Exceptionally UN

Marc Martens Marc Martens Facebook Linkedin

Like all CurTec packaging, the new Rectangular Drums are suitable for the transport of hazardous goods. Just like the innovative shape and patented closure, the UN packaging type is also new to CurTec. 4H2 has been used for years for boxes and can also be used on the new drums. So why choose the more difficult 3H2?

Both 3H (plastic jerry cans) and 4H (plastic boxes) may be used for rectangular or square packaging. The limitations are the period of validity and the performance level (permitted packing groups) of the UN marking.

Widely applicable

4H is valid indefinitely while 3H is valid for 5 years from the year of production. A 3H, on the other hand, may be applied for all packaging groups (X) while a 4H is limited to packaging groups II and III (Y). Since CurTec wanted to make these new packs widely applicable, 3H was chosen so that they fit seamlessly into the existing UN range.

Packaging type 3H1 is very recognizable: the 1 stands for non-removable head with an opening ≤ 70 mm and can be used on most jerry cans. 3H2 is rare because it can only be used on rectangular packaging with a removable lid (open top). Piloting that combination through a UN test is particularly challenging.

Stringent UN requirements conflict with user-friendliness

CurTec generally uses a screw lid to close round open top containers. Such a threaded closure is easy to use and at the same time robust because the container is enclosed in the lid. Most rectangular open top containers are closed with a press-on lid which is fixed by clamping. The higher the UN mark, the more clamping is required, making closing and opening less easy and user-friendly.


That is why CurTec has translated the principle of the screw thread into a rectangular solution: a patented press-and-slide mechanism ensures that the container, just like the round version, is locked in the lid. As a result, an extremely high UN certification can be achieved and the container is still easy to close and open.

The new Rectangular Drum is already available. You will find all benefits and features on our website:

Discover Rectangular Drums

 

