STOPPLE® Plus fittings are full-branch split tees designed for use with TDW plugging machines. The design has undergone extensive pressure and functional testing. STOPPLE Plus fittings are furnished with LOCK-O-RING® Plus flanges drilled and faced to match ASME Class 150, 300 or 600 flanges in sizes 4- through 20- inches.
STOPPLE Plus fittings are an alternative to conventional TDW STOPPLE fittings and are designed to ASME B31.4 and B31.8 requirements.
- There are no side openings in the flange, which eliminates leak paths.
- Interlock system provides positive indication LOCK-O-RING Plus plug leaves are fully expanded.
STOPPLE Plus fittings are manufactured with a controlled carbon equivalent of .45 or lower. Factory welding of TDW STOPPLE Plus fittings is 100 percent radiographically inspected. Fitting sleeves are an extruded or fabricated type design, manufactured from a pressure-vessel quality, normalized, killed carbon steel plate with a hardness of Rc22 or lower.
LOCK-O-RING Plus plugs are retained in the STOPPLE Plus fittings by means of retaining leaves, mounted on the plug, that are extended into a mating groove in the flange of the fitting.