The Graco 255695 Kit, Complete Seal, PTFE, L500 is a comprehensive seal rebuild kit designed for maintaining and restoring the performance of Graco L500 lower pump assemblies. This kit contains the essential PTFE sealing components required to reduce leakage, maintain pressure integrity, and extend pump service life in demanding industrial applications.
Compatible Machines
The Graco 255695 seal kit is compatible with the following Graco lower pump assemblies:
- L500CS (Carbon Steel Severe Duty Lower Pump)
- L500CM (Carbon Steel MaxLife Lower Pump)
- L500SS (Stainless Steel Severe Duty Lower Pump)
- L500SM (Stainless Steel MaxLife Lower Pump)
- Check-Mate 500cc Pump Systems utilizing L500 lowers
- Dura-Flo 500cc Pump Systems utilizing L500 lowers
- Bulk Material Supply Systems equipped with L500 pumps
- Industrial Adhesive Transfer Systems using L500 lower assemblies
- Extrusion and Sealant Supply Equipment configured with L500 lowers
Kit Features
| Part Number | 255695 |
| Description | Complete Seal Kit, PTFE, L500 |
| Pump Size | 500cc (L500) |
| Seal Material | PTFE (Polytetrafluoroethylene) |
| Application | Lower Pump Rebuild and Maintenance |
| Compatible Pump Series | Check-Mate and Dura-Flo 500cc Pumps |
Benefits of PTFE Seals
- Excellent resistance to aggressive chemicals and fluids.
- Helps maintain reliable sealing performance under demanding operating conditions.
- Reduces fluid leakage and improves pump efficiency.
- Supports longer maintenance intervals and reduced downtime.
- Ideal for industrial material transfer and dispensing applications.
Typical Applications
This seal kit is commonly used during scheduled maintenance or pump overhauls on L500 lower pump assemblies found in industrial fluid handling systems. Replacing worn seals helps restore proper pump operation and maintain consistent performance when transferring adhesives, sealants, coatings, and other industrial materials.
What's Included in the Kit
- PTFE V-packings
- Piston sealing components
- Valve sealing components
- Packing glands
- Acetal sealing elements
- O-rings and related sealing hardware
Frequently Asked Questions
The Graco 255695 kit is a complete PTFE seal rebuild kit used to service and restore L500 lower pump assemblies by replacing worn sealing components.
This kit is designed for L500CS, L500CM, L500SS, and L500SM lower pump assemblies, including compatible Check-Mate and Dura-Flo 500cc systems.
PTFE seals offer excellent chemical resistance, low friction, and long service life, making them suitable for demanding industrial pumping applications.
The kit should be installed during routine pump maintenance, performance restoration, or whenever seal wear causes leakage, pressure loss, or reduced efficiency.
