FAQ

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Oil-Sealed Rotary Vacuum Pumps

  1. Can any oil be used?

    The oil used and the amount of oil differ depending on the pump.

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  2. The pressure will not drop. What should I do?

    There are several possible causes.

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  3. It seems that the pump is not rotating.

    If the pump does not rotate when energized, the pump chamber may be locked.

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  4. There is noise from the pump. What should I do?

    In most cases, internal parts are not working properly due to deterioration or wear.

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  5. The oil level gauge jumped out.

    This phenomenon occurs when the pressure inside the pump increases.

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  6. What is a gas ballast valve?

    This equipment is effective for sucking condensable gases such as water vapor and solvent vapor.

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  7. Oil leaks. What should I do?

    Are there any oil stains or continuous operation at high pressure?

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  8. Smoke comes out of the exhaust vent.

    This is not a malfunction. Oil smoke (oil mist) generated from the oil rotary vacuum pump body.

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  9. How long is the maintenance cycle?

    Overhauls often take place in about one to two years.

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  10. The thermal protector works.

    Press the red button to reset (thermal release).

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  11. How do I determine when to change the oil?

    Change the oil when the performance decreases.

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Diaphragm Type Vacuum Pumps

  1. It seems that the pump is not rotating.

    If the pump is not running, there are several possible causes.

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  2. The pressure will not drop. What should I do?

    If the pressure does not drop, there are several possible causes.

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  3. There is noise from the pump. What should I do?

    If the pump is making noise, there are several possible causes.

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Rocking Piston Type Vacuum Pumps

  1. There is noise from the pump. What should I do?

    If the pump is making noise, there are several possible causes.

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  2. The pressure will not drop. What should I do?

    If the pressure does not drop, there are several possible causes.

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  3. It seems that the pump is not rotating.

    If the pump is not running, there are several possible causes.

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Oil Diffusion Pump

  1. It smells strange.

    Diffusion oil may be oxidized due to atmospheric suction or leak.

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  2. The pressure will not drop. What should I do?

    The diffusion oil may have deteriorated.

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Other

  1. How are KF flanges used?

    KF flanges are mainly used for evacuation systems.

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