Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Custom BRT PEEK-BEIGE High Pressure Sealing Backup Ring
- Category：Backup Ring
- Temperature: -55℃ ~ +260℃
- Material：Pure PEEK
- Color: Natural Beige
- Hardness: 85-95 Shore D
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Product description：BRT PEEK-BEIGE Backup Ring is specially designed to prevent O-rings from being extruded into clearances in hydraulic and pneumatic high-pressure systems. It features excellent chemical resistance (resistant to oil, solvents, acid & alkali except concentrated sulfuric acid) and stable dimensional performance.
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Model Definition
BRT PEEK-BEIGE refers to beige BRT type PEEK backup ring, specially used for hydraulic and pneumatic high-pressure sealing, to prevent O-rings from being extruded into clearances.
- BRT: Standard sealing industry model, representing split or solid backup ring for high-pressure support of O-rings and oil seals.
- PEEK: Polyetheretherketone, high-performance special engineering plastic.
- BEIGE: Natural beige original color of pure PEEK raw material.
2. Core Characteristics
- Temperature Resistance: Long-term working temperature -55℃ ~ 260℃, short-term up to over 300℃.
- Pressure Resistance: Max working pressure up to 70MPa, far higher than conventional PTFE material.
- Chemical Resistance: Excellent resistance to oil, solvents, acid & alkali, hydrogen sulfide and steam (except concentrated sulfuric acid).
- Mechanical Property: High rigidity, low creep, superior wear resistance and stable dimension.
- Color: Natural beige (pure PEEK); black version is usually carbon fiber/graphite reinforced grade.
3. Specification Marking Example
- Bore type: BRT80×70×2.5 PEEK-BEIGE (OD80 × ID70 × Thickness 2.5mm)
- Shaft type: BRT220×224×2 PEEK-BEIGE (ID220 × OD224 × Thickness 2mm)
4. Application Range
- High-pressure hydraulic cylinders, pumps, valves and motors
- Oil & gas wellhead and downhole tools
- Aerospace, construction machinery and high-pressure chemical equipment
5. Advantage vs Ordinary PTFE-BRT
- Higher temperature resistance: 260℃ vs 200℃
- Higher pressure resistance: 70MPa vs 35MPa
- Longer service life: 3-5 times wear resistance
- Better dimensional stability with low creep
6. Remarks
- Abbreviation: Some manufacturers mark as PEEK-BGE
- Custom service: Custom ID/OD/thickness available, tolerance ±0.05mm
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