STOPPLE® Fittings

Stopple Fittings

High-pressure STOPPLE® fittings are designed for use with TDW STOPPLE plugging machines. The fittings come in a full-branch split tee configuration and are certified to a wide range of refinery, chemical, and oil and gas pipeline standards, including ASME B31.3, B31.4, and B31.8, as well as CSA Z662, NACE MR0103, and CAT II at -45°C (-50°F).

STOPPLE fitting sleeves feature an extruded design that incorporates a milled groove, which allows for the placement of back-up strips. Fittings come in sizes 2 inches through 24 inches, all of which are furnished with LOCK-O-RING® flanges to accept LOCK-O-RING completion plugs and permit removal of tapping valves after work has completed.

Larger size fittings are available upon request.

Key features:

  • Fittings are constructed with a controlled carbon equivalent to improve welding in harsh environmental conditions.
  • All pressure containing fitting welds undergo 100 percent X-ray inspection per ASME and CSA requirements.
  • Fitting sleeves are manufactured from pressure vessel quality, normalized, killed carbon steel plate.
  • Different O-ring options are available upon request.

*Attention valued customers, TDW is currently in the process of updating designs of various product lines and families. Product part numbers may change. Please contact your local TDW representative to verify. Thank you for your cooperation.

Want more information? Click below for detailed product bulletins:*

STOPPLE® fittings

STOPPLE® Fittings ASME B31.3

STOPPLE® Fittings ASME B31.4

STOPPLE® Fittings ASME B31.8