Super-Grade valve rebuild

once the valve is disassembled and cleaned new seats are installed and valve re-assembled as follows

seats are pressed into recesses in valve body and striker guide

seat is placed on end of this tool and pressed in as shown below

new seats installed

tool used to seat ball valves as shown below

assembly is placed upright on vise anvil and tool is hit with hammer to seat ball

install valve components and use teflon tape to seal threads
firing pin shown at left

screw striker guide into valve body tightly and install quad seal or proper size o-ring

valve installed in rifle, charged with 6 pumps, removed and submerged in water to check for leaks