Unevalvu nombhobho ofanelekileyo, kodwa impazamo enye encinci ngexesha lokufakelwa inokubangela ukuvuza okungapheliyo. Oku kukunyanzela ukuba ucime yonke into kwaye uqale phantsi, uchitha ixesha nemali.

Ukufakela ivalvu yebhola kumbhobho wePVC, kufuneka uqale ukhethe uhlobo olufanelekileyo loqhagamshelo: nokuba yivalvu enemisonto esebenzisa iteyiphu yePTFE okanye ivalvu yesokhethi esebenzisa iprimer yePVC kunye nesamente. Ukulungiswa kunye nobuchule obufanelekileyo kubalulekile kwisitywini esingavuziyo.

Impumelelo yayo nayiphi na imisebenzi yokucoca imibhobho ixhomekeke kunxibelelwano. Ukulungisa oku yinto endiyixoxa rhoqo namaqabane afana noBudi e-Indonesia, kuba abathengi bakhe bajongana noku yonke imihla. Ivalvu evuzayo ayisoloko ibangelwa kukuba ivalvu ngokwayo imbi; kungenxa yokuba ijoyinti ayenziwanga ngokuchanekileyo. Iindaba ezimnandi zezokuba ukwenza isitywino esigqibeleleyo nesihlala sihleli kulula ukuba ulandela nje amanyathelo ambalwa alula. Olona khetho lubalulekileyo oza kulwenza kukuthatha isigqibo sokuba uza kusebenzisa imisonto okanye iglu.

Ungayiqhagamshela njani ivalvu yebhola kwiPVC?

Ubona iivalvu ezinemisonto kunye nezisokhethi zifumaneka. Ukukhetha engalunganga kuthetha ukuba iindawo zakho azizukulingana, nto leyo ethintela iprojekthi yakho ude ufumane ivalvu efanelekileyo.

Uqhagamshela ivalvu yebhola kwiPVC ngenye yeendlela ezimbini. Usebenzisa uqhagamshelo olunemisonto (NPT okanye BSP) kwiinkqubo ezinokufuna ukuqhaqhwa, okanye uqhagamshelo lwesokhethi (i-solvent weld) kwijoyinti esisigxina nenamathelisiweyo.

Inyathelo lokuqala kukuhlala ufanisa ivalvu yakho nenkqubo yakho yepayipi. Ukuba imibhobho yakho yePVC sele ineziphelo zentambo yesilisa, udinga ivalvu enentambo yesifazane. Kodwa kwimisebenzi emininzi emitsha yokucoca amanzi, ingakumbi yokunkcenkceshela okanye yokudada, uya kusebenzisa iivalvu zesokhethi kunye nesamente yesolvent. Ndihlala ndiyifumana iluncedo xa iqela likaBudi libonisa abathengi itafile yokucacisa ukhetho. Indlela ilawulwa yivalvu onayo. Awunakuncamathisela ivalvu enentambo okanye ufake ivalvu yesokhethi. Eyona ndlela ixhaphakileyo nehlala ihleli yoqhagamshelo lwePVC-to-PVC yiisokhethiokanyeukuwelda kwesinyibilikisiLe nkqubo ayigcini nje ngokuncamathisela iindawo, kodwa idibanisa ivalvu kunye nombhobho ngeekhemikhali zibe yiplastiki enye engenamthungo, eqinileyo kwaye ithembekile xa yenziwe ngokuchanekileyo.

Ucazululo lweNdlela yoQhagamshelo

Ngaba ikho indlela echanekileyo yokufaka ivalvu yebhola?

Ucinga ukuba ivalvu isebenza ngendlela efanayo nakweyiphi na indlela. Kodwa ukuyifaka ngendlela engalunganga kunokuthintela ukuhamba kwamanzi, kudale ingxolo, okanye kwenze kube nzima ukuyilungisa kamva.

Ewe, ikho indlela echanekileyo. Ivalvu kufuneka ifakwe ngesiphatho esifikelelekayo, ii-union nuts (kwi-union valve yokwenyani) zibekwe ukuze kube lula ukuyisusa, kwaye zihlale zikwindawo evulekileyo ngexesha lokuncamathisela.

Iinkcukacha ezincinci ezimbalwa zahlula ukufakelwa kobuchwephesha kokungena okungaqeqeshwanga. Okokuqala,uqhelaniso lokuphathaNgaphambi kokuba uncamathisele nantoni na, beka ivalvu uze uqinisekise ukuba isiphatho sinendawo eyaneleyo yokujika i-degrees ezingama-90. Ndibone iivalvu zifakwe kufutshane nodonga kangangokuba isiphatho sinokuvuleka phakathi kuphela. Kuvakala kulula, kodwa yimpazamo eqhelekileyo. Okwesibini, kwiivalvu zethu zeTrue Union, siquka ii-union nuts ezimbini. Ezi zenzelwe ukuba ukwazi ukuzikhulula kwaye uphakamise umzimba wevalvu uphume kumbhobho ukuze zisebenze. Kufuneka ufake ivalvu enesithuba esaneleyo sokukhulula ezi nati. Nangona kunjalo, elona nyathelo libalulekileyo yimeko yevalvu ngexesha lokufakwa.

Inyathelo Elibaluleke Kakhulu: Gcina Ivalvu Ivuliwe

Xa uncamathisela ivalvu yesokhethi (welding yesolvent), ivalvukufunekakufuneka ivuleke ngokupheleleyo. Izinyibilikisi ezikwiprimer nakwisamente zenzelwe ukunyibilikisa iPVC. Ukuba ivalvu ivaliwe, ezi zinyibilikisi zinokubanjwa ngaphakathi emzimbeni wevalvu kwaye zidibanise ibhola ngekhemikhali kwi-cavity yangaphakathi. Ivalvu iya kuvalwa ngokusisigxina. Ndithi kuBudi le yeyona nto iphambili "yokusilela kwevalvu entsha." Ayisiyongxaki yevalvu; yimpazamo yokufakelwa enokuthintelwa yi-100%.

