JB B2-6 3/8" SAE Gasket

The JB B2-6 3/8" SAE Copper Flare Gasket is a critical component for achieving a permanent, leak-proof seal in high-pressure HVACR systems. Engineered from premium-grade soft copper, these gaskets are designed to deform slightly under torque, effectively filling minor imperfections on the flare surface to prevent refrigerant loss. Unlike lower-quality imports, the JB Industries B2-6 utilizes a high-tensile brass alloy—comprised of 65% copper and 35% zinc—ensuring superior high-pressure sealing and excellent corrosion resistance in demanding environments. This 3/8 inch flare gasket is specifically rated for HVAC refrigeration fittings and is compatible with a wide array of tubing materials including copper, brass, aluminum, and steel. It is rated to withstand vacuum and pressure levels up to 5,000 psi, depending on the specific application and connection type. For technicians performing critical installs or repairs, these gaskets provide the reliability required for leak prevention in both brass-to-brass and brass-to-steel connections.

Key Benefits

• Ensures a refrigerant leak seal by conforming to the 45-degree flare face.
• Manufactured with high-tensile strength materials to resist cracking and fatigue.
• Versatile 3/8 SAE flare sizing compatible with standard ACR tools and fittings.
• Capable of handling extreme pressure ratings up to 5,000 psi in specific configurations.
• Provides a stable, metal-to-metal contact point that resists vibration and thermal expansion.

Common Questions

When should I use a copper flare gasket?
Use the JB B2-6 whenever you are connecting 3/8" SAE flare fittings where a perfect seal is not guaranteed by the flare alone, particularly in systems prone to vibration or when reusing existing flare nuts.

Are these gaskets compatible with R-410A systems?
Yes, the copper flare washer design is suitable for high-pressure refrigerants like R-410A, provided the fitting is torqued to the manufacturer’s specification to ensure a proper flare connection seal.

Can these be used on aluminum tubing?
Absolutely. These HVAC flare seals are compatible with copper, brass, aluminum, and steel tubing, making them a versatile item for any service truck.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.