Kutshanje, iqela lezixhobo zesandla nezombaneiivalvu zesango lemelaigqibile ngempumelelo ukulungisa iingxaki zokuvula nokuvala kwindawo yokusebenzela kwaye iza kusiwa kwiiprojekthi zobunjineli bamanye amazwe kungekudala. Iinkcukacha ezikhoyo ziquka i-DN150, i-DN200 kunye ne-DN300. Yenzelwe uxinzelelo oluqhelekileyo lwe-PN10, iivalvu zigcina amaqondo obushushu asebenzayo ukuya kuthi ga kwi-80°C kwaye zenzelwe ngokukodwa indawo yamanzi kwiinkqubo zemibhobho.

Ivalvu yesango lemela inesakhiwo esincinci kunye nendlela epheleleyo yokuhamba ethe tye ngaphandle kweendawo ezifileyo. Umzimba wayo wenziwe ngentsimbi ethambileyo yodidi oluphezulu ngokusebenzisa ukuphoswa ngokuchanekileyo, ukubonelela ngokuqina okubalaseleyo kwesakhiwo kunye nokumelana nempembelelo phantsi koxinzelelo lwemibhobho eqhelekileyo. Ipleyiti yesango lentsimbi engagqwaliyo inika ukumelana nokugqwala okuphezulu, iqinisekisa i-torque ephantsi yokusebenza ngexesha lemijikelo yokutshintsha rhoqo. Uyilo lwesihlalo esithambileyo oluphuculweyo lubonelela ngokuvalwa okuqinileyo okuthembekileyo ukuze kuthintelwe ukuvuza okuphakathi, nokuba kuphantsi koxinzelelo olupheleleyo okanye oluncinci.

Kukho iindlela ezimbini zokulawula ezinikezelwayo ukuhlangabezana neemfuno ezahlukeneyo zesiza. Inguqulelo yesandla ixhotyiswe ngevili lesandla elandisiweyo, evumela ukusebenza ngesandla okulula kwindawo kwimibhobho emincinci kunye nezikhululo zokuhlola rhoqo. Uhlobo lombane lungafakelwa ii-actuators zombane ezikhusela ukuqhuma ukuze kufezekiswe ulawulo oluzenzekelayo lokuvula nokuvala olukude.

Ulawulo lomgangatho luhamba kuyo yonke indlela yokusebenza yokuvelisa. Ivalvu nganye nganye ivavanywa ngokungqongqo rhoqo ngaphambi kokuba iphume kumzi-mveliso. Iingcali zethu zihlola ngokupheleleyo ukuguquguquka kokusebenza, ukuthembeka kokutywina kunye nokulungelelaniswa kwamacandelo, zisusa ngempumelelo iimpazamo eziqhelekileyo ezifana nokuxinana kweplate, ukuvuza kwangaphakathi kunye nokungaphumeleli kokusebenza ngexesha lenkonzo eqhubekayo ixesha elide.

Xa kuthelekiswa neevalvu zesango le-wedge zesiqhelo, iivalvu zesango lemela zinobukhulu bomzimba obuncinci kakhulu, nto leyo enciphisa kakhulu indawo efunekayo yokufaka kwaye inciphise amaxesha okwakha kwiinkqubo zemibhobho ezintsha nezihlaziyiweyo. Ulwakhiwo lwangaphakathi olulula lunciphisa ubunzima bokugcinwa rhoqo; abaqhubi banokugqiba ukuhlolwa kwendawo kunye nokutshintshwa kwenxalenye ngaphandle kokuyichitha yonke ivalvu kwimibhobho, nto leyo enciphisa kakhulu iindleko zokusebenza kwexesha elide kubanini beempahla.

Olu luhlu lweevalvu zesango lemela lusebenzisa uqhagamshelo oluqhelekileyo lwe-wafer lug, oluhambelana nemigangatho yeflange yepayipi eqhelekileyo yehlabathi, olulungele ukufakwa kweprojekthi yehlabathi. Zisetyenziswa kakhulu ukulawula umbane kwiindawo zokuhambisa amanzi kunye nokuhambisa amanzi, izityalo zonyango lwamanzi amdaka asezidolophini, iinkqubo zamanzi ajikelezayo kwimizi-mveliso, izibonelelo zokujikeleza amanzi epaki kunye nobunjineli be-hydraulic infrastructure.

Sinikezela ngeenkonzo zokwenza ngokwezifiso eziguquguqukayo kumaqabane ehlabathi. Ngaphandle kobukhulu obuqhelekileyo be-DN150, DN200 kunye ne-DN300, singalungisa izixhobo zomzimba, izixhobo zokuvala kunye neentlobo ze-actuator ngokweemeko ezithile zokusebenza. Sigcina amandla emveliso azinzileyo, imigangatho yovavanyo engqongqo kunye nenkxaso epheleleyo emva kokuthengisa kubakhi bobunjineli behlabathi, abahlanganisi beenkqubo zonyango lwamanzi kunye nabasasazi bemibhobho. Injongo yethu kukubonelela ngezisombululo zolawulo lolwelo ezizinzileyo nezingabizi kakhulu ezihambelana neeprojekthi ezahlukeneyo zonyango lwamanzi kunye neziseko zophuhliso zikamasipala kwihlabathi liphela.