Single Stage Vacuum Generators:
TDG Series (Metric threads)
Air-Vac specializes in Single Stage Air-Operated Vacuum Generators.
Flexibility of our Single Stage Technology allows us to design and build
to your required specifications.

Straight through vacuum passage allows material to pass directly through the pump with no reduction of vacuum flow. Ideal for transporting or conveying solid materials which is entrained in the vacuum flow of atmosphere air through the pump. Vacuum flow applications also include removal of air or other gasses from a process vessel, chamber, tank or some other closed systems. Vacuum levels to 82%.

When choosing from the chart below:
"M" Generators produce MEDIUM vacuum levels with lower air usage

"A" diameter indicates the size of the straight through vacuum passage.

Full Dimensions

TDG Series

AVRG & AVG Series (Metric threads)
Air-Vac specializes in Single Stage Air-Operated Vacuum Pumps. Quickly and effectively generate vacuum in the following typical applications:

• Removing air or gases from process vessels, tanks or other closed systems.
• Vacuum handling and positioning of small parts.
• Leak testing of various systems.
• Used with vacuum cups in pick-and-place equipment.
• Labeling, packaging and paper feeding machines

• AVRG Series: Vacuum Flow rates to 40 l/min.
• AVG Series:Vacuum Flow rates to 193 1/min.

When choosing from the chart below please consider:
"M" Series produce MEDIUM vacuum levels for low air usage

Full Dimensions

AVRG Series (top) and AVG Series (bottom)

How TD Series Works
Compressed air flows through a small annular opening to generate a high velocity. This air expands into an unobstructed vacuum passage allowing solid material to flow through the pump with no decrease in vacuum flow.




Performance Considerations
for Minimal Air Usage

Vacuum Levels
Depends on the application,
High, Medium, or Low:
• Select an H Model when
maximum vacuum level is
required, 82%
When lower vacuum levels
satisfy the requirement:
• Select an M Model for 50-60%
• Select an L Model (available
upon request)
This results in a substantial reduction in air usage.

Vacuum Flow
Substantial vacuum flow is developed at low operating pressures when using
Models H, M or L.



• Initially the curves are very steep.

• Higher pressures do not increase the vacuum flow but will increase
air usage.

How AV Series Works
Compressed air flows through a small circular opening to generate a high velocity. This air expands, resulting in decreased pressure to provide vacuum levels up to 92%. The vacuum port is perpendicular to the air supply.





Performance Considerations
for Minimal Air Usage

Vacuum Levels
Depends on the application,
High, Medium, or Low:
• Select an H Model when
maximum vacuum level is
required, 92%
When lower vacuum levels
satisfy the requirement:
• Select an M Model for 60-70%
• Select an L Model for (available upon request)
This results in a substantial reduction in air usage.

Vacuum Flow
Substantial vacuum flow is developed at low operating pressures when using
Models H, M or L.



• Initially the curves are very steep.

• Higher pressures do not increase the vacuum flow but will increase
air usage.




Applications

Selecting the minimum vacuum level and lowest operating pressure in the following applications
will minimize air usage:

• Leak Testing
• Labeling Machines
• Paper Feeding Systems
• Printing Presses
• Vacuum Chucks
• Sheet Metal Lifters
• Packaging Machinery
• Encapsulating
• Food Processing Machinery
• Air Sampling
• Dental Equipment
• Gas and Liquid Mixing
• Air Cooling