3" Fig 100 Butt Welded Pup Joint (M x F) – 20 FT | Sch 40 Low-Pressure Flowline Pipe

The 3" Figure 100 Butt Welded Pup Joint (20 FT) is a highly reliable, low-pressure flowline component engineered for the efficient transport of utility fluids, water, and drilling mud in general oilfield and industrial applications. 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 suction lines where extreme high-pressure ratings are not required. Designed around standard Schedule 40 (Sch 40) piping, this unit is rated for a secure 1,000 PSI Cold Working Pressure (1M CWP), providing a highly economical yet robust solution for everyday large-scale fluid routing.

Unlike high-pressure integral components, this pup joint features a Butt Welded construction. It is fabricated by taking premium, standard-weight Schedule 40 seamless carbon steel pipe and permanently joining it to forged steel Figure 100 hammer union ends using high-penetration butt welds. This manufacturing method offers an excellent balance of structural integrity, lighter weight, and cost-effectiveness, making it the industry standard for extensive low-pressure manifolding and fluid transfer over long distances.

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 straightforward utility use, this massive 20-foot welded pup joint delivers dependable performance and significantly reduces the number of connections needed for long-span 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.

• 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 pipe body, ensuring a strong, permanent, and leak-free bond.

• Schedule 40 Pipe: Built using standard-weight Sch 40 seamless steel pipe, providing an economical, lighter-weight solution that helps manage the overall weight of a 20-foot joint.

• 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 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. Typical applications include the construction of extensive temporary water supply lines across well pads, large-scale drilling mud circulation surface systems, long-reach suction lines for transfer pumps, wastewater routing, and general utility flowlines where minimizing union connections 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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