Bonded Seal, Nitrile (NBR), 68.6mm ID x 79.5mm OD x 3.5mm Thick, German 252

Bonded seals, also known as Dowty washers, are metal sealing washers with a rubber insert. They provide a secure, leak-proof seal for threaded connections. Bonded seals are ideal for static sealing where durability and fluid resistance are critical.

• Outside Diameter: 79.5mm
• Internal Diameter: 68.6mm
• Thickness: 3.5mm
• Cross Section Type: Standard
• German Standard: 252
• Rubber Type: Nitrile (NBR)
• Hardness: 80 ShA
• Metal Type: Mild Steel

Key Benefits

• High Pressure Resistance: Effective sealing under extreme pressure conditions.
• Durability: Long-lasting performance due to metal and rubber construction.
• Leak Prevention: Creates a tight, secure seal to prevent fluid and gas leakage.
• Easy Installation: Fits standard bolt sizes, simplifying maintenance and replacement.
• Reduced Downtime: Reliable sealing reduces the risk of equipment failure and maintenance needs.

Applications

• Hydraulic systems and equipment
• Pneumatic tools and machinery
• Automotive engines, transmissions, and braking systems
• Aerospace assemblies requiring high-integrity seals
• Oil and gas pipelines, refineries, and rigs
• Industrial machinery such as pumps, compressors, and gearboxes
• Marine and offshore equipment exposed to harsh environments

Additional Items

Bonded seals offer reliable sealing across high and low pressure and temperature conditions, while reducing bolt torque without compromising clamping force, thanks to a metal washer that prevents over-compression and distortion.