KNF's double diaphragm vacuum pumps and compressors
provide greatly increased safety when pumping hazardous or expensive
gases. They are especially suitable where
safety and gas tightness are essential, e.g., with toxic, radioactive
or rare gases. They consist of two diaphragms,
a working diaphragm, and an additional backup diaphragm beneath,
that is not exposed to the pumped medium or dynamic stresses.
The volume between the diaphragms can be monitored for alarm
purposes. These pumps are available in a variety of motors, materials
and configurations. Contact KNF for further details.