KNF pumps in the UN84 range transfer compress and evacuate 100% oil-free. In operation they are gas-tight, and maintenance free. Handling air, gases, and vapours at temperatures between + 5 °C + 40 °C. For maximum permissible operating pressure, ultimate vacuum, see section 9 of Operating Manual. The pumps must not be used in areas where there is a danger of explosion. Before pumping a medium, the compatibility of materials of pump head, diaphragm and valves with the medium must be checked (for pump materials: see section 9 in Operating manual).

KNF pumps in the N 84 range must not be used for liquids. When the pump is operating the following ambient conditions must be maintained at Ambient temperature during operation: between + 5 °C + 40 °C. The pumps must be protected from the effects of dust and water. During operation an adequate supply of air for cooling must be provided. The pumps must not be used in areas where there is a danger of explosion. For complete directions on how to use this pump see the .pdf to the left at Downloads.