3-1/8" 5M x 3" Fig 1502 Female Thread Flange Adapter – Oil & Gas Flowline Fitting

The High-Pressure Flange Adapter, 3-1/8" 5M x 3" Fig 1502 Female Thread, is engineered to provide a robust, leak-free crossover connection between standard API 6A flanged wellhead equipment and high-capacity 3-inch hammer union flowlines. Designed for demanding upstream oilfield operations, this size-adapting crossover allows operators to safely transition from a 3-1/8" 5,000 PSI (5M) flanged connection to a larger 3" Figure 1502 female union interface.

Built from premium high-integrity forged alloy steel, this crossover adapter easily withstands the abrasive field environments typical of high-volume production, well testing, and severe flow-back procedures. The flanged end meets stringent API 6A dimensional and material specifications for a 5M rating, while the precision-machined 3-inch 1502 female threaded end ensures optimal thread engagement, heavy-duty vibration resistance, and superior seal integrity under massive fluid volume loads.

Serving as a critical pressure-control link, this 5M flange adapter optimizes layout flexibility, safely bridging pipe sizes across heavy-duty manifold setups and high-capacity flowline configurations without compromising structural safety. (Note: The maximum working pressure of the complete assembly is governed by the 5,000 PSI rating of the flanged end).

Features & Benefits

• Seamless System Integration: Safely bridges a 3-1/8" 5,000 PSI API flange with a standard 3" Figure 1502 Female Hammer Union end for versatile, high-volume piping transitions.

• 5,000 PSI Rating (5M): Engineered to safely contain high-pressure upstream environments, perfectly matching the 5,000 PSI rating of the flanged end.

• Forged Alloy Steel Construction: Built to handle abrasive drilling fluids, high-velocity flows, and severe oilfield handling without compromising structural integrity.

• Precision-Machined Threads: Ensures reliable makeup and smooth, secure engagement with corresponding 3-inch male union components.

• Heavy-Duty Reliability: Maximizes structural strength in high-vibration systems and accommodates increased flow rates required in heavy-duty operations.

• Service Ready: Manufactured to meet rigorous quality, dimensional, and material verification standards for standard oilfield service.

Specifications & Technical Details

Applications

This 5M flange to 3-inch 1502 female thread hammer union adapter is ideal for high-pressure upstream operations requiring flexible structural crossovers and reliable fluid transfer. Typical applications include integrating high-rate surface well testing flowlines, temporary high-volume flow-back piping, manifold crossovers, and safely interfacing 3-1/8" 5M flanged wellhead valving with standard 3-inch 1502 temporary iron configurations.

Quality Assurance

Each crossover adapter undergoes strict quality inspection protocols, including dimensional checks, precise thread gauging, and material traceability verification (MTRs) to ensure reliable and repeatable pressure containment in challenging operational field conditions.

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