(1) he maamaa ake te hanganga o te puera o te ao i te paera kuaha, a he pai ake te hanga me te tiaki.
(2) Ko te mata hiri kaore i te ngawari ki te kakahu me te pakaru, te pai o te hiri, te tuwhera me te kati i waenga i te kōpae takirere me te mata hiri o te tinana takirere me te kore e paheke whanaunga, no reira karekau he taumaha te kakahu me te rakuraku, he pai te mahi hiri, te roa o te mahi.
(3) i te wa e whakatuwhera ana me te kati, he iti te whiu o te kōpae, na reira he iti ake te teitei o te paera o te ao i te paera o te kuaha, engari he roa ake te roa o te hanganga i te paera kuaha.
(4) he nui te whakatuwheratanga me te kati kati, he mahi te whakatuwhera me te kati, ko te wa whakatuwhera me te kati te tumuaki.
(5) he nui te parenga o te wai, na te mea ko te hongere waenga i roto i te tinana takirere he kopikopiko, he nui te parenga wai, he nui te kai mana.
(6) i te mea he iti iho te pehanga Pn i te ahunga o te rere reo i te 16Mpa, ko te tikanga kei raro, ka rere te reo mai i te ahunga o raro o te kōpae takirere;Te pehanga ingoa Pn ≥ 20Mpa, i te nuinga o te waa ka whakamahi i te rerenga, te rere reo mai i te ahunga o te kōpae.Hei whakanui ake i te kaha hiri.I te wa e whakamahia ana, ka taea anake te rere o te reo takirere tapahi ki te huarahi kotahi, kaore e taea te whakarereke i te ahunga o te rere.
(7) i te wa e puare katoa ana, he maha nga wa ka pakaru te kōpae.
Ko te tuaka o te kakau takirere o te takirere ao e tika ana ki te mata hiri o te nohoanga takirere.He poto te whiu o te kakau tuwhera/kati, a he tino pono te mahi tapahi, e pai ai tenei takirere mo te tapahi-a-waenga, te whakahaere me te whakamahi i te tarai.

Ko Nortech tetahi o nga kaihanga riipene ahumahi nui i Haina me te tiwhikete kounga ISO9001.

Hua matua:Rererererererere,Pooro Pooro,Takiwa kuwaha,Takitaki takirere,Globe Vavlve,Y-Rangi,Acurator Hiko,Acurators Pneumatic.