Double diaphragm pumps

KNF double diaphragm pumps offer a high level of performance and greatly enhance safety, especially when working with dangerous, rare and valuable gases. A second diaphragm is located underneath the working diaphragm. The safety diaphragm has a significantly longer service life than the working diaphragm, thus ensuring that no gas can escape into the environment even if the working diaphragm ruptures.

Model Flow rate at
atm. pressure
(l/min)
Vacuum
(mbar absolute)
Pressure
(bar relative)
Pressure
(psig)
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N 143 SP.12 E 23 120 3 43.5
N 186.3 SP.12 E 23 15 0.5 7.3
N 186.1.2 SP.12 E 42 120 3 43.5
N 0150 SP.12 E 130 120 1 14.5
N 0150.3 SP.12 E 130 25 0.5 7.3
N 1200 SP.12 130 150 3 43.5
N 1400.1.2 SP.12 E 250 150 3 43.5