Kutshanje, iqela lee-headlessiivalvu zebhabhathane ezisicabaEzi zixhobo zisuka kumzi-mveliso wethu zipakishwe ngempumelelo, zinobukhulu be-DN80 kunye ne-DN150, kwaye kungekudala ziza kuthunyelwa eMalaysia. Le bhakethi yeevalvu zebhabhathane ze-clamp yerabha, njengohlobo olutsha lwesisombululo sokulawula ulwelo, ibonakalise iingenelo ezibalulekileyo kwizicelo ezininzi zoshishino ngenxa yoyilo lwayo olwahlukileyo lwesakhiwo kunye neempawu zezinto ezibonakalayo.

Okokuqala, xa kuthelekiswa nemveliiivalvu zebhabhathane ezijijekileyoIivalvu zebhabhathane ze-clamp yerabha zisebenzisa irabha elastiki esemgangathweni ophezulu njengezinto zokutywina, ezingaphuculi kuphela ukusebenza kokutywina kwevalvu, kodwa zandisa ubomi benkonzo yemveliso ngokufanelekileyo. Kwiimeko ezinzima zokusebenza ezifana nobushushu obuphezulu, uxinzelelo oluphezulu, okanye iimeko zemidiya ezirhabaxa, iivalvu zebhabhathane ze-clamp yerabha ezisebenzisa ngesandla zisenokugcina iimeko zokusebenza ezilungileyo, zinciphisa iindleko zokulungisa kunye nexesha lokungasebenzi.

Okwesibini, uyilo lwevalvu yebhabhathane yerabha i-Dn200 ilula kwaye iyasebenza. Indlela yayo yokufaka uhlobo lwe-clamp ivumela ivalvu ukuba ifakwe ngokukhawuleza kwaye itshintshwe ngaphandle kokuyichitha ipayipi, nto leyo ephucula kakhulu ukusebenza kakuhle. Olu yilo lukwathetha ukuba ivalvu ithatha indawo encinci, nto leyo ngokungathandabuzekiyo iluncedo olukhulu kwiindawo zoshishino ezinesithuba esincinci.

Iivalvu zebhabhathane zexabiso le-clamp yerabha zifanelekile ukuthutha ulwelo kunye neegesi (kuquka umphunga) kunye nezinye izinto ezisetyenziswa kwiintlobo ngeentlobo zemibhobho yemizi-mveliso. Zingasetyenziswa kwiindawo ezisetyenziswa ulwelo ezibola kancinci kwaye zisetyenziselwa ulawulo lweendawo ezimbini zokutshintsha okanye ukulungiswa kwesantya sokuhamba esiphakathi. Zisetyenziswa kakhulu ekutyeni, kumayeza, kwiikhemikhali, kwipetroli, kumandla, kwilaphu, ephepheni nakwezinye iindawo. Ubushushu bayo bokusebenza ngokubanzi abudluli kwi-180 ℃, kwaye uxinzelelo oluqhelekileyo yi-≤ 1.6MPa.

Ukongeza, ivalvu yebhabhathane yesiphatho serabha esinamaqhosha kulula ukuyisebenzisa, ngokuvula nokuvala ngokukhawuleza okufezekiswa ngokujikelezisa isiqu sevalvu, isantya sokuphendula ngokukhawuleza, kunye nokuchaneka okuphezulu kokulawula, okwenza ukuba ifaneleke kakhulu kwiimeko apho kufuneka ukulungiswa rhoqo kokuhamba kwamanzi. Ngaphezu koko, ngenxa yobunzima bayo obulula kunye nobukhulu bayo obuncinci, ukuthuthwa nokufakelwa kulula kakhulu, kusindisa iindleko ezixabisekileyo zothutho kunye nabasebenzi kumashishini.