He maha ngā momo takirere pūrerehua, ā, he maha hoki ngā tikanga whakarōpū.
1. Whakarōpūtanga mā te āhua hanganga
(1)takirere pūrerehua porowhita; (2) takirere pūrerehua kotahi-āhua rerekē; (3) takirere takirua-takirere pūrerehua rerekē(4) takirere pūrerehua e toru-āhua rerekē
2. Whakarōpūtanga e ai ki te rauemi mata hiri
(1) Takirere pūrerehua pakari
(2) He takirere pūrerehua hiri-mārō momo-whakarewa. He mea hanga te takirua hiri mai i te rauemi whakarewa mārō ki te rauemi whakarewa mārō.
3. Whakarōpūtanga mā te puka hiri
(1) Takirere pūrerehua hiritia ā-kaha.
(2) Te takirere pūrerehua hiri pēhanga. Ka puta te pēhanga hiri e te wāhanga hiri rapa i runga i te nohoanga, i te pereti rānei.
(3) He takirere pūrerehua hiri aunoa. Ka whakaputahia aunoatia te pēhanga motuhake mō te hiri e te pēhanga waenga.
4. Whakarōpūtanga mā te pēhanga mahi
(1) Te takirere pūrerehua korehau. He takirere pūrerehua he iti iho te pēhanga mahi i te hau paerewa.
(2) He takirere pūrerehua pēhanga iti. He takirere pūrerehua me te pēhanga ingoa o PN≤1.6MPa.
(3) Takirere pūrerehua pēhanga-waenga. Ko te pēhanga ingoa PN ko te takirere pūrerehua o te 2.5∽6.4MPa.
(4) Takirere pūrerehua pēhanga-teitei. Ko te pēhanga ingoa PN ko te takirere pūrerehua o te 10.0∽80.OMPa.
(5) He takirere pūrerehua pēhanga tino teitei. He takirere pūrerehua me te pēhanga ingoa PN <100MPa.
5. Whakarōpūtanga mā te aratau hononga
(1)takirere pūrerehua angiangi
(2) Takirere pūrerehua flange
(3) Takirere pūrerehua
(4) Takirere pūrerehua whakarewa
Ko te takirere pūrerehua porowhita he momo takirere e whakatuwhera ana, e kati ana hoki me te pereti pūrerehua porowhita, ā, ka whakatuwhera, ka kati, ka whakatikatika i te awa wai me te hurihanga o te kakau takirere. Ka tāutahia te pereti pūrerehua o te takirere pūrerehua ki te ahunga diameter o te paipa. I roto i te awa porotaka o te tinana takirere pūrerehua, ka huri te pereti pūrerehua kōpae huri noa i te tuaka, ā, ko te koki hurihanga kei waenganui i te 0 me te 90. Ina tae te hurihanga ki te 90, kua tuwhera katoa te takirere.
Ngā kaupapa matua o te hanganga me te tāutanga
1) Me tutuki te tūranga tāutanga, te teitei, te ahunga kawemai me te kaweake i ngā whakaritenga hoahoa, ā, me pūmau, me piri hoki te hononga.
2) Kaua te kakau o ngā momo takirere ā-ringa katoa e tāutahia ana ki te paipa whakamahana wera e anga whakararo.
3) Me tirotirohia te takirere i waho i mua i te tāutanga, ā, me tutuki te papa ingoa o te takirere i ngā whakaritenga o te paerewa ā-motu o nāianei "Tohu Takirere Whānui" GB 12220. Mō ngā takirere he nui ake te pēhanga mahi i te 1.0 MPa, ā, ka tapahia i te paipa matua, me whakahaere ngā whakamātautau kaha me te mahi piripono i mua i te tāutanga, ā, me whakamahi i muri i te whai tohu. I roto i te whakamātautau kaha, ko te pēhanga whakamātautau he 1.5 ngā wā o te pēhanga ingoa, ā, ko te roanga kaua e iti iho i te 5 meneti. Me whai tohu te anga takirere me te takai me te kore e turuturu. Mō te whakamātautau piripono, ko te pēhanga whakamātautau he 1.1 ngā wā o te pēhanga ingoa; me tutuki te pēhanga whakamātautau i te paerewa GB 50243 mō te roanga o te whakamātautau, ā, me whai tohu te mata hiri takirere.
Te whiriwhiringa o ngā hua matua
1. Ko ngā tawhā whakahaere matua o te takirere pūrerehua ko ngā whakatakotoranga me ngā ine.
2. He pere kotahi te takirere hau o te pūrerehua, he ngāwari te hanganga, he watea te tukatuka, he iti te utu, he ngāwari te whakahaere, engari he ngoikore te tika o te whakatikatika, he pai anake mō te pūnaha hauhautanga me te hauhautanga mō te pana, te whakatikatika rānei i ngā wā katoa.
3. Ka taea te whakamahi ā-ringa, hiko, kumete rānei, ka taea te whakamau i tētahi koki o te 90.
4. Nā te pereti takirere kotahi-tuaka, he iti te kaha o te whāngai, ā, i roto i te āhua o te rerekētanga pēhanga nui, he nui te tere rere ina poto te ora ratonga o te takirere. He momo kati me te momo noa te takirere, he ārai me te kore ārai.
5. He rua noa te momo whakahaere o te takirere pūrerehua hiko, he rite tonu te kaiwhakahaere hiko ki te takirere rau-maha.
Wā tuku: Oketopa-26-2023
