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Chesterton 442M Mixer Split Seal

Chesterton 442M Mixer Split Seal


MS (Mechanical Seal)



Ball-and-socket O-rings

Patented, automatic centering

Patented, captive fasteners that will not fall out

Large axial and radial motion handling capability

Full vacuum and high pressure sealings

Non-clog external springs

Non-fretting to equipment

Dry run capable

Compact design

Integral dual flushport

Detail :

Split Seal that Accommodates Radial and Axial Shaft Motion for Industrial Mixers & Agitators
​​​​​​​​The Chesterton 442M split mechanical seal eliminates the need for equipment disassembly during seal installation and reduces maintenance costs. This split technology includes vacuum-to-positive pressure capability, which is especially beneficial in process vessel material transfer. It accommodates large radial and axial shaft motion associated with industrial mixers, agitators, reactors, and blenders.

​- Installation is made easy with patented, automatic centering
- Uses many patented features allowing for easy and cost-effective field repair
- The unique ball-and-socket O-Rings are the easiest to install and are leak-free without the use of adhesives
- Available in sizes ranging from 20 mm to 610 mm (.75" in.-24 in.)

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