JB B2-8 1/2" SAE Gasket

For veteran technicians, the JB Industries B2-8 is the standard-issue solution for ensuring a gas-tight seal on 1/2" SAE copper flare connections. These gaskets are specifically engineered for ACR tube fittings where a secondary sealing surface is required to prevent refrigerant leaks in high-pressure environments. Unlike inferior imports, these copper flare gaskets are manufactured in the USA from premium-grade copper, allowing for the precise deformation needed to fill minor surface imperfections on the flare face without the risk of cracking or 1/2-inch tubing collapse.

The B2-8 1/2 copper gasket is a critical component for brass-to-brass or brass-to-steel connections, common in mini-split installations, refrigeration racks, and industrial fluid transfer systems. When working with refrigerant flare fittings, utilizing these soft copper shims eliminates the need for over-torquing, maintaining the integrity of the 45-degree flare. Designed to meet SAE J513 standards, these gaskets provide a reliable leak-proof seal even under the variable thermal loads and vibration common in residential and commercial HVAC service.

• Durable Copper Material: High-tensile copper construction resists corrosion and facilitates a superior metal-to-metal seal.
• System Compatibility: Engineered for 1/2" OD tubing and compatible with all standard 45-degree SAE flare fittings.
• Pressure Reliability: Rated for high-pressure ACR applications, ensuring a long-term leak-proof seal in demanding environments.
• Made in the USA: Precision-machined by JB Industries to strict industry standards for consistent thickness and finish.

• How do I ensure a perfect seal with the B2-8 gasket? For technical accuracy, ensure the flare face is clean, center the gasket, and tighten the flare nut approximately 2-1/2 turns past hand-tight.
• Can these be used on both brass and steel fittings? Yes, these are specifically designed for brass-to-brass or brass-to-steel connections to prevent galling and leaks.
• Are these gaskets suitable for high-pressure refrigerants? Absolutely; they are a staple in the field for ensuring system integrity in modern high-pressure refrigeration systems.

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.