API 682 4th edition product range, Balanced pusher seals
Features
• API 682 Category 2 and 3, Type A, Arrangement 2 and 3 seal
• Dual seal in face-to-back arrangement
• Same size of inboard and outboard seal
• Balanced
• Cartridge unit
• Stationary multiple springs
• Solid seal faces
Advantages
• Suitable for higher speeds
• Good followability due to no influence from run-out, squareness or vibration of the shaft
• Compact design
• Low heat generation and power consumption
• Longer seal life
• Pressure-balanced design
• No damage to shaft sleeve