E like me ka sealing surface material,kiwi pukahiki ke hoʻokaʻawale ʻia i ʻelua ʻano: sila paʻakikī a me ke sila palupalu.He aha ka ʻokoʻa ma waena o ka pāpaʻi sila palupalu a me ka pāpaʻi sila paʻakikī:
ʻO ka pahu paʻa paʻa paʻa paʻa: ʻO nā mea hoʻopaʻa paʻa ma nā ʻaoʻao sila ʻelua he mau mea metala, i kapa ʻia ʻo "seal paʻakikī".ʻO ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa ʻaʻahu, nā waiwai mechanical maikaʻi e like me: ke kila + kila;kila + keleawe;kila
+ graphite;kila + kila kila.ʻO nā mea hoʻopaʻa hoʻopaʻa maʻamau: 13Cr stainless steel, paʻakikī paʻa paʻa paʻa, sprayed tungsten carbide, etc.
ʻO ka valve seal gate valve: ua hana ʻia ka hui sila i nā mea metala ma kekahi ʻaoʻao a me nā mea elastic non-metallic ma kekahi ʻaoʻao, i kapa ʻia ʻo "seal soft".He maikaʻi ka hana hoʻopaʻa ʻana o kēia ʻano sila, akā ʻaʻole kūʻē i ka wela kiʻekiʻe, maʻalahi ke ʻaʻahu, a me nā waiwai mechanical maikaʻi ʻole.E like me: ke kila + kaila;kila + PTFE, etc. 'O ia ho'i, ua hana 'ia kekahi 'ao'ao o ka paipa sila i nā mea me ka 'o'ole'a ha'aha'a.ʻO ka ʻōlelo maʻamau, hana ʻia ka noho sila palupalu i nā mea non-metallic me kekahi ikaika, paʻakikī a me ka pale wela.Loaʻa iā ia ka hana hoʻopaʻa sila maikaʻi a hiki ke hoʻokō i ka leakage zero, akā lōʻihi kona ola.Ke hoʻohālikelike ʻia me ka maikaʻi ʻole o ka hoʻololi ʻana i ka mahana, ua hana ʻia ka sila paʻakikī me ka metala, a ʻoi aku ka maikaʻi o ka hana sealing, ʻoiai ke ʻōlelo nei kekahi mau mea hana hiki ke hoʻokō i ka leakage zero.ʻO ke kumu o ka hoʻomohala ʻana o ka valve sealing gate valve: e hoʻoponopono i ka pilikia o ka noho valve a me ka ʻili o ka pā valve i hoʻopau ʻia a i ʻole deformed, hiki i ka pā valve ke hoʻopaʻi maʻalahi no ka uhi paʻa paʻa a me ke kaulike ʻakomi kaomi ʻO ka pilikia o ka ili hoʻopaʻa, no ka mea hiki ke hoʻololi i ka lima hoʻopaʻa paʻa o ka valve, e hoʻonui nui i ka hoʻohana ʻana i ka valve.
ʻO ka laulā maʻamau o ka valve seal paʻakiki: anawaena (p50-p400mm, kaomi 2.5-4.0MPa, nā wai wela maʻamau ma lalo o 200 ℃).
ʻAʻole hiki i ka sila palupalu ke hoʻokō i nā koi kaʻina no kekahi mau mea corrosive, a hiki i ka sila paʻakikī ke hoʻoponopono iā ia!
Hiki i kēia mau ʻano sila ʻelua ke hoʻokō kekahi i kekahi.Ma keʻano o ka paʻa paʻa, ua maikaʻi ka sila palupalu, akā i kēia manawa hiki i ka paʻa o ka sila paʻakikī ke hoʻokō i nā koi kūpono!ʻO ka maikaʻi o ka sila palupalu he hana hoʻopaʻa maikaʻi, akā ʻo ka hemahema ʻo ia ka maʻalahi o ka makahiki, ʻaʻahu, a he pōkole ke ola lawelawe.He lōʻihi ke ola lawelawe o ka sila paʻakikī, akā ʻoi aku ka maikaʻi o ka paʻa ʻana ma mua o ka sila palupalu.