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) |
Download |
|---|---|---|---|---|---|
| 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 |