Threaded flange

A threaded flange engages a threaded pipe end through an internal thread, while its flange face and bolting form a detachable joint to mating equipment or another flange. This connection principle distinguishes it from socket-weld and weld-neck styles. Selection must match the actual line and mating connection, with thread form, size, material, class, facing and drilling specified as one compatible set. None of those details, or compliance with a particular standard, can be inferred from the general product title alone.