ANSI 600 Tees & Fittings ANSI 600 branch tees are designed for operations on active steel pipelines, including:pressure tapping of pipes (hot-tap operation),gas flow stoppage (stopping and ballooning operations).Operating parameters:maximum operating pressure (MOP): 100 bar (ANSI 600 class),temperature range: -30°C to +50°C. See also: Electrofusion Welders TDWG Tapping Tees Simply 50 device PE Pipe Clamps Gas Connection Defroster