Plunger Seal — Shimadzu (GFP)
A high-performance GFP (Glass-Filled PTFE) plunger seal designed for Shimadzu HPLC pumps, providing a reliable high-pressure seal to maintain consistent flow and prevent solvent leakage.
- Product Name
- Plunger Seal – Shimadzu (GFP)
- Part Number
- 228-35146
- OEM Part Number
- Shimadzu 228-35146-00
- Material
- Glass-Filled PTFE (GFP)
- Compatible Systems
- Shimadzu LC-20AD/AB, LC-2030, i-Series
- Function
- High-Pressure Plunger Seal
The Shimadzu GFP Plunger Seal (228-35146) is a precision-engineered replacement seal manufactured from Glass-Filled PTFE (GFP) for use in Shimadzu HPLC pump heads. Installed around the sapphire pump plunger, it forms the critical high-pressure sliding seal that prevents mobile phase leakage while ensuring stable pump performance. Designed for compatibility with Shimadzu LC-20AD/AB, LC-2030, and i-Series pumps, the seal offers excellent wear resistance, low friction, and outstanding chemical compatibility with common HPLC solvents. Routine replacement during preventive maintenance helps eliminate pump leaks, pressure fluctuations, and inconsistent flow, ensuring reliable chromatographic performance. Key Features - OEM-compatible replacement seal - Glass-Filled PTFE (GFP) construction - High-pressure sealing performance - Excellent chemical resistance - Low-friction operation - High wear resistance - Prevents solvent leakage - Maintains stable pump pressure - Easy installation - Recommended for annual preventive maintenance Applications - Shimadzu HPLC pump maintenance - Annual preventive maintenance - Pump head servicing - Plunger seal replacement - Leak prevention - Flow stability improvement - Pharmaceutical laboratories - Environmental testing laboratories - Chemical laboratories - Research & Quality Control laboratories