The KNF N922STE (22361272) is an oil-free diaphragm gas pump designed for reliable transfer and compression of gases and vapors, as well as vacuum generation. The N922STE configuration is suitable for demanding industrial and marine-related gas-handling applications where clean, contamination-free operation is required.
Key Features
- Oil-free diaphragm pump for clean gas transfer.
- Designed for gas and vapor transfer, compression and vacuum generation.
- Maximum flow rate of approximately 21 l/min at 50 Hz and 24 l/min at 60 Hz.
- Ultimate vacuum of up to 110 mbar absolute.
- Maximum permissible operating pressure of 4 bar continuous and 6 bar intermittent.
- PTFE diaphragm and stainless-steel valve options provide good chemical resistance.
- Stainless-steel pump head construction available.
- AC motor configuration.
- Designed for reliable, low-contamination operation with relatively low maintenance requirements.
Typical Applications
- Marine gas-handling systems
- Exhaust and emission monitoring systems
- Gas analysis equipment
- Environmental monitoring systems
- Industrial gas sampling
- Analytical instrumentation
- Vacuum generation and gas compression
- Chemical and process equipment




