Inflatable formwork- JB Qualifix®

The JB QUALIFIX® is an inflatable manhole formwork. It is an alternative to heavy wooden or metal formwork. This solution is used for sealing cylindrical manholes. Compared to standard formwork, it saves up to 5 hours of work on the site. In addition, its perfect watertightness protects the manhole chamber from possible residues that could fall into it during concreting. Thus, the workers do no longer have to go down to clean it.

The JB QUALIFIX® acts like a standard manhole formwork. The operators slide the deflated tube into the manhole. Using a small compressor, they inflate it until the solution fits the entire wall for a perfect seal. Once inflated, the operators can pour the concrete all around, without dirtying the manhole. The use of this solution provides a better quality manhole seal that will last over time.

This product was imagined by Jonathan Bracco, an employee of the company TRBA. He thought of it in order to protect his teams as much as possible. Indeed, this inflatable formwork allows the prevention of the FME risk since it has the function to avoid any fall of operators or objects in the inspection chamber. Thus, the operators are protected during the whole duration of the manhole sealing.



  • Simple and quick to use
  • Quick and easy to remove
  • Easy storage
  • Custom made or standard
  • Reusable
  • Lightweight


  • High resistance
  • Perfectly sealed


  • FME risk prevention
  • Prevention of operator and object fall

Detailed information

  • Material: Polyurethane
  • Technique: High frequency welding
  • Pressure: 0,2 bar – safety pressure: 0,3 bar
  • Inflation: air
  • Dimensions: Standard: 600 to 700 mm diameter – Custom made possible
  • Accessories: small compressor, supply line

You can not find your dimensions

Our design department employs the best project leaders and designers and will be pleased to develop and create a tailor-made product specially for your unique project.


Composition / Advice

Avoid contact with sharp surfaces
Safety valve triggers above 0.3 bar
Check for loss of pressure. Check the function of the valve.


Fact Sheets / Business Guides
  • This field is for validation purposes and should be left unchanged.


Supply line
We use cookies to allow you to visit and use our site. Certain cookies are necessary for its functioning and cannot be deactivated. Other data collection cookies help us to improve the relevance of our content. These cookies are only activated if you consent to their use by clicking below.
Ces cookies permettent de suivre le parcours utilisateur, le passage sur un site pour une évaluation et une stratégie marketing.
Ces cookies permettent d'obtenir des statistiques de fréquentation anonymes du site afin d'optimiser son ergonomie, sa navigation et ses contenus.
Refuse all