Graco 105522 U-Cup Seal
The Graco 105522 U-Cup Seal ensures a tight, leak-free seal for consistent spray performance in Graco airless sprayers.
- Durable polyurethane construction
- Prevents fluid blow-by and pressure loss
- Fits multiple Graco models like 190 Classic, 395 ST Pro, and LineLazer 3400
Detailed Overview of Graco 105522 U-Cup Seal
The Graco 105522 U-Cup Seal is a high-performance polyurethane piston seal designed for use in airless paint sprayers and pump assemblies. It ensures tight sealing between the piston and cylinder, preventing fluid leakage and maintaining consistent spray pressure. This seal is a critical part of the fluid section in several Graco airless sprayers and delivers long-lasting durability under demanding use.
Compatible Machines
Below is a list of Graco machines and sprayer models that use the 105522 U-Cup Seal as part of their displacement pump or fluid section:
- Graco 190 Classic
- Graco 290 Classic
- Graco 395 ST Pro
- Graco 450 ST
- Graco 495 ST Pro
- Graco EM 490
- Graco LineLazer 3400
- Graco FieldLazer S100
- Graco FieldLazer S200
- Graco Nova SP
- Graco Super Nova SP
- Graco Zip-Spray 1900 Plus
Key Features
- Constructed from durable polyurethane for long life and resistance to wear.
- Provides an excellent dynamic seal between piston rod and cylinder.
- Prevents fluid blow-by, ensuring stable and efficient spray pressure.
- OEM-grade component designed for precise fit and reliable performance.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 105522 |
| Material | Polyurethane |
| Type | U-Cup Seal |
| Compatibility | Fits various Graco airless paint sprayers (see list above) |
| Common Use | Displacement pump / fluid section sealing |
Replacement Information
The Graco 105522 U-Cup Seal often pairs with backup washer part 186-652 (replaced by 196-759) in pump rebuild kits. Always confirm compatibility using your sprayer’s parts manual to ensure correct installation and performance.
Frequently Asked Questions
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