5/8″ Buna Shaft Seal Model 100 | U109-6B
Product Overview
We supply this reliable Model 100 mechanical seal featuring Buna construction for 5/8″ pump shafts. This seal is engineered for consistent performance in standard pool and spa pump applications.
Key Features and Benefits
- Standard duty 5/8″ shaft design
- Quality Buna elastomer components
- Cost-effective sealing solution
- Durable spring assembly
- Reliable sealing performance
- Industry standard fit
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | U109-6B |
| Model | 100 Series |
| Shaft Size | 5/8 inch |
| Elastomer Type | Buna |
| Face Materials | Carbon/Ceramic |
| Spring Material | Stainless Steel |
| Maximum Temperature | 212°F (100°C) |
| Maximum Pressure | 125 PSI |
| Rotation | Bi-directional |
| Design Type | Standard Duty |
🔧 Parts and fittings for this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Tool, Pool Tool, O-Ring Pick | 134 | 18 in stock | $11.23 | Add to cart |
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Shaft Seal, PS-1900, 5/8" Shaft, Silicon Carbide PS-100 | PS-1900 | 12 in stock | $81.25 | Add to cart |
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Generic Pump Seal PS-3866 | PS-3866 | 69 in stock | $18.17 | Add to cart |
Installation and Maintenance
This seal requires proper installation to ensure optimal performance. The ceramic seat should be installed with even pressure, and sealing faces must be thoroughly cleaned before assembly. Correct shaft preparation and alignment are essential for maximum seal life.
Compatibility
Designed for use with:
- 5/8″ pump shafts
- Standard pool pumps
- Spa applications
- Common pump configurations
Performance Features
Engineered to provide:
- Consistent sealing force
- Standard chemical resistance
- Good wear characteristics
- Smooth operation
- Reliable service life
- Cost-effective performance
Note: Always verify shaft dimensions and seal compatibility with your specific pump model before installation










