Overview
The Chesterton 682517 is a 442 split mechanical seal spare part kit engineered for 4.000 shaft diameter equipment. 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. This spare kit is supplied new in box and ready for field repair or replacement operations.
Key Features
- 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
- The high performance split technology allows the 442 to operate from vacuum to high pressures
- Compact design allows for easy installation and a fit advantage on most equipment
- Spare part kit format—no equipment disassembly required
Technical Specifications
- Shaft Diameter: 4.000 in.
- Seal Type: Split Mechanical Seal
- Model: 442
- Part Number: 682517
- Pressure Range: 28″ Hg to 450 Psig (30 bar g)
- Temperature Rating: To 250°F (120°C)
- Installation Method: No adhesives required
- Fastener Style: Captured (non-removable)
- Condition: New in Box
Typical Applications
Applications include cooling tower pumps, raw water pumps, side entry mixers, blenders, processing tanks, fermentors, condensate pumps, process pumps, top entry mixers, bottom entry mixers, and vacuum pumps.
Compatibility & Replacements
Compatible With
- Large pump equipment (8″ to 12″+ shaft diameters)
- Horizontal split case pumps
- Vertical turbine pumps
- Side entry and bottom entry mixers
- Cooling tower and raw water pump systems
- Vacuum pump applications
Replaces / Drop-In Replacement For
- Original Chesterton 442 split seal assemblies requiring field repair
- Spare part kits for existing 442 seal installations
- Verify compatibility with your specific shaft size and equipment configuration before ordering
Works With
- Any equipment using Chesterton 442 split seal design
- Pumps rated for 450 psig (30 bar) maximum pressure
- Process fluids suitable for 120°C maximum operating temperature
- Standard mechanical seal gland configurations with matching bolt patterns
