Uzibuza ukuthi ivalvu ye-PVC ingakwazi yini ukusingatha ukucindezeleka kohlelo lwakho? Iphutha lingaholela ekuqhumeni okubizayo kanye nesikhathi sokungasebenzi. Ukwazi umkhawulo oqondile wokucindezela kuyisinyathelo sokuqala sokufakwa okuphephile.

Ama-valve amaningi ebhola le-PVC ajwayelekile alinganiswa ngokucindezela okuphezulu okungu-150 PSI (Amaphawundi nge-Inch yesikwele) ekushiseni okungu-73°F (23°C). Lesi silinganiso siyancipha njengoba usayizi wepayipi kanye nokushisa kokusebenza kukhuphuka, ngakho-ke hlola njalo imininingwane yomenzi.

Ngikhumbula ingxoxo noBudi, umphathi wokuthenga e-Indonesia othenga izinkulungwane zamavalvu kithi. Wangishayela ucingo ngolunye usuku, ekhathazekile. Omunye wamakhasimende akhe, owayengumkontileka, wayene-valve engasebenzi kahle ekufakweni okusha. Idumela lakhe lalisengozini. Lapho siphenya, sathola ukuthi uhlelo lwalusebenza kahle kancane.izinga lokushisakunokuvamile, okwanele ukwehlisa ukusebenza kahle kwevalvuisilinganiso sokucindezelangaphansi kwalokho okwakudingwa uhlelo. Kwakuwukunganaki okulula, kodwa kwaqokomisa iphuzu elibalulekile: inombolo ephrintiwe ku-valve akuyona indaba ephelele. Ukuqonda ubudlelwano phakathi kwengcindezi, izinga lokushisa, kanye nosayizi kubalulekile kunoma ubani othola noma ofaka lezi zingxenye.

Ingakanani ingcindezi engayibamba ivalvu yebhola le-PVC?

Ubona isilinganiso sokucindezela, kodwa awuqiniseki ukuthi siyasebenza yini esimweni sakho esithile. Ukucabanga ukuthi inombolo eyodwa ifanelana nawo wonke amasayizi namazinga okushisa kungaholela ekuhlulekeni okungalindelekile kanye nokuvuza.

I-valve yebhola ye-PVC ngokuvamile ingaphatha i-150 PSI, kodwa lokhu kuyi-Cold Working Pressure yayo (CWP). Ingcindezi yangempela engayiphatha yehla kakhulu njengoba izinga lokushisa loketshezi likhuphuka. Isibonelo, ku-140°F (60°C), isilinganiso sengcindezi singanqunywa phakathi.

Into ebalulekile okufanele uyiqonde lapha yilokho esikubiza ngokuthi “ijika lokususa ingcindezi"Liyigama lobuchwepheshe lomqondo olula: njengoba i-PVC ifudumala, iba buthakathaka futhi ithambile. Ngenxa yalokhu, kufanele usebenzise ingcindezi encane ukuze uyigcine iphephile. Cabanga ngebhodlela lepulasitiki. Uma libanda, liqina kakhulu. Uma ulishiya emotweni eshisayo, liba thambile futhi lithambe. AI-valve ye-PVCisebenza ngendlela efanayo. Abakhiqizi banikeza amashadi akukhombisa ukuthi ingakanani ingcindezi ivalvu engayiphatha emazingeni okushisa ahlukene. Njengomthetho wesithupha, kukho konke ukwanda okungu-10°F ngaphezu kwezinga lokushisa elizungezile (73°F), kufanele wehlise ingcindezi ephezulu evumelekile cishe ngo-10-15%. Yingakho ukuthola kumkhiqizi ohlinzeka ngokucacileidatha yobuchwepheshekubaluleke kakhulu kochwepheshe abanjengoBudi.

Ukuqonda Ubudlelwano Bezinga Lokushisa Nobukhulu

Ngaphezu kwalokho, ama-valve amakhulu anobubanzi avame ukuba nesilinganiso sokucindezela esiphansi kunalawo amancane, ngisho noma esezingeni lokushisa elifanayo. Lokhu kungenxa ye-physics; indawo enkulu ebusweni bebhola nomzimba we-valve isho ukuthi amandla aphelele asetshenziswa yingcindezi makhulu kakhulu. Hlola njalo isilinganiso esithile sosayizi othize owuthengayo.

Uyini umkhawulo wokucindezela kwevalvu yebhola?

