Oil Free Diaphragm Type High Vacuum Pump (Electric, 0-20 lpm, 0.5mbar)

An Oil-Free Diaphragm Type High Vacuum Pump is a dry vacuum pump that operates using a reciprocating diaphragm mechanism instead of oil-based rotary systems. These pumps are designed to create and maintain vacuum levels without any lubricating oil in the pumping chamber, making them exceptionally clean and maintenance-friendly. They typically consist of: A flexible diaphragm driven by an eccentric crankshaft Valves to control airflow Multiple stages (for high vacuum performance) These pumps are ideal for applications requiring a clean vacuum environment free from oil vapors and contaminants. Key Features: 100% oil-free operation — no contamination risk Low maintenance — no oil changes, less wear Compact and lightweight Quiet and vibration-free operation Corrosion-resistant components (PTFE-coated options available) Can achieve vacuum levels typically up to 1–10 mbar (and down to 0.1 mbar in advanced models) Usage / Applications: Oil-free diaphragm pumps are widely used across scientific, medical, industrial, and research fields. Their clean operation makes them ideal where purity and low maintenance are priorities. Typical Applications: Laboratories: Filtration, degassing, and evaporation Rotary evaporators Vacuum drying and distillation Gel dryers Freeze-drying (in pre-vacuum stage) Vacuum ovens Analytical Instruments: Gas chromatography (GC) Mass spectrometry (as backing pumps) FTIR and other spectroscopy equipment Medical & Pharmaceutical: Vacuum suction in dental and surgical devices Sterilization systems Sample preparation Industrial & Electronics: Vacuum packaging Leak testing Semiconductor manufacturing (when ultra-clean vacuum is required) Environmental & Chemical Testing: Air and gas sampling Chemical vapor capture Advantages Over Oil-Sealed Pumps: No oil backstreaming into the system Environmentally friendly Cost-effective in the long term Safer in cleanroom and biohazard environments