LEWA developed its first pulseless pump for liquid chromatography in the late 1970s and delivered its first chromatography system in the early 1980s. LEWA is the leader in supplying pumps used for pilot and industrial HPlC, SMB, and lPlC chromatography worldwide. A customer came to us several years ago requesting a lowpressure liquid chromatography system with a flow range of 20 − 2,200 L/h. They also wanted the ability to achieve linear gradient from 1 to 99%. We designed and…