Pipe Coupling

Fastube pipe coupling is used forconnection of threaded oil casing or tubing. Manufactured by seamless process, the pipe coupling is mainly used in underground engineering applications which require running and pulling casing ortubing. In order to suit each customer’s requirements, we at Fastube offer several types of pipe coupling, including tubing coupling with bevel, tubing and casingcoupling with clearance, tubing and casing coupling with special end finishing,and more.

As an experienced coupling manufacturer, we at Fastube know that the axiality and thread quality ofcoupling may greatly affect the service life of downholecasing and tubing. Therefore, we make great efforts to improve coupling processingtechnique and select standard datum plane duringcoupling processing, which helps us solve the axiality problem. Additionally,our focus on improving phosphorizing process helps us achieve uniform,dense and anti-rust phosphorized film, whichsignificantly improves the thread surface quality and thus contributes to extendingthe service life of tubing, casing and coupling.

Casing Coupling
Steel grade: J55, K55, N801, N80Q, L80-1, L80 9Cr, L80 13Cr, C90, T95, P110, Q125 etc.
Size: 4-1/2″, 5″, 5-1/2″, 6-5/8″, 7″, 7-5/8″, 8-5/8″, 9-5/8″, 10-3/4″, 11-3/4″, 13-3/8″, 16″, 18-5/8″, 20″ etc.
Thread type: LC, STC, BC, etc.
Commonly used casing coupling includes 5-1/2, 7, 9-5/8, and 13-3/8 types.

Tubing Coupling
1. Non-upset tubing coupling
Size: 1.050″, 1.315″, 1.660″, 1.900″, 2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2″ etc.
Threads per inch: 8, 10
Commonly used tubing coupling includes 2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2″types.
2. External upset tubing coupling
Size: 1.050″, 1.315″, 1.660″, 1.900″, 2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2 etc.
Threads per inch: 8, 10
Commonly used tubing coupling includes 2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2″types.

Material

25Mn2,30Mn2,37Mn5,34Mn6,25Mn2V,33Mn2V,(25～30)CrMo etc.

Fastubeis a Chinapipe coupling manufacturer and supplier. We offer pipe coupling, and exhaustpipe, electric resistance welded tubing, Our highquality products are offered at competitive prices. Fastube is located in China, and the full chain of manufacturingseamless alloy steel structural pipe, electric resistance welded pipe, can becompleted in China,even in one city. Lower manufacturing cost saves your purchasing cost. The moredetails of each product are shown on the page with description.