FAQ

What does DVACI mean?2022-09-23T16:36:07+00:00

DVACI comes from the Spanish “Cámara De Vacío” which means “Vacuum Box” or “Vacuum Chamber” in French. The initial idea was to call the brand DEVACI, but the .com domain name was already taken, so we opted to drop the E and stick with a short 5-letter domain name “dvaci.com”. We were lucky as 5 character domain names are not usually available.

Can I add options after purchase?2022-09-23T16:34:11+00:00

No, this is not possible.

All options must be ordered at the time of purchase.

Which safety regulations do your devices comply with?2022-09-23T16:32:55+00:00

Our enclosures comply with the European directives on which they are based, i.e.

EN 61326-1:2013 electromagnetic compatibility

EN 61010-1:2011 / A1:2020 electrical safety.

These two directives lead to the CE marking of the device.

These 2 directives have been verified in similar vacuum boxes by the Spanish laboratory: APPLUS located in Barcelona.

Do your CDV vacuum chambers meet USP 1207 CCIT standard?2022-09-23T16:31:41+00:00

Our CDVs equipped with Orion (PLC version) or Pharmaceutical CDVs comply with USP chapter〈1207.2〉 Container Leakage Testing Technologies – Probabilistic Leakage Testing Technologies: Bubble Emission and Liquid Tracer.

Why do my products swell when they are transported by plane?2022-09-23T16:29:56+00:00

Due to the depressurization that occurs in the cabin / hold of the aircraft.

In fact, airlines reduce the pressure by about -250mBar during air transportation. This is to minimize the cost of pressurizing the aircraft and to reduce mechanical stress on the aircraft. The same thing happens in the cabin where you travel.

Therefore, your container is under less pressure than its packing height, causing it to expand because the internal pressure balances the external pressure.

It is this principle of pressure difference that we use in our boxes. We can simulate air transport by putting a vacuum of -250mBar on your container and leaving it for a long time to simulate real air transport.

Why do my products that contain liquid have to be tested dry?2022-09-23T16:28:48+00:00

In order to be able to see the flow of liquid in the chamber it is best to test products containing liquid dry in our chambers.

Products containing liquids often need to be tested “upside down” to ensure that any air remaining in the container does not escape first… The entire part of the product likely to leak must be in contact with the liquid.

Some products that contain very little air can be tested lying down, but you have to make sure that the air is not in contact with the parts that can leak…

Can rigid products (e.g. glass) be tested in DVACI chambers?2022-09-23T16:27:26+00:00

Yes, there is no problem to test the rigid containers, the stresses will be even higher in the sealing part. The difference in pressure between the inside and outside of the container will allow the test to be carried out with very good results.

What are the differences between the AUTO and PLC control versions?2022-09-23T16:26:21+00:00

In fact, these two versions are very similar and the differences are not obvious.

The PLC version, which is the highest range, has a complete “ORION OS” operating system that allows you to install applications to control the products in different ways, such as on a smartphone.

This version also includes a multi-user system that guarantees the isolation of each user session and allows each user to customize their interface and test programs

This version also allows us to connect a card reader Optional SD cards to export results. A printer to print test results and a barcode reader to quickly select the right test program for the product.

What is the opening/closing mechanism of the CDV vacuum chambers?2022-09-23T16:25:05+00:00

All our units are supplied with a cover system guided by 2 hydraulic cylinders to facilitate opening and closing. These cylinders act as shock absorbers.

This system prevents possible injuries that could result from handling a conventional bonnet without these “shock absorbers”.

How do you pronounce DVACI?2022-09-23T16:24:03+00:00

“Devaci”

Where are DVACI brand devices manufactured?2022-09-23T16:22:38+00:00

DVACI brand appliances are designed and manufactured in Mexico in Querétaro by BOUSTENS SA DE CV.

Is BOUSTENS a French company?2022-09-23T16:21:19+00:00

At the beginning, in 2010, there was a legal structure in France called BOUSTENS SAS that was closed when the legal structure “BOUSTENS SA DE CV” was created in Mexico in 2011. So the company is incorporated in Mexico but the capital is of French origin. .

What are the other activities of BOUSTENS SA DE CV?2022-09-23T16:20:07+00:00

Currently, BOUSTENS focuses 100% on the manufacture and marketing of products and services under the DVACI brand.

How can I find out where my nearest distributor is?2022-09-23T16:18:42+00:00

Most distributors are listed in our Distributors and Partners section by clicking on the image. They are classified by country.

To better guide you and have an efficient follow-up of your request, we invite you to fill out our contact form.

How do you check the tightness of a small bag?2022-09-23T16:16:46+00:00

Usually, there is little air in the bag, so this can cause 2 problems:

1-1 When we make the immersion test in an ASTM D3078 vacuum chamber, we may not be able to create enough pressure differences across the container walls to observe leaks. This will depend on the size of the bag and the volume of air left inside.

1-2 Although conditions are ideal for testing in a vacuum chamber, if there is a leak, only a few bubbles will come out of the bag for 5 to 10 seconds. The pressures will quickly equalize and all the air will have been sucked out. Therefore, the operator must be attentive and observant.

👉🏼 The test becomes very subjective.

Solution: test by injecting air -> internal pressurization in the bag with a needle: ASTM F2096 standard

2- Low viscosity index of the product.

The other difficulty is the product it contains.

The lower the viscosity index of the product: gel or peanut butter, the more likely the product itself (packaging) will block any leaks and prevent air expulsion (bubbles) or product flow. Unfortunately, this phenomenon is difficult to detect. The only solution is to do validation tests with empty products or with a product with a higher viscosity index.

So, as you can see, it’s not easy.

If it suits you, I can quote you a CDV2 (28x20x20cm) SVVI (semi-automatic, vacuum, venturi, immersion) vacuum chamber with PI (internal pressurization) option. Therefore, it can be tested in accordance with D3078 and F2096.

We have published some videos on Youtube showing how to carry out a leak test on the bags:

🎥 https://youtu.be/z3VApGWtLsI

🎥 https://youtu.be/RYmcXtU9FnE

🎥 https://youtu.be/6GkIQyfu5lo

2022-09-21T15:19:45+00:00