Flanged Ball Valves. April 26, 2007. The 4000 Series (150 or 300 ANSI) of flanged ball valves targets such applications as refinery, petrochemical, and chemical-process equipment. Staff.

The 8100/8111 are circulator-flange ball valves for hydronic heating systems. These two-piece, brass-body, full-port valves are designed with free-floating flanges for alignment with circulator pump ...