Udinga ukufaka ivalvu, kodwa ukukhetha uhlobo olungalunganga kunokuthetha iiyure zomsebenzi owongezelelekileyo kamva. Ukulungiswa okulula kunokukunyanzela ukuba unqumle imibhobho kwaye uvale yonke inkqubo.

Ivalvu yebhola ye-double union ingasuswa ngokupheleleyo kumbhobho ukuze ilungiswe, ngelixa ivalvu ye-union enye ingenako. Oku kwenza uyilo lwe-double union lube ngcono kakhulu ekugcinweni nasekusebenzeni ixesha elide.

Ukukwazi ukulungisa ivalvu ngokulula yinto ebalulekileyo kwixabiso elipheleleyo lobunini. Yingongoma ephambili endiyixoxa namaqabane anjengoBudi, umphathi wokuthenga eIndonesia. Abathengi bakhe, ingakumbi abo bakwiindawo zoshishino, abanakukwazi ukuhlawula amaxesha amade okungasebenzi. Kufuneka bakwazi ukutshintsha izitywino zevalvu okanye umzimba wonke wevalvu ngemizuzu, hayi iiyure. Ukuqonda umahluko woomatshini phakathi koyilo lwe-single kunye ne-double union kuya kukunceda ukhethe ivalvu ekongela ixesha, imali, kunye neentlungu ezinkulu ekuhambeni kwexesha.

Yintoni umahluko phakathi kwevalvu yebhola ye-single union kunye nevalvu yebhola ye-double union?

Ubona iivalvu ezimbini ezibonakala zifana kodwa zinamagama namaxabiso ahlukeneyo. Oku kukwenza uzibuze ukuba ingaba ukhetho lwe-single union olungabizi kakhulu "lulungile ngokwaneleyo" kwiprojekthi yakho.

I-double union inee-connectors ezineentambo kuzo zombini iziphelo, nto leyo evumela ukuba zisuswe ngokupheleleyo. I-single union ine-connector enye, nto leyo ethetha ukuba icala elinye lihlala lizinzile, ngokuqhelekileyo nge-solvent cement.

Cinga ngayo njengokulungisa itayara lemoto. Ivalvu ye-double union ifana nevili elibanjwe zii-lug nuts; ungayisusa ngokulula yonke ivili ukuze uyilungise. Ivalvu ye-single union ifana nevili elidityaniswe kwi-axle kwelinye icala; awunakuyisusa ukuze uyilungise. Ungaqhawula icala elinye kuphela uze ulijike lisuke endleleni. Ukuba umzimba wevalvu ngokwawo uyasilela okanye kufuneka utshintshe izitywini,umanyano oluphindwe kabiniUyilo luphezulu kakhulu. Abakhi beBudi baza kusebenzisa iivalvu ze-double union kuphela kwimisebenzi ebalulekileyo kuba banokutshintsha ngokupheleleyo ngaphantsi kwemizuzu emihlanu ngaphandle kokusika umbhobho omnye. Ixabiso elincinci elongezelelweyo kwangaphambili liyazihlawulela xa kufuneka ulondolozo lokuqala.

Yintoni umahluko phakathi kwevalvu enye kunye nevalvu ephindwe kabini?

Uva amagama anje ngokuthi “ivalvu enye” kunye “nevalvu ephindwe kabini” uze udideke. Uxhalabile ukuba usenokuba utolika gwenxa iinkcukacha zeprojekthi ethile, nto leyo ekhokelela kwiiodolo ezingachanekanga.

Igama elithi “ivalvu enye” lidla ngokuthetha ivalvu elula, enenxalenye enye engenazo iiyuniyoni. Igama elithi “ivalvu ephindwe kabini” lidla ngokufinyezwa ligama elithi “ivalvu yebhola yomanyano oluphindwe kabini,” eliyiyunithi yevalvu enye eneekhonkco ezimbini zomanyano.

Isigama sinokuba nzima. Masicacise. "Ivalvu enye" ​​ngendlela yayo elula idla ngokuba "yi-compact" okanyeivalvu yebhola enyeYiyunithi evaliweyo encamathiselwe ngqo kumbhobho. Ixabiso liphantsi kwaye ilula, kodwa ukuba iyasilela, kuya kufuneka uyinqumle. "Ivalvu ephindwe kabini" okanye "ivalvu yomanyano oluphindwe kabini"Ibhekisa kwimveliso yethu yeqhawe: iyunithi enamacandelo amathathu (iziphelo ezimbini zomanyano kunye nomzimba oyintloko) evumela ukususwa lula. Kubalulekile ukuba ungabhidanisi oku nokuseta "ibhloko ephindwe kabini", okubandakanya ukusebenzisa iivalvu ezimbini ezahlukeneyo, ezizodwa zokwahlukanisa ukhuseleko oluphezulu. Kwi-99% yezicelo zamanzi, ivalvu enye "yomanyano ephindwe kabini" ibonelela ngokulinganisela okugqibeleleyo kokuvala okukhuselekileyo kunye nokusebenza ngokulula. Ngumgangatho esiwucebisayo kwiPntek kuyo nayiphi na indlela yokufakela esemgangathweni.

