3" Fig 100 Threaded Hammer Union – Low-Pressure Flowline Fitting

The 3" Figure 100 Threaded Hammer Union is a durable, general-purpose flow control component engineered for reliable, high-volume, low-pressure fluid routing across upstream, midstream, and industrial applications. Rated for a 1,000 PSI Cold Working Pressure (CWP), this economical yet highly robust hammer union provides a fast-makeup, secure connection for large-bore 3-inch piping systems, making it exceptionally effective for standard rig utility lines, bulk water transfer, air systems, and general low-pressure manifold configurations.

Manufactured from high-strength industrial-grade forged steel, the Figure 100 union utilizes a precision-machined metal-to-metal seating surface between the male and female subs. This streamlined design ensures dependable pressure containment without the need for secondary elastomeric seals, significantly simplifying field maintenance and extending the operational lifespan of the fitting in standard utility environments. The heavy-duty wing nut allows for rapid, tool-free assembly and dismantling in the field, critically reducing rig-up times for massive temporary flowlines.

Equipped with precision-cut female threaded ends (NPT / Line Pipe), this 3-inch union allows for secure, vibration-resistant integration onto standard threaded pipework. Serving as a foundational element in low-pressure fluid management, the 3" Fig 100 Hammer Union delivers massive flow capacity, structural resilience, and rapid deployment capabilities for everyday field and utility operations.

Features & Benefits

• 1,000 PSI Pressure Rating: Engineered to safely manage continuous fluid transfer in standard low-pressure systems with a 1,000 PSI Cold Working Pressure (CWP) rating.

• High Flow Capacity: The large 3-inch bore accommodates massive fluid volumes, minimizing flow restrictions in large-scale suction and transfer networks.

• Metal-to-Metal Sealing: Features a precision-machined conical and spherical seating design that provides a tight, reliable seal without the need for secondary elastomer rings, lowering maintenance needs.

• Rugged Construction: Built from industrial-grade forged steel to withstand general mechanical field handling, harsh weather conditions, and continuous vibration.

• Threaded Connections: Precision-machined NPT threaded ends ensure a secure, straightforward, and vibration-resistant connection to standard 3-inch threaded line pipe.

• Economical Solution: Provides a cost-effective yet highly durable connection for non-critical, high-volume utility and water lines.

Specifications & Technical Details

Applications

This large-bore 3" Figure 100 threaded hammer union is essential for reliable, high-capacity, low-pressure fluid systems. Typical applications include heavy-duty rig utility lines, standard water and air transfer networks, low-pressure manifold assemblies, bulk storage tank tie-ins, and general industrial fluid transfer where rapid rig-up and dependable 1,000 PSI containment are required.

Quality Assurance

Each hammer union assembly undergoes rigorous quality control protocols, including precision dimensional verification, exact thread gauging, and full material traceability (MTRs), ensuring complete structural integrity, safe pressure containment, and reliable field performance.

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