Laboport Diaphragm Vacuum Pump 20 l/min Oil-Free

Laboport series diaphragm pump for vacuum, transfer, evacuation and compression without media contamination. Runs dry — no lubrication, no scheduled maintenance. Quiet enough for continuous bench use.

Technical Specifications

• Flow rate: 20 l/min
• Leak rate: 6 x 10-3 mbar x L/s
• Models N-86 and N-022: Gauge pressure 2.5 and 4 bar — also usable as compressors
• Diaphragm: Patented tension-optimised structured diaphragm system (except N-022)
• Dual-head models: Two-phase linear diaphragms
• Safety: Integrated thermal cutout and fuse
• Lubrication: Not required — oil-free
• Maintenance: Not required

Typical Applications

Vacuum filtration, rotary evaporation, solvent degassing, transfer of corrosive gases and vapours. Oil-free design eliminates any contamination of the pumped medium — essential when working with sensitive samples or analytical lines.

Standard equipment in chemistry, pharmaceutical, biotechnology and quality control laboratories.

Chemical Resistance

Medium-to-high or high chemical resistance depending on model. Before pumping aggressive solvents or vapour mixtures, verify media compatibility against the manufacturer's chemical resistance chart for wetted materials.

Operational Advantages

• Oil-free — no contamination, no residues
• Dry-operable without risk to the pump
• Quiet — no disruption to laboratory workflows
• Extended diaphragm life through tension-optimised design
• Integrated overtemperature protection