Abstract: A rotary valve with a latching/locking operating handle assembly includes a valve body carrying a rotary valve element having an outwardly extending valve stem. A main handle body is joined to the stem and provides guide grooves for cooperating first and second operating members connected by a cam assembly such that selective horizontal movement of the first operating member produces vertical movement of the second operating member. A latch pin carried by the second member is thereby caused to move between engaged and disengaged positions with the valve body.

Abstract: An end member of a valve body is provided with first, second, and third passages to define an integral tee fitting. Two of the passages are generally aligned for receipt in the flow path of a main processing line. The third passage extends generally perpendicular to the first and second passages and communicates with the valve chamber. The first and second passages also include threaded regions to facilitate interconnection with the main processing line.