Ngā paipa rino makaka whakamātautauhia te piri me te whakamātautau huringa wai wera me te wai matao i runga anō i te EN877, ko te mea nui ko te aromatawai i te pono me te pakari o ā rātou pūnaha paninga ārai-waikura mō te wā roa, inā koa i raro i ngā āhuatanga mahi tūturu. Ko te tikanga, ka aro atu ēnei whakamātautau ki ngā paninga kua pania ki ngā mata o roto me waho o ngā paipa SML (pēnei i ngā kapia epoxy, ngā polyurethane, me ngā arai moata sima). Ka ine tika te whakamātautau piri i te kaha o te hononga i waenga i te paninga me te konganuku turanga o te paipa rino maka. Ka whakatauira ngā whakamātautau huringa wai wera me te wai matao i ngā huringa pāmahana huringa e pā ana ki ngā paipa i te whakamahinga tūturu, ka aromatawai i te pumau mō te wā roa o te pūnaha paninga i raro i ēnei ahotea wera tauutuutu.
Whakamātautau Piri;
Me tirotiro te piri o te paninga ki ngā tauira anake i ahu mai i ngā hua kua oti mā te whakamātautau tapahi whakawhiti e ai ki te EN ISO 2409, penei:
- tauira whakamātautau: he wāhanga iti rawa 100 mm te roa i tapahia mai i tētahi paipa, i tētahi hononga rānei kua pania, he pai ake te rahi DN 100 pea te iti rawa;
- te maha o ngā tapahi: 6;
- te mokowā o ngā tapahi: 2 mm (3 mm mō ngā paninga he rite, he nui ake rānei te matotoru i tohua e te kaihanga i te 120 µm);
- Me rite ngā hua ki te Ripanga 1.
Ripanga 1:
Ātete ki te huringa pāmahana
Me whakahaere te whakamātautau ki ngā tauira anake i ahu mai i ngā hua kua oti. Me whakahaere te huihuinga whakamātautau i roto i te 1500 huringa o te whakawhiti wai wera me te wai matao i runga anō i te kaupapa e whai ake nei:
a) (30 + 1) rita o te wai i te pāmahana o (93 + 2) °C mō te wā 1 meneti, i te tere rere pumau,
b) he wā okioki me te tango wai mō te 1 meneti;
c)(30 + 1) rita o te wai i te pāmahana o (15 + 5)°C mō te wā 1 meneti, i te tere rere pumau,
d) wā okioki me te tango wai mō te 1 meneti
Me ine te pāmahana o te wai i te wāhi e tomo ai.Kei te Pikitia 3 tētahi tauira o tētahi whakatakotoranga whakamātautau noa.
I muri i te whakamutu i te whakamātautau, me horoi tonu ngā paipa me ngā hononga kia kore ai e puta he paru. Kātahi ka tapahia ngā paipa kia roa, ā, ka tirohia ngā paninga o roto mō te nui o te pupuhi me te waikura, kaua e neke ake i ngā taumata e whai ake nei:
Te nui o te pupuhi: Ahu 3, akomanga 3 e ai ki te EN IS0 4628-2:
Te nui o te waikura: Ri 2 e ai ki te EN IS0 4628-3.
Wā tuku: Akuhata-04-2025
