KNF corrosion-resistant diaphragm process pumps (photo) are designed for sampling, transferring, evacuating or compressing aggressive gases in a wide range of challenging industrial applications. These electrically operated and oil-free pumps boast reliable and contamination-free performance. The design combines high-grade steels and solid PTFE (or other inert materials for the wetted head portion) with a laminated layer of corrosion-resistant material over the diaphragm. Such a combination imparts the desired resistance to corrosion and contributes mechanical and thermal resistance, high tensile strength and resistance to pressure, which add up to increased pump flexibility and longer service life. Specialized versions include heated-head and heat-resistant pumps for exhaust emission and stack-gas sampling; explosion-proof motors; and secondary safety diaphragms for handling rare and dangerous gases. Flowrates up to 300 L/min (10 scfm), maximum vacuums up to 29.8 in. Hg, and maximum pressures up to 176 psig are possible. — KNF Neuberger, Inc., Trenton, N.J.
Aggressive gases are no problem for these diaphragm pumps
| By Chemical Engineering