diaphragm pump is a perfect match for many brass worm gear set applications in the laboratory and procedures because it is oil-free and whisper quiet, and because it requires so small service. Diaphragms have especially lengthy lives and hermetically seal the drive space from the pumping chamber to safeguard mechanical parts from corrosion. The pumps attain their distinctively high performance from high pumping chamber quantity relative to the minimal dead space. Highly flexible double diaphragms with fabric reinforcement guarantee an extremely long diaphragm life time. The pumps operate unquestionably oil free , nor have any sliding components in the gas path. In normal procedure they are free of abrasion. Besides adding to the long support intervals the lack of abrasion also eliminates most of the particulate impurities frequently generated within scroll or piston pumps. This makes diaphragm pumps a good choice for clean applications.