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Package leak detector and seal integrity tester

High quality packaging seal integrity tester that adds quality control measures to your packaging applications

FlexPak Leak Detector Bubble Test Package

The  leak detector machine is a high quality seal integrity tester for packaging that adds quality control measures to your packaging applications. The vacuum seal integrity test will help ensure that your packaged product is sealed to your specifications. Benefits of  will be realized by many industries from package manufacturers and converters to end user packagers in the packaging of: cheese, meat, seafood, pet food, pet treats, coffee, grains, cereal, bakery, confectionery, snacks, pasta, frozen foods, medical and pharmaceutical, industrial, and many more.

Using a Package Leak Detector

The  package leak detector can be used for a variety of different package types, from stand-up pouches, packages with modified atmosphere packaging (MAP), rigid trays, vacuum skin packs, thermoform packages, sachets, flow wraps, form fill seal (VFFS) and reclosable packages. Wherever package seal integrity is critical, the vacuum seal tester can be used to detect if there are any faults in the package’s seal, seam or closure before making it to production or your customer.

How the Vacuum Seal Tester Works

The  leak detector and seal integrity testing device consists of a clear acrylic vacuum tank (chamber, also known as a “dunk tank” or “water bath”), a control valve, and a vacuum gauge. From the fittings to the stand, the detector utilizes solid stainless steel working parts to avoid corrosion and ensure the highest durability. Through our more efficient design, our leak detector is more reliable than all other similar leak detectors.

Packages requiring testing are simply placed in the clear acrylic vacuum tank (chamber) of water, the lid is closed and vacuum engaged. If you see bubbles you have a leak! Visual confirmation of a leak location directs operator to which seal bars require adjustments. A complete test can be accomplished in just a matter of seconds with immediate results! For more information or questions about  leak detection equipment, contact us and request a quote today!

 Semi or Fully Automatic Control Systems

FPSA-T and FPFA-T are  Semi-Automatic and  Fully Automatic control options that can be purchased to improve repeatability and offer data acquisition.

Table top

Table top


FP110808 FP181210 FP201413
Model # Inside tank dimensions Max. package size
11 x 8 x 8 inches
280 x 200 x 200 mm
10 x 7 x 5 inches
250 x 180 x 130 mm
18 x 12 x 10 inches
460 x 305 x 255 mm
17 x 11 x 7 inches
430 x 280 x 180 mm
20 x 14 x 13 inches
510 x 355 x 330 mm
19 x 13 x 10 inches
480 x 330 x 250 mm
Floor stand

Floor stand


FPFL201413 FP242015 FP302015 FP322619 FP392220
Model # Inside tank dimensions Max. package size
20 x 14 x 13 inches
510 x 355 x 330 mm
19 x 13 x 10 inches
480 x 330 x 250 mm
24 x 20 x 15 inches
610 x 510 x 380 mm
23 x 19 x 12 inches
580 x 480 x 300 mm
30 x 20 x 15 inches
760 x 510 x 380 mm
29 x 19 x 12 inches
740 x 480 x 300 mm
32 x 26 x 19 inches
810 x 660 x 480 mm
31 x 25 x 15 inches
790 x 630 x 380 mm
39 x 22 x 20 inches
990 x 560 x 510 mm
38 x 21 x 16 inches
970 x 530 x 400 mm

Product options

Semi Automatic Control Package

Greater control of operator repeatability of tests. Learn more

Fully Automatic Control Package

Improved operator repeatability, recipe capability, automatic altitude testing, data acquisition. Learn more

Electric Vacuum Pump

Only required if compressed air is not available. Learn more

Vacuum Pack Attachment

Required to produce a bubble if package has zero or limited gas inside. Learn more

Client Reviews

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Ross Daharsh P.E.,Eaton Corporation

Leak tester works great!

Leak tester works great and this will save me hours of time every week. Ultimately I’ll be able to turn this over to our hourly workforce. Thanks again for a great product.

Kurt Lewis, Quality Control Coordinator,Packall Packaging Inc.

We rely heavily on the reliabilty of these FlexPak Leak Detectors

Firstly we have three tanks in our production area that are used everyday and all day with minimal maintenance. The operators check finished product every hour for verification of seals and can rely on the visual result. It has been great to pinpoint seal failures and fractures of our pouches, where we can quickly fix a defect when noticed. All our testing is done inline with our bag machines so we rely heavily on the reliabilty of these FlexPak Leak Detectors.
Also since I do most of the maintenance on these tanks, I can honestly say they’re built tough, easy to clean and changing the seals is a breeze. We put these tanks through a lot, lids opening and closing all day long and with no issues. We have a tank purchased in 2013 and its still going with no end in sight, used everyday.
It’s a solid product and has become an essential part of our quality system.

Ryan Parker, Engineering,Halo Foods Ltd.

Tests went well

Wayne & Jason’s visit went well I believe. I told them how reliable they are and the support from you guys is great.

Dave Dalton, CEO,eBars

FlexPak has an outstanding product!

FlexPak has an outstanding product, pure and simple. It is fast, easy to clean, and very reliable in its feedback. I’m so glad we made this choice; we are able to make small adjustments on the fly to our packaging equipment because of its precise accuracy. 5 Stars for FlexPak!

Terry Cliche,Heidelberg Foods Ltd.


Leak detector works great. No issues and excellent company to deal with.

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