3" Fig 100 Butt Welded Pup Joint (M x F) – 10 FT | Sch XH Low-Pressure Flowline Pipe

The 3" Figure 100 Butt Welded Pup Joint (10 FT) is a highly durable, low-pressure flowline component engineered for the efficient transport of utility fluids, abrasive drilling mud, and water in rugged oilfield and industrial environments. Measuring 10 feet in length, this extended-reach straight pipe segment is ideal for constructing long-span surface flowlines, temporary water transfer systems, and heavy-duty suction lines. Upgraded with Schedule XH (Extra Heavy) piping, this unit offers vastly superior structural integrity and abrasion resistance compared to standard pipes, while safely maintaining the Figure 100 standard 1,000 PSI Cold Working Pressure (1M CWP) rating.

What differentiates this pup joint is its robust Butt Welded construction utilizing Schedule XH seamless carbon steel pipe. It is fabricated by taking thicker-walled Extra Heavy pipe and permanently joining it to forged steel Figure 100 hammer union ends using high-penetration butt welds. The increased wall thickness of the Sch XH pipe significantly extends the service life of the pup joint by resisting internal erosion from abrasive slurries and mud, while also offering enhanced resistance to external physical abuse commonly encountered on busy drill sites and rig floors.

Configured with industry-standard Figure 100 Male x Female (M x F) hammer union ends, this pup joint ensures rapid, tool-free rig-up using a standard lead hammer. The Figure 100 union relies on a precision-machined metal-to-metal seal to maintain pressure containment, omitting the elastomeric seals found in high-pressure models for simplicity and ease of maintenance. Designed for demanding utility use, this heavy-wall 10-foot welded pup joint delivers dependable, long-lasting performance for standard fluid routing operations.

Features & Benefits

• 1,000 PSI Pressure Rating: Engineered for standard low-pressure fluid systems with a highly reliable 1,000 PSI Cold Working Pressure (1M) rating.

• Schedule XH Pipe (Extra Heavy): Built using thick-walled Sch XH seamless steel pipe, providing enhanced durability, superior abrasion resistance, and a longer operational lifespan than standard Sch 40.

• Butt Welded Construction: Features full-penetration butt welds connecting the forged union ends to the thick-wall pipe body, ensuring a strong, permanent, and leak-free bond.

• 10-Foot Length: Provides long-reach capabilities for efficiently building out temporary flowlines, water supply lines, and mud transfer networks over significant distances.

• Metal-to-Metal Seal: Utilizes the classic Figure 100 precision-machined steel seating surfaces for reliable, maintenance-free pressure containment.

• Male x Female (M x F) Connections: Features standard Fig 100 hammer union ends for fast, highly secure integration into existing low-pressure iron networks.

Specifications & Technical Details

Applications

This upgraded 3" Figure 100 Butt Welded Pup Joint (10 FT) is a versatile, heavy-duty asset for operations requiring dependable low-pressure fluid routing with added durability. Typical applications include the construction of temporary water supply lines for well pads, abrasive drilling mud circulation surface systems, heavy-duty suction lines for transfer pumps, wastewater routing, and general utility flowlines where extended component life and a secure 1,000 PSI connection are required.

Quality Assurance

Each butt welded pup joint undergoes strict quality control protocols to ensure operational safety. This includes hydrostatic pressure testing to verify the integrity of the pipe and seals, complete dimensional verification, and rigorous non-destructive examination (NDE) such as Magnetic Particle Inspection (MPI) or ultrasonic testing on the structural butt welds.

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