Udinga ivalvu enamandla kunento enye kodwa engaxabisi njengeyesithathu. Ukukhetha engalunganga kuthetha ukuhlawula kakhulu okanye ukufumana ivalvu ongenakuyilungisa xa kufuneka.

Ivalvu yebhola enamacandelo amabini inamalungu amabini omzimba ayintloko adibanisa, abambe ibhola aze ayivale ngaphakathi. Olu yilo luqinile kunevalvu enecandelo elinye kwaye luvumela ukulungiswa, nangona kufuneka kuqala isuswe kumbhobho.

Ivalvu yebhola enamacandelo amabini yeyona nto isebenzayo kwihlabathi lemibhobho. Yenye yezona ndlela zixhaphakileyo endizixoxa ngazo namaqabane am, njengoBudi, umphathi wokuthenga eIndonesia. Abathengi bakhe, uninzi lwabo bangabakhi kunye nabasasazi ngokubanzi, bafuna isisombululo esithembekileyo nesingabizi kakhulu kwimisebenzi yemihla ngemihla. Uyilo olunamacandelo amabini lufikelela kwindawo entle ngokugqibeleleyo. Inika uphuculo olukhulu lwamandla kunye nenkonzo ngaphezu kweevalvu ezisisiseko ngaphandle kweendleko eziphezulu zeemodeli zemizi-mveliso ezintsonkothileyo. Ukuze uqonde ngokwenene ixabiso layo, kufuneka ubone apho ingena khona kumfanekiso omkhulu.

Yintoni ivalvu enamacandelo amabini?

Ungayibona ithungo apho umzimba wevalvu udityaniswe khona, kodwa oko kuthetha ukuthini? Ukuqonda ulwakhiwo lwayo kubalulekile ekwazini ukuba lukhetho olufanelekileyo kwimpilo yexesha elide yenkqubo yakho.

Ivalvu enamacala amabini inomzimba oyintloko kunye nenxalenye yesibini, isixhumi sokugqibela, esiyifaka ngentambo. Olu qhagamshelo olunemisonto lugcina ibhola kunye nezihlalo, nto leyo eyenza ivalvu ikwazi ukusebenza kwaye imelane noxinzelelo kunokuba ibe yidizayini yenxalenye enye.

Ukwakhiwa kweivalvu enamacandelo amabiniluphawu lwayo oluphambili. Khawuthelekelele umzimba wevalvu wenziwe ngamacandelo amabini. Icandelo elikhulu libamba isiqu kunye nesiphatho, ngelixa icandelo elincinci ngokuyintloko liyisiciko esinemisonto. Xa zidibene, zibamba ibhola kunye nezihlalo ezithambileyo (ezidla ngokwenziwa nge-PTFE) ezenza isitywino. Olu yilo lomzimba onemisonto lunamandla kakhulu kunevalvu yenxalenye enye, apho ibhola ifakwa khona ngomngxuma omncinci, idla ngokufuna ibhola encinci (izibuko elincitshisiweyo). Ulwakhiwo lweziqwenga ezimbini luvumela ibhola enkulu, "izibuko elipheleleyo", oko kuthetha ukuba umngxuma ebholeni ulingana nombhobho, okukhokelela ekuphumeni okungcono ngaphandle kokulahlekelwa nguxinzelelo oluncinci. Ukuba isitywino siyaphela, ungayikhulula umzimba, utshintshe iindawo, kwaye uyibuyisele kwinkonzo. Liyindawo entle ephakathi kwabathengi abaninzi baseBudi abafuna ivalvu eqinileyo kwaye enokulungiswa.

Yintoni umahluko phakathi kwevalvu yebhola yohlobo 1 kunye nevalvu yebhola yohlobo 2?

Uva amagama anje ngo “Uhlobo 1″ kunye no “Uhlobo 21″ kodwa awuqinisekanga ukuba athetha ukuthini. Ukukhetha ngokusekelwe kula magama ngaphandle kokuwaqonda kunokuthetha ukuphoswa ziimpawu zokhuseleko ezibalulekileyo.

La magama awabhekiseli kulwakhiwo lomzimba (njengeziqwenga ezibini) kodwa kwizizukulwana zoyilo, ezidla ngokuba ziivalvu zokwenyani zomanyano. I-“Type 21″ sisishwankathelo seshishini soyilo lwanamhlanje oluneempawu zokhuseleko eziphuculweyo kunye nokusetyenziswa.

Kubaluleke kakhulu ukungadibanisi isitayile somzimba nala manani "ohlobo". Ivalvu "yeziqwenga ezibini" ichaza indlela umzimba owakhiwe ngayo ngokwasemzimbeni. Amagama anje "ngohlobo 21," kwelinye icala, achaza iseti ethile yeempawu zanamhlanje, kwaye phantse ahlala efumaneka kwiivalvu ze-union ze-three-piece true. Kufuneka ndicacise oku kwiqela likaBudi ngamanye amaxesha. Umthengi unokucela"Ivalvu yohlobo lwe-21 enamacandelo amabini,"kodwa ezo mpawu ziyinxalenye yodidi olwahlukileyo lwevalvu. Eyona nto ibalulekileyo kwisitayile seType 21 yii-union nut ekhuselekileyo kwiibhloko, nto leyo ethintela ivalvu ukuba ingavulwa ngengozi ngelixa inkqubo iphantsi koxinzelelo. Olu luphawu olubalulekileyo lokhuseleko. Zikwaquka ii-O-rings ze-double stem zokuvala isiphatho ngcono kunye ne-mounting pad eyakhelwe ngaphakathi yokongeza i-actuator. Ezi ziimpawu zeprimiyamu kwimisebenzi enzima kakhulu, ngelixa ivalvu eqhelekileyo enamacandelo amabini ilukhetho oluthembekileyo lomsebenzi oqhelekileyo.

