THREAD-O-RING™ Fittings are used with TDW STOPPLE® Plugging Machines as purge and equalization fittings. They can be installed during new construction and used for blowdown connections on either side of a block valve. They are also used to install Pig Passage Indicators and corrosion monitors.
THREAD-O-RING™ Fittings are available in 2" and 3" (50 and 80 mm) sizes. The 2" fitting has a maximum pressure of 3,600 (248 bar) psi, and the 3" (80mm) fitting has a maximum pressure of 1,500 psi (103 bar).