ORION High Vacuum KHA Series


1 Designed Pumping Capacity: Theoretical value calculated from cylinder volume. Refer to “Performance Data” for actual flow rate. 

2 Pump can be continuously operated at the maximum ultimate pressure.

3 Operating noise level measured on new pump with ORION recommended motor running under normal conditions.

※ Usable vacuum range: 48 kPa [abs]~ultimate pressure.

※ Maximum operational pressure variation pulse: 13.3kPa[abs]

※ Models with duct able exhaust available (KHA 100A 200A 400A 750A) When ducting off exhaust, allowable back pressure from piping is 25 kPa (This pressure should not beused for any purpose.)

※ Allowable ambient (intake air) conditions: temperature: 0~40°C, humidity: 65 ±20%

※ Due to high compression ratios, condensation is easy to form within high-vacuum pumps. Therefore the following measures should be taken to avoid trouble from rust due to condensation: During a trial run (operation of 5 minutes or less, such as momentary operation or a short test run) if the operating pressure goes above 48kPa[abs], then a dry run of 10 to 15 minutes should be made at a pressure of 48kPa[abs] at the vacuum side of the pump.

※ Allowable variation in power source voltage: ±10% of rated voltage.

※ Install overload protection such as a thermal overload relay. For 3 phase motors, use the current rating on the motor plate as a guideline when setting the relay. For single phase motors, please refer to the chart below for relay setting.

※ See specification sheet for further details.