Ucinga ukuba ivalvu yakho ivumela ukuhamba okuphezulu, kodwa inkqubo yakho ayisebenzi kakuhle. Ivalvu oyikhethileyo isenokuba iyawuminxa umgca, inciphisa uxinzelelo kunye nokusebenza kakuhle ngaphandle kokuba wazi ukuba kutheni.

Ayizizo zonke iivalvu zebhola zePVC ezizii-full port. Ezininzi ziyi-standard port (ekwabizwa ngokuba yi-reduced port) ukonga imali kunye nendawo. I-full port valve inomngxuma olingana nombhobho ukuze kubekho ukuhamba okungenamkhawulo.

Le yinkcukacha ebalulekileyo kuyilo lwenkqubo, kwaye yinto endihlala ndiyixoxa namaqabane am, kuquka neqela likaBudi e-Indonesia. Ukukhetha phakathi kwezibuko ezipheleleyo kunye nezibuko ezisemgangathweni kuchaphazela ngqo ukusebenza kwenkqubo. Kubathengi bakaBudi abangoonkontileka, ukwenza oku ngokuchanekileyo kuthetha umahluko phakathi kwenkqubo esebenza kakhulu kunye nenkqubo engahlangabezani nolindelo. Ngokuqonda lo mahluko, banokukhetha ivalvu yePntek efanelekileyo kuyo yonke imisebenzi, ukuqinisekisa ulwaneliseko lwabathengi kunye nokwakha udumo lwabo ngomsebenzi osemgangathweni.

Ingaba ivalvu yebhola yivalvu egcweleyo?

Udinga ukuhamba okuphezulu kwenkqubo yakho entsha yokumpompa. Kodwa emva kokufakela, ukusebenza kwayo kuyadanisa, kwaye ukrokrela ukuba kukho ingxaki ethile emgceni, mhlawumbi evela kwivalvu yokuvala oyisebenzise.

Ivalvu yebhola inokuba yi-full port okanye i-standard port. Imbobo yevalvu ye-full port (umngxuma) ihambelana nobubanzi bangaphakathi bombhobho ukuze kubekho ukunqongophala komoya. I-standard port incinci ngobukhulu bombhobho omnye.

Igama elithile "izibuko elipheleleyo"(okanye i-full bore) luphawu oluthile loyilo, alungomgangatho oqhelekileyo wazo zonke iivalvu zebhola. Ukwenza olu mahluko kubalulekile ekukhetheni ivalvu ngokufanelekileyo. Ivalvu yesango elipheleleyo yenzelwe ukusebenza kakuhle kokuhamba kwamanzi. Umngxuma osebholeni mkhulu kakhulu ukuze ufane nobubanzi bangaphakathi bombhobho oqhagamshelwe kuwo. Aivalvu yesango eliqhelekileyoNgokwahlukileyo koko, inomngxuma omncinci kunombhobho. Oku kudala umqobo omncinci.

Ngoko ke, kufuneka uyisebenzise nini nganye nganye? Nantsi isikhokelo esilula endisinika amaqabane ethu.

Kwiinkqubo ezininzi zemihla ngemihla, njengomgca wesebe oya kwisinki okanye kwindlu yangasese, ivalvu yesango eqhelekileyo ilungile kwaye ixabisa kancinci. Kodwa kumgca wamanzi oyintloko okanye ukuphuma kwepompo, ivalvu yesango epheleleyo ibalulekile ukugcina uxinzelelo kunye nokuhamba kwamanzi.

Yintoni ivalvu yebhola yePVC?

Udinga indlela elula nethembekileyo yokuthintela amanzi. Iivalvu zesango zakudala ziyaziwa ngokubamba okanye ukuvuza xa uzivala, kwaye udinga ivalvu esebenza ngalo lonke ixesha.

Ivalvu yebhola yePVC yivalvu yokuvala esebenzisa ibhola ejikelezayo enembobo ngaphakathi kwayo. Ukujika ngokukhawuleza kwesiphatho kulungelelanisa umngxuma nombhobho ukuze uwuvule okanye uwujike ngokuchasene nokuhamba kwamanzi ukuze uwuvale.

IIvalvu yebhola yePVCithandwa ngokulula kwayo okumangalisayo kunye nokuthembeka okumangalisayo. Makhe sijonge iindawo zayo eziphambili. Iqala ngomzimba wePVC oqinileyo obamba yonke into kunye. Ngaphakathi kukho intliziyo yevalvu: ibhola yePVC engqukuva enomngxuma ogrunjwe ngokuchanekileyo, okanye "ibholo," embindini. Le bhola iphumla phakathi kweeringi ezimbini ezibizwa ngokuba zizihlalo, ezenziwe ngeI-PTFE (into edumileyo ngegama layo lophawu, iTeflon)Ezi zihlalo zenza isitywina esingangeni manzi nxamnye nebhola. Isiqu sidibanisa isiphatho esingaphandle nebhola engaphakathi. Xa ujika isiphatho ngama-90 degrees, isiqu siyayijikeleza ibhola. Indawo yesiphatho isoloko ikuxelela ukuba ivalvu ivuliwe okanye ivaliwe. Ukuba isiphatho sihambelana nombhobho, sivulekile. Ukuba sithe nkqo, sivaliwe. Olu yilo lulula, olusebenzayo luneendawo ezimbalwa ezishukumayo, yiyo loo nto luthembeke kwiindlela ezininzi emhlabeni jikelele.

