/ Hammer Union Seals
General Purpose Nitrile Union Seals (Fig 602/1002) – 80 Shore A
Our Hammer Union Seals are engineered to provide leak-free performance in Weco® style union connections used in high-pressure flowlines. Manufactured from high-modulus elastomers and reinforced with anti-extrusion backup rings (Brass or Stainless Steel), these seals withstand the extreme pulsating pressures and abrasive fluids found in hydraulic fracturing and cementing operations.
Technical Specifications
- Working Pressure Ratings: 1,000 PSI to 22,500 PSI (depending on union rating)
- Durometer: 80-95 Shore A
Applications
- Hydraulic Fracking: High-pressure sand and proppant injection lines.
- Flowback Operations: Managing post-frac fluids and gases.
- Choke & Kill Manifolds: Safety-critical well control connections.
- Mud Lines: Circulating drilling mud systems.
- Acidizing & Cementing: Handling abrasive cement slurries and acid fluids.
General Purpose Nitrile Union Seals (Fig 602/1002) – 80 Shore A
1. Executive Summary
Inventory management can be a headache. Our General Purpose Nitrile Union Seals are the versatile solution designed to fit the broad range of Figure 602 (6,000 PSI) and Figure 1002 (10,000 PSI) unions.
Formulated with a 80 Shore A hardness (slightly softer than the standard 90 duro), these seals prioritize Conformability. They are the “Problem Solvers” for older, worn iron where sealing surfaces may be pitted, scratched, or slightly out of round.
2. The “80 Shore A” Advantage
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Cold Weather Installation: Hard rubber (90 duro) becomes rock-hard in freezing temperatures, making installation difficult. Our 80 duro compound remains pliable in cold weather, allowing field hands to install seals by hand without tools, reducing downtime.
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Surface Tolerance: The softer rubber flows better into micro-scratches on the union face, creating a seal on equipment that might otherwise leak with a harder seal.
3. Comprehensive Specifications
| Technical Parameter | Specification |
| Compatibility | Fig 602 (6K PSI) & Fig 1002 (10K PSI) |
| Material | General Purpose NBR |
| Hardness | 80 Shore A (Medium-Hard) |
| Pressure Rating | Up to 10,000 PSI (Depending on Union rating) |
| Available Sizes | 1″, 2″, 3″, 4″ |
| Backup Ring | Not included (Homogeneous Rubber) |
| Temperature | -20°F to +250°F |
| Fluid Service | Water, Hydraulic Fluid, Mild Acids |
4. Ideal For Testing & Temporary Lines
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Hydrostatic Testing: Perfect for test lines that are assembled and disassembled daily.
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Water Transfer: Temporary water lines for rig supply.
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Rental Fleets: Where equipment condition varies and a forgiving seal is required.