Uyazi umkhawulo wokucindezela we-PVC, kodwa lokho kuqhathaniswa kanjani nezinye izinketho? Ukukhetha izinto ezingalungile zomsebenzi ocindezelayo kungaba yiphutha elibizayo, noma eliyingozi.

Umkhawulo wokucindezela wevalvu yebhola uncike ngokuphelele ezintweni zayo. Amavalvu e-PVC enzelwe izinhlelo zokucindezela eziphansi (cishe i-150 PSI), amavalvu ethusi enzelwe ukucindezela okuphakathi (kufika ku-600 PSI), kanti amavalvu ensimbi engagqwali enzelwe ukusetshenziswa kokucindezela okuphezulu, ngokuvamile adlula i-1000 PSI.

Lena ingxoxo engivame ukuba nayo nabaphathi bokuthenga abanjengoBudi. Nakuba ibhizinisi lakhe eliyinhloko liyi-PVC, amakhasimende akhe ngezinye izikhathi anemisebenzi ekhethekile edingaukusebenza okuphezuluUkuqonda yonke imakethe kumsiza ukuthi akhonze amakhasimende akhe kangcono. Akagcini nje ngokuthengisa umkhiqizo; unikeza ikhambi. Uma umakhi esebenza emugqeni wokunisela ojwayelekile, i-PVC iphelele,ukukhetha okungabizi kakhuluKodwa uma lowo mkontileka ofanayo esebenza epayipini lamanzi elinomfutho ophezulu noma ohlelweni olunezinga lokushisa eliphakeme, uBudi uyazi ukuthi angancoma enye indlela yensimbi. Lolu lwazi lummisa njengochwepheshe futhi lwakha ukwethenjwa kwesikhathi eside. Akukhona ukuthengisa ivalvu ebiza kakhulu, kodwakwesokudlaivalvu yomsebenzi.

Ukuqhathanisa Izinto Ezivamile Ze-Ball Valve

Ukukhetha okufanele kuhlale kuncike ezidingweni zokusetshenziswa: ingcindezi, izinga lokushisa, kanye nohlobo loketshezi olulawulwayo.

Njengoba ubona, izinsimbi ezifana nethusi nensimbi engagqwali zinamandla okudonseka aphezulu kakhulu kune-PVC. Lawa mandla angokwemvelo azivumela ukuthi zithwale ukucindezeleka okuphezulu kakhulu ngaphandle kwengozi yokuqhuma. Nakuba ziza ngezindleko eziphakeme, ziyisinqumo esiphephile nesidingekayo lapho ukucindezeleka kwesistimu kudlula imingcele ye-PVC.

Iyini ingcindezi yomoya ephezulu kakhulu ye-PVC?

Ungase ulingeke ukusebenzisa i-PVC engabizi kakhulu entanjeni yomoya ecindezelwe. Lona umbono ovamile kodwa oyingozi kakhulu. Ukwehluleka lapha akusikho ukuvuza; kuwukuqhuma.

Akufanele neze usebenzise ama-valve noma amapayipi ebhola e-PVC ajwayelekile emoyeni ocindezelwe noma kunoma iyiphi enye igesi. Umfutho womoya ophakanyisiwe ophezulu u-zero. Igesi ecindezelwe igcina amandla amakhulu, futhi uma i-PVC yehluleka, ingaphahlazeka ibe yiziqhumane ezibukhali neziyingozi.

Lesi yisixwayiso sokuphepha esibaluleke kakhulu engisinika ozakwethu, futhi into engiyigcizelela eqenjini likaBudi ukuze baziqeqeshe. Ingozi ayiqondwa kahle yiwo wonke umuntu. Isizathu umehluko omkhulu phakathi koketshezi namagesi. Uketshezi olufana namanzi alucindezelwa. Uma ipayipi le-PVC elibamba amanzi liqhekeka, umfutho wehla ngokushesha, bese uthola ukuvuza okulula noma ukuhlukana. Nokho, igesi icindezelwa kakhulu. Ifana nomthombo ogciniwe. Uma ipayipi le-PVC elibamba umoya ocindezelwe lihluleka, wonke lawo mandla agciniwe akhishwa ngesikhathi esisodwa, okubangela ukuqhuma okukhulu. Ipayipi alimane nje liqhekeke; liyaphuka. Ngibone izithombe zomonakalo ongase ubangelwe yilokhu, futhi kuyingozi okungekho muntu okufanele ayithathe.

