Patent ID: 8356625

Claim:
A valve comprising: a housing formed with a central chamber centered on and extending along a main axis, an inlet passage and an outlet passage having mouths in the chamber spaced angularly from and confronting each other, and a secondary passage offset from the inlet and outlet passages and centered on an axis offset from a center of one of the mouths by more than 90°; a valve pin fitted in the chamber formed with a secantally throughgoing flow passage centered on a flow-passage axis generally parallel to but offset from a diameter of the pin, the valve pin being angularly shiftable between a use position with the flow passage aligned between the mouths of the inlet and outlet passages for flow of liquid between the inlet and outlet passages through the flow position and another position with the flow passage aligned with the secondary passage and not aligned with the inlet and outlet passages and the pin blocking flow into and out of the inlet and outlet passages through the respective mouths; and a filter in the flow passage, the secondary passage being sufficiently large that in the other position the filter can be removed from the flow passage through the secondary passage, the housing being formed on the opposite side from the secondary passage with a bore provided as an opening in the housing for a tool by means of which the filter is removable.