992

The 8" Watts 992 Reduced Pressure Zone (RPZ) was produced from 1993-1997. The body was constructed of fused epoxy coated ductile iron. Check assemblies uses a toggle linkage mechanism design. Check springs are contained when the cover is removed. Spring tension must be relieved to repair the checks. Seats are removable but a special seat removal tool is required. The relief valve assembly is constructed of bronze and threaded onto the body. An external sensing line is used. Very similar to the 990, the only difference being the 992 used oversized gate valves with a non-typical flange pattern.