Description
Overview:
The Leather Cup Washer is a genuine Wallis replacement for the Wallis Hand Operated Emulsion Sprayer. Made from robust, naturally flexible leather, it forms a tight seal on the pump piston to maintain pressure, reduce bypass, and improve priming and spray consistency. The cup-shaped profile seats neatly in the pump assembly and helps prevent leaks during use with water-based emulsions and similar fluids. This Genuine Part (MPN 052 186) restores lost performance caused by a worn or dried seal and is suitable for routine servicing by tradespeople and DIY users. Fitting a fresh leather cup washer is a straightforward way to extend the life of your sprayer and keep it operating efficiently on site or at home.
Key Features:
- Genuine Wallis part for assured compatibility and quality (MPN 052 186).
- Durable leather construction for a reliable, long-lasting seal.
- Correct cup profile to seat securely on the piston and maintain pressure.
- Helps restore output, priming, and consistent spray pattern.
- Reduces leakage past the pump, improving efficiency and cleanliness.
- Straightforward to install with basic hand tools, no modifications required.
- Suitable for water-based emulsions and light maintenance lubricants.
- Leather beds in during use for an increasingly effective seal.
- Cost-effective maintenance item to extend sprayer service life.
- Designed specifically for Wallis Hand Operated Emulsion Sprayers.
Typical Applications:
Routine maintenance and repair of Wallis hand-operated emulsion sprayers used for applying coatings and fluids. Ideal when the pump loses pressure, output drops, or priming becomes difficult. Useful for refurbishment in workshops, on-site servicing, and preventative maintenance by decorators, facilities teams, grounds staff, and contractors.
Also known as:
Pump cup, leather pump cup, piston cup seal, plunger seal, cup packing, pump leather seal, leather piston cup, spray pump cup, piston leather packing, pump cup seal.
Product Specifications
| L&S Part No. | 052 186 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Wallis |
| Unit of Sale | 1 |
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