Bellows pump LDB

for chemicalswith electric motorstationary

LEWA bellows pulsators are a great choice whenever it comes to separating a substance mixture using extraction. They are used to drive extraction columns (sieve tray or packed columns) because their adjustable amplitude and frequency enables them to deliver perfect substance mixture separation results. LEWA bellows pulsators have a pulsating volume from 200 cm3 to 21 land a maximum column height of 18 m. LEWA Bellows Pulsators Simple and economical separation of substance mixtures. The chemical and pharmaceutical industry in particular require systems for separating substance mixtures. The technology and costs associated with this application mean that it is often practical to rely on extraction rather than rectification. This is exactly where the LEWA bellows pulsator comes in. A pulsating movement drives an extraction column that separates the substance mixture. The bellows pulsator is the perfect system for generating this oscillating liquid movement in a vertical vessel. Movement in almost total harmony The pulsation characteristic exerted by the bellows on the liquid column is a movement that works in almost total harmony. This enables low acceleration forces and, therefore, low compressive stress on the bellows. As a result, the entire system is protected and maintenance times kept to a minimum.