Ungayincamathisela njani ivalvu yebhola yePVC?

Ufaka iglu uze uncamathisele iindawo, kodwa ijoyinti ayisebenzi xa icinezelwe. Oku kwenzeka kuba "igluing" yinkqubo yeekhemikhali efuna amanyathelo athile.

Ukuze unamathelise kakuhle ivalvu yebhola yePVC, kufuneka usebenzise indlela yeprimer enamanyathelo amabini kunye nesamente. Oku kuquka ukucoca, ukufaka iprimer emfusa kwiindawo zombini, uze ufake isamente yePVC ngaphambi kokuba uzidibanise nge-twist.

Le nkqubo ibizwa ngokuba yi-solvent welding, kwaye idala i-bond enamandla kunepayipi ngokwayo. Ukutsiba amanyathelo sisiqinisekiso sokuvuza kwixesha elizayo. Nantsi inkqubo esiqeqesha ngayo abasasazi beBudi ukuba bayilandele:

1. Ukulungeleka Komile Kuqala.Qinisekisa ukuba umbhobho uphuma ngaphakathi kwesokhethi yevalvu.
2. Coca Zombini Iinxalenye.Sebenzisa ilaphu elicocekileyo nelomileyo ukusula naluphi na ukungcola okanye ukufuma okungaphandle kombhobho kunye nangaphakathi kwesokhethi yevalvu.
3. Faka iPrimer.Sebenzisa i-dauber ukufaka i-liberal coat ye-PVC primer ngaphandle kwesiphelo sombhobho nangaphakathi kwesokhethi. I-primer ihlambulula umphezulu ngeekhemikhali ize iqalise ukuthambisa iplastiki. Eli lelona nyathelo ligqithiweyo nelibaluleke kakhulu.
4. Faka isamente.Ngelixa i-primer isemanzi, faka umaleko olinganayo wesamente ye-PVC kwiindawo ezi-primed. Musa ukusebenzisa kakhulu, kodwa qiniseka ukuba igqunywe ngokupheleleyo.
5. Qhagamshela kwaye uJikeleze.Tyhala umbhobho ngoko nangoko ungene kwisokethi ude uphume ezantsi. Njengoko utyhala, yijike ngekota. Le ntshukumo isasaza isamente ngokulinganayo kwaye isuse naziphi na iibhamuza zomoya ezivalelekileyo.
6. Bamba kwaye Uphilise.Bamba ijoyinti ngokuqinileyo endaweni yayo kangangemizuzwana engama-30 ukuthintela umbhobho ukuba ungaphindi uphume. Musa ukuyichukumisa okanye ukuyiphazamisa ijoyinti ubuncinane imizuzu eli-15, kwaye uyivumele iphole ngokupheleleyo ngokwemiyalelo yomenzi wesamente ngaphambi kokuba ucinezele inkqubo.

Uyenza njani i-PVC ball valve ibe lula ukuyijika?

Ivalvu yakho entsha kraca iqinile kakhulu, kwaye uxhalabile malunga nokuqhawula isiphatho. Oku kuqina kunokukwenza ucinge ukuba ivalvu ayinaziphene ngelixa ngokwenene luphawu lomgangatho.

Ivalvu entsha yePVC ekumgangatho ophezulu iqinile kuba izihlalo zayo zePTFE zenza uphawu oluqinileyo nolugqibeleleyo kwibhola. Ukuze ijike lula, sebenzisa isikrufu kwi-square nut esezantsi kwesibambo ukuze ukwazi ukuyiqhekeza ngcono.

Ndihlala ndizibuza lo mbuzo. Abathengi bafumana iPntek yethuiivalvukwaye bathi zinzima kakhulu ukuzijika. Oku kwenziwa ngabom. Izangqa ezimhlophe ngaphakathi, izihlalo ze-PTFE, zenziwe ngokuchanekileyo ukuze zenze isitywino esiqinileyo njengebhamuza. Oko kuqina kuko okuthintela ukuvuza. Iivalvu ezingabizi kakhulu ezinezitywino ezikhululekileyo zijika ngokulula, kodwa nazo ziyasilela ngokukhawuleza. Cinga ngazo njengeebhulukhwe ezintsha zesikhumba; kufuneka ziqhekeke. Eyona ndlela ilungileyo yokwenza oku kukusebenzisa isikrufu esincinci esihlengahlengiswayo kwindawo etyebileyo, enesikwere seshaft yesiphathi, kanye ezantsi. Oku kukunika amandla amaninzi ngaphandle kokubeka uxinzelelo kwisiphathi se-T ngokwaso. Emva kokusivula nokusivala amaxesha ambalwa, siya kuba bushelelezi kakhulu.Ungaze usebenzise i-WD-40 okanye ezinye izithambisi ezisekelwe kwioyile.Ezi mveliso zinokuhlasela kwaye zenze buthathaka iplastiki yePVC kunye nezitywino ze-EPDM O-ring, nto leyo ebangela ukuba ivalvu ingasebenzi kakuhle ngokuhamba kwexesha.

Isiphelo

Ukufakela ngokufanelekileyo, kusetyenziswa indlela efanelekileyo yokudibanisa, ukuqondisa, kunye nenkqubo yokuncamathisela, yeyona ndlela ikuphela kwayo yokuqinisekisa ukubaIvalvu yebhola yePVCinika ubomi benkonzo obude, obuthembekileyo, obungenazivuzi.