Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
High-Temp PEEK Spring Seals for Extreme Conditions
Spring-Energized PEEK Seals for 260℃ High-Pressure & Chemical Resistance
Engineered with high-performance PEEK material and a spring-energized design, these seals offer superior resistance to continuous temperatures up to 260°C, pressures up to 70MPa, and aggressive chemicals. The self-energizing mechanism ensures reliable sealing across dynamic or static applications, adapting to thermal expansion, wear, and pressure fluctuations for leak-free performance. Ideal for extreme environments in industries like petrochemical, semiconductor, aerospace, and medical devices, they deliver extended service life and reduced maintenance compared to conventional seals.
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.
Product Advantages
Extreme Temperature Resistance: Operates reliably from -180°C to +260°C (peak 315°C), ideal for cryogenic liquids (e.g., LNG) and superheated steam applications.
Superior Pressure Handling: Withstands up to 70MPa (10,000 PSI) static/dynamic pressure, featuring a self-energizing design that tightens sealing force as system pressure increases.
Chemical Immunity: Resistant to most acids, alkalis, solvents, and hydrocarbons (excluding concentrated sulfuric acid), outperforming traditional rubber or PTFE seals in corrosive media.
Longevity & Low Maintenance: PEEK's low friction (coefficient ≤0.15) and wear resistance extend service life up to 10x longer than conventional seals, reducing downtime and replacement costs.
Adaptive Sealing: The built-in V-shaped or helical spring (stainless steel 316/Inconel 718) provides initial preload for zero-pressure sealing and compensates for thermal expansion, misalignment, or surface wear.
Product Details
Materials & Design
Base Material: Virgin PEEK (standard) or filled compounds (30% CF/GF for enhanced rigidity, graphite/PTFE for self-lubrication).
Spring Options: Corrosion-resistant stainless steel (316/304) or high-nickel alloy (Inconel 718) for extreme chemical/high-temperature environments.
Seal Types: Customizable for radial (shaft/piston) or face sealing; compatible with AS568A O-ring grooves for easy retrofitting.
Surface Finish: Polished sealing lips (Ra ≤0.2μm) minimize friction and particle retention, suitable for cleanroom applications.
Applications
Petrochemical & Oil/Gas: High-pressure valves, subsea equipment, reactor seals (resists H₂S, CO₂, and drilling fluids).
Semiconductor & Electronics: Vacuum chambers, plasma etching tools (low outgassing for clean environments).
Aerospace & Defense: Rocket fuel valves, aircraft engine seals (withstands cryogenic fuels and thermal cycling).
Medical & Pharmaceutical: Sterilization autoclaves, surgical robots (biocompatible grades available, ISO 10993 certified).
Energy & Renewables: Hydrogen fuel cells, CSP (concentrated solar power) thermal storage systems.
FAQ
Q1: Can these seals handle rotational motion?
A: Yes! Our graphite/PTFE-filled PEEK variants reduce friction for rotational applications (up to 25m/s linear speed).
Q2: What’s the difference between virgin and filled PEEK?
A: Filled compounds enhance specific properties: CF for stiffness & thermal conductivity, GF for higher heat resistance, and PTFE/graphite for lubricity.
Q3: Are they suitable for food contact?
A: Absolutely. We offer FDA-compliant grades with smooth surfaces to meet strict hygiene standards.
Q4: How to install without damaging the seal?
A: Use a soft mandrel for installation, ensure groove dimensions (AS568A standard) and apply food-grade lubricant to the sealing lips.
Q5: Can you customize sizes for non-standard applications?
A: Yes! We manufacture seals from 1mm ID to 2000mm OD, with rapid prototyping for unique requirements.
Why Choose Us?
Engineering Expertise: 15+ years in high-performance sealing solutions, with in-house material testing labs (ISO 9001:2015 certified).
Global Compliance: Products meet RoHS, REACH, and industry-specific standards (e.g., API 6A for oil/gas).
Rapid Turnaround: Stocked materials for quick delivery; custom designs finalized in 7-10 business days.
Tailored Solutions: Dedicated R&D team to optimize seal geometry, material formulation, and spring force for your exact operating conditions.
Contact us today to request a sample or discuss your extreme-sealing challenge!
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