
Reliable Oil-Free Compressor Of4-4-Dp Sep4 for Safe Operation. Oil-Free Lubrication: Ensures pure gas output with zero oil contamination for sensitive applications. 12-Month Warranty: Comprehensive coverage for mechanical defects and parts replacement. High Efficiency Valve: Unijet design improves mechanical efficiency and allows more gas compression per stroke. Self-Adjustable Seal: Glass fiber PTFE seal maintains stable pressure and prevents gas leakage. Modular Compact Design: Flexible configuration suitable for various occasions with independent isolation chambers. Durable Materials: Pressure parts made of ductile or gray iron for high heat and impact resistance. Self-Lubricating Rings: Thickened PTFE piston rings extend wear life and improve efficiency. Customization Options: Piston material and sealing layers can be adjusted according to actual conditions.