Iivalvu zebhola ze-union zenyani zilinganiswa ngobukhulu bepayipi eqhelekileyo (i-NPS) eziqhagamshelwa kuyo, njenge-1/2″, 1″, okanye i-2″. Obu bukhulu bubhekisela kububanzi bangaphakathi bepayipi efanayo, hayi ubukhulu bevalvu, okuqinisekisa ukulingana okugqibeleleyo.

Olu bungakanani lubonakala lulula, kodwa kulapho kwenzeka khona iimpazamo ezininzi. Iqabane lam e-Indonesia, uBudi, liyazi kakuhle le nto. Abathengi bakhe, ukusuka kubakhi abakhulu ukuya kubathengisi basekuhlaleni, abanakukwazi ukuhlawula ukungalingani kwindawo. I-odolo enye engalunganga inokuphazamisa lonke uthotho lwezinto ezibonelelwayo kunye nexesha leprojekthi. Yiyo loo nto sihlala sigxila ekucaciseni. Masihlalutye imibuzo eqhelekileyo malunga nezi valve zibalulekileyo ukuqinisekisa ukuba yonke i-odolo ilungile kwasekuqaleni.

Yintoni ivalvu yebhola yomanyano yokwenyani?

Ivalvu iyasilela, kodwa incamatheliswe ngokusisigxina emgceni. Ngoku kufuneka ukhuphe amanzi kuyo yonke inkqubo uze usike lonke icandelo lombhobho ukuze nje ulungiseke lula.

Ivalvu yebhola yomanyano lokwenyani yidizayini enamacandelo amathathu. Inomzimba ophakathi onokususwa ngokulula ukuze ugcinwe okanye utshintshwe ngokukhulula amantongomane amabini "omanyano", ngaphandle kokusikwa kombhobho odibeneyo.

Masichaze isizathu sokuba olu yilo lubaluleke kangaka kwiingcali. Inxalenye ethi "umanyano lokwenyani" ibhekisa ngokukodwa kunxibelelwano olukumacala omabini evalvu. Ngokungafaniyo nomgangatho oqhelekileyoivalvu encinciedityaniswe ngokusisigxina ibe yintambo,ivalvu yomanyano lokwenyaniineenxalenye ezintathu ezahlukeneyo ezinokuhlulwahlulwa.

Izinto eziphambili

• Iimpahla ezimbini zomsila:Ezi ziziphelo ezinamathele ngokusisigxina kwimibhobho, ngokuqhelekileyo nge-solvent welding ye-PVC. Zenza uqhagamshelo oluzinzileyo kwinkqubo yakho.
• Iqumrhu Elinye Eliphakathi:Le yintliziyo yevalvu. Iqulethe indlela yebhola, isiqu, isiphatho, kunye nezitywini. Ihlala kakuhle phakathi kwezi mva zimbini.
• IiNuts ezimbini zeManyano:Ezi nati zikhulu, zinemisonto ziyamangalisa. Zityibilika phezu kweziqwenga zasemva kwentloko zize zijije umzimba ophakathi, zidibanisa yonke into kwaye zenze ukuqina,isitywino esingangeni manzingee-O-rings.

Okuuyilo lwemodyuliitshintsha umdlalo xa kulungiselelwa. Ukhulula nje amantongomane, kwaye umzimba wonke wevalvu uyaphakama kwangoko. Olu phawu luxabiso eliphambili esilinikezelayo kwiPntek—uyilo olukrelekrele olugcina abasebenzi, imali, kunye nexesha lokungasebenzi kwenkqubo.

Ungayibona njani ivalvu yebhola ukuba ingakanani na ubukhulu bayo?

Unevalvu esandleni sakho, kodwa akukho zimpawu zicacileyo. Kufuneka u-odole enye endaweni yayo, kodwa ukuqikelela ukuba ubungakanani bayo buyindlela yokwenza iimpazamo ezibizayo kunye nokulibaziseka kweprojekthi.

Ubungakanani bevalvu yebhola phantse buhlala bubhalwe okanye buprintwa ngqo emzimbeni wevalvu. Khangela inombolo elandelwa ngu-“intshi” (“) okanye “DN” (Ububanzi beNominal) ukuze ufumane ubungakanani bemetric. Eli nani lihambelana nobungakanani bepayipi eliyifaneleyo.

Ubungakanani beevalvu busekelwe kwinkqubo ebizwa ngokubaUbungakanani bePayipi eNominal (NPS)Oku kunokudida ekuqaleni kuba inani alilomlinganiselo othe ngqo wenxalenye ethile yevalvu ngokwayo. Ligama eliqhelekileyo.

Ukuqonda iiMpawu

• Ubungakanani beMibhobho Eqhelekileyo (i-NPS):Kwiivalvu zePVC, uza kubona ubungakanani obuqhelekileyo obufana ne-1/2″, 3/4″, 1″, 1 1/2″, 2″, njalo njalo. Oku kukuxelela ukuba yenzelwe ukulingana kumbhobho onobukhulu obufanayo. Ngamafutshane, ivalvu ye-1″ ifanela umbhobho we-1″. Ithe ngqo.
• Ububanzi beNominal (DN):Kwiimarike ezisebenzisa imigangatho ye-metric, uya kuhlala ubona iimpawu ze-DN endaweni yoko. Umzekelo, i-DN 25 yi-metric equivalent ye-NPS 1″. Yindlela eyahlukileyo yokubiza amagama ngobukhulu obufanayo beepayipi ezisemgangathweni zoshishino.

