In-Line E-Vac® Low Vacuum with Muffler (Porous)

EXAIR's In-Line E-Vac® with Muffler includes sound reducing mufflers that are designed to significantly lower noise without affecting the E-Vac's
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EXAIR's In-Line E-Vac® with Muffler includes sound reducing mufflers that are designed to significantly lower noise without affecting the E-Vac's performance. The Straight Through Muffler is recommended where particulates are present since it will not accumulate debris that can erode performance. Straight Through Mufflers offer the best sound level reduction (up to 26 dBA). In-Line E-Vacs are engineered to produce instantaneous vacuum at the point-of-use. These single stage, cylindrical units are compact and easy to mount. They can be held in place by threading them directly onto a compressed air line or with the use of a mounting clip. Low vacuum units up to 21" Hg (71 kPa) with vacuum flows up to 18.5 SCFM (524 SLPM) are typically used for porous materials such as cardboard, textiles or delicate materials. There are 7 In-Line models that vary by flow and vacuum level. The Standard Muffler has a closed end and is suitable for applications that are free of dust and debris.

Applications

  • Pick and place of parts and equipment
  • Bag/package opening
  • Label placement
  • Vacuum forming
  • Mold evacuation
  • Vacuum filling
  • Leak testing
  • Evacuate containers
  • Clamping and chucking
  • Paper alignment and feed in printing equipment
  • Vacuum packaging
  • Surface mounting
  • Vacuum press for wood veneers and laminates
  • Carton forming
  • Robotic tooling
  • Vacuum liquids for testing

Advantages

  • Compact, portable
  • Single stage design eliminates fluctuations in vacuum
  • Quiet
  • Instantaneous vacuum
  • Easy to mount at point of use
  • Lightweight, rugged
  • No moving parts – no maintenance
  • 18 models
  • Fast response – increases cycle time
  • Durable 6061 aluminum construction
  • Safe operation – no electricity

Low Vacuum In-Line E-Vac Vacuum Generators for Porous Applications

Choose the E-Vac by the SCFM (SLPM) flow that best suits the performance needed for your application.

E-Vac Kits give you the ability to experiment with an assortment of Vacuum Cups. E-Vac Kits include a Muffler, an assortment of (4) pairs of Vacuum Cups (closely matched to the performance of that E-Vac), (2) straight, (2) elbow and (1) tee vacuum fittings, 10' of vacuum tubing and a mounting clip.

Deluxe Kits include the same items as the standard kit with the addition of an automatic drain filter separator for the compressed air supply and pressure regulator (with coupler).

Airflow

In-Line E-Vac Only

In-Line E-Vac with Straight Through Muffler

In-Line E-Vac Kit with Straight Through Muffler

In-Line E-Vac Deluxe Kit with Straight Through Muffler

1.5 SCFM

43 SLPM

800001

800001M 801001M 802001M

2.1 SCFM

60 SLPM

800002 800002M 801002M 802002M

3.1 SCFM

88 SLPM

800003 800003M 801003M 802003M

5.4 SCFM

153 SLPM

800005 800005M 801005M 802005M

8.4 SCFM

238 SLPM

800008 800008M 801008M 802008M

12.6 SCFM

357 SLPM
800013 800013M 801013M 802013M

16.8 SCFM

476 SLPM

800017 800017M 801017M 802017M

Accessories

EXAIR offers a variety of mufflers, tubing, check valves, and fittings that make it easy to build a vacuum system best suited to your vacuum application. In addition to these E-Vac vacuum generator accessories, there are other items that can help with the preparation and control of the compressed air.

When using E-Vac vacuum generators, it is important to use a source of clean, dry compressed air that will keep them operating at their peak performance. Automatic Drain Filter Separators keep compressed air free of contaminants and moisture. Oil removal filters that remove oil particulate that is common to many compressed air systems are also shown. Pressure regulators, shutoff valves, compressed air hose, fittings, and solenoid valves (to electrically turn the compressed air on and off) are also available.

Vacuum Cups - EXAIR offers vacuum cups in a wide variety of sizes and shapes to meet the needs of your application. EXAIR's vacuum cups are made of vinyl that is ideal for geneeral purpose applications and provides excellent resistance to wear. The Durometer rating (used to indicate the flixibility and stiffness of the cup) is A50. The operating temperature is 32°F (0°C) to 125°F (51.7°C).

Mufflers - Optional silencing mufflers are available that permit maximum exhaust of the E-Vac unit so cycle speed is not reduced. The Standard Muffler (for use with In-Line E-Vacs only) has a closed end and is suitable for applications that are free of dust and debris. The Straight Through Muffler is recommended where particulate is present since it will not accumulate debris that can erode performance. Straight Through Mufflers offer the best sound level reduction (up to 26 dBA).

