ʻO nā huahana nui o "GILL" ka hapa nui o ka manual a me nā mea hana worm uila, e like me nā kūlana GB / T12223, ISO 5211 a me nā koi ʻē aʻe, ua hoʻohana nui ʻia nā huahana no ka hoʻokele valve, e like me ka Butterfly valve / Kiwi pōʻalo/Plug valve/ a me nā ʻano ʻē aʻe.ʻO ka mea kino o ka worm gear ka nui o QT450 a me nā mea ʻē aʻe, hiki i nā mea hana: QT450-10, QT500-7, QT600-3, C95800 a me nā mea ʻē aʻe.ʻO ka mea hou aku, hiki iā GILL ke hoʻopilikino i nā worm gears a i ʻole nā mea hoʻoili me ka hoʻohana kiʻekiʻe.
