ʻO ka pāpaʻi Teflon he valve e hoʻohana ana i ka polytetrafluoroethylene (PTFE, i kapa ʻia ʻo Teflon) ma ke ʻano he mea hoʻopaʻa, a hoʻohana nui ʻia i nā kula he nui ma muli o kāna mau pono hana kūikawā. E hōʻike ana kēia pepa i nā pono o ka hana a me nā kahua noi o ka ʻehā-fluorine lined valve.
ʻO ka mea mua, ʻo nā pono hana o nā valve PTFE
1. ʻOi aku ka maikaʻi o ka corrosion kū'ē: ʻo ka ili hoʻopaʻa ʻana o ka valve teflon i hana ʻia me ka polytetrafluoroethylene material, nona ke kūlana kiʻekiʻe kiʻekiʻe a hiki ke pale aku i ka corrosion o ka hapa nui o nā media kemika, me nā waikawa ikaika, alkali, nā mea hoʻoheheʻe organik, etc., pēlā e hana ai. maikaʻi ma ke kahua o ka halihali media corrosive.
2. He haʻahaʻa haʻahaʻa haʻahaʻa o ka friction: PTFE he haʻahaʻa haʻahaʻa loa o ka friction (0.05-0.1), e hiki ai i ka valve PTFE ke hoʻokō i ka neʻe maʻalahi i ka wā e wehe ai a pani ʻia, e hoʻemi ana i ka torque hana a hoʻemi i ka hoʻohana ʻana i ka ikehu o nā mea hana.
3. Anti-viscosity: polytetrafluoroethylene he anti-viscosity maikaʻi, hiki ke pale i ka mea mai ka hoʻopili ʻana i ka ʻili o ka sila a hoʻemi i ka hana mālama o ka valve.
4. Hiki ke hoʻololi i ke ana wela: hiki ke hana i ka mea hoʻopaʻa o ka pahu PTFE i hoʻopaʻa ʻia ma ka laulā o -200 ° C a hiki i 260 ° C no ka manawa lōʻihi, a hiki ke kū i nā mahana kiʻekiʻe i ka manawa pōkole, kahi e hiki ai i ka PTFE lined valve ke lilo. hoʻohana ʻia i nā ʻano wela like ʻole.
5. Hana palekana: No ka hoʻohanaʻana o ka valveʻehā-fluorine i nā mea non-metallic e like me ka mea e hoʻopaʻa ai,ʻaʻole ia e hana i nā meaʻino ma lalo o nā kūlana koʻikoʻi e like me ke kiʻekiʻe o ka mahana a me ke kiʻekiʻe kiʻekiʻe, no laila, he hana palekana kiʻekiʻe.
ʻO ka lua, ke kahua noi o nā kiwi PTFE laina
1. ʻOihana Kemika: Hoʻohana nui ʻia nā valves PTFE lined i ka ʻoihana kemika, ʻoi aku ka maikaʻi o ka media corrosive, ka waikawa ikaika a me nā wahi alkali, hiki i nā kiwi laina PTFE ke hōʻoia i ka hana palekana o nā mea hana a hoʻemi i nā kumukūʻai mālama.
2. ʻOihana Petroleum: I loko o ka ʻoihana ʻaila, hoʻohana pinepine ʻia nā valves PTFE i ka lawe ʻana i ka ʻaila, ke kinoea maoli a me nā mea media ʻē aʻe, a ʻo kona kūpaʻa maikaʻi ʻana i ka corrosion a me ka hoʻopaʻa ʻana i ka hana e hoʻolilo i nā valve lined PTFE i ka valve makemake i ka ʻoihana ʻaila.
3. ʻO ka lāʻau lapaʻau: ʻO kaʻoihana lāʻau lapaʻau he mau koi kiʻekiʻe no ka maʻemaʻe a me ka palekana o nā mea hana, aʻo ka valve tetrafluorolined e hoʻokō pono i kēia mau koi, no laila ua hoʻohana nuiʻia i kaʻoihana lāʻau.
4. ʻOihana uila: ʻO ka hoʻohana ʻana o ka PTFE lined valves i ka ʻoihana uila e hōʻike nui ʻia i ka lawe ʻana a me ka mālama ʻana i nā kinoea a me nā wai maʻemaʻe kiʻekiʻe, a hiki i kāna hana maikaʻi ke hōʻoia i ka hana paʻa o nā lako uila.
6. Meaʻai meaʻai: Ma muli o ka maikaʻi anti-viscosity a me ka anti-corrosion waiwai o PTFE lined valves, ua hoʻohana nui ia i loko o kaʻoihana meaʻai, e like me ka maikaʻi hana i ka lawe kiʻekiʻe-viscosity media e like me ka syrup a me ka wai.
I ka hōʻuluʻulu manaʻo, ua hoʻohana nui ʻia nā kīwaha PTFE laina i nā kula he nui ma muli o kā lākou hana maikaʻi loa. Me ka hoʻomau mau ʻana o ka ʻepekema a me ka ʻenehana, e hoʻonui hou ʻia ke kahua noi o PTFE lined valves i ka wā e hiki mai ana.
Ka manawa hoʻouna: Sep-08-2023
