TP-CQ is one kind of premium connection belong to TPCO series.Its features are shown in many aspects. Next, I will introduce their characteristics in the below.

The description of one kind of the premium connection named TP-CQ(EX)

First, I will introduce is the threaded connection of TPCO premium connection. Improved butttress thread form with a taper of 1:16 and a lead of 5TPI,which can be measured by API gauge.Clearance at the thread crests minimizes thread galling and avoids the trapping of compound inside the threads.Second,I will introduce is the metal-to-metal seal.A 30° angle seal provides reliable seal integrity after repeated make-ups and break-outs.Optimized thread geometry minimizes the risk of galling,even when thread lubricants are poorly applied.Third is the reverse angle torque shoulder.The reverse angle torque shoulder provides a positive torque stop,which allows for accurate power tight make-up and minimizes hoop stresses in the connection.The wedge effect caused by the reverse angle gives the connection a superior structural strength.The shoulder design is optimized in order to resist adverse condition such as combine compression and external pressure or combined bending,compression,and torque.Last but not least,I will introduce is the internal profile.The streamlined internal profile minimizes turbulence and energy loss when high-velocity gas flows.

Now, what is said above are the features about the API premium connection of the TP-CQ. This kind of the premium thread connection has many advantages.You can choose this kind of premium connection for your own.