DN20
E whakamahia whānuitia ana i roto i ngā hononga kāore e hiahiatia he āhuatanga motuhake, he rauemi motuhake rānei, ka tukuna e ngā takirere pōro PN25 he hiri roa me te mahi pono. Ka tirotirohia ngā takirere pōro ritenga mai i I-FLOW mā te hoahoa uaua me te whakamātautau kounga pakari kia tutuki ai te mahi taumata-hou.
Teitei o te Tika: Ka whakarite i te whakahaere tika o te pāmahana mā te whakatuwhera, te kati rānei i te takirere hei whakautu ki ngā piki me ngā heke o te pāmahana.
Te Pakari: He mea hanga mai i ngā rauemi kounga teitei, kia roa ai te mahi i roto i ngā taiao pēhanga teitei me te pāmahana teitei.
Ngā Whakamahinga Whānui: E whakamahia whānuitia ana i roto i ngā pūnaha HVAC, ngā pūnaha whakamatao ahumahi, me ngā tukanga tairongo-mahana i roto i ngā rāngai pēnei i te kai me te inu, ngā rongoā, me te hanga matū.
| DN | L | Taumaha (g) |
| 1/4” | 41 | 80 |
| 3/8” | 47 | 120 |
| 1/2” | 57.5 | 240 |
| 3/4” | 61.5 | 310 |
| 1” | 70 | 450 |
| 1 1/4” | 79 | 608 |
| 1 1/2” | 86 | 893 |
| 2” | 97 | 1181 |
| 2 1/2” | 100 | 1906 |
| 3” | 113 | 3120 |