
HNBR RGD O-RING
Product Overview
KAFLON® HNBR RGD O-Rings are engineered from specially formulated Hydrogenated Nitrile Butadiene Rubber (HNBR) compounds designed to resist Rapid Gas Decompression (RGD) failure in high-pressure gas environments.
In oil & gas systems, elastomer seals exposed to high-pressure gas can suffer internal blistering and cracking during sudden decompression. KAFLON RGD-resistant HNBR compounds are optimized to minimize internal damage, ensuring long-term sealing integrity in demanding upstream and midstream applications.

Key Features & Benefits
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Enhanced RGD Resistance
Designed for high-pressure gas exposure environments.
Excellent Mechanical Strength
Higher tensile and tear resistance than standard NBR.
Improved Thermal Stability
Typical operating range: –30°C to +150°C (compound dependent).
Good Sour Gas Compatibility
Suitable for oilfield environments (compound dependent).
Outstanding Abrasion & Wear Resistance
Long Service Life Under Cyclic Pressure Conditions
Typical Material Properties
| Property | HNBR RGD O-Ring |
|---|---|
| Material Type | Hydrogenated Nitrile (HNBR) |
| Hardness | 80–95 Shore A |
| Temperature Range | –30°C to +150°C |
| Gas Resistance | High |
| Mechanical Strength | Excellent |
| Compression Set | Low |
| RGD Performance | Optimized Compound |
Typical Applications in Oil & Gas
KAFLON® HNBR RGD O-Rings are widely used in:

Subsea valve assemblies

Downhole tools

Wellhead equipment

Gas compressors

Pressure regulators

Blowout preventers (BOP systems)
Comparison: HNBR RGD vs Standard HNBR
| Feature | HNBR RGD | Standard HNBR |
|---|---|---|
| Rapid Gas Decompression Resistance | High | Moderate |
| High-Pressure Gas Suitability | Recommended | Limited |
| Mechanical Strength | Excellent | Very Good |
| Oil & Gas Application | Critical Service | General Service |
RGD Performance Testing
HNBR RGD compounds can be validated according to industry test methods such as:
NORSOK M-710 (where applicable)
ISO 23936-2
Internal high-pressure decompression simulation tests

Why Choose KAFLON®

Why Choose KAFLON® HNBR RGD O-RINGS?
Engineered for extreme oil & gas environments
Optimized compound formulation
Reliable high-pressure gas sealing performance
Competitive alternative to global premium sealing brands
Technical engineering support for critical applications
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