Kiwikā nānāʻIke ʻia hoʻi ka valve nānā ʻo ia hoʻi ka valve ala hoʻokahi a i ʻole ka valve nānā, ʻo kāna hana ke pale aku i ke kahe ʻana o ka wai i loko o ka pipeline. ʻO ka valve lalo o ka pamu e pani ai i ka wai no ka māhele valve hoʻi ʻole. ʻO ka valve e wehe a pani paha iā ia iho ma o ke kahe a me ka ikaika o ka medium e pale aku i ke kahe ʻana o ka wai i hope ua kapa ʻia he valve nānā. No nā valve nānā nā valves i ka māhele o nā valves aunoa. Hoʻohana nui ʻia nā valves nānā i nā pipelines kahi e kahe ai ka wai i hoʻokahi ʻaoʻao, a ʻae wale i ke kahe o ka wai i hoʻokahi ʻaoʻao e pale aku i nā pōpilikia. Wahi a ke ʻano o ka valve nānā, hiki ke hoʻokaʻawale ʻia i ʻekolu ʻano: valve nānā hāpai, valve nānā wili a me ka valve nānā pepeke. Hiki ke hoʻokaʻawale ʻia nā valve nānā hāpai i ʻelua ʻano: nā valve nānā kū a me nā valve nānā ākea. Ua hoʻokaʻawale ʻia nā valve nānā wili i ʻekolu ʻano: valve nānā lau hoʻokahi, valve nānā hana pālua a me ka valve nānā lau he nui. ʻO ka valve nānā pepeke he valve nānā pololei. Hiki ke hoʻokaʻawale ʻia nā valve nānā i ʻōlelo ʻia ma luna i ʻekolu ʻano ma ke ʻano pili: valve nānā wili, valve nānā flanged a me ka valve nānā welded.
Pono e hoʻolohe i ke kau ʻana o ka valve nānā i kēia mau mea: Mai hoʻokau i ke kaumaha o ka valve nānā i loko o ka pipeline, a pono e kākoʻo kūʻokoʻa ʻia ka valve nānā nui i ʻole e hoʻopilikia ʻia e ke kaomi i hana ʻia e ka ʻōnaehana paipu.
I ke kau ʻana, e hoʻolohe i ke kuhikuhi o ke kahe waena e kūlike me ke kuhikuhi o ka pua i koho ʻia e ke kino valve.
Pono e hoʻokomo ʻia ka valve hōʻoia kū pololei ʻano hāpai ma ka pipeline kū. Pono e hoʻokomo ʻia ka valve hōʻoia ʻaoʻao ākea ʻano hāpai ma ka pipeline ākea.
Nā palena hana nui o ka valve nānā: Kaomi inoa a i ʻole ka pae kaomi: PN1.0-16.0MPa, ANSI CLASS1 50-900, JIS 10-20K, anawaena inoa a i ʻole caliber: DN15-900.
NPS 1/4-36, ʻano hoʻohui: flange, butt welding, thread, socket welding, etc., mahana kūpono: -196℃-540℃, mea kino valve: WCB.
ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8 (304), CF3 (3041), CF8M (316), CF3M (316L), Ti, koho i nā mea like ʻole, hiki ke hoʻohana ʻia nā kiwikā nānā no ka wai, ka mahu, ka ʻaila, ka waikawa nitric, ka waikawa acetic, ka oxidation i nā pāpaho moekolohe, urea a me nā pāpaho ʻē aʻe.