Overview
The Chesterton 698407 is an elastomer replacement set designed for the Chesterton 442 split mechanical seal family. This genuine component kit supplies the elastomer elements required for seal maintenance, rebuild, and repair operations on 442-series seals used across industrial pumping applications. The 442-30 designation indicates FKM (Viton) elastomer material, a premium choice for broad chemical compatibility and thermal stability.
Key Features
- Genuine OEM Component: Manufactured by A.W. Chesterton Company for authenticated performance and fit
- FKM Elastomer Material: Provides excellent chemical resistance and thermal stability across a wide range of industrial fluids
- Drop-In Replacement: Simplifies on-site seal maintenance without requiring special tools or custom parts
- Standard Spare Parts Kit: Reduces inventory complexity and lowers long-term maintenance costs
- New in Box Condition: Sealed, unused component ready for immediate deployment
Technical Specifications
- Manufacturer: A.W. Chesterton Company
- Part Number: 698407
- Series: 442 Split Mechanical Seal
- Elastomer Type: FKM (Viton) – 442-30 designation
- Material Composition: Fluorocarbon rubber (FKM)
- Operating Temperature: Up to 120°C (250°F)
- Pressure Rating: 0 to 30 bar g (0 to 450 psig)
- Speed Capability: Up to 20 m/s (4,000 fpm) wet
- Standards & Approvals: ISO-3069-S, ASME B73.1, ASME B73.2, NSF61, ACS, ATEX
- Condition: New in Box
Typical Applications
The Chesterton 442-30 elastomer set is used for maintenance and repair of 442 split mechanical seals installed in:
- Large centrifugal and split-case pumps
- Vertical turbine pumps
- Horizontal split-case pumps where equipment disassembly is impractical
- Industrial process pumps handling water, coolants, oils, and compatible chemical fluids
- Rotating equipment requiring no-teardown seal service
- Facilities seeking to reduce downtime and maintenance labor costs
Compatibility & Replacements
Compatible With
- Chesterton 442 Split Mechanical Seal (all standard shaft sizes 25–120 mm)
- Chesterton 442M (standard pressure version)
- Chesterton 442HP (high-pressure version)
- Any 442-series seal assembly requiring FKM elastomer replacement
- Horizontal and vertical pump installations with 442-type gland designs
Replaces / Drop-In Replacement For
The Chesterton 698407 is the genuine replacement elastomer set for 442-series seals equipped with FKM material. Verify the elastomer code (should be marked as “-30” or “FKM”) on your existing seal assembly before ordering. Always consult your seal technical manual or Chesterton application engineer if replacing seals from alternate elastomer kits.
Works With
- Chesterton 442 mechanical seal installation and maintenance procedures
- Standard elastomer replacement protocols following Chesterton technical guidance
- ISO-3069-S split seal specifications and design standards
- ASME B73.1 and B73.2 pump seal dimensional standards
- On-site repair workflows requiring no equipment teardown
