INTSHAYELELO YEFLANGE

Iinkcukacha Zomzimba
Okokuqala nokubalulekileyo, iflange kufuneka ilingane nombhobho okanye izixhobo ezenzelwe yona. Iinkcukacha ezibonakalayo zeeflange zephayiphu ziquka ubukhulu kunye neemilo zoyilo.

Ubukhulu beFlange
Ubukhulu obubonakalayo bufanele buchazwe ukuze kwenziwe ubungakanani obuchanekileyo beeflanges.

Ububanzi bangaphandle (OD) bumgama ophakathi kwemiphetho emibini echaseneyo yobuso beflange.
Ubukhulu bubhekisela kubukhulu bomphetho wangaphandle oncamathiselayo, kwaye abubandakanyi inxalenye yeflange ebamba umbhobho.
Ububanzi besangqa sebholiti bubude ukusuka embindini womngxuma webholiti ukuya embindini womngxuma ochaseneyo.
Ubungakanani bombhobho bubungakanani bombhobho obuhambelanayo neflange yombhobho, ngokubanzi benziwa ngokwemigangatho eyamkelekileyo. Ngokuqhelekileyo buchazwa ngamanani amabini angengomlinganiselo, ubungakanani bombhobho obuqhelekileyo (NPS) kunye neshedyuli (SCH).
Ubungakanani bebhore eliqingqiweyo bububanzi bangaphakathi besixhumi seflange. Xa usenza kwaye u-odola naluphi na uhlobo lwesixhumi sepayipi, kubalulekile ukufanisa ubungakanani bebhore yesiqwenga nobukhulu bebhore yombhobho wokutshatisa.
Ubuso beFlange
Ubuso beFlange bunokwenziwa ngokweemfuno ezininzi zoyilo olusekelwe kwiimilo ezenziwe ngokwezifiso. Eminye imizekelo ibandakanya:

Iflethi
Ubuso obuphakanyisiweyo (RF)
Ijoyinti yohlobo lweringi (RTJ)
Umjelo we-O-ring
Iintlobo zeeFlanges zePipe
Iiflange zepayipi zinokwahlulwa zibe ziintlobo ezisibhozo ngokusekelwe kuyilo. Ezi ntlobo zezi: blind, lap joint, orifice, reducing, slip-on, socket-weld, threaded, kunye weld neck.

Iiflanges ezingaboniyo ziipleyiti ezingqukuva ezingenayo indawo yokubeka embindini esetyenziselwa ukuvala iziphelo zemibhobho, iivalvu, okanye izixhobo. Zinceda ekuvumeleni ukufikelela lula kumgca xa sele uvaliwe. Zingasetyenziselwa novavanyo loxinzelelo lokuhamba kwamanzi. Iiflanges ezingaboniyo zenzelwe ukulingana nemibhobho eqhelekileyo kuzo zonke iisayizi kumanqanaba aphezulu oxinzelelo kunezinye iintlobo zeflange.

Iiflanges ze-Lap joint zisetyenziswa kwiipayipi ezifakelwe umbhobho odibeneyo okanye ezinee-lap joint stub ends. Zingajikeleza umbhobho ukuvumela ukulungelelaniswa okulula kunye nokuhlanganiswa kwemingxuma ye-bolt nokuba sele kugqityiwe ukuwelda. Ngenxa yolu ncedo, iiflanges ze-lap joint zisetyenziswa kwiinkqubo ezifuna ukuqhaqhwa rhoqo kweeflanges kunye nombhobho. Zifana nee-slip-on flanges, kodwa zine-radius egobileyo kwi-bore kunye nobuso ukuze zilungele i-lap joint stub end. Uvavanyo loxinzelelo lweeflanges ze-lap joint ziphantsi, kodwa ziphezulu kunee-slip-on flanges.

Iiflange ezityibilikayo zenzelwe ukutyibilika phezu kwesiphelo semibhobho zize zifakwe i-weld endaweni yazo. Zibonelela ngokufakelwa okulula nokungabizi kakhulu kwaye zilungele ukusetyenziswa koxinzelelo oluphantsi.

Iiflange ze-socket weld zilungele iipayipi ezincinci nezinoxinzelelo oluphezulu. Ukwenziwa kwazo kufana nokweeflange ze-slip-on, kodwa uyilo lwangaphakathi lwepokotho luvumela ukuba kubekho imbobo egudileyo kunye nokuhamba kolwelo okungcono. Xa zifakwe ngaphakathi, ezi flange zinamandla okudinwa angama-50% ngaphezu kweeflange ze-slip-on ze-slip-on ezifakwe kabini.

Iiflange ezinemisonto ziintlobo ezikhethekileyo zeflange yepayipi ezinokuqhotyoshelwa kumbhobho ngaphandle kokuwelda. Zifakelwa imisonto kwibhore ukuze zihambelane nemisonto yangaphandle kumbhobho kwaye ziyancitshiswa ukuze zenze isitywino phakathi kweflange nombhobho. Ii-seal welds zingasetyenziswa kunye noqhagamshelo olunemisonto ukuze kongezwe ukuqina kunye nokutywina. Zisetyenziswa kakuhle kwiipayipi ezincinci kunye noxinzelelo oluphantsi, kwaye kufuneka zithintelwe xa zisetyenziswa ngemithwalo emikhulu kunye nee-torque eziphezulu.

Iiflange zentamo yokuwelda zinehabhu ende ethambileyo kwaye zisetyenziselwa ukusetyenziswa koxinzelelo oluphezulu. Ihabhu ethambileyo idlulisela uxinzelelo ukusuka kwiflange ukuya kumbhobho ngokwawo kwaye inika amandla okuqinisa alwa nokudibanisa.