3" Fig 602 Threaded Hammer Union – Oil & Gas Flowline Fitting

The 3" Figure 602 Threaded Hammer Union is a heavy-duty, highly versatile large-bore flow control component engineered for dependable, high-volume fluid routing in medium-to-high pressure upstream and midstream operations. Rated for a 6,000 PSI Cold Working Pressure (CWP), this resilient hammer union provides a highly secure, fast-makeup connection for standard 3-inch piping systems, making it an ideal choice for heavy-duty well servicing operations, massive mud lines, high-capacity cementing applications, truck-mounted pumping units, and large manifold configurations.

Manufactured from premium high-strength forged steel, the 3-inch Figure 602 union is built to withstand the rigorous mechanical demands, high vibrations, and continuous high-volume usage typical of field service. Its hallmark feature is the specialized, replaceable lip-type elastomeric seal ring embedded within the female sub. This primary elastomeric barrier effectively protects the secondary metal-to-metal seating surfaces from abrasive fluids and corrosive elements, ensuring bubble-tight pressure containment and significantly extending the operational lifespan of the union components even under massive flow rates.

Equipped with precision-cut female threaded ends (NPT / Line Pipe), this 3-inch union integrates seamlessly onto standard large-bore threaded pipework, creating a robust connection point that effectively resists severe pressure surges. The heavy-duty wing nut allows for rapid, tool-free assembly and dismantling in the field, optimizing rig-up times while maximizing structural safety across 6,000 PSI high-capacity fluid networks.

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 (CWP) rating.

• High Flow Capacity: The large 3-inch nominal size accommodates massive fluid volumes required for severe-service pumping and high-capacity transfer 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 severe 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, secure, and vibration-resistant makeup onto 3-inch threaded line pipe.

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

• Rapid Makeup Design: The robust wing nut enables quick, ultra-secure connections and disconnections in the field, drastically reducing operational downtime on large pipe setups.

Specifications & Technical Details

Applications

This large-bore 3" Figure 602 threaded hammer union is essential for medium-to-high pressure flowline networks requiring reliable, leak-free containment and massive flow capacities. Typical applications include heavy-duty well servicing lines, high-volume cementing and pump discharge operations, high-capacity mud mixing configurations, truck-mounted pumping manifolds, and general oilfield fluid routing where 6,000 PSI pressure containment and fast rig-up times are critical.

Quality Assurance

Each hammer union assembly undergoes strict quality control protocols, including 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 602 components.

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