3" Fig 1502 Threaded Hammer Union – Oil & Gas Flowline Fitting

The 3" Figure 1502 Threaded Hammer Union is an extreme-duty, ultra-high-pressure flow control component expertly engineered for secure, rapid, high-volume fluid routing in the most demanding upstream oil and gas operations. Rated for a massive 15,000 PSI Cold Working Pressure (15M CWP), this highly resilient, large-bore hammer union provides a dependable, fast-makeup connection for 3-inch piping systems. It is an essential, industry-standard asset for heavy-duty fracturing operations, high-volume cementing, acidizing, high-pressure well testing, and severe choke-and-kill line configurations.

Manufactured from premium high-strength forged alloy steel, the large 3-inch Figure 1502 union is explicitly built to endure extreme internal stresses, severe mechanical impacts, and the highly abrasive environments typical of ultra-high-pressure, high-volume pumping service. It 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 immense fluid loads and significantly extending the lifespan of the union assembly.

Equipped with precision-cut female threaded ends (NPT / Line Pipe), this 3-inch union allows for secure, vibration-resistant integration onto standard large-bore threaded pipework. The robust, heavy-duty wing nut design enables fast, tool-free assembly and dismantling in the field, critically reducing rig-up times while maximizing structural safety across 15M high-pressure flowline networks.

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.

• High Flow Capacity: The large 3-inch nominal size accommodates massive fluid volumes required for severe-service fracturing and pumping applications.

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

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

• Precision NPT Threads: Features standard threaded ends for quick, vibration-resistant makeup onto standard 3-inch threaded line pipe.

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

• Rapid Makeup Design: The heavy-duty wing nut allows for quick, ultra-secure connections and disconnections in the field, optimizing critical operational efficiency.

Specifications & Technical Details

Applications

This ultra-high-pressure 3" Figure 1502 threaded hammer union is essential for upstream operations requiring extremely reliable fluid containment alongside massive flow capacities under extreme stress. Typical applications include heavy-duty frac iron setups, well servicing lines, high-pressure cementing networks, surface well testing configurations, high-capacity manifold assemblies, and general oilfield fluid routing where fast rig-up and 15,000 PSI pressure containment are strictly required.

Quality Assurance

Each hammer union assembly undergoes rigorous quality control protocols, including severe hydrostatic testing, precision dimensional verification, exact thread gauging, and full material traceability (MTRs), ensuring complete structural integrity, safe pressure containment, and reliable compatibility with industry-standard Figure 1502 components.

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