The Model-1101 compressor from Thomas Products Div. (formerly Rietschle Thomas), Sheboygan, Wis., uses a rolling diaphragm that combines the best features of both rotary and diaphragm pumps. The Model ...
A new radial compressor from Dynaflo Inc., Birdsboro, Pa. (www.dynaflopumps.com), overcomes many of the pitfalls of diaphragm-type vacuum pumps and compressors — including flow pulsation, noise, ...