Developed through more than 95 years of experience in the pipeline industry, high-pressure fittings from TDW are furnished with patented features that can help operators safely and efficiently repair and maintain high-pressure lines without shutdown or interruption of service.
All fittings are engineered to work seamlessly with TDW tapping and isolation equipment, including the STOPPLE® plugging machines and STOPPLE Train isolation systems, SHORTSTOPP® plugging machines, and TDW tapping machines.
STOPPLE Plus fittings , for example, have no side openings in the flange, which reduces potential leak paths and significantly lowers risk when conducting line isolations. In addition, offerings like THREAD-O-RING® fittings provide value for purge and equalization operations, as they can easily accept corrosion test coupons, gauge adapters, instrument probes, and thermometer wells.
Whether for an isolation, bypass, purge and equalization, or blowdown, TDW can provide a high-pressure fitting that helps get the job done quickly, efficiently, and without incident.
Best used for: isolation operations on high-pressure transmission lines.
- What is the difference between the STOPPLE and the STOPPLE Plus fitting? STOPPLE Plus fittings are an alternative to the STOPPLE fittings. STOPPLE Plus fittings have no side openings on the flange, which helps eliminate potential leakage through the completion plug.
- What ASME standards do STOPPLE and STOPPLE Plus fittings meet? Both the STOPPLE and STOPPLE Plus fittings are designed to meet ASME B31.3, B31.4, and B31.8 requirements.
Need help selecting the right fitting for your project? Click to enlarge the chart below.