Udinga ukufaka ivalvu, kodwa ukukhetha uhlobo olungalungile kungasho amahora amaningi omsebenzi owengeziwe kamuva. Ukulungisa okulula kungaphoqa ukuthi usike amapayipi bese uvala lonke uhlelo.

Ivalvu yebhola le-double union ingasuswa ngokuphelele epayipini ukuze ilungiswe, kanti ivalvu ye-union eyodwa ayikwazi. Lokhu kwenza umklamo we-double union ube ngcono kakhulu ekunakekelweni nasekusebenzeni isikhathi eside.

Ikhono lokulungisa i-valve kalula liyisici esikhulu ezindlekweni eziphelele zobunikazi. Yisihloko esibalulekile engixoxa ngaso nabalingani abanjengoBudi, umphathi wokuthenga e-Indonesia. Amakhasimende akhe, ikakhulukazi lawo asezindaweni zezimboni, awakwazi ukukhokhela izikhathi ezinde zokungasebenzi. Kudingeka akwazi ukushintshanisa izivalo ze-valve noma umzimba wonke we-valve ngemizuzu, hhayi amahora. Ukuqonda umehluko womshini phakathi kwemiklamo ye-union eyodwa ne-double kuzokusiza ukhethe i-valve ekongela isikhathi, imali, kanye nezinkinga ezinkulu endleleni.

Uyini umehluko phakathi kwevalvu yebhola le-single union kanye nevalvu yebhola le-double union?

Ubona ama-valve amabili afanayo kodwa anamagama namanani ahlukene. Lokhu kukwenza uzibuze ukuthi inketho ye-single union eshibhile "ilungele" yini iphrojekthi yakho.

I-double union inezixhumi ezinezintambo kuzo zombili izinhlangothi, okuvumela ukuthi zisuswe ngokuphelele. I-single union inesixhumi esisodwa, okusho ukuthi uhlangothi olulodwa luqiniswa unomphela, ngokuvamile nge-solvent cement.

Cabanga ngakho njengokulungisa ithayi lemoto. Ivalvu ye-double union ifana nesondo elibanjwe yi-lug nuts; ungalisusa kalula lonke isondo ukuze ulilungise. Ivalvu ye-single union ifana nesondo elixhunywe kwi-axle ohlangothini olulodwa; awukwazi ukuyisusa ngempela ukuze isetshenziswe. Unganqamula umkhawulo owodwa kuphela bese uwususa endleleni. Uma umzimba wevalvu uqobo uhluleka noma udinga ukushintsha izivalo,ukuhlangana okuphindwe kabiliUmklamo ungcono kakhulu. Abakhiqizi beBudi bazosebenzisa ama-valve amabili e-union kuphela ekusetshenzisweni okubalulekile ngoba bangenza ukushintshwa okuphelele ngaphansi kwemizuzu emihlanu ngaphandle kokusika ipayipi elilodwa. Izindleko ezincane ezengeziwe kusengaphambili ziyazikhokhela uma kudingeka ukulungiswa kokuqala.

Uyini umehluko phakathi kwevalvu eyodwa nevalvu ephindwe kabili?

Uzwa amagama anjengokuthi “i-valve eyodwa” kanye “ne-valve ephindwe kabili” bese udideka. Ukhathazeka ngokuthi ungase uqonde kabi imininingwane yephrojekthi, okuholela kuma-oda angalungile.

Igama elithi “i-valve eyodwa” livame ukusho i-valve elula, enengxenye eyodwa engenazo izihlanganisi. Igama elithi “i-valve ephindwe kabili” livame ukufushaniswa nelithi “i-valve yebhola yomanyano ephindwe kabili,” okuyiyunithi eyodwa ye-valve enezixhumanisi ezimbili zomanyano.

Amagama angase abe nzima. Ake sicacise. “I-valve eyodwa” ngendlela yayo elula ivame ukuba “i-compact” nomaivalvu yebhola eyodwa. Kuyiyunithi evaliwe enamathiselwe ngqo epayipini. Ishibhile futhi ilula, kodwa uma yehluleka, kufanele uyinqume. “Ivalvu ephindwe kabili” noma “ivalvu yomanyano oluphindwe kabili"Kubhekisela kumkhiqizo wethu weqhawe: iyunithi enezingcezu ezintathu (iziphetho ezimbili zokuhlanganisa kanye nomzimba oyinhloko) evumela ukususwa kalula. Kubalulekile ukungadidanisi lokhu nokusethwa "kwebhulokhi eliphindwe kabili", okubandakanya ukusebenzisa amavalvu amabili ahlukene, ngamanye ukuze kuhlukaniswe ngokuphepha okuphezulu. Kuma-99% okusetshenziswa kwamanzi, ivalvu eyodwa "ye-double union" inikeza ibhalansi ephelele yokuvala okuphephile kanye nokusebenza okulula. Yindlela esiyincomayo kwa-Pntek yanoma yikuphi ukufakwa kwekhwalithi.

