Overview
The Chesterton 682242 is a 442 split mechanical seal engineered for 1.750″ shaft applications in industrial pump systems. The flagship product of the world leader in split seal technology, this seal combines proven reliability with practical installation advantages. The 442 split mechanical seal is ideal for equipment that is difficult and time-consuming to disassemble, such as large pumps, vertical pumps, and horizontal split case pumps. The high performance split technology allows the 442 to operate from vacuum to high pressures.
Key Features
- Compact design allows for easy installation and a fit advantage on most equipment
- Ball-and-socket O-Rings provide a quick and easy seal without the use of adhesives
- Captive screws cannot fall out, making installation straightforward and reliable
- Split, low-cost repair kits reduce ongoing maintenance costs
- Proven, compact design can be used in a wide variety of equipment and process fluids
- The 442 split seal pressure capability has been increased to 450 psig (30 bar g)
Technical Specifications
The Chesterton 682242 is manufactured to exacting standards by the A.W. Chesterton Company, a firm with over 130 years of seal manufacturing expertise. Available in diameters of 20 mm to 610 mm (0.75″ to 24.00″), the 442 series accommodates a wide range of pump sizes and shaft configurations.
Typical Applications
This mechanical seal is suited for:
- Centrifugal pump installations
- Split case pump maintenance and replacement
- Vertical and horizontal pump systems
- Water and process fluid handling applications
- Equipment retrofit and upgrade projects where pump disassembly is impractical
Compatibility & Replacements
Compatible With
- Centrifugal pumps (all orientations)
- Split case horizontal and vertical pumps
- Large rotating equipment with 1.750″ shafts
- Standard pump gland and stuffing box configurations
- Vacuum to 450 psig (30 bar g) operating pressure
Replaces / Drop-In Replacement For
The Chesterton 682242 is a direct replacement for existing 442 split mechanical seals rated for 1.750″ shaft applications. Verify exact seal dimensions and gland compatibility with your equipment before ordering.
Works With
- Standard pump repair and maintenance procedures
- Chesterton repair and rebuild kits (sold separately)
- OEM and aftermarket pump assemblies
- Chesterton technical support and installation guidance
