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I-NSEN igxile kwi-butterfly valve ukusukela ngo-1983, imveliso yethu ephambili ibandakanya:

I-Flap ene-eccentricity ephindwe kabini/kathathu

Isidambisi somoya obushushu obuphezulu

Ivalvu yeButterfly yokukhupha ityuwa emanzini olwandle

Iimpawu zesakhiwo se-eccentric kathathu

I-Solid MokqhubekayoSi-ealing

Ukutywina okubhekisa kwicala elinye

Ulwandle Olunokutshintshwaisibini se-ling

Ulwakhiwo loKhuseleko oluphindwe kabini

Uyilo oluKhuselekileyo emlilweni

Akukho ndawo ifileyo

Ubomi beNkonzo ende

Akukho kuvuzaukusebenza kokutywina

Ubushushu obuphezulu, Uxinzelelo oluphezulu, alunakumelana nokugqwala

Yenza ngokwezifiso imeko yokusebenza ekhethekileyo