Nā pono o ka kiwikā puka pālahalaha
He liʻiliʻi ke kū'ē ʻana o ke kahe, a ʻo kona kū'ē ʻana o ke kahe me ka ʻole o ka emi ʻana ua like ia me ka paipu pōkole. Hiki ke hoʻohana pololei ʻia ka valve puka pālahalaha me ka lua hoʻohuli no ka pigging ke kau ʻia ma ka pipeline. ʻOiai ke paheʻe nei ka puka ma luna o nā ʻili noho valve ʻelua, hiki ke hoʻopili ʻia ka wai valve puka pālahalaha i ka medium me nā ʻāpana i hoʻokuʻu ʻia, a ua kau ʻia ka ʻili sila o ka valve puka pālahalaha. ʻAʻole e hōʻino ʻia ka ʻili sila o ka noho valve e ka deformation thermal o ke kino valve. Eia kekahi, inā pani ʻia ka valve i ke kūlana anuanu, ʻaʻole e hoʻouka nui ka elongation thermal o ke kumu valve i ka ʻili sila. I ka manawa like, i ka wā e pani ʻia ai ka valve, ʻaʻole pono ka valve puka pālahalaha me ka lua hoʻohuli ʻole i ke kūlana pani o ka puka e loaʻa ai ka pololei kiʻekiʻe, no laila hiki i ka valve pālahalaha uila ke hoʻohana i ka hahau e kāohi i ke kūlana wehe a me ka pani ʻana.
ʻO nā hemahema o ka valve puka pālahalaha
Ke haʻahaʻa ke kaomi waena, ʻaʻole lawa ka ikaika sila o ka ʻili sila metala e hoʻokō ai i kahi sila kūpono. I ka ʻaoʻao ʻē aʻe, ke kiʻekiʻe ke kaomi waena, inā ʻaʻole i lubricated ka ʻili sila e ka ʻōnaehana medium a i ʻole ka medium waho, ʻo ka wehe pinepine ʻana a me ka pani ʻana e hiki ke hana i ka nui o ka ʻili sila. ʻO kekahi hemahema, ʻo ka puka poepoe e neʻe ana ma ka ʻaoʻao ma ke kahawai kahe poepoe e ʻike wale ʻia i ka kaohi kahe ke hiki i ka 50% o ke kūlana pani valve. Eia kekahi, e haʻalulu ikaika ka puka ke hoʻopau ʻia ke kahe wikiwiki a me ke kiʻekiʻe o ka media. Inā hana ʻia ka noho valve i loko o kahi puka V-ʻano a alakaʻi paʻa ʻia me ka puka, hiki ke hoʻohana ʻia ma ke ʻano he throttle.
ʻO Nortech kekahi o nā mea hana valve ʻoihana alakaʻi ma Kina me ka palapala hōʻoia maikaʻi ISO9001.
Ka manawa hoʻouna: ʻAukake-13-2021