Uthelekiso lweValve oluSebenzayo

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

Ujonge iplani endala okanye iphepha leenkcazo zomncintisani uze ubone ivalvu ethi “Type 1″ okanye “Type 2″”. Le ntetho idala ukudideka kwaye yenza kube nzima ukuthelekisa neemveliso zanamhlanje.

Eli ligama elidala. “Uhlobo 1” ludla ngokubhekisele kuyilo lwevalvu olusisiseko, olunenxalenye enye. “Uhlobo 2” lubhekisele kuyilo olutsha oluphuculiweyo, oluye lwaguquka lwaba ziivalvu zebhola zomanyano zanamhlanje.

Cinga ngayo njengemoto ethi “Type 1” eyiModel T kunye nethi “Type 2” eyimoto yanamhlanje. Iingcamango ziyafana, kodwa itekhnoloji kunye noyilo zahlukene kakhulu. Kwiminyaka emininzi eyadlulayo, eli shishini lalisebenzisa la magama ukwahlula uyilo lweevalvu zebhola. Namhlanje, la magama aphelelwe lixesha, kodwa asenokubonakala kwizicwangciso ezindala. Xa ndibona oku, ndichazela amaqabane anjengoBudi ukuba iPntek yethuiivalvu zebhola zomanyano lokwenyaniyinguquko yanamhlanje yengcamango ethi "Type 2". Zenzelwe ukusuka ekuqaleni ukuze kube lula ukutshintsha izihlalo kunye nesitywino kunye nokususwa emgceni. Kufuneka usoloko uchaza "i-true union ball valve" ukuqinisekisa ukuba ufumana imveliso yanamhlanje, enokulungiselelwa ngokupheleleyo, hayi uyilo oluphelelwe lixesha oluvela kwiphepha leenkcukacha elineminyaka emininzi likhona.

Yintoni umahluko phakathi kweevalvu zebhola ze-DPE kunye ne-SPE?

Ufunde iphepha ledatha lobuchwephesha elikhankanya izihlalo ze-DPE okanye ze-SPE. La magama afinyeziweyo ayadida, kwaye uyoyika ukukhetha elingalunganga kunokubangela uxinzelelo oluyingozi kwindlela yakho.

I-SPE (Isiphumo sePiston enye) kunye ne-DPE (Isiphumo sePiston ephindwe kabini) zibhekisa kwindlela izihlalo zeevalvu ezisingatha ngayo uxinzelelo xa ivalvu ivaliwe. I-SPE yindlela eqhelekileyo yeevalvu zePVC, njengoko ikhupha uxinzelelo ngokuzenzekelayo ngokukhuselekileyo.

Oku kuba yinto yobuchwephesha, kodwa le ngcamango ibalulekile kukhuseleko. Kwivalvu evaliweyo, uxinzelelo ngamanye amaxesha lunokubanjwa kwindawo ephakathi yomzimba.

• I-SPE (Isiphumo sePiston esinye):Lo ngumgangatho weshishini weevalvu zebhola zePVC ezisetyenziselwa iinjongo ezibanzi.Isihlalo se-SPEivala uxinzelelo oluvela kwicala elingasentla. Nangona kunjalo, ukuba uxinzelelo luyandangaphakathiumzimba wevalvu, ingatyhala ngokukhuselekileyo idlule isihlalo esisezantsi kunye nomoya ophumayo. Luyilo oluzikhululayo.
• I-DPE (Isiphumo sePiston ephindwe kabini): A Isihlalo seDPEingatywina ngokuchasene noxinzelelo oluvelazombiniamacala. Oku kuthetha ukuba inokubamba uxinzelelo emzimbeni, nto leyo enokuba yingozi ukuba iyanda ngenxa yokwanda kobushushu. Olu yilo lwenzelwe ukusetyenziswa okukhethekileyo kwaye lufuna inkqubo eyahlukileyo yokukhulula umzimba.

Kuzo zonke izicelo zamanzi ezisemgangathweni, njengalezo abathengi bakaBudi abanazo, uyilo lwe-SPE lukhuselekile kwaye lolona lwakhiwo lukhuselekileyo.Iivalvu zePntekIthintela ukuqokelelana koxinzelelo oluyingozi ngokuzenzekelayo.

Isiphelo

Ivalvu yebhola yomanyano oluphindwe kabini ingcono kuyo nayiphi na inkqubo efuna ukulungiswa, njengoko inokususwa ngokupheleleyo ngaphandle kokunqumla imibhobho. Ukuqonda uyilo lwevalvu kuqinisekisa ukuba ukhetha ngokuchanekileyo.