1" Weco Hammer Union Seal (Stainless Steel & Viton) | High-Temp & Sour Service Seal Ring

The 1" Weco Hammer Union Seal featuring a Stainless Steel insert and premium Viton® (FKM) elastomer is an elite sealing solution engineered for the most severe, high-pressure flowline applications. Designed to fit seamlessly into standard 1-inch Weco-style hammer unions, this specialized seal ring is the ultimate defense against fluid bypass in extreme environments where standard rubber seals fail.

This seal achieves its superior performance through a composite design. The core sealing element is molded from high-grade Viton® (Fluorocarbon / FKM), a heavy-duty elastomer globally recognized for its exceptional resistance to extreme temperatures, harsh chemicals, sour gas (H2S), and corrosive petroleum fluids. To complement the Viton, a precision-machined Stainless Steel Anti-Extrusion Ring is embedded into the seal. Under extreme pressure spikes and high flow rates, this metal backing ring acts as a rigid support structure, preventing the elastomer lip from extruding into the union's clearance gap and maintaining a tight, blowout-proof connection.

Ideal for aggressive sour service and high-temperature operations, this 1" Stainless Steel / Viton hammer union seal ensures unparalleled reliability and safety for your critical flow control infrastructure during acidizing, fracturing, and well-testing operations.

Features & Benefits

• Stainless Steel Anti-Extrusion Ring: The integrated metal backing reinforces the seal structure, entirely preventing elastomer extrusion and blowout under extreme operational pressures.

• Premium Viton® (FKM) Elastomer: Provides unmatched resistance to high temperatures, sour gas (H2S), acidic stimulation fluids, and volatile petrochemicals.

• Sour Service Ready: Specifically engineered to withstand the degrading effects of hydrogen sulfide and corrosive environments, maintaining integrity where standard Buna or Nitrile degrades.

• Pressure-Energized Geometry: Utilizes line pressure to expand the Viton sealing lips against the union's mating surfaces, establishing a dynamic seal that strengthens with increased pressure.

• Exact Fitment: Precision manufactured to ensure a drop-in, zero-clearance fit for 1" Weco-style hammer unions (including Fig 1502 profiles).

Specifications & Technical Details

Applications

This 1" Stainless Steel / Viton Weco Seal is explicitly designed for severe-service flowline environments. It is critical for sour gas (H2S) wells, high-temperature fluid handling, acidizing manifolds, high-pressure choke and kill lines, fracturing operations utilizing aggressive chemicals, and any critical infrastructure requiring maximum chemical and extrusion resistance.

Quality Assurance

Every composite hammer union seal undergoes rigorous testing. The Viton elastomer is tested for chemical composition and durometer accuracy, while the stainless steel inserts are dimensionally inspected for exact tolerances. The final bonded assembly is evaluated to guarantee flawless cohesion between the metal ring and the elastomer, ensuring maximum reliability in the field.

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