2" Fig 602 Butt Weld (Sch XXH) Hammer Union – Oil & Gas Flowline Fitting

The 2" Figure 602 Butt Weld Schedule XXH Hammer Union is a heavy-duty, highly resilient flow control assembly engineered for permanent, maximum-security fluid routing in medium-to-high pressure upstream and midstream operations. Rated for a 6,000 PSI Cold Working Pressure (CWP), this robust hammer union provides a dependable, fast-makeup connection between welded 2-inch piping systems. Featuring precision-machined Butt Weld ends designed to seamlessly integrate with Schedule XXH (Double Extra Heavy) pipe, this union is specifically built for heavy-duty applications requiring maximum wall thickness to combat internal erosion, continuous vibration, and abrasive fluid transfer.

Unlike threaded unions, this Figure 602 assembly allows for a permanent, full-penetration welded integration into medium-pressure pipework. This eliminates the risk of thread-related leaks or loosening caused by the severe vibration and mechanical loads typical of truck-mounted pumping operations and heavy mud systems. The Double Extra Heavy (XXH) profile provides an extended operational lifespan by offering superior erosion allowance, making it an excellent choice for permanent cementing manifolds and abrasive slurry lines.

Manufactured from premium high-strength forged steel, the union features the hallmark Figure 602 replaceable lip-type elastomeric seal ring embedded securely into the female sub. This primary seal effectively protects the secondary metal-to-metal seating surface from abrasive fluids and corrosive agents, ensuring bubble-tight pressure containment under demanding conditions. The robust, heavy-duty wing nut design enables fast, tool-free assembly and dismantling of welded spools in the field, optimizing operational efficiency without sacrificing structural safety.

Features & Benefits

• 6,000 PSI Pressure Rating: Engineered to safely manage continuous fluid transfer in medium-to-high pressure systems with a reliable 6,000 PSI Cold Working Pressure rating.

• Butt Weld Connection (Sch XXH): Precision-beveled ends designed for Schedule XXH (Double Extra Heavy) pipe provide maximum wall thickness, offering superior resistance to abrasive erosion and continuous vibration.

• Replaceable Lip-Type Seal: Features a resilient elastomeric seal ring that provides a dependable primary barrier, minimizing turbulence and protecting metal seating surfaces from abrasive damage.

• Dual Sealing Mechanism: Combines the primary elastomer seal with a precision-machined secondary metal-to-metal seat for ultimate, leak-free pressure containment.

• Forged Steel Construction: Built from heavy-duty forged steel to deliver exceptional durability and resistance against mechanical impacts and rough field handling.

• Rapid Spool Makeup: The robust wing nut allows for quick, ultra-secure connections and disconnections between permanent welded pipe spools in the field.

Specifications & Technical Details

Applications

This heavy-duty 2" Figure 602 Schedule XXH butt weld hammer union is essential for flowline networks requiring extreme structural rigidity, erosion resistance, and reliable leak-free containment. Typical applications include the fabrication of permanent truck-mounted pumping manifolds, high-capacity cementing lines, severe-service mud and slurry transfer networks, and general oilfield fluid routing where Double Extra Heavy welded connections are required for maximum safety and longevity under 6,000 PSI pressure.

Quality Assurance

Each hammer union assembly undergoes rigorous quality control protocols, including precision dimensional verification of the weld bevels, strict tolerance checks on the seal grooves, and full material traceability (MTRs), ensuring complete structural integrity, exceptional erosion allowance, and safe pressure containment.

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