A copper flare gasket (also called a copper flare washer) improves flare fitting reliability by filling microscopic gaps caused by surface imperfections, temperature changes, and torque variation, ensuring a leak-resistant seal.
KEY-CNC manufactures OEM pure copper flare gaskets from C101 oxygen-free copper and C110 copper using CNC turning. Each gasket features consistent thickness, flatness, and burr-free sealing surfaces for dependable performance.
Compared with stamped washers, CNC-machined copper flare gaskets provide better accuracy and repeatability. With ISO 9001:2015 quality control and full material traceability, KEY-CNC supplies HVAC/R, refrigeration, fuel, and hydraulic industries worldwide.
Copper Flare Gasket Key Features
Solid Copper Construction -
Pure copper, no coatings or layers
Consistent Crush Performance - Optimized for SAE 45° flare seats
Excellent Thermal Conductivity -
Helps dissipate heat at the seal area
Wide Chemical Compatibility - Reliable in various fluid environments
Precision Full-Face Contact -
Smooth, burr-free sealing surfaces
Manufacturing Capability
Every OEM pure copper flare gasket from KEY-CNC is produced through a controlled CNC machining process, ensuring consistent dimensions, reliable sealing performance, and full traceability.
Material Preparation
C101 oxygen-free copper and C110 copper bar stock are inspected for material quality and dimensions before machining. Annealing is available for improved sealing flexibility.
Each gasket is machined in a single CNC setup to ensure accurate dimensions, concentricity, and consistent sealing performance.
Precision deburring removes sharp edges, while controlled surface finishing provides smooth, reliable sealing contact.
All gaskets are inspected under ISO 9001:2015 standards, with dimensional records and material traceability available for every batch.
Copper Flare Gasket Applications
Why Choose KEY-CNC for OEM Pure Copper Flare Gaskets
- CNC machined from C101 and C110 copper for accurate dimensions and consistent sealing performance.
- Full material traceability with ISO 9001:2015 quality control for reliable batch consistency.
- Custom sizes, tolerances, and specifications available for OEM applications.
- Support from prototype to volume production with stable global supply.
- Trusted for HVAC/R, refrigeration, fuel, hydraulic, and industrial systems.
Frequently Asked Questions
Can you customize copper flare gaskets according to our drawings?
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Yes. We provide OEM customization including custom sizes, thicknesses, profiles, tolerances, and packaging based on customer drawings or samples.
What is the customization process?
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The process includes drawing review, material selection, CNC machining, quality inspection, and shipment. Our engineering team supports design confirmation and production optimization.
What is the MOQ for custom copper flare gaskets?
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MOQ depends on the gasket size, material, and production requirements. We support both prototype orders and volume production for different customer needs.
What is the typical lead time for production?
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Standard orders usually require 7–15 working days after drawing approval and order confirmation. Lead time may vary depending on quantity and customization complexity.
What quality control services do you provide?
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All copper flare gaskets are inspected under ISO 9001:2015 quality standards. We check key dimensions, surface finish, and sealing performance to ensure consistent quality for every batch.
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