Chesterton’s 286 Tandem Bellows Seal geometry is designed for maximum safety and reliability.

• The inboard seal is double balanced for high reliability in both higher and lower pressure barrier fluid environments.
• The outboard bellows is OD pressurized for maximum safety and pressure capability.

The Chesterton 286 Dual Tandem Cartridge Bellows Seal uses a rugged proven bellows design for harsh chemical environments.  It meets the most stringent requirements for sealing emissions, toxic, carcinogenic and other hazardous fluids.

Chesterton’s 286 Tandem Bellows Seal

• Rotating bellows enhances performance in particulate services
• High efficiency pumping vanes create a helical flow pattern for ideal internal cooling
• Large diameter barrier fluid inlet and outlet ports for increased flow
• Bi-directional barrier fluid ports allow one seal design to operate on both clockwise and counterclockwise rotating equipment
• Outboard bellows is pressurized on its outside diameter for maximum safety and performance
• Compact design fits in standard pumps and rotating equipment