API 682 4th edition product range, Balanced pusher seals
Features
• API 682 Category 2 and 3, Type A, Arrangement 2 or 3 seal
• Dual seal in face-to-back arrangement
• Same seal size on inboard and outboard seal
• Balanced
• Cartridge unit
• Rotating multiple springs
• Solid seal faces
Advantages
• Compact design
• Low heat generation and power consumption due to narrow seal face width
• Longer seal life
• Pressure-balanced design prevents mating ring being forced out under reverse pressure
• No damage to shaft sleeve