A sump for compressed air system.

摘要

A sump (60) for use in filters and lubricators for a compressed air system comprises an inner metal bowl (61) which is attached to a body portion of the filter (3) or lubricator (4). A sleeve (62) of transparent plastics material (for example, polycarbonate) surrounds part of the metal bowl and is sealed at its edges. Ports (65,66) in the metal bowl connect an annular clearance volume (63) between the sleeve and the bowl to the interior of the bowl so that the level of liquid in the sump can be seen from any side of the bowl. The body portion (10) may be common to the filter and lubricator and to a regulation so that all the components are modular.