API 5CT Standard Coupling & Crossover in J55 EUE Thread

We offer a size range of 2-3/8", 2-7/8", 3-1/2", 4" and 4-1/2" in grades J55, K55, N80, P110. All of our couplings meet API specification 5CT/5B.

Couplings are short lengths of pipe used to connect 2 joints of pipe or casing. They come with a color code painted on the outside surface to indicate their grade.

API EUE pipe coupling

Made of good seamless steel according to API 5CT/5B design. EUE petroleum pipe fittings cover OD from 77.80mm to 141.30mm, i.e. larger than the OD of non-upset threaded end products. API External-Upset End (EUE) pipe connection is widely used as it is a good, serviceable connection in most wells. EUE fittings have a design joint strength greater than the pipe body in terms of tensile and compressive strength and are therefore considered to be 100% joint-effective connections.

Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars.

We have competitive price of our main products like: subsurface sucker rod pump, pumping unit, cementing tools, wellhead (Christmas Tree), etc, with certificates of API11AX,API11E,API6A,API5CT,ISO14001 and ISO9001 approved. We have 9 factories, 580 employees, including more than 160 technicians and engineers.

With 20 years manufacturing experience and more than 10 years exporting experience, our main clients include all oilfields in China such as: Zhongyuan, Daqing, Shengli, Changqing, Nanyang, Karamay, etc and we have exported to more than 30 countries abroad such as: Indonesia, Thailand, Myanmar, Russia, Kazakhstan, Venezuela, Peru, Columbia, Canada, America, Sudan, Egypt, Iran, Australia etc.

We would like to cooperate with friends from all over the world with high quality products and service to achieve mutual development .