Yintoni umahluko phakathi kweevalvu ze-L port kunye neevalvu ze-T port ball?

Iprojekthi yakho ifuna ukuba ujike amanzi, ungawayeki nje kuphela. Uceba uthungelwano oluntsonkothileyo lweepayipi kunye neevalvu, kodwa uvakalelwa kukuba kufuneka kubekho isisombululo esilula nesisebenzayo ngakumbi.

I-L port kunye ne-T port zibhekisa kwimo yembobo kwivalvu yebhola eneendlela ezintathu. I-L port ijika ukuhamba phakathi kweendlela ezimbini, ngelixa i-T port inokujika, ixube, okanye ithumele ukuhamba ngqo.

Xa sithetha ngee-L kunye nee-T ports, sidlulela ngaphaya kweevalvu ezilula zokuvula/ukuvala kwaye singena kwi-iivalvu ezinamachweba amaninziEzi zenzelwe ukulawula indlela yokuhamba kwamanzi. Ziluncedo kakhulu kwaye zinokuthatha indawo yeevalvu ezininzi ezisemgangathweni, zigcine indawo kunye nemali.

Iivalvu zeL-Port

Ivalvu ye-L-port inembobo efana no-“L.” Ine-inlet ephakathi kunye neendawo ezimbini zokuphuma (okanye iindawo ezimbini zokungena kunye nendawo enye yokuphuma). Xa isiphatho sikwindawo enye, ukuhamba kuhamba ukusuka embindini ukuya ekhohlo. Ngokujika kwe-90-degree, ukuhamba kuhamba ukusuka embindini ukuya ekunene. Indawo yesithathu ivala ukuhamba konke. Ayinakudibanisa zonke iindawo zokungena ezintathu ngaxeshanye. Umsebenzi wayo kukuphambukisa nje kuphela.

Iivalvu zeT-Port

A Ivalvu ye-T-portiyakwazi ukusetyenziswa ngeendlela ezahlukeneyo. Imbobo yayo imile njengo-“T.” Ingenza yonke into enokwenziwa yi-L-port. Nangona kunjalo, inendawo yokubamba eyongezelelweyo evumela ukuhamba ngokuthe ngqo kwiimbobo ezimbini ezichaseneyo, njengevalvu yebhola eqhelekileyo. Kwezinye iindawo, inokuqhagamshela zonke iimbobo ezintathu ngaxeshanye, nto leyo eyenza ukuba ilungele ukuxuba ulwelo ezimbini kwindawo enye.

Ngaba iivalvu zeplagi zigcwele i-port?

Ubona olunye uhlobo lwevalvu yokujika ikota ebizwa ngokuba yivalvu yeplagi. Ifana nevalvu yebhola, kodwa awuqinisekanga ukuba isebenza njani ngokubhekiselele ekuhambeni okanye ukuthembeka kwexesha elide.

Njengeevalvu zebhola, iivalvu zeplagi zinokuba yi-port epheleleyo okanye i-port encinci. Nangona kunjalo, uyilo lwazo ludala ukungqubana okungakumbi, okwenza kube nzima ukuzijika kwaye kube lula ukunamathela ngokuhamba kwexesha kunevalvu yebhola.

Olu luthelekiso olunomdla kuba lubonisa isizathu sokubaiivalvu zebholaziye zalawula kakhulu kweli shishini.ivalvu yeplagiisebenzisa iplagi esisilinda okanye enciphileyo enomngxuma kuyo. Ivalvu yebhola isebenzisa i-sphere. Zombini zinokuyilwa nge-port open epheleleyo, ngoko ke kuloo nto, ziyafana. Umahluko ophambili yindlela ezisebenza ngayo. Iplagi kwivalvu yeplagi inendawo enkulu kakhulu edibana rhoqo nomzimba wevalvu okanye i-liner. Oku kudala ukungqubana okuninzi, oko kuthetha ukuba kufuna amandla angakumbi (i-torque) ukuze ijike. Olu ngqubana luphezulu lukwenza kube lula ukubamba ukuba alusetyenziswa rhoqo. Ivalvu yebhola, kwelinye icala, ivala ngezihlalo ezincinci ze-PTFE, ezijoliswe kuzo. Indawo yoqhagamshelwano incinci kakhulu, nto leyo ebangela ukungqubana okuphantsi kunye nokusebenza okuthambileyo. Kwi-Pntek, sigxila kuyilo lwevalvu yebhola kuba inika ukutywinwa okungcono ngomzamo omncinci kunye nokuthembeka okukhulu kwexesha elide.

Isiphelo

Ayizizo zonke iivalvu zebhola zePVC ezizizibuko ezipheleleyo. Soloko ukhetha izibuko ezipheleleyo kwiinkqubo ezihamba ngokukhawuleza kunye nezibuko ezisemgangathweni zokuvala ngokubanzi ukuze uphucule ukusebenza kunye neendleko zakho.