Ma waho aʻe o ka wai, ʻo ka hapa nui o nā mea hoʻohana i hoʻohana ʻia i ka mea hoʻololi wela plate he lean solution, rich solution, sodium hydroxide, sulfuric acid a me nā mea kemika ʻē aʻe, kahi mea maʻalahi ke hana i ka pala o ka papa a me ka pehu a me ka ʻelemakule o ka gasket.
ʻO ka pā a me ka gasket nā mea nui o ka mea hoʻololi wela pā, no laila he mea nui loa ke koho ʻana i ka mea pā a me ka gasket.
Koho ʻana i nā mea pā o ka mea hoʻololi wela pā:
| Wai i hoʻomaʻemaʻe ʻia, wai muliwai, ʻaila ʻai, ʻaila mineral a me nā mea hana ʻē aʻe | kila kila (AISI 304, AISI 316, etc.). |
| ka wai kai, ka brine, ka salinization a me nā mea hana ʻē aʻe | titanium a me ka titanium palladium (Ti, Ti-Pd) |
| E hoʻoheheʻe i ka waikawa sulfuric, e hoʻoheheʻe i ka hopena wai paʻakai sulfur, ka hopena wai inorganic a me nā mea ʻē aʻe | 20Cr, 18Ni, 6Mo (254SMO) a me nā mea hoʻohui ʻē aʻe |
| Ka mahana kiʻekiʻe a me ka nui o ka soda caustic medium | Ni |
| ʻO ka waikawa sulfuric i hoʻopaʻa ʻia, ka waikawa hydrochloric a me ka phosphoric acid medium | ʻO ka hui Hastelloy (C276, d205, B20) |
Koho mea o ka gasket no ka mea hoʻololi wela pā:
Ua ʻike ka hapa nui o ka poʻe he mau mea hoʻohana maʻamau nā gaskets sila rapa, e like me EPDM, nitrile rubber, hydrogenated nitrile rubber, fluororubber a pēlā aku.
| EPDM | ʻO ka mahana lawelawe he - 25 ~ 180 ℃. He kūpono ia no ka wai wela nui o ka wai, ka mahu, ka ozone lewa, ka ʻaila lubricating ʻaʻole i hoʻokumu ʻia i ka petroleum, ka waikawa nāwaliwali, ketone, ka waiʻona, ka ester, a pēlā aku. |
| NBR | ʻO ka mahana lawelawe he - 15 ~ 130 ℃. He kūpono ia no nā huahana aila mineral like ʻole e like me ka wai waena, ka ʻaila wahie māmā, ka ʻaila lubricating, ka ʻaila holoholona a me ka ʻaila mea kanu, ka wai wela, ka wai paʻakai, a pēlā aku. |
| HNBR | ʻO ka mahana lawelawe he - 15 ~ 160 ℃. He kūpono ia no ka wai wela kiʻekiʻe waena, ka ʻaila maka, ka ʻaila i loaʻa ka sulfur a me nā hui sulfur organik, kekahi mau ʻaila hoʻoili wela, ka refrigerant hou R134a a me ke kaiapuni ozone. |
| FKM | ʻO ka mahana lawelawe he - 15 ~ 200 ℃. He kūpono ia no ka wai wai, e like me ka waikawa sulfuric i hoʻohuihui ʻia, ka soda caustic, ka ʻaila hoʻoili wela, ka ʻaila wahie waiʻona, ka ʻaila wahie waikawa, ka mahu wela kiʻekiʻe, ka wai chlorine, ka phosphate, a pēlā aku. |
Ka manawa hoʻouna: Sep-16-2021