3" Fig 100 Butt Welded Pup Joint (M x F) – 20 FT | Sch XH Low-Pressure Flowline Pipe

The 3" Figure 100 Butt Welded Pup Joint (20 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 a massive 20 feet in length, this extended-reach straight pipe segment is the standard for constructing long-distance surface flowlines, extensive 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 this 20-foot joint by resisting internal erosion from abrasive slurries and mud over long runs, while also offering enhanced resistance to external physical abuse commonly encountered across busy drill sites and large well pads.

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, large-scale utility use, this heavy-wall 20-foot welded pup joint delivers dependable, long-lasting performance and significantly reduces the number of connections needed for extensive 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.

• Massive 20-Foot Length: Provides exceptional long-reach capabilities for efficiently building out temporary flowlines and mud transfer networks over significant distances, severely reducing the total number of connections required.

• 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.

• 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 (20 FT) is a versatile, heavy-duty asset for operations requiring dependable long-distance low-pressure fluid routing with added durability. Typical applications include the construction of extensive temporary water supply lines across well pads, large-scale abrasive drilling mud circulation surface systems, heavy-duty long-reach suction lines for transfer pumps, wastewater routing, and general utility flowlines where minimizing union connections and maximizing component lifespan over a 1,000 PSI rated line is beneficial.

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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