Patent ID: 9700818
Date: 2017-07-11
CPC Classifications: B01D

Claim:
1. A filter element for replaceable use with a filter head comprising: a ring of filter media defining an internal cavity; a main flow passage and a drain flow passage through the internal cavity, each flow passage having an inlet on a clean side of the filter media directly fluidly communicating with the internal cavity, wherein the drain flow passage and main flow passage are integrally attached to the ring of filter media such that the ring of filter media and the drain flow passage and the main flow passage are removed together from the filter head; a first seal portion defining an outlet from the internal cavity, and a second seal portion separating the main flow passage from the drain flow passage; wherein the drain flow passage includes a restriction sized large enough to allow air flow and small enough to prevent substantial liquid flow, wherein the restriction is removed from the filter head when the ring of filter media is removed from the filter head; further comprising a check valve arrangement in line with the drain flow passage limiting fluid flow through the drain flow passage to a single direction, wherein the check valve arrangement is removed from the filter head when the ring of filter media is removed from the filter head.