S51TBE3 True Union Ball Valve in Light. The original Chemtrol True Union design allows the valve and operational components to be conveniently lifted from the piping system for repair or replacement. True-Bloc advances the True Union concept with the self-adjusting energizer O-ring. Th...- S51TBE3 True Union Ball Valve in Light.
S51TBV3 True Union Ball Valve in Light. The original Chemtrol True Union design allows the valve and operational components to be conveniently lifted from the piping system for repair or replacement. True-Bloc advances the True Union concept with the self-adjusting energizer O-ring. Th... - S51TBV3 True Union Ball Valve in Light.