4" Fig 1002 Threaded Hammer Union – Oil & Gas Flowline Fitting

The 4" Figure 1002 Threaded Hammer Union is a massive, heavy-duty flow control component expertly engineered for secure, ultra-high-volume fluid routing in demanding upstream oil and gas operations. Rated for an impressive 10,000 PSI Cold Working Pressure (10M CWP), this highly resilient, large-bore hammer union provides a dependable, fast-makeup connection for massive 4-inch piping systems. It is an essential asset for heavy-duty fracturing support, extremely high-volume cementing operations, large-scale acidizing networks, and high-capacity choke-and-kill line configurations.

Manufactured from premium high-strength forged alloy steel, the large 4-inch Figure 1002 union is built to endure extreme internal stresses, severe mechanical impacts, and the highly abrasive environments typical of high-pressure, high-flow oilfield service. It features a specialized, replaceable lip-type elastomeric seal ring that fits securely into the female sub. This primary elastomeric barrier effectively protects the secondary metal-to-metal seating surface from abrasive fluids and corrosive agents, ensuring absolute bubble-tight pressure containment under massive fluid loads while significantly extending the lifespan of the union assembly.

Equipped with precision-cut female threaded ends (NPT / Line Pipe), this massive 4-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 10,000 PSI high-capacity flowline networks.

Features & Benefits

• 10,000 PSI Pressure Rating (10M): Engineered to safely manage extreme high-pressure fluid systems with a 10,000 PSI Cold Working Pressure rating.

• Massive Flow Capacity: The massive 4-inch nominal size accommodates the ultra-high fluid volumes required for the most severe-service 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 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.

• Precision NPT Threads: Features standard threaded ends for quick, vibration-resistant makeup onto massive 4-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 fluids.

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

Specifications & Technical Details

Applications

This high-capacity, high-pressure 4" Figure 1002 threaded hammer union is strictly essential for upstream operations requiring extremely reliable fluid containment alongside massive flow volumes. Typical applications include heavy-duty large-bore well servicing lines, high-volume cementing and acidizing networks, large-scale surface well testing configurations, high-pressure massive manifold setups, and general oilfield fluid routing where fast rig-up and 10,000 PSI pressure containment are 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 1002 components.

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