Nui nā ʻano kiwikā, akā like ka hana nui, ʻo ia hoʻi, e hoʻohui a ʻoki paha i ke kahe waena. No laila, ʻike nui ʻia ka pilikia sila o ka kiwikā.
I mea e hōʻoia ai e hiki i ka valve ke ʻoki pono i ke kahe waena me ka ʻole o ka leakage, pono e hōʻoia i ka paʻa o ka sila valve. Nui nā kumu no ka leakage valve, me ka hoʻolālā kūkulu kūpono ʻole, ka ʻili pili sila hemahema, nā ʻāpana paʻa palupalu, ke komo palupalu ma waena o ke kino valve a me ka bonnet, a pēlā aku. Hiki i kēia mau pilikia āpau ke alakaʻi i ka sila maikaʻi ʻole o ka valve. ʻĀ, no laila e hana ana i kahi pilikia leaka. No laila, ʻo ka ʻenehana sila valve kahi ʻenehana koʻikoʻi e pili ana i ka hana a me ka maikaʻi o ka valve, a pono e noiʻi ʻōnaehana a hohonu.
ʻO nā mea sila i hoʻohana pinepine ʻia no nā valves e komo pū me kēia mau ʻano:
1. NBR
ʻO ke kūpaʻa aila maikaʻi loa, ke kūpaʻa kiʻekiʻe o ka ʻaʻahu, ke kūpaʻa wela maikaʻi, ka hoʻopili ikaika. ʻO kona mau hemahema, ʻo ia ke kūpaʻa haʻahaʻa haʻahaʻa, ke kūpaʻa ozone maikaʻi ʻole, nā waiwai uila maikaʻi ʻole, a me ka elasticity haʻahaʻa iki.
2. EPDM
ʻO ka hiʻohiʻona koʻikoʻi o ka EPDM ʻo ia kona kūpaʻa kiʻekiʻe i ka oxidation, ke kūpaʻa ozone a me ke kūpaʻa i ka corrosion. ʻOiai ʻo EPDM no ka ʻohana polyolefin, he mau ʻano vulcanization maikaʻi loa kona.
3. PTFE
He ikaika ka pale ʻana o ka PTFE i nā kemika, kūʻē i ka hapa nui o nā aila a me nā mea hoʻoheheʻe (koe wale nā ketones a me nā esters), kūʻē maikaʻi i ka wā a me ke kūʻē ʻana i ka ozone, akā kūʻē anu maikaʻi ʻole.
4. Hao hao
Hoʻomaopopo: Hoʻohana ʻia ka hao hao no ka wai, ke kinoea a me ka ʻaila me ka mahana o≤100°C a me ke kaomi inoa o≤1.6mpa.
5. Mea hoʻohuihui nikala
Hoʻomaopopo: Hoʻohana ʻia nā mea hoʻohuihui nickel no nā pipeline me ka mahana o -70 ~ 150°C a me ke kaomi ʻenekinia PN≤20.5mpa.
6. Mea hoʻohuihui keleawe
He kūpaʻa maikaʻi ke kopa keleawe a kūpono no nā paipu wai a me ka mahu me ka mahana≤200℃a me ke kaomi inoa PN≤1.6mpa.
Ka manawa hoʻouna: Dec-02-2022
