We Super Steel Manufacturing Co.,Ltd(SMC) are amongst the top manufacturers and suppliers for the seamless steel pipe, welded steel pipe, OCTG products and fittings from China. We have been manufacturing and supplying these products to the industry since 1993, and received repeat orders and appreciation from our valued customers.
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Pup joint manufacturing involves producing short lengths of pipe—called pup joints—used to adjust the length of tubing or casing strings in oil and gas drilling, production, and other high-pressure piping systems. Here's a brief introduction to pup joint manufacturing.
Super Steel Manufacturing Co.,Ltd is professional pup joints manufacturer, for more details, please contact:sales@super-steels.com
Brief Introduction to Pup Joint Manufacturing
Pup joints are typically made from the same material and grade as the main pipe (e.g., API 5CT or API 5L steel). The manufacturing process includes:
Material Cutting:
Full-length pipes are cut into short sections (generally 2 to 12 feet) using high-precision saws or CNC equipment.
End Finishing:
Ends are threaded (e.g., API or premium threads) or beveled depending on the connection type.
Thread protectors may be applied to prevent damage during handling.
Heat Treatment (if needed):
Normalizing, quenching, or tempering processes may be applied to meet mechanical property requirements.
Surface Treatment:
Pup joints are cleaned, coated (e.g., phosphating, painting, or zinc plating), and marked for corrosion resistance and traceability.
Inspection and Testing:
Dimensional checks, hydrostatic testing, and thread gauging ensure compliance with industry standards.
Applications of Pup Joint
Length adjustment in drilling and production strings
Spacing out casing/tubing
Pressure testing and temporary connections in flowlines or manifolds
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