/ O-Rings
High-Performance NBR O-Rings for Oil Field Sealing
Product Details:
Place of Origin: Shanghai, China
Brand Name: Royal Way®
Certification: ISO 9001
Applicable dimensions and customer-specified standards are confirmed against the requested drawing or service requirements
Technical Specifications
- Pressure Rating: 2000 to 15,000 PSI
- Temperature Range: -40°F to 350°F
- Material: HNBR Composite
Applications
- Wellhead equipment
- Valves
- Pipeline flanges and joints
- Pumps
- Subsea equipment etc

1. Product Overview
High-performance Nitrile Butadiene Rubber (NBR) O-rings are engineered for critical sealing applicationsin oil and gas fields, offering exceptional resistance to hydrocarbons, drilling fluids, and extreme operating conditions. These O-rings are intended for high-pressure sealing applications; final fit, pressure rating and acceptance criteria depend on the equipment and service requirements, making them indispensable for drilling rigs, pipelines, and subsea equipment
2. Key Material Properties
NBR’s unique composition delivers unmatched performance in harsh environments:
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Oil & Fuel Resistance: Withstands prolonged exposure to crude oil, hydraulic fluids, and lubricants without swelling or degradation
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Temperature Range: Operates effectively between -40°C to 120°C(expanded to -55°C to 150°C with special formulations)
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Abrasion Resistance: Maintains integrity under high-pressure sand-laden fluids common in hydraulic fracturing
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Chemical Compatibility: Resists water, alcohols, and glycol-based lubricants (excluding ketones, nitro compounds, and ozone)
3. Critical Applications
|
Application |
Function |
|---|---|
|
Drilling Equipment |
Seal drill stem joints, mud pumps, and BOPs to prevent wellbore leaks. |
|
Pipeline Connections |
Ensure leak-proof integrity in subsea manifolds and frac systems. |
|
Refinery Systems |
Handle corrosive hydrocarbons, catalysts, and high-temperature distillates. |
|
Hydraulic Fracturing |
Maintain pressure in frac fluid delivery lines under 5,000–20,000 psi. |
4. Technical Specifications
|
Parameter |
Details |
|---|---|
|
Material |
NBR (Nitrile Butadiene Rubber), Shore A hardness 40–90 |
|
Pressure Range |
Up to 20,000 psi (static); 5,000 psi (dynamic) |
|
Temperature |
-40°C to 120°C (general use); -55°C to 150°C (special grades) |
|
Size Range |
ID: 0.5–1,200 mm; CS: 1–30 mm |
|
Standards |
Applicable dimensions and standards are confirmed against the requested drawing or specification. |
5. Competitive Advantages
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Cost-Effective: Lower production costs compared to FKM/Viton alternatives while maintaining durability
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Customizability: Available in non-standard sizes, colors (per Pantone), and material blends (e.g., HNBR for enhanced heat resistance)
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Quick Delivery: Mold-opening services enable rapid production of prototypes or bulk orders
6. Compliance & Safety
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Application review: Product selection and acceptance criteria are confirmed against the requested equipment and service conditions.
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Sour-service requirements: Material and service requirements can be reviewed when the applicable specification is provided.
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ISO 9001 Quality Assurance: Rigorous testing for compression set (≤20% deformation) and surface cracks
7. Maintenance & Installation Best Practices
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Pressure Testing: Hydrostatically validate integrity at 1.5x rated pressure pre-use
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Lubrication: Apply high-temperature grease (NLGI 2) every 500 operational hours to reduce friction
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Inspection Intervals: Replace seals every 500–1,000 operational hoursin abrasive environments
8. Case Study: Offshore Drilling Operations
A Middle Eastern oil producer reduced downtime by 40% after switching to NBR O-rings with 80 Shore A hardnessand PTFE-coated surfaces. The seals maintained integrity in 15,000-psi mud systems for 8-month cycles, cutting maintenance costs by $250,000 annually
CTA: Optimize Your Oil Field Sealing
For a product-specific review, provide:
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Specification review: Share the applicable equipment standard or drawing for technical review.
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Bulk Discounts: Save 20–30% on orders exceeding 10,000 units.
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Global Logistics: Door-to-door delivery with traceable documentation.