VP833 – 8 CFM Vacuum Pump

VP833 Vacuum Pump v16

VP833 Vacuum Pumps | v03

• How often do I need to change the oil?

  • Empty or replace oil at the end of every job. Don’t leave old oil in the machine. Store the pump and oil in dry clean areas for longest life. Oil can lose its sealing properties if left uncovered. Keep oil sealed until it’s ready for use. Change oil while pulling a vacuum if the oil is dirty and your vacuum slows down.  Oil can be changed while pump is in use without losing a vacuum.

• Do you have replacement parts?

  • Yes.  Call Fieldpiece at 714-634-1844 for more information.

• Can I pull a vacuum in the severe cold?

  • 1. Open an unused input port to ambient for a few seconds until the pump is running.
    2. Warm the pump in your truck/home by letting it sit in a warm environment. You can warm the oil in your truck/home before adding it to the pump.

• Why is my oil milky looking?

  • Excessive moisture is present in the oil indicating that the oil needs to be replaced.

• Do I have to use Fieldpiece oil?

  • Fieldpiece oil is optimized for its pump – has a specific viscosity for maximum performance, you can use others but not recommended.

• What is the gas ballast and when do I use it?

  • Much of the air and moisture in a system are removed before reaching 3000 microns. For wet systems, you should open the gas ballast during this initial pull down. Doing so helps the pump run smoothly and keeps the oil in good condition for when you need it most – towards the end of the evacuation. At about 3000 microns, when the sound of the pump quiets down, the gas ballast should be closed so that a deep vacuum can be achieved.

• Why is there smoke present?

  • A common complaint we hear about oil sealed rotary vane pumps is that they create a lot of “smoke” from the exhaust. What is commonly reported as “smoke” is often actually oil mist vapor.

    The oil in your rotary vane pump both lubricates the moving parts and seals the fine clearances in the pump. Oil has the benefit of stopping air leakages inside of the pump, however the rigorous oil flow during operation creates an oil mist on the exhaust side of the pump.

    It is normal for the pump to emit vapor when pumping on a chamber from atmosphere. Since all the air that is removed from the chamber by the pump moves through the oil in the oil reservoir some of that oil is vaporized when a lot of air is moving through it. When the pressure in the chamber is reduced to a few hundred torr, the oil vapor or “mist” should reduce dramatically.

• What are the sizes of the ports?

  • When ports are facing you, from left to right are ¼”, ½”, 3/8”, 3/8“

• Can I pull out nitrogen using the pump?

  • Yes, but we do not advise using the pump if more than 15 PSI of pressure is present at pump.

• How do I know that my vacuum pump can pull down sufficiently?

  • Perform this test to ensure VP67/VP87/VP833/VPX7 and your micron gauge are working properly.

    1. Connect your vacuum gauge directly to a port on VP67/VP87/VP833/VPX7 .
    2. Seal the 3 other ports.
    3. Ensure the gas ballast is closed.
    4. Turn on VP67/VP87/VP833/VPX7 to create a vacuum at your gauge.

    If your gauge measures below 200 microns within 1 minute, you know VP67/VP87/VP833/VPX7 and your micron gauge are working correctly. If your gauge does not reach 200 microns, there is a problem with your gauge, VP67/VP87/VP833/VPX7 , or both.