Cartridge Mechanical Seals

Mechanical Seals for any application

We offer a range of standard inventory cartridge mechanical seals, including single and double seals to suit even the most demanding application and thanks to our modular design system we offer them with the best on-time delivery performance in the industry.

For unusual applications our Standard Plus seal range offers all the benefits of a standard seal while meeting our customer’s specific needs. This covers competitor replacement seals, seals designed for specific pumps and seals designed for pumping specific processes. 

Proven Design - Cartridge Construction

Cartridge mechanical seal construction is a proven reliability improvement. The seals are pre-assembled at the factory, pressure tested and shipped as a unit, leading to improved performance as errors due to incorrect installation are reduced. Cartridge construction eliminates the need to measure and set spring compression, and having a mechanical seal pre-assembled means that the seal faces are protected from damage during installation.

Cartridge seal range

For more information about seal types, and the advantages of seals over gland packing, see our Seal Technology Training Video


Use the navigation menu to filter through the product range, or take a look at some of our featured products below.


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CAPI A, B, C | Single Mechanical Seal


Single Mechanical Seal – Oil & Gas

The AESSEAL® API Type A, B and C single-seal range offers the user an unprecedented range of API engineered sealing solutions to suit all application requirements.

CDSA - Cartridge Mounted Double Seal


Cartridge Mounted Double Seal

This modular seal is ideal for the containment of hazardous process fluids.

CFFC - High Performance Mechanical Seal


High Performance Mechanical Seal

The CFFC™ and HPVD™ are dual seals. (The CFC™ and HPVS™ are the single versions.)

These robust seals are designed for use on difficult applications, including oil pipeline pumping, water injection and boiler feed duties.

CSM - Single Mixer Seal


Single Mixer Seal

The CSM™ cartridge single seal for mixers is available in a wide range of seal face, elastomer and alloy combinations, to suit individual applications.

CURC - CRCO - CURE Single Mechanical Seal


Single Mechanical Seal

The AESSEAL CURC™, CRCO™ and CURE™ mechanical seals are part of a range of seals specifically designed to optimize the use of Silicon Carbide.

DMSF / DMSC double mechanical seal


Double Monolithic Stationary Flow / Convection

The DMSF™ (Double Monolithic Stationary Flow) range of double mechanical seals has been designed as a high-performance sealing solution for arduous applications.

SMSS - Single Cartridge Seal


Single Cartridge Seal

A single cartridge stationary seal with modular monolithic seal faces.