TP-QR|13 - 3/8" ~ 20"

Structure Features

3T.P.I coarse thread enable fast make-up without cross-thread

Torque shoulder provides accurate power-tight make-up

Internal flush



Threaded Connection

Coarse thread form with a taper of 1:12 and a lead of 3.T.P.I. enables high connection strength, fast and easy running without cross-threading.

Torque Shoulder

The torque shoulder provides accurate power tight make-up, which also enables connection to withstand higher compression load.

Internal Profile

The streamlined internal profile minimizes turbulence and energy loss due to high-velocity gas flows.

Coupling Design

Because the coupling covers the vanishing threads therefore the connection tensile efficiency is maximized.

Low Stress Design

The low stress design makes the connections reliable in corrosive condition.