya ocinezelweyo sele uyinxalenye yeziseko zophuhliso. Kuninzi lwabathengi beBudi, ii-actuator zombane zibonelela ngebhalansi efanelekileyo yolawulo, iindleko, kunye nokulula.
Uthini umahluko phakathi kohlobo loku-1 kunye nohlobo lwesi-2 lwevalve yebhola?
Ufunda iphepha elithile kwaye ubone “Udidi lweValve yeBhola engama-21” kwaye awuyazi ukuba ithetha ukuthini na loo nto. Unexhala lokuba usenokuphoswa ziinkcukacha ezingundoqo malunga nokhuseleko okanye ukusebenza kwayo.
Esi sigama sikholisa ukubhekisa kwizizukulwana zokwenene iivalvu zebhola ezisuka kwiimpawu ezithile. "Uhlobo lwama-21" luye lwaba lufutshane kuyilo lwangoku, olusebenza ngokuphezulu olubandakanya ukhuseleko oluphambili kunye neempawu ezisebenzisekayo njenge nut yomanyano ekhuselekileyo.
Amagama “Uhlobo loku-1” okanye “uHlobo lwama-21” ayiyomigangatho yehlabathi kubo bonke abavelisi, kodwa abhekisa kuyilo olunempembelelo olumise imarike. Cinga ngo "uHlobo lwama-21" njengolumele imigangatho yangoku, yepremiyamu yevalvu yomanyano yokwenyani.Xa sasiyila iivalvu zethu zomanyano zePntek, sidibanise imigaqo eyenza oluyilo lube luhle kakhulu. Olona phawu lubalulekileyo luphawuBlock-Safe Union Nut. Le yindlela yokhuseleko apho indongomane inomsonto wokutshixa, nto leyo eyenza kube nzima ukukhulula ngempazamo kwaye uvule inkqubo ngelixa iphantsi koxinzelelo. Oku kuthintela ukuqhushumba okuyingozi. Ezinye iimpawu eziqhelekileyo zolu hlobo zibandakanyaIziqu ezimbini O-amakhonkcoukhuseleko oluphezulu lokuvuza kwisibambo kunye neiphedi yokuxhoma edibeneyo(iqhele ukuya kwinqanaba le-ISO 5211) eyenza kube lula ukongeza i-actuator yombane kamva. Asiyovalve nje; licandelo lenkqubo ekhuselekileyo, ethembekileyo, kunye nobungqina bexesha elizayo.
Ukuqukumbela
Iindidi ezine eziphambili zevalvu zibhekisa kwisitayile somzimba, kodwa ukuqonda kokwenyani kuvela ekwazini izibuko, uqhagamshelo, kunye nokhetho lokusebenzisa. Olu lwazi lukuvumela ukuba ukhethe ivalve egqibeleleyo kuwo nawuphi na umsebenzi.
Ixesha lokuposa: Jul-22-2025
