Kwiminyaka embalwa edlulileyo, siqaphele ukuba imfuno yevalvu enkulu yebhabhathane inyuke kakhulu, ubukhulu obuhlukileyo ukusuka kwi-DN600 ukuya kwi-DN1400.

Oko kungenxa yokuba ulwakhiwo lwevalvu yebhabhathane lufanelekile ngokukodwa ekwenzeni iivalvu ezinkulu, ezinesakhiwo esilula, ubungakanani obuncinci kunye nobunzima obulula.

Ngokubanzi, iivalvu ezinkulu zebhabhathane zisetyenziswa kwimibhobho yamanzi amdaka, kwimibhobho yeoyile, kwimibhobho yokuhambisa amanzi, kwiiprojekthi zokugcina amanzi, kwizakhiwo zikamasipala nakwezinye iindawo. Ngoku imibhobho yamanzi ejikelezayo ngokusisiseko itshintshelwa kwizivali eziqinileyo ezintathu, ngenxa yokuba zisebenza ixesha elide kwaye azinakugcinwa.

I-NSEN ikulungele ukuthumela iqela levalvu equlethe ivalvu yobukhulu be-DN600 kunye ne-DN800 kule veki, ulwazi oluphambili lungezantsi;

Ivalvu yebhabhathane emithathu engaqhelekanga

Umzimba: WCB

Idiski: WCB

Isiqu: 2CR13

Ukutywina: SS304+Graphite

Isihlalo: D507MO Overlay (isihlalo sokulungisa)