These diaphragm vacuum pumps are whisper-quiet, low-vibration, and provide high flow rates at working vacuum levels for exceptional performance. Models are available in aluminum-FFM versions for standard, non-evaporative, non-corrosive applications, while the fluropolymer ones have a flow path of highly corrosion-resistant materials for the rigors of the Chemistry lab. Multi-stage Chemistry models have an integrated gas ballast for superior performance with condensable vapors. All models have typical service intervals in excess of 15,000 operating hours. 120V versions are supplied with a US plug, 230V versions are supplied with a Continental European plug.

Select a 79104-series pump with chemical-resistant wetted parts for highly corrosive applications. Models with a gas ballast valve are ideal when working with condensable gases.