He aha ka puka pā? He mea pani ia e wehe a pani i ke kahe o ka wai i lawe ʻia e ka ʻōnaehana paipu (a i ʻole ka pipeline). ʻO ka ʻīpuka ʻīpuka he pahu kuhikuhi ʻelua, no ka mea hiki ke kahe ka wai i kēlā me kēia ʻaoʻao. ʻO ka hoʻokomo ʻana o kēia ʻano valve e hana i kahi hāʻule haʻahaʻa haʻahaʻa i loko o ka pipeline, haʻahaʻa ma mua o nā valve honua. Ua hana nā ʻīpuka puka i nā kino no ka nui o ka lua ma lalo o 2 iniha (API 602/BS 5352), a ua hoʻolei ʻia nā kino no nā nui nui (API 600, API 603, API 6D).
He aha ka puka pā? He mea pani ia e wehe a pani i ke kahe o ka wai i lawe ʻia e ka ʻōnaehana paipu (a i ʻole ka pipeline). ʻO ka ʻīpuka ʻīpuka he pahu kuhikuhi ʻelua, no ka mea hiki ke kahe ka wai i kēlā me kēia ʻaoʻao. ʻO ka hoʻokomo ʻana o kēia ʻano valve e hana i kahi hāʻule haʻahaʻa haʻahaʻa i loko o ka pipeline, haʻahaʻa ma mua o nā valve honua. Ua hana nā ʻīpuka puka i nā kino no ka nui o ka lua ma lalo o 2 iniha (API 602/BS 5352), a ua hoʻolei ʻia nā kino no nā nui nui (API 600, API 603, API 6D).
ʻO nā pōmaikaʻi nui o kēia ʻano valve:
Maʻalahi e mālama a wehe
ʻOi aku ka maikaʻi e like me ka valve pani
ʻElua ʻaoʻao
Kumukuai haahaa
Hiki ke hoʻohana ʻia me nā slurries a me nā wai viscous
Loaʻa i nā nui nui
Paʻa i ke ahi (ke hoʻohana ʻia me ka pepa metala)
ʻO nā hemahema:
Wehe a pani lohi ka manawa
Nā palena haʻahaʻa haʻahaʻa
Hiki ke ho'opau i ka noho a me ka diski
Nā hiʻohiʻona throttling maikaʻi ʻole
Paʻakikī e hoʻoponopono
NA ANO PAPUWA PUKA
HAAWINA HELE
ʻO kēia ke ʻano maʻamau, uhi ʻia e ka API 600 (carbon and alloy steel) a me API 603 (stainless steel and higher grades). Loaʻa nā kiwi puka kila kila ma nā nui ma luna o 2 iniha, a hiki i 80 iniha.
HAAWINA PALAPALA
Hoʻohana ʻia nā kiwi kila forged no nā paipu liʻiliʻi, ma lalo o 2 iniha ke anawaena. Hoʻopili nā kikoʻī API 602 a me BS 5352 i kēia ʻano o nā ʻīpuka puka.
API 6D NO NA PIPILI
ʻO kēia nā ʻīpuka puka no nā paipu a loaʻa i nā manaʻo kī ʻelua, ʻo ka pā a me ka puka hoʻonui.
SEAL PILI
Hoʻohana ʻia nā kiwi puka paʻi paʻi no nā noi kiʻekiʻe. ʻO nā ʻano valve maʻamau no ka hoʻohana ʻana i ke kaomi kiʻekiʻe, ʻo ia ka wedge hikiwawe a me ka valve seal paheʻe paheʻe like. Loaʻa iā lākou me nā kino hoʻolei ʻia a i hoʻopaʻa ʻia paha, ma nā ana mai 2 a 24 iniha a me ka helu kaomi mai 600# a 4500#, me ka weld socket a i ʻole ka weld butt, e hoʻopau e hōʻoia i nā pilina pili flanged paʻa (akā hiki nō nā hopena flanged).
Ka manawa kau: Oct-26-2019