Cartridge Seals





A.W. Chesterton Company Cartridge Seals​​​​​​​

When reliability is a requirement, Chesterton's cartridge seals are the product of choice. These products are proven, rugged performers in a wide range of sealing applications across industries. Offering easy installation, cartridge seals are ideal for plant-wide standardization. Chesterton's cartridge offerings include exclusive, patented features such as self-centering lock rings and adjustable gland tabs. We offer cartridge seals in both single and dual seal configurations.

What use a Cartridge Seal ?

A cartridge seal is a completely self-contained design requiring no assembly prior to installation. The operating position of the seal faces are preset, eliminating detailed, exacting measurements and possible damage or contamination.​​​






Featured Seal: Chesterton 280 Heavy-Duty Cartridge Dual Seal

- Heavy Duty Capabilities for Difficult Applications -

This double mechanical seal allows for a new, higher level of reliability and performance with the convenience of a cartridgeHeavy Duty Double Mechanical Seal with Cartridge Design seal.  The Chesterton 280™ Double Mechanical Seal is specifically designed to handle demanding, high-torque applications.

This product is an ideal selection for such difficult applications as high concentration black liquor, hard-to-seal monomers such as acrylonitrile, vinyl chloride monomer, and any other potentially viscous solidifying liquids.







Operating Conditions   Materials  
Sizes 25 mm to 120 mm (1.00" to 4.75") Faces CB, SSC
Pressure 711 mm (28") Hg Vacuum to 20 bar g (300 psig) 17 bar g (247 psig) outboard Elastomers FKM, EPDM, FEPM, ChemLast™
Temperature -55° C to 300° C (-67˚ F to 570˚ F) Metals 1.4401 (316SS)
Speed 20 m/s (4000 fpm) Springs 2.4819 (Alloy C-276)
Fits ISO-3069, ASME B73.1, B73.2



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