Ukuqhathaniswa Kokusebenza Kwevalvu

Uyini umehluko phakathi kwevalvu yebhola yohlobo 1 nevalvu yebhola yohlobo 2?

Ubheka ipulani endala noma ishidi lemininingwane lomncintisani bese ubona ivalvu ethi “Type 1″ noma “Type 2″”. Le nkulumo ephelelwe yisikhathi idala ukudideka futhi yenza kube nzima ukuyiqhathanisa nemikhiqizo yesimanje.

Leli igama elidala. “Uhlobo 1” luvame ukubhekisela ekwakhiweni kwevalvu okuyisisekelo, okuyingxenye eyodwa. “Uhlobo 2” lubhekisela ekwakhiweni okusha okunesevisi ethuthukisiwe, okwashintsha kwaba amavalvu ebhola angempela anamuhla.

Cabanga ngakho njengemoto ethi “Uhlobo 1” iyiModel T kanye nethi “Uhlobo 2” iyimoto yesimanje. Imibono iyafana, kodwa ubuchwepheshe kanye nomklamo kuhlukile kakhulu. Emashumini eminyaka edlule, imboni yasebenzisa la magama ukuhlukanisa imiklamo yamavalvu ebhola. Namuhla, amagama asetshenziswa kakhulu, kodwa asabonakala ezinhlelweni ezindala. Uma ngibona lokhu, ngichazela ozakwethu abanjengoBudi ukuthi iPntek yethuama-valve ebhola le-union yangempelayizinguquko zesimanje zomqondo "wohlobo 2". Zenzelwe kusukela phansi ukuze kube lula ukufaka izihlalo kanye nokufaka uphawu kanye nokususwa emgqeni. Kufanele uhlale uchaza "i-valve yebhola yomanyano weqiniso" ukuqinisekisa ukuthi uthola umkhiqizo wesimanje, osebenza ngokugcwele, hhayi umklamo ophelelwe yisikhathi ovela ephepheni lemininingwane elineminyaka eminingi.

Uyini umehluko phakathi kwama-valve ebhola e-DPE kanye ne-SPE?

Ufunde ishidi ledatha lobuchwepheshe elikhuluma ngezihlalo ze-DPE noma ze-SPE. Lawa magama afingqiwe ayadida, futhi wesaba ukuthi ukukhetha okungalungile kungadala isimo sokucindezeleka esiyingozi endleleni yakho.

I-SPE (I-Single Piston Effect) kanye ne-DPE (I-Double Piston Effect) zibhekisela endleleni izihlalo zamavalvu ezisingatha ngayo ingcindezi lapho ivalvu ivaliwe. I-SPE iyindinganiso yamavalvu e-PVC, njengoba ikhipha ingcindezi ngokuzenzakalelayo ngokuphephile.

Lokhu kuba ngobuchwepheshe, kodwa umqondo ubalulekile ekuphepheni. Kuvalvu evaliwe, ingcindezi ngezinye izikhathi ingabanjwa emgodini womzimba ophakathi.

• I-SPE (Umphumela we-Single Piston):Lena indinganiso yemboni yamavalvu ebhola le-PVC asetshenziswa kabanzi.Isihlalo se-SPEivala ingcindezi evela ohlangothini oluphezulu. Kodwa-ke, uma ingcindezi ikhulangaphakathiumzimba wevalvu, ingadlula ngokuphephile esihlalweni esingezansi kanye nomgodi womoya. Idizayini ezikhululayo.
• I-DPE (Umphumela wePiston Ephindwe Kabili): A Isihlalo se-DPEingavala ngokumelene nengcindezi evelakokubiliizinhlangothi. Lokhu kusho ukuthi ingabamba ingcindezi emgodini womzimba, okungaba yingozi uma ikhuphuka ngenxa yokwanda kokushisa. Lo mklamo ungowezinhlelo zokusebenza ezikhethekile futhi udinga uhlelo oluhlukile lokusiza umgodi womzimba.

Kuzo zonke izinhlelo zokusebenza zamanzi ezijwayelekile, njengalezo amakhasimende kaBudi anazo, umklamo we-SPE uphephile futhi yilokho esakha kukho.Ama-valve e-PntekKuvimbela ukwakheka kwengcindezi eyingozi ngokuzenzakalelayo.

Isiphetho

Ivalvu yebhola yokuhlanganisa kabili ingcono kunoma yiluphi uhlelo oludinga ukulungiswa, njengoba ingasuswa ngokuphelele ngaphandle kokusika amapayipi. Ukuqonda ukwakheka kwevalvu kuqinisekisa ukuthi ukhetha kahle.