3" Fig 1502 Female (Threaded) x 3" LP Swage | High-Pressure Crossover Adapter

The 3" Fig 1502 Female (Threaded) x 3" Line Pipe (LP) Swage is a premium, heavy-duty crossover adapter engineered to provide a safe, leak-free transition from large-capacity 3-inch high-pressure hammer union flowlines directly to large-bore 3-inch threaded piping systems. This specialized fitting features a 3-inch Figure 1502 Female threaded connection (designed to safely receive a standard 3" 1502 male sub and wing nut) on one side, and a standard 3-inch API Line Pipe (LP) threaded connection on the opposite end.

Manufactured from a solid block of high-strength, heat-treated forged alloy steel, this integral swage is built to withstand the extreme mechanical stresses, massive fluid volumes, and intense vibration inherent in 15,000 PSI manifold systems. By providing a direct, full-bore connection between a 3-inch 15,000 PSI flowline and 3-inch threaded components—such as large-capacity valves, pressure vessels, or rigid piping spools—it eliminates the need for multiple stacked adapters, reducing potential leak paths and improving overall rig-up safety.

By utilizing a seamless, integral (one-piece) forged design rather than a fabricated or welded assembly, this swage completely eliminates structural weak points. This ensures superior resistance to severe pressure surges and provides a reliable, blowout-proof connection during demanding cementing, well testing, and frac flowback operations.

Features & Benefits

• Integral Forged Construction: Machined from a single block of premium alloy steel, eliminating weld seams and providing maximum structural integrity under extreme pressure surges and vibrations.

• Female Threaded Connection: Features a precision-machined 3" 1502 female thread, ready to securely accept any standard 3" 1502 male wing nut assembly for rapid field integration.

• Full-Bore Line Pipe Transition: Safely adapts a 3" 1502 hammer union connection to a standard 3" API Line Pipe connection without restricting flow, ideal for routing high-volume fluids into secondary manifold lines or processing equipment.

• High-Pressure Durability: The 3" Fig 1502 female end is engineered for standard 15,000 PSI Cold Working Pressure (CWP) environments. (Note: System pressure must be strictly regulated to the maximum rating of the 3" LP threaded connection).

• Precision Machined Threads: The 3" API Line Pipe threads are cut to exacting tolerances to ensure fast makeup, galling resistance, and a reliable leak-proof seal.

Specifications & Technical Details

Applications

This 3" Female x 3" LP Crossover Swage is a critical utility fitting for high-volume, high-pressure oilfield manifolds. It is extensively used in heavy cementing and circulating manifolds, high-rate well testing packages, frac iron assemblies, and production facilities for safely integrating large 3-inch threaded valves, secondary piping runs, and temporary flowlines into the primary 3-inch 1502 system.

Quality Assurance

Every crossover swage undergoes rigorous quality control inspections. The alloy steel forgings are ultrasonically tested for internal flaws to guarantee structural density. Additionally, all LP threads are strictly verified using calibrated ring and plug gauges to ensure a perfect, high-pressure seal out in the field. The 1502 female threads are verified to exact tolerances to ensure seamless integration with male components.

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