2" Weco Hammer Union Seal (Viton / Black) | High-Temp & Sour Service Elastomer

The 2" Weco Hammer Union Seal manufactured from premium Black Viton® (FKM) is an advanced, heavy-duty sealing solution designed for the most demanding oilfield environments. Engineered for a precise, drop-in fit into standard 2-inch Weco-style hammer unions, including the industry-standard Figure 1502, this high-performance seal acts as an essential pressure barrier against volatile, high-temperature, and corrosive fluids where standard elastomers would rapidly fail.

This specific seal is molded in the industry-standard Black color, offering the exceptional performance characteristics of Viton with maximum UV and ozone resistance inherent to carbon-black filled elastomer compounds. Molded from genuine Viton® (Fluorocarbon / FKM), this seal provides unparalleled resistance to extreme elevated temperatures, synthetic lubricants, sour gas (H2S), and highly aggressive completion chemicals.

Combined with a pressure-energized lip design that actively expands against the union’s mating metal surfaces as internal line pressure increases, this black Viton seal guarantees a dynamic, blowout-proof connection under the most severe well-servicing and flowline conditions.

Features & Benefits

• Premium Viton® (FKM) Elastomer: Delivers maximum resistance to high temperatures, volatile petrochemicals, acidic stimulation fluids, and synthetic muds.

• Standard Black Compound: Carbon-black filled formulation provides excellent physical toughness and superior resistance to UV light and ozone degradation during outdoor storage and operation.

• Sour Service Ready: Specifically formulated to withstand the degrading, embrittling effects of hydrogen sulfide (H2S), making it an essential component for sour gas environments.

• Pressure-Energized Geometry: Utilizes internal flowline pressure to actively push the sealing lips outward against the metal union faces, creating a barrier that strengthens as pressure spikes.

• Exact Fitment: Manufactured to strict dimensional tolerances to ensure a seamless fit for standard 2" Weco-style hammer unions (specifically Fig 1502 profiles).

Specifications & Technical Details

Applications

The 2" Black Viton Weco Seal is explicitly designated for severe-service flowline systems. It is an indispensable component for sour gas (H2S) well servicing, high-temperature pump discharge lines, acidizing manifolds, severe-duty fracturing operations utilizing aggressive chemicals, and any critical infrastructure where standard Buna or HNBR elastomers are insufficient.

Quality Assurance

Each batch of our Black Viton union seals undergoes rigorous quality control to verify dimensional accuracy, precise durometer (hardness), and correct FKM chemical composition. This testing ensures that every seal delivers maximum chemical stability and extrusion resistance, guaranteeing reliability and safety in the field.

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