Does anyone know of a manufacturer that offers a blower or centrifugal compressor that can provide a flow rate of around 120 l/min, at 100 cm water discharge pressure, for ambient air? Any leads would be greatly appreciated.
10 years ago in school i made a small lab unit that included a membrane pump for cirkulating gas (mostly N2 with some organic compounds) in a closed loop of pipe. This worked fine. It was a small standard membrane pump.
I agree with Morten that a standard diaphragm pump is the way to go with such a small volume. If smooth flow is required you could use a small tank to buffer the flow.