Vacuum Pump / Blower Chart
Pressure Unit Comparison Chart / Pump Pressure Chart
Elevation Correction Value
|Elevation (m)||Correction Value (kPa)|
The elevation correction value is based on the elevation where the pump is operated and this value is to be subtracted from the degree of vacuum.
When operating under atmospheric pressure in areas of high elevation, there will be a difference in the actual degree of vacuum compared to operating under atmospheric pressure at sea level. Accordingly, the upper limit of the continuous degree of vacuum will be lower, and the pump should be operated within the adjusted range. Operating the pump at a degree of vacuum exceeding this adjusted upper limit will shorten the operating lifespan of the pump and can also result in pump breakdown. For the same reason, the actual ultimate vacuum will also be lower than the value noted in the specifications.
Example: For operation at an elevation of 500 m:
The continuous degree of vacuum of the KRF40A would be in the range of 80 – 5.9 = 74.1 kPa.