The SHORTSTOPP® 300D Spherical 3-WAY™ Tee, 4” (100mm) and larger, is furnished with a flange, drilled, faced and pressure rated to match ASME Class 300 flanges. It is used with TDW hot tapping and/or plugging machines to tap and/or temporarily plug the line, without shutdown, while installing a permanent bypass. The bottom half of the fitting can be rotated for a side or a bottom outlet. The flange is machined to accept 300D Completion Plugs. Quality control measures include inspection to ensure a proper fit on the pipeline, flange alignment verification, and radiographic weld inspection to API Standard 1104.
All fittings are stamped with a code number for material identification. Material certificates are available. The 4” (100mm) and larger fitting is complete with blind flange, studs, nuts, gasket, O-ring, and completion plug. The 2” and 3” (50mm and 80mm) sizes are furnished with a threaded cap, completion plug, and O-ring. The bottom half of the tee can be turned for either a side or bottom outlet. The tee can also be installed horizontally.
With plugging equipment removed, the maximum pressure is 740 psig (49 bar) at 100°F (38°C). The maximum operating temperature is 180°F (82°C) at 675 psig (45 bar).
TDW also provides spherical 3-WAY Tees with completion plugs with guide bars. These guide bars block the tapped hole without interrupting flow through the side outlet, keeping the main line piggable.