Isetyenziselwa ntoni ivalvu yebhola eneendlela ezimbini?

Udinga nje ukuyeka okanye uqalise ukuhamba kwamanzi. Ngenxa yokuba kukho zonke iintlobo zeevalvu ezintsonkothileyo ezikhoyo, kulula ukwenza isisombululo sibe nzima kakhulu kwaye uchithe imali eninzi kwizinto ezingabalulekanga emsebenzini.

Ivalvu yebhola enamacala amabini isetyenziselwa ulawulo olusisiseko lokuvula/ukucima kwipayipi ethe tye. Ineendawo ezimbini zokungena kunye nendawo yokuphuma - kwaye ibonelela ngendlela elula nethembekileyo yokuvala ukuhamba kwamanzi kwiizicelo ezininzi.

Ivalvu eneendlela ezimbini lolona hlobo luqhelekileyo lwevalvu ekhoyo. Yenza umsebenzi omnye: iyahlukanisa ukuhamba kwamanzi. Cinga ngayo njengesibane sokukhanyisa amanzi—ivuliwe okanye icinyiwe. Uninzi lweevalvu zebhola oza kuzibona, kuquka phantse zonke iivalvu ezineenxalenye ezimbini, ziivalvu ezineendlela ezimbini. Ziyintsika yeenkqubo zombhobho kuyo yonke indawo. Uzisebenzisa ukuvala amanzi kwindawo yokutshiza, ukwahlula isixhobo sokulungisa, okanye njengokuvala okuphambili kwesakhiwo. Ukulula kwazo ngamandla azo. Oku kwahlukile kwiivalvu ezineeport ezininzi, njengevalvu eneendlela ezintathu, ezenzelwe ukujika ukuhamba kwamanzi, njengokuthumela amanzi kwindlela ethile okanye kwenye. Kwi-95% yemisebenzi abathengi bakaBudi abajongene nayo, ivalvu yebhola elula, eqinileyo, eneendlela ezimbini sisixhobo esifanelekileyo. Uyilo lweziqwenga ezimbini lukhetho oluhle kakhulu noluqhelekileyo kulo msebenzi usisiseko.

Yintoni umahluko phakathi kwevalvu yebhola yeqhekeza elinye kunye nevalvu yeqhekeza ezintathu?

Ukhetha phakathi kwevalvu ebiza kancinci neyona ibiza kakhulu. Ukwenza ukhetho olungalunganga kuthetha ukuba awunakuyilungisa ingxaki okanye uchithe imali kwizinto ongasoze uzisebenzise.

Umahluko ophambili kukuba iyasebenza na. Ivalvu eneqhekeza elinye yiyunithi evaliweyo nelahlwayo. Ivalvu eneqhekeza ezintathu ingalungiswa ngokulula ngelixa isaqhagamshelwe kumbhobho. Ivalvu eneqhekeza ezimbini ihlala embindini.

Ukuqonda ukhetho lwe-one-piece kunye ne-three-piece kubonisa ngokwenene ukuba kutheni i-two-piece valve ithandwa kangaka.ipisi enyeIvalvu yenziwe ngomzimba omnye, nto leyo eyenza kube nzima ukuyivula xa ilungiswa. Yinto "yokusebenzisa nokutshintsha" engcono kakhulu kwimigca engengomsebenzi ubalulekileyo. Kwelinye icala kukhoivalvu enamacandelo amathathu. Inomzimba ophakathi kunye nezihlanganisi ezimbini ezahlukeneyo ezibanjwe kunye ngamabholiti amade. Olu yilo lukuvumela ukuba ususe lonke icandelo eliphakathi levalvu ukuze utshintshe izitywini ngaphandle kokunqumla umbhobho. Olu lolona khetho luphezulu kwizityalo zoshishino okanye kumadama orhwebo apho ixesha lokungasebenzi libiza kakhulu.iziqwenga ezimbiniIvalvu inika ulungelelwaniso olufanelekileyo. Iqinile ngakumbi kwaye idla ngokuba nokuhamba okungcono kunevalvu enye, kwaye iyalungiseka. Nangona kufuneka uyisuse emgceni ukuze uyilungise, loo nto iyamkeleka ngokupheleleyo ngexabiso layo eliphantsi xa ithelekiswa nevalvu eneziqwenga ezintathu.

Uthelekiso lohlobo lomzimba wevalvu

Isiphelo

A ivalvu yebhola enamacandelo amabiniyinkqubo yokusebenza ethembekileyo nenokulungiseka. Inika ulungelelwano olugqibeleleyo lwamandla kunye nexabiso phakathi kwesixhobo esinye esilahlwayo kunye noyilo oluneenkonzo eziphezulu, oluneziqwenga ezintathu kwiintlobo ezininzi zezicelo.