Pump valve for liquid separator.

摘要

A separating device (10) for removing water from a fuel oil/water mixture includes a cartridge (14) including a filtering media (82) and a sump. The cartridge (14) is installed on a mounting head (12), which includes a pump (42) and a pair of check valves (30, 40) to permit fluid to be drained from the sump by operation of the pump (42). A bypass passage (54) permits fluid to bypass the check valves (30, 40) during normal operation of the device (10), but a plunger (58) closes the bypass passage (54) to permit operation of the pump (42) to move fluid through the device (10).