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UPPER SEAL O-RING (2 25 78 04)
Part No: 2 25 78 04
Pack of 4
2 25 78 04: UPPER SEAL O-RING (2 25 78 04) – A targeted, high-tolerance sealing ring designed to isolate internal fluid tracking and prevent pressurized leaks near the upper valve chamber block.
2 25 78 04: UPPER SEAL O-RING (2 25 78 04) – A targeted, high-tolerance sealing ring designed to isolate internal fluid tracking and prevent pressurized leaks near the upper valve chamber block.
Key Features
- Precision cross-section geometry creates an airtight fit along high-pressure top boundaries.
- Retains superior sealing memory and structural elasticity across fluctuating pressure loads.
- Resists breakdown from moisture crystallization, air line oils, and chemical line vapors.
- Elastic recovery properties keep the seal seated firmly despite factory temperature shifts.
- Standardized dimensions allow rapid, leak-free reassembly during top block inspection steps.
Technical Specifications
| Manufacturer / Brand | Dellmeco Pump |
| Component Classification | Upper Housing Main Body Closure O-Ring |
| Pump Fitment Compatibility | Top block assembly seals and manifold cap paths |
| Primary Material | High-Performance Nitrile (NBR) / Viton alternate option |
| Function | Blocks high-pressure media lines from bypassing top structural cover interfaces |
| Durometer Hardness | 70 to 75 Shore A compression grade |
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