Chesterton’s HVS is the new recommendation for applications that exceed the performance limits of conventional seals.

Unlike standard face seals,the HVS uses an engineered polymer sealing element that can withstand the torque,shear and frictional heat common when pumping viscous products.Triple contact surfaces molded into a rugged,single piece sealing element provide high reliability in an easy-to-use, versatile and economical cartridge seal design.

• Fits existing equipment for easy conversion from older seal types.
• Interchangeable engineered polymer sealing element.
• Cartridge seal simplicity eliminates installation errors.
• Two step installation with automatic centering.
• Field repairable.

Chesterton’s High Viscosity Seal 

• Designed to fit the most popular positive displacement pumps with no modifications.
• Automatic centering and axial positioning allow for seal installation in just two steps.
• The HVS uses an ultra-hard, durable seal sleeve for maximum reliability in the most difficult applications.
• There are only three major components.
• The seal is easily rebuilt by simply replacing the high performance sealing element.
• Three exclusive, engineered polymer materials are available to maximize sealing flexibility:
• Chesterton 100 for fluids such as Oil, Resin and Adhesive Emulsions, and Paints
• Chesterton 400 for water based fluids such as Polymeric Emulsions, Soaps and Surfactants
• Chesterton 510 for food grade, sanitary requirements such as Chocolate, Syrups, and Corn Syrups