Fittings and Tubing - The vacuum port of the E-Vac has an NPT thread (a vacuum cup can be threaded directly into it). For vacuum cups that are remotely located, push-in connector fittings (most have global threads for use with NPT and BSP) can be installed on the E-Vac and the vacuum cup. Polyurethane vacuum tubing is available (10', 20', 30', 40' and 50' lengths) to connect them. For best performance, the length of the tubing should be minimized to achieve the best attach and release times.

Check Valve - A vacuum check valve is available to hold the vacuum in case of compressed air loss. It is designed for high flow so it doesn’t restrict airflow or slow the vacuum operation. Maximum vacuum can still be achieved without affecting the performance. E-Vac vacuum generators that are used without a check valve will release the load if there is a significant drop in compressed air pressure or the supply of compressed air is lost.

E-Vac Styles

In-Line E-Vac Vacuum Generator

These single stage, cylindrical units are compact and easy to mount at the point of use. They can be held in place by threading them directly onto a compressed air line or with the use of a mounting clip. There are 7 models available for use with porous materials like cardboard, with vacuum levels up to 21" Hg (71 kPa) and vacuum flows up to 18.5 SCFM (524 SLPM). There are 7 models available for use with non-porous materials such as glass, with vacuum levels up to 27" Hg (91 kPa) with vacuum flows up to 15.8 SCFM (447 SLPM).

Adjustable E-Vac Vacuum Generator

This series of vacuum generators permits easy adjustment by simply loosening the locknut and turning the exhaust to increase or decrease the level of vacuum and vacuum flow. This style is also an excellent choice where large particulates may be present and passed through the vacuum system. There are 4 models with adjustable vacuum up to 25" Hg (85 kPa) and vacuum flow up to 81 SCFM (2,294 SLPM).


High vacuum units up to 27" Hg (91 kPa) are typically used for non-porous materials such as glass, steel sheet, and plastic.

In-Line E-Vac Low Vacuum Generator Performance (Porous)

ModelAir Consumption SCFM @ 80 PSIGSound Level in dBAVacuum Flow SCFM vs. Vacuum Level “Hg
No MufflerStd. MufflerStraight Through Muffler036912151821Max Vac
8000011.58072601.521.411.000.900.870.740.560.4621
8000022.18072632.222.051.481.241.091.020.780.6721
8000033.18974703.753.522.262.051.871.591.130.9221
8000055.49283665.595.233.753.152.752.391.751.2721
8000088.49788747.706.955.814.894.123.512.611.9221
80001312.699917815.5014.5010.459.028.106.524.543.6518
80001716.8101918118.5017.2012.6711.1210.257.975.985.0418

In-Line E-Vac Low Vacuum Generator Evacuation Time (Porous)

Model

Air Consumption

SCFM @ 80 PSIG

Time in seconds to evacuate a 1 cubic foot container down to listed vacuum

(shown in "Hg).

036912151821
8000011.50.003.307.9514.4022.9034.5552.75137.45
8000022.10.002.405.359.2514.3022.6535.05105.5
8000033.10.001.453.105.609.1015.6034.0592.30
8000055.40.000.802.003.505.658.7015.6539.90
8000088.40.000.701.602.804.406.9514.7029.35
80001312.60.000.310.811.362.163.5111.21N/A
80001716.80.000.310.711.262.063.418.06N/A

In-Line E-Vac Low Vacuum Generator Performance (Porous) - Metric

ModelAir Consumption SLPM @ 5.5 BARNoise Level in dBAVacuum Flow SCFM vs. Vacuum Level kPa
No MufflerStd. MufflerStraight Through Muffler010203141516171Max Vac
80000172.580726043.039.935.431.126.924.115.90.071
80000259.580726362.958.054.150.141.126.915.90.071
80000387.8897470106.299.789.277.960.934.015.90.071
800005152.9928366158.3148.1127.7106.294.671.135.40.071
800008237.9978874218.0196.8178.4150.1119.889.237.10.071
800013356.8999178438.9410.6372.4321.4246.3114.10.00.061
800017475.71019181523.8487.0416.2351.1277.5141.60.00.061

In-Line E-Vac Low Vacuum Generator Evacuation Time (Porous) - Metric

Model

Air Consumption

SLPM @ 5.5 BAR

Time in seconds to evacuate a 0.3 cubic meter container down to listed vacuum

(shown in kPa)

010203141516171
80000142.50.003.307.9514.4022.9034.5552.75137.45
80000259.50.002.405.359.2514.3022.6535.05105.5
80000387.80.001.453.105.609.1015.6034.0592.30
800005152.90.000.802.003.505.658.7015.6539.90
800008237.90.000.701.602.804.406.9514.7029.35
800013356.80.000.310.811.362.163.5111.21N/A
800017475.70.000.310.711.262.063.418.06N/A

