2" Fig 1502 Butt Weld (Sch XXH) Hammer Union – Oil & Gas Flowline Fitting

The 2" Figure 1502 Butt Weld Schedule XXH Hammer Union is an extreme-duty, ultra-high-pressure flow control assembly engineered for permanent, maximum-security fluid routing in the most severe upstream oil and gas operations. Rated for an immense 15,000 PSI Cold Working Pressure (15M CWP), this highly resilient hammer union provides a dependable, fast-makeup connection between welded 2-inch piping systems. Featuring precision-machined Butt Weld ends designed for Schedule XXH (Double Extra Heavy) pipe, this union is specifically built for applications requiring maximum wall thickness to combat severe internal erosion, extreme pressure pulsations, and highly abrasive fracturing fluids.

Unlike threaded unions, this Figure 1502 assembly allows for a permanent, full-penetration welded integration into high-pressure pipework. This eliminates the risk of thread-related leaks or backing-off caused by the severe vibration and mechanical loads typical of massive pumping operations. The Double Extra Heavy (XXH) profile provides an extended operational lifespan by offering a superior erosion allowance, making it the premier choice for heavy-duty frac iron and permanent cementing manifolds.

Manufactured from premium high-strength forged alloy steel, the union features a specialized, replaceable lip-type elastomeric seal ring that fits securely into the female sub. This primary seal effectively protects the secondary metal-to-metal seating surface from abrasive frac sand and corrosive agents, ensuring absolute bubble-tight pressure containment under massive loads. The robust, heavy-duty wing nut design enables fast, tool-free assembly and dismantling of welded spools in the field, optimizing critical operational efficiency.

Features & Benefits

• 15,000 PSI Pressure Rating (15M): Engineered to safely manage extreme ultra-high-pressure fluid systems with a 15,000 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 severe 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 aggressive fluids.

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

• Forged Alloy Steel Construction: Built from heavy-duty forged alloy steel to deliver exceptional durability and resistance against severe mechanical impacts and high-velocity flows.

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

Specifications & Technical Details

Applications

This ultra-high-pressure 2" Figure 1502 Schedule XXH butt weld hammer union is essential for upstream operations requiring maximum structural rigidity and extreme erosion resistance. Typical applications include the fabrication of heavy-duty permanent frac iron, highly abrasive pump discharge lines, truck-mounted cementing manifolds, high-pressure acidizing networks, and general oilfield fluid routing where Double Extra Heavy welded connections are required for maximum safety and longevity under 15,000 PSI pressure.

Quality Assurance

Each hammer union assembly undergoes rigorous quality control protocols, including precision dimensional verification of the weld bevels, full material traceability (MTRs), and compliance with strict industry manufacturing standards to ensure complete structural integrity, exceptional erosion allowance, and safe pressure containment.

Request a Quote

📞 +1 405 666 5011

📧 seo@blazess.com