A liquid drawing head (16) provided with a sealing ring (14) is bonded with a pseudo T-joint (7) to form the main body of the self-locking liquid drawing head (02).
An automatic air discharge valve (03) is mounted on an upper T-joint (108).
An upper port of the upper T-joint (108) functions as a valve ball seat (5) of the automatic air discharge valve (03).
A high strength T-joint (60) for an inflatable tubular member (26) is formed by forming a butt joint between the end of a first tubular member (46) and the side wall of a second tubular member (26).
The system comprises a feeder (4), a tee joint (6), a lifting pipeline (8), a gas diverter (9), a reactor feeding pipeline (11), a gas power supply and at least two burnup detection assemblies.
The large diameter T joint comprises a first friction plate, a second friction plate, a lubricant and a means for urging the friction plates together.
A joint such as a so-called Tee joint may be provided between the main pipe and a service pipe.
The connection members may be made of a monolithic block of polymer in the form of a sleeve, a T joint, a branching or a crosspiece.
The horizontal boom may be attached to the top of the bent vertical pole by a large diameter T joint.