Ko te paerewa AWWA te tuhinga whakaae tuatahi a te American Water Works Association i te tau 1908. I ēnei rā, neke atu i te 190 ngā Paerewa AWWA. Mai i te pūtake ki te rokiroki, mai i te maimoatanga ki te tohatoha, ka hipokina e ngā Paerewa AWWA ngā hua me ngā tukanga e pā ana ki ngā wāhanga katoa o te maimoatanga me te tuku wai. Ko te AWWA C504 tētahi o ngā tohu noa, he momo takirere pūrerehua nohoanga paru.
E rua ngā āhua o te takirere pūrerehua AWWA C504, ko te hiri ngohengohe raina waenga me te hiri ngohengohe āhua rua. Ko te tikanga, he iti ake te utu o te hiri ngohengohe raina waenga i te āhua rua, ko te tikanga, ka mahia tēnei i runga i ngā hiahia o ngā kiritaki. Ko te pēhanga mahi mō te AWWA C504 he 125psi, 150psi, 250psi, ko te tere pēhanga hononga flange he CL125, CL150, CL250.
Ko te takirere pūrerehua AWWA C504 te mea e whakamahia nuitia ana i roto i ngā kaupapa maimoatanga wai, ko te wai kāore he poke te reo e hiahiatia ana, ko ngā āhuatanga o te hiri rapa ka whakapakari i te mahi hiri o te takirere, kia kore ai e turuturu te takirere. I te kōwhiringa o te rauemi tinana takirere, ko te rino ngāwari te mea matua, ā, muri iho ka taea hoki te maitai waro. Kei te wātea te kōwhiringa o te mowhiti hiri kōpae takirere, EPDM, NBR, NR, kia rite ki ngā hiahia o te kiritaki ki te whiriwhiri.
Ki te whakatauritea ki ngā takirere pūrerehua raupapa EN558-13,14, he matotoru ake te tinana o te takirere pūrerehua AWWA C504, he matotoru ake hoki te diameter o te miro, ā, he iti noa iho ngā rerekētanga o ētahi atu inenga, ka kitea i te ripanga inenga e whai ake nei. Ko te tikanga, mō te mahi, kāore he rerekētanga nui ki ētahi atu takirere pūrerehua hiri-rapa.
Ko ēhea ngā kaihanga ka taea te hanga i te takirere pūrerehua AWWA C504 i Haina? Ki taku mōhio, kāore i te maha ngā kaihanga ka taea te hanga i te takirere pūrerehua AWWA C504, he maha ngā wheketere he nui ake te wheako ki te whakaputa i te takirere pūrerehua raupapa EN558-13/14, ā, kāore i te nui te wheako ki te whakaputa i te takirere pūrerehua AWWA C504, ko Tianjin Zhongfa Valve tētahi o ngā kaihanga ka taea te whakaputa i te takirere pūrerehua AWWA C504, kei a Zhongfa Valve tana ake pokepokea me tana ake awheawhe tukatuka, ka taea te whakaoti i te hanga o te takirere pūrerehua me te kounga me te rahinga.
Ko te takirere pūrerehua tēnei o te AWWA C504 i hangaia e Tianjin Zhongfa Valve. Mena kei te hiahia koe ki te mōhio atu mō ngā hua AWWA C504, whakapā mai ki a mātou.
