Chesterton 155 Standard Single Cartridge Seal

Chesterton 155 Standard Cartridge Single Seal
A Flexible Single Mechanical Seal for Plant-Wide Use

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The Chesterton 155™ cartridge-style single seal is the perfect seal for all of your general-purpose plant applications. This simple mechanical seal design results in a more robust and reliable seal for general applications, while the low profile seal faces allow for low heat generation—making it ideally ​suited for non-lubricating fluids.

With the addition of the adjustable gland tabs, the Chesterton 155 can adapt to any bolting pattern, making installation easier.

1NSF version available upon request.

Adjustable/removable gland tabs
360-degree flush port rotation
Quick-release centering straps
Available in special alloys
Dynamically stress-relieved narrow profile faces
Low heat generation monolithic faces
Self-Centering Lock Ring™ eliminates misalignment
Stationary springs
Certified to NSF/ANSI 61​
Technical Data​​
Sizes25 mm to 120 mm (1.00" to 4.75")
Pressure711 mm (28") Hg Vacuum to 40 bar g  (600 psig*)
Temperature–55° C to 300° C  (–67° F to 570° F)
Speed25 m/s or (5000 fpm)

Sealed pressure capabilities are dependent on the fluid sealed, temperature, speed and face combination. Consult Chesterton Mechanical Seal Engineering to confirm suitability for your application and to receive a product recommendation.



Installation Instructions: 155 CARTRIDGE SINGLE SEAL (English) Instructions: 155 CARTRIDGE SINGLE SEAL (English)pdf
Catalog: Mechanical Seals (English) Mechanical Seals (English)pdf
Brochure: Chesterton 155 Single and 255 Dual Cartridge Seals (English) Chesterton 155 Single and 255 Dual Cartridge Seals (English)pdf
Technical Material Reference (English) Material Reference (English)pdf
Environmental Control Plans (English) Control Plans (English)pdf