In-Line E-Vac Dimensions

EXAIR In-Line E-Vac Dimensions

Model

Air Inlet A

Vacuum Inlet B

 

C

D

E

F

G

H

J

K

800001, 800002, 800003 1/8 NPT 1/8 NPT in N/A N/A 3.00 0.88 0.75 1/4 NPT N/A N/A
mm N/A N/A 76 22 19 N/A N/A
800001H, 800002H, 800003H 1/8 NPT 1/8 NPT in N/A 5.00 3.00 0.88 0.75 1/4 NPT N/A 0.81
mm N/A 127 76 22 19 N/A 21
800001M, 800002M, 800003M 1/8 NPT 1/8 NPT in 5.25 N/A 3.00 0.88 0.75 1/4 NPT 1/4 NPS 0.75
mm 1.33 N/A 76 22 19 1/4 NPS 19
800005, 800008 1/4 NPT 3/8 NPT in N/A N/A 4.50 1.50 1.00 3/8 NPT N/A N/A
mm N/A N/A 114 38 25 N/A N/A
800005H, 800008H 1/4 NPT 3/8 NPT in N/A 7.50 4.50 1.50 1.00 3/8 NPT N/A 1.25
mm N/A 191 114 38 25 N/A 32
800005M, 800008M 1/4 NPT 3/8 NPT in 7.75 N/A 4.50 1.50 1.00 3/8 NPT 3/8 NPS 1.00
mm 197 N/A 114 38 25 3/8 NPS 25
800013, 800017 1/2 NPT 1/2 NPT in N/A N/A 6.00 1.88 1.25 1/2 NPT N/A N/A
mm N/A N/A 152 48 32 N/A N/A
800013H, 800017H 1/2 NPT 1/2 NPT in N/A 9.00 6.00 1.88 1.25 1/2 NPT N/A 1.25
mm N/A 229 152 48 32 N/A 32
800013M, 800017M 1/2 NPT 1/2 NPT in 10.25 N/A 6.00 1.88 1.25 1/2 NPT 1/2 NPS 1.25
mm 260 N/A 152 48 32 1/2 NPS 32

How The In-Line E-Vac Works

How the In-Line E-Vac Works

Compressed air flows through the inlet (1), then through a single directed nozzle (2). As the airstream exhausts, it expands and increases in velocity prior to passing through the venturi (3). A vacuum inlet tangential to the primary airflow (4) is located at the suction point between the orifice and the venturi. The airflow that is drawn through the vacuum inlet mixes with the primary airstream, then exhausts on the opposite end (5).

In-Line E-Vac Standards and Certifications

OSHA Safe!
CE Compliant

EXAIR In-Line E-Vacs comply with OSHA's Safety Requirements, the EU General Product Safety Directive (2001/95/EC) and meet the noise limitation requirements of the EU Machinery Directive (2006/42/EC). All sound level measurements are taken at 3 feet away.

Conflict Mineral Free

Look for this symbol to designate conflict mineral free products throughout our website. EXAIR supports Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act and we are committed to compliance with the conflict minerals rule in order to curb the illicit trade of tin, tantalum, tungsten and gold in the DRC region. EXAIR is using the CMRT 3.02 template to document our supply chain and commitment to conflict free products.

WARNING! Cancer and Reproductive Harm - www.P65Warnings.ca.gov/product

How to Build An E-Vac System

1. Select the E-Vac type.
  A. Determine if the part to be lifted is porous or non-porous.
  B. Select a style - In-Line Low Vacuum, In-Line High Vacuum or Adjustable. The E-Vac type determines max. vacuum available for lifting the part and vacuum cup selection.
Porous low vacuum generators max. vacuum = 21" Hg (71 kPa)
Non-porous high vacuum generators max. vacuum = 27" Hg (91 kPa)
Adjustable E-Vac vacuum generators max. vacuum = 25" Hg (85 kPa)
2. Determine the weight of the part.
3. Multiply the weight by the vacuum cup safety factor for the total vacuum cup capacity needed.
4. Determine the number of vacuum cups needed by considering the following:
  A. How many cups are needed to distribute the weight for stable lifting and placement?
  B. What is the weight that each vacuum cup can lift based on maximum vacuum available (E-Vac type)?
  C. Select vacuum cups based on max. vacuum available (E-Vac type) and holding weight/cup.
5. To choose an E-Vac model number, consider the entire vacuum system from the E-Vac to the part.
  A. Number of vacuum cups per E-Vac
  B. Length and size of vacuum tubing
  C. Vacuum cup size and type
  • The volume of air to evacuate from your vacuum system and the vacuum flow of the E-Vac you've selected will determine the time it takes from E-Vac activation to vacuum cup holding the part. As the vacuum level in the system increases, the volume of evacuating air decreases.
  • A lower volume of air in the vacuum system and/or a higher capacity (SCFM/SLPM) E-Vac will give faster pick-up times.
  • An exact pick-up time cannot be calculated.
  • If the E-Vac vacuum generator doesn’t meet your needs, return it for a different model, with no restocking charge.