Xa uhlola ivalvu, jonga isiphatho okanye umzimba oyintloko. Ubungakanani budla ngokubumbaniswa ngqo kwiplastiki. Ukuba akukho zimpawu konke konke, indlela eqinisekileyo kukulinganisa ububanzi bangaphakathi besokethi yevalvu, apho kuya khona umbhobho. Olu linganiselo luya kuhambelana ngokusondeleyo nobubanzi bangaphandle bombhobho ohambelanayo ofanele wona.

Yintoni umahluko phakathi kwe-single union kunye ne-double union ball valves?

Uthenge ivalvu "yomanyano" ulindele ukuba isuswe lula. Kodwa xa uzama ukuyilungisa, ufumanisa ukuba icala elinye kuphela liyakhululeka, nto leyo ekunyanzela ukuba ugobe kwaye ucinezele umbhobho ukuze uphume.

Ivalvu enye ye-union ine-union nut enye, evumela ukuqhawuka kwicala elinye lombhobho. Ivalvu yebhola ye-union ephindwe kabini (okanye i-union yenyani) ine-union nut ezimbini, evumela umzimba ukuba ususwe ngokupheleleyo ngaphandle koxinzelelo kumbhobho.

Olu mahluko lubaluleke kakhulu ekusebenzeni kakuhle nangobungcali. Nangona ivalvu enye yomanyano ingcono kancinci kunevalvu eqhelekileyo edibeneyo, ayiboneleli ngokuguquguquka okufunekayo ukuze kugcinwe ixesha elide.

Kutheni i-Double Union iluMgangatho woBugcisa

• Umanyano oluManyeneyo:Nge-union nut enye, icala elinye levalvu liqiniswa ngokusisigxina kwisiphelo sombhobho. Ukuze uyisuse, ukhulula i-nut enye, kodwa emva koko kufuneka uyitsale okanye uyigobe umbhobho ukuze ivalvu iphume. Oku kubeka uxinzelelo olukhulu kwezinye izinto ezifakelwayo kwaye kunokubangela ukuvuza okutsha emgceni. Sisisombululo esingaphelelanga esinokudala iingxaki ezingaphezulu.
• Umanyano oluphindwe kabini (Umanyano lokwenyani):Lo ngumgangatho wobungcali kwaye yinto esiyivelisayo ePntek. Ngee-union nuts ezimbini, zombini ii-pipe connections zingakhululeka ngokuzimeleyo. Umzimba we-valve ungaphakanyiswa ngqo phezulu nangaphandle komgca ngaphandle koxinzelelo kwi-piping. Oku kubalulekile xa i-valve ifakwe kwindawo encinci okanye iqhagamshelwe kwizixhobo ezinobuthathaka ezifana nepompo okanye isihluzi.

Ingakanani ubungakanani obuqhelekileyo bevalvu yebhola egcweleyo?

Ufake ivalvu, kodwa ngoku uxinzelelo lwamanzi kwinkqubo lubonakala luphantsi. Uyabona ukuba umngxuma ongaphakathi kwevalvu mncinci kakhulu kunombhobho, nto leyo edala umngxuma othintela ukuhamba kwamanzi.

Kwivalvu yebhola enembobo epheleleyo (okanye i-full port), ubungakanani bomngxuma ebholeni benzelwe ukulingana nobubanzi bangaphakathi bombhobho. Ngoko ke, ivalvu enembobo epheleleyo eyi-1″ inomngxuma okwanayo nobubanzi obuyi-1″, okuqinisekisa ukuba akukho mda wokugeleza kwamanzi.

Igama elithile "isimbozo esipheleleyo"Ibhekisa kuyilo lwangaphakathi kunye nokusebenza kwevalvu, hayi ubungakanani bayo boqhagamshelo lwangaphandle. Luphawu olubalulekileyo ekusebenzeni kakuhle kwezicelo ezininzi.

I-Full Bore vs. I-Standard Port

• I-Full Bore (Izibuko Elipheleleyo):Umngxuma odlula ebholeni ulingana nobubanzi bangaphakathi (ID) bombhobho oqhagamshelwe kuwo. Kwivalvu eyi-2″, umngxuma nawo uyi-2″. Olu yilo ludala indlela egudileyo, engenaziphazamiso ngokupheleleyo yolwelo. Xa ivalvu ivuliwe, kuba ngathi ayikho. Oku kubalulekile kwiinkqubo apho kufuneka ukhawulezise ukuhamba kwamanzi kwaye unciphise ukuhla koxinzelelo, njengemibhobho yamanzi ephambili, i-pump intakes, okanye iinkqubo zokukhupha amanzi.
• Izibuko Eliqhelekileyo (Izibuko Elincitshisiweyo):Kolu yilo, umngxuma odlula ebholeni mncinci kunobungakanani bombhobho. Ivalvu yesango eqhelekileyo eyi-1″ inokuba nomngxuma oyi-3/4″. Olu thintelo luncinci luyamkeleka kwiindawo ezininzi kwaye lwenza ivalvu ngokwayo ibe ncinci, ilula, kwaye ingabizi kakhulu ukuyenza.

KwaPntek, iivalvu zethu zebhola zomanyano lokwenyani zigcwele i-bore. Sikholelwa ekuboneleleni ngezisombululo eziphucula ukusebenza kwenkqubo, kungekhona ukuyithintela.

Isiphelo

Ubungakanani bevalvu yebhola yomanyano lokwenyani buhambelana nombhobho abawufakayo. Ukukhetha umanyano oluphindwe kabini, uyilo olupheleleyo lwebhore luqinisekisa ukulungiswa okulula kunye nokungathintelwa kokuhamba kwamanzi kwinkqubo ethembekileyo neyobungcali.