| 摘要 |
<p>Filter apparatus comprising a fluid receptacle having an interior and defining a fluid entry to its interior, a fluid exit from its interior and a filter maintenance opening; a tubular filter removably disposed within the fluid receptacle and defining a filter interior and a filter exterior, the fluid entry communicating with the filter interior, the fluid exit communicating with the filter exterior, the filter maintenance opening being configured and positioned to allow the filter to be passed in and out thereof, an apertured tube defining an internal volume in fluid communication with the fluid receptacle and disposed interiorly of the filter; a valve disposed interiorly of the apertured tube and configured to selectably interrupt flow of fluid from the fluid entry to the fluid exit; and a removable cover covering the filter maintenance opening so as to seal the fluid receptacle during normal operation of the filter assembly.</p> |
