Thread copper plating, material, necking down processing.

Casing Couplings OTTM Couplings, Trapezoidal Thread Couplings

Special Thread Couplings, Zinc Diffusion Couplings, Corrosion-Resistant Couplings, Eight-Thread Couplings, Ultra-Thin Couplings, Large Chamfer Couplings, Reverse Thread Couplings, Left-Hand Thread Couplings, Copper-Plated Couplings, Phosphated Couplings

Tianjin Grand Victory Petroleum Equipment Co,.ltd. Is an integrated enterprise for production processing, sales, technology research and development, and spot warehousing. Located in Jinghai District, Tianjin, China, it was founded in 2008.

For the internal thread processing of 2-7/8 NUE non-upset oil tube couplings, the dimensions are as follows: Coupling outer diameter 88.9 mm, minimum length 130.18 mm, bore diameter 74.63 mm, bore depth 7.94 mm, load-bearing face width 4.76 mm, threads per inch 10, pitch diameter at hand-tightening face 71.457 mm, coupling end to hand-tightening face length 11.33 mm, thread taper 1:16, thread height 1.412 mm. The tool selected is a carbide comb cutter with 10 threads per inch.

Product Name: Oil Tube Coupling API 5CT TUBING COUPLING

Oil Tube Coupling Standards: API SPEC 5CT, API SPEC 5B, ISO 119
With fast delivery and high quality, we help customers reduce costs and increase efficiency. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all sectors to visit and cooperate for mutual development.

1. Since 2008, we have 17 years of experience, a registered capital of 11.18 million RMB, an 8,000 m² workshop, and an annual foreign trade turnover of 20 million RMB.
2. We have import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates.
3. Our production workshop is equipped with several highprecision CNC lathes, thread rolling machines, hydraulic pressure machines, and complete inspection instruments.
4. Our products include J55, K55, N801/Q, L80, and P110 oil casings, couplings, short joints, and conversion joints.
5. We maintain a stock of high corrosionresistant oil casings, including 80S, 90S, 110S, and L801Cr/3Cr/13Cr, with an annual inventory of around 2,000 tons.
6. We provide processing services for special sealing threads, including direct connection types, trapezoidal shapes, doublestep, and variable pitch threading, producing tens of thousands of special couplings each year.