No-Clog, Air Venturi Vacuum Pumps – Create a Vacuum Using Compressed Air
Filter Free Design Prevents Clogging, Easily Passes Liquids and Contaminants

Use Air Venturi Vacuum Pumps for Vacuum Chucks, Solid or Liquid Materials Transfer, Custom Hold Down Fixturing , and More

Air Venturi Vacuum Pumps – Create Vacuum w/ Shop Air

Air Venturi Vacuum Pumps are used for Vacuum Chuck workholding applications, solid or liquid materials transfer, and custom hold down fixturing and clamping applications. Venturi Vacuums are also used as an AC Vacuum Pump to evacuate air conditioning systems.

Air Venturi Vacuum Pumps creates a vacuum by supplying compressed air to the supply port. When air pressure is applied, the Air Venturi creates a vacuum at one end. The air is then exhausted out the other end.

The no-clog, straight through, filter free design prevents clogging and easily passes materials, dirt, liquids, and contaminants.

Available in Solid Anodized Aluminum and PTFE (Teflon); both materials allow for use in harsh, dirty environments and clean rooms.

  • Maximum vacuum generated is 22″ HG – 26″ HG (10.8 psi – 12.8 psi).
  • The Vacuum may be adjusted from 0″ HG to the maximum vacuum by loosening the locking nut and turning the exhaust end of the vacuum.
  • Only 70-80 psi air pressure is required to obtain the maximum vacuum.

A Pneumatic, No-Clog Air Exhaust Muffler/Silencer can be used to reduce the noise level of the Air Venturi Vacuum. Tubing or hose may also be connected to the outlet port to redirect the exhaust air.

View additional details: Workholding, Fixturing, and Hold Down Force Calculation Information, and Vacuum Flow Data and Usage Tables.

View options and pricing.

NameMaterialInlet & OutletAir SupplyBore Dia.Part No.Price (ea.)Buy
10-32 Air Venturi VacuumPTFE10-32 UN10-32 UN0.09 in. (2.3 mm)11108$87.00

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1/16" NPT Air Venturi VacuumAluminum1/16" NPT1/16" NPT0.09 in. (2.3 mm)11072$87.00

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1/16" NPT Air Venturi VacuumPTFE1/16" NPT1/16" NPT0.09 in. (2.3 mm)11082$87.00

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1/8" NPT Air Venturi VacuumAluminum1/8" NPT1/8" NPT0.14 in. (3.5 mm)11073$91.00

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1/4" Air Venturi VacuumAluminum1/4" NPT1/4" NPT0.20 in. (5 mm)10033$98.00

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1/4" NPT Air Venturi VacuumPTFE1/4" NPT1/4" NPT0.20 in. (5 mm)11092$98.00

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3/8" NPT Air Venturi VacuumAluminum3/8" NPT3/8" NPT.265 in. (6.7 mm)11103$108.00

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3/8" NPT Air Venturi VacuumAluminum3/8" NPT3/8" NPT.375 in. (9.5 mm)10186$108.00

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1/8" NPT Air Venturi VacuumPTFE1/8" NPT1/8" NPT0.14 in. (3.5 mm)11087$91.00

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Hold Down Force / Workholding / Fixturing Calculations for Air Venturi Vacuums

Hold down force is calculated simply by: Force = (area of part being held in sq. in.) x (vacuum in psi)

For example:
If you are using a 3″ round suction cup to hold a part the force applied to the part is:
7.069 x 11.8 psi = 83 lbs. of holding force (For reference: 24″ HG=11.8 psi)
Where 7.069 is the area of the circle (πr2) = 3.14159 x 1.52

Remember to allow for a safety factor.

The typical supply air consumption rates and vacuum flow rates are listed in the tables below.

Air Venturi Vacuum Generator Pumps
Air Usage and Vacuum Flow Data at Maximum Vacuum
Air Venturi Vacuum Material Part No. Vacuum Flow (SCFM) at Maximum Vacuum Amount of Supply Air Used (SCFM) at Maximum Vacuum Diameter of Straight Through vacuum Flow Path (Bore Diameter)
10-32  Vacuum Anodized Aluminum 11108 0.8 0.8 0.09" (2.3 mm)
1/16" NPT Vacuum Anodized Aluminum 11072 0.8 0.8 0.09" (2.3 mm)
1/16" NPT Vacuum PTFE (Teflon) 11082 0.8 0.8 0.09" (2.3 mm)
1/8" NPT Vacuum  Anodized Aluminum 11073 2.0 2.2 0.14" (3.5 mm)
1/8" NPT Vacuum PTFE (Teflon) 11087 1.8 2.0 0.14" (3.5 mm)
1/4" NPT Vacuum  Anodized Aluminum 10033 4.5 5.0 0.20" (5 mm)
1/4" NPT Vacuum PTFE (Teflon) 11092 4.0 4.0 0.20" (5 mm)
3/8" NPT Vacuum Anodized Aluminum 11103 7.0 8.0 0.265" (6.7 mm)
3/8" NPT Vacuum Anodized Aluminum 10186 15.0 15.0 0.375" (9.5 mm)
Copyright © 2021, 2L inc., www.2Linc.com
Air Venturi Vacuum Generators
Air Usage & Vacuum flow at 80psi for Reduced Vacuum Levels
Part No Description At 24″ HG Vacuum At 20″ HG Vacuum At 15″ HG Vacuum At 10″ HG Vacuum
Vacuum Flow (SCFM) Amt. of Air Supply Used (SCFM) Vacuum Flow (SCFM) Amt. of Supply Air Used (SCFM) Vacuum Flow (SCFM) Amt. of Supply Air Used (SCFM) Vacuum Flow (SCFM) Amt. of Supply Air Used (SCFM)
11108 10-32 Vacuum
Anodized Aluminum
0.8 0.8 0.8 0.6 0.8 0.4 0.6 0.2
11072 1/16″ NPT Vacuum
Anodized Aluminum
0.8 0.8 0.8 0.6 0.8 0.4 0.6 0.2
11082 1/16″ NPT Vacuum
PTFE (Teflon)
0.8 0.8 0.8 0.6 0.8 0.4 0.6 0.3
11073 1/8″ NPT Vacuum
Anodized Aluminum
1.9 2.2 2.05 1.5 2.0 1.0 1.8 0.7
11087 1/8″ NPT Vacuum
PTFE (Teflon)
1.8 2.0 1.7 1.7 1.7 1.3 1.5 1.1
10033 1/4″ NPT Vacuum
Anodized Aluminum
4.5 5.0 4.5 3.0 4.5 2.0 4.0 2.0
11092 1/4″ NPT Vacuum
PTFE (Teflon)
4.0 4.0 4.0 3.0 3.5 2.5 3.0 2.0
11103 3/8″ NPT Vacuum
Anodized Aluminum
7.0 8.0 7.0 6.0 7.0 4.0 5.0 3.0
10186 3/8″ NPT Vacuum
Anodized Aluminum
15.0 15.0 18.0 12.0 18.0 7.0 16.0 4.0
Copyright © 2021, 2L inc., www.2Linc.com