PUMPS, VALVES AND IMPELLERS REFURBISHMENT
Refurbishing pumps, valves, and impellers using epoxy compounds is a cost-effective way to combat wear, corrosion, and erosion—especially in harsh industrial environments like mining, wastewater, and chemical processing. Here is a detailed breakdown of key points to consider during the refurbishing process:
1. Inspection and Damage Assessment
- Identify areas affected by erosion, corrosion, cavitation, or chemical attack.
- Measure wear profiles and assess whether rebuilding is feasible.
2. Surface Preparation
- Clean thoroughly to remove rust, scale, oil, and contaminants.
- Grit blast or mechanically abrade to achieve a rough surface profile for better adhesion.
- Mask off adjacent machined surfaces to avoid epoxy overflow.
3. Selection of Epoxy Products
Recommended Epoxy Types – Key Features
- Ceramic-filled epoxy, high abrasion resistance, rebuild worn profiles, superior protection.
- Metal repair epoxy, machinable, reduced down time, cost effective.
- Epoxy gelcoat, superior surface protection.
4. Application of Epoxy
- Apply epoxy compound using a brush or trowel on applications, depending on the product.
- For impellers, rebuild the profile and smooth out for optimal flow.
5. Curing
- Allow curing at ambient temperature unless specified otherwise.
6. Finishing and Testing
- Machine or polish if required (only with machinable epoxies).
- Document refurbishing for future maintenance planning.
BENEFITS OF EPOXY REFURBISHMENT
- Extends equipment life without the need for full replacement.
- Improves efficiency.
- Reduces downtime and maintenance costs.
- Provides resistance to abrasion, and cavitation.
SUGGESTED PRODUCTS FOR PUMPS – VALVES – IMPELLERS REFURBISHMENT
ELI-FIL FR983
Type: Epoxy Repair Compound
Key Features: Steel-filled paste, high strength, excellent wear resistance, heat resistant
ELI-COTE FR985
Type: Epoxy Gel Coat
Key Features: Quick setting, abrasion resistant, good chemical and heat resistance
ELI-COTE FR985/LT
Type: Epoxy Gel Coat (Low Temp)
Key Features: Excellent surface finish, chemical resistant, suitable for lower temperatures
ELI-COTE FR1008D1LV
Type: Epoxy Mortar
Key Features: Alumina grit-filled, smooth application, high wear resistance
ELI-COTE FR1011
Type: Ceramic-Filled Epoxy Gel Coat
Key Features: Outstanding abrasion resistance, good brushability, excellent chemical resistance
ELI-COTE FR1013
Type: Abrasion Resistant
Key Features: Designed for the protection on areas subject to high wear
ELI-FIL FR 912
Type: Epoxy Repair Compound
Key Features: General purpose Epoxy repair compounds, steel filled paste, can be machined, drilled and tapped
ELI-FIL FR913
Type: Epoxy Repair Compound
Key Features: Quick set Epoxy repair compound, steel-filled paste.
These products are designed to repair, restore and protect pump surfaces from wear, corrosion, and chemical attack – especially in mining and industrial environments. You can explore more on Elite Chemical Industries’ product page for pumps. Click here
