Graco 221038 Conversion Kit
The Graco 221038 Conversion Kit provides EPDM seals for safe use with ketone-based solvents, preventing damage to standard seals.
- EPDM solvent-resistant seals
- Ideal for acetone, MEK and similar chemicals
- Used on compatible Graco air-motor driven pumps
- Helps reduce leakage and seal failure
Graco 221038 Conversion Kit – EPDM Seal Upgrade for Ketone Solvent Use
Compatibility Notice
The Graco 221038 Conversion Kit is designed for Graco air-motor driven pumps that are approved for EPDM seal conversion for use with ketone-based solvents. Graco does not publish a universal, fixed machine list for this kit because compatibility depends on the specific air motor and pump model. Always verify your pump’s manual or parts diagram before installation.
The Graco 221038 Conversion Kit is an official Graco upgrade kit used to replace standard Viton or nitrile seals with EPDM seals. This conversion is required when pumping ketone-based solvents such as acetone or MEK, which can rapidly degrade standard seals and cause premature pump failure.
Purpose of the Conversion Kit
- Converts standard seals to EPDM chemical-resistant seals.
- Allows safe pumping of ketone solvents.
- Prevents seal swelling, leakage, and internal chemical damage.
- Helps maintain proper pump performance in aggressive solvent applications.
Key Features
| Feature | Details |
|---|---|
| Kit Type | Seal Conversion Kit |
| Seal Material | EPDM (Ethylene Propylene Diene Monomer) |
| Chemical Compatibility | Ketone-based solvents (Acetone, MEK, etc.) |
| Primary Use | Air-motor driven Graco pumps approved for EPDM conversion |
| Function | Prevents chemical attack on standard seals |
When Do You Need This Kit?
- When switching from standard coatings to ketone-based solvents.
- When existing seals show signs of chemical swelling or leakage.
- For industrial cleaning, flushing, or solvent transfer operations.
- When required by the pump’s chemical compatibility guidelines.
Installation Notes
- Installation should be performed by trained service personnel.
- All old seals must be completely removed before fitting EPDM seals.
- Follow the air-motor service manual for correct torque and assembly order.
- After installation, perform a low-pressure test run before full operation.
Frequently Asked Questions
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