I-valve yokusakaza iphonswa ku-valve, izinga lokucindezela kwe-valve elijwayelekile liphansi kakhulu (njenge-PN16, PN25, PN40, kodwa futhi kukhona ukucindezela okuphezulu, kungaba ngu-1500Lb, 2500Lb), izinga eliphezulu kakhulu kune-DN50.I-valve eyakhiwe yenziwa ngomgunyathi, ngokuvamile isetshenziswa epayipini lezinga eliphezulu, izinga...
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