Here is an example using the steps outlined above:
A sheet of material measures 3' x 3' (.91m x .91m) and weighs 25 lbs (11.3kg). Each sheet is in a stack and will be placed on a conveyor.

If it is porous, like wood, and positioned vertically:

1. Choose a porous, low vacuum E-Vac. In this case the In-Line style will be used. The maximum vacuum is 21" Hg (71 kPa).
2. The weight is 25 lbs (11.3kg).
3. If the part is picked-up and hung on an overhead conveyor vertically, the safety factor is 4. The vacuum cup capacity needed is 4 x 25 = 100 lbs (45.4kg).
4. Four vacuum cups will be used for stability when lifting the sheet. Each cup will need at least a 25 lb (11.3kg) capacity. The Model 900755 Vacuum Cup will hold up to 25.3 lbs (11.5kg) at 21" Hg (71kPa).
5. Use 4 small round vacuum cups that are positioned close to one another. The vacuum system has a small to medium volume and pick-up and release time is not critical. To reduce the sound level, use the straight through muffler.
Order: (1) Model 800008M In-Line E-Vac; (4) Model 900755 Vacuum Cups

If it is non-porous, like glass, and positioned horizontally:

1. Choose a non-porous, high vacuum E-Vac. In this case the In-Line style will be used. The maximum vacuum is 27" Hg (91 kPa).
2. The weight is 25 lbs (11.3kg).
3. If the part is picked-up and placed on a belt conveyor horizontally, the safety factor is 2. The vacuum cup capacity needed is 2 x 25 = 50 lbs (22.7kg).
4. Four vacuum cups will be used for stability when lifting the sheet. Each cup will need at least a 12.5 lb (5.7kg) capacity. The Model 900754 Vacuum Cup will hold up to 20.8 lbs (9.4kg) at 27" Hg (91 kPa).
5. Use 4 small round vacuum cups that are positioned close to one another. The vacuum system has a small to medium volume and pick-up and release time is not critical. To reduce the sound level, use the straight through muffler.
Order: (1) Model 810006M In-Line E-Vac; (4) Model 900754 Vacuum Cups
The Model 840008M Adjustable E-Vac can be substituted for picking up the wood or the glass since the vacuum level and vacuum flow is easily adjusted to suit the porous or non-porous application. The Adjustable E-Vac is especially useful for loads that vary.

Increased Energy and Vacuum Efficiency

Energy and vacuum efficiency are not limited to the Adjustable E-Vac vacuum generators. All E-Vac styles and models can offer significant improvements when looking to reduce the amount of compressed air used for a specific vacuum application. Once the appropriate amount of vacuum and flow for the application are determined, it is important to select the appropriate model that will deliver the best performance while using the least amount of compressed air that it takes to do the job.

Many companies have a centralized vacuum system where the vacuum is generated at a location that is far away from the point of use. The long runs of piping through the plant produce line loss and it is often difficult to obtain that perfect balance of vacuum and flow required for an application. The compact In-line E-Vac vacuum generators eliminate this problem since they can be mounted at the point where the vacuum source is needed. EXAIR’s Application Engineers can help you to select the E-Vac vacuum generator and vacuum cups that provide the right amount of lifting capability while minimizing the amount of compressed air usage.

Other Applications for the E-Vac

E-Vacs are used in many other “non-lifting” applications. They are commonly used for vessel evacuation, clamping, chucking, and other work holding applications. Many types of automated equipment use vacuum to evacuate, grip, hold, align and insert parts. These vacuums can be used for surface mounting, vacuum packaging, bag opening, label placement, carton forming and container evacuation.

Another popular application is using the E-Vac for liquid sampling. This process can easily be accomplished using an E-Vac vacuum generator attached to a liquid holding tube. When the tube is dipped into the vat, tank or container, the compressed air is turned on so it draws a specific volume of liquid up into the tube. When the compressed air is turned off , the liquid flows from the tube and can be dispensed into a container or machine to be analyzed.

Use our Application Assistance Worksheet to submit information about your application. When you submit this information, we will respond with our recommendation for the EXAIR product best suited for the application. Please complete the Application Assistance Worksheet and click submit or print the completed .pdf file and fax it to us at (513) 671-3363. For immediate help, call our Application Engineering Department at 1 800-903-9247.
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