Product Introduction of Couplings byTianjin Grand Victory Petroleum Equipment Co.,Ltd

The couplings produced byTianjin Grand Victory Petroleum Equipment Co.,Ltd are key components for connecting oil tubes and casings. The sealing performance and reliability of couplings directly affect the safety and efficiency of downhole operations. Our coupling products are highly regarded in the domestic and international markets for their high quality, diverse specifications, and rapid delivery capabilities.

Full Range of Specifications 

We offer a wide range of coupling sizes, including:

•  23/8 inches (2.875 inches outer diameter)
•  27/8 inches (3.5 inches outer diameter)
•  31/2 inches (4.0 inches outer diameter)
•  41/2 inches (4.5 inches outer diameter)
•  65/8 inches (7.0 inches outer diameter)
•  85/8 inches (8.625 inches outer diameter)
•  103/4 inches (10.75 inches outer diameter)
•  133/8 inches (13.5 inches outer diameter)
•  16 inches (16.0 inches outer diameter)
•  20 inches (20.0 inches outer diameter)

Diverse Steel Grades 

We provide a variety of steel grades ranging from normal to high strength, including J55, K55, N80, L80, P110, L803CR, 9CR, 13CR, etc., to meet different geological conditions and extraction requirements.

HighQuality Standards 

All couplings are manufactured strictly in accordance with API standards and have passed the ISO 9001 quality management system certification. The company uses advanced production equipment and a strict quality control system to ensure the thread accuracy and dimensional tolerances of the couplings meet international standards.

Customization Services 

We can process special specification couplings according to customer requirements, or process special threads and connection forms on the couplings to meet customers' special needs.

Application Scenarios 

Couplings are widely used in:

•  Onshore and offshore petroleum extraction
•  Tubular connections in deep wells and highpressure wells
•  Oil and gas extraction in high hydrogen sulfide environments
•  Tubular connections during oilfield development and production

Product Advantages

• High Strength and Toughness: Ensures reliability in highpressure and complex environments.
• Excellent Sealing Performance: Advanced thread design and machining technology.
• Corrosion Resistance: Suitable for corrosive environments such as high hydrogen sulfide.
• Customization Services: Meets customers' special needs.