What is the purpose of the gas ballast on a vacuum pump?
Used with an oil sealed vacuum pump, a gas ballast reduces the amount of vapor condensation — and therefore contamination — of the pump’s sealing-oil. The gas stream evacuated from a vacuum chamber contains water vapor, solvent vapor, and other potential contaminants.
What is the gas ballast for on the harvest right vacuum pump?
The pump has a gas ballast feature that makes it so water does not stay in the oil. Because of this, the oil in the pump will be pristine and clear, even after 30 or more batches. You simply won’t need to change the oil until you have run 20 or more batches.
Should the gas ballast valve be open or closed?
Opening the gas ballast valve will prevent the vacuum pump from reaching its ultimate vacuum, so if a low pressure is needed towards the end of the cycle, the gas ballast valve can be closed once the water vapor has been pumped away.
Should the ballast be open or closed on a vacuum pump?
When the gas ballast valve is opened it will prevent the vacuum pump from fully achieving the vacuum. Once the cycle has neared its end and a lower pressure is needed, the gas ballast can then be closed once all of the water has been pumped from the system.
What is the vapor that comes out of a vacuum pump?
It is not smoke. It is mechanical pump oil vapor. 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 resevoir, some of that oil is vaporized when a lot of air is moving through it.
When should you open and close the ballast on a vacuum pump?
Why does my vacuum pump smoke?
The air pumped into the chamber moves through the oil reservoir. When it comes in contact with the oil, some of it is vaporized, especially when there is excess air moving through the reservoir. The pump will try to provide enough pressure into the chamber. You will notice more vapor/smoke when there is more pressure.
What is a gas ballast?
6 Gas ballast. Means through which air or another non-condensing gas is admitted into a vacuum pump are referred to as gas ballast.
Why is my harvest right vacuum pump smoking?
When it comes in contact with the oil, some of it is vaporized, especially when there is excess air moving through the reservoir. The pump will try to provide enough pressure into the chamber. You will notice more vapor/smoke when there is more pressure.
Why does vacuum pump smoke?
What is a gas ballast vacuum pump?
HISTORY AND OPERATION Originally developed by Wolfgang Gaede in 1935, gas ballast was a significant addition to mechanical, oil-sealed vacuum pumps. When used in mechanical, oil-sealed vacuum pumps, the gas ballast allows the pumping of vapours without them condensing and thus contaminating the pump’s sealing-oil.
What is a gas ballast used for?
Gas ballasting, which is associated with oil-sealed rotary vane and dry scroll pumps, is frequently employed in freeze-drying, rotary evaporation, distillation and gel drying. The video below highlights the function of rotary vane vacuum pumps with gas ballast:
Are there any hazards associated with gas ballasting?
This means that depending on their content and/or concentration, they may pose a hazard. Gas ballasting, which is associated with oil-sealed rotary vane and dry scroll pumps, is frequently employed in freeze-drying, rotary evaporation, distillation and gel drying. The video below highlights the function of rotary vane vacuum pumps with gas ballast: