Three=way filter membrane sensor valve - actuates filter control valve in response to change of fluid pressure caused by filter condition

摘要

The parent patent describes a control and safety valve, for use typically, for instance,in filter circuits for water, oil or air. In this addn. a three-way membrane regulating sensor valve is used in conjunction with this control and safety valve. The sensor valve is biased by a membrane into a position, from which it switches under the action of pressure in the filter circuit; the switching pressure can be finely adjusted by means of a spring and clamping screw.