Ukwehluleka Kokucindezela Kwe-Hydrostatic vs. Pneumatic

Ingozi ivela ohlotsheni lwamandla agcinwe ohlelweni.

• Ukucindezela Okungashintshi (Amanzi):Amanzi awacindezeli kalula. Uma isitsha esiphethe amanzi sihluleka, ingcindezi iyaphela ngokushesha. Umphumela uba ukuvuza. Amandla aphela ngokushesha nangokuphephile.
• Ukucindezela Komoya (Umoya/Igesi):Igesi iyacindezelwa, igcina inani elikhulu lamandla angaba khona. Uma isitsha sihluleka, la mandla akhishwa kakhulu. Ukwehluleka kuyadabukisa, hhayi kancane kancane. Yingakho izinhlangano ezifana ne-OSHA (Occupational Safety and Health Administration) zinemithetho eqinile emelene nokusebenzisa i-PVC ejwayelekile emoyeni ocindezelwe.

Ngezinhlelo zokusebenza zomoya, sebenzisa njalo izinto eziklanyelwe futhi ezilinganiselwe amagesi acindezelwe, njengethusi, insimbi, noma amapulasitiki akhethekile aklanyelwe leyo njongo. Ungalokothi usebenzise i-PVC yezinga lamapayipi.

Iyini izinga lokucindezela kwevalvu yebhola?

Unevalvu esandleni sakho, kodwa udinga ukwazi isilinganiso sayo esiqondile. Ukungafundi kahle noma ukunganaki izimpawu emzimbeni kungaholela ekusebenziseni ivalvu engakaqashelwa kahle ohlelweni olubucayi.

Isilinganiso sokucindezela siyinani eligxivizwe ngqo emzimbeni wevalvu yebhola. Ngokuvamile libonisa inombolo elandelwa yi-“PSI” noma i-“PN,” emele i-Cold Working Pressure (CWP) ephezulu ekushiseni okumaphakathi, ngokuvamile i-73°F (23°C).

Ngihlala ngikhuthaza ozakwethu ukuba baqeqeshe abasebenzi babo besitolo kanye nabathengisi ukuthi bafunde la ma-marks ngendlela efanele. “Ikhadi lomazisi” le-valve. Uma ithimba likaBudi likhipha izimpahla, lingaqinisekisa ngokushesha ukuthi lizitholile.imininingwane efanele yomkhiqizo. Lapho abathengisi bakhe bekhuluma nonkontileka, bangakhomba ngokoqobo isilinganiso esikuvalvu ukuqinisekisa ukuthi siyahlangabezana nezidingo zephrojekthi. Lesi sinyathelo esilula sisusa noma yikuphi ukuqagela futhi sivimbele amaphutha ngaphambi kokuba ivalvu ifike endaweni yokusebenza. Amamaki ayisithembiso esivela kumenzi mayelana namakhono okusebenza kwevalvu, futhi ukuwaqonda kubalulekile ekusebenziseni umkhiqizo ngokuphepha nangokuphumelelayo. Kuyimininingwane encane eyenza umehluko omkhulu ekuqinisekiseniukulawulwa kwekhwalithi kulo lonke uchungechunge lokunikezwa kwempahla.

Indlela Yokufunda Amamaki

Ama-valve asebenzisa amakhodi ajwayelekile ukuze adlulisele imikhawulo yawo. Nazi ezivame kakhulu ozozithola ku-valve yebhola ye-PVC:

Isibonelo, ungase ubone“150 PSI @ 73°F”Lokhu kusobala kakhulu: i-150 PSI iyingcindezi ephezulu kakhulu, kodwa kuphela ku-73°F noma ngaphansi kwayo. Ungase ubone futhi“PN10″Lokhu kusho ukuthi ivalvu ilinganiswe ngokucindezela okuncane okungu-10 Bar. Njengoba i-1 Bar icishe ibe ngu-14.5 PSI, ivalvu ye-PN10 icishe ilingane nevalvu ye-145 PSI. Njalo funa inombolo yokucindezela kanye nanoma yisiphi isilinganiso sokushisa esihambisanayo ukuze uthole isithombe esiphelele.

Isiphetho

Umkhawulo wokucindezela kwevalvu yebhola le-PVC ngokuvamile u-150 PSI ngamanzi, kodwa lesi silinganiso sehla ngokushisa. Okubaluleke kakhulu, ungalokothi usebenzise i-PVC ezinhlelweni zomoya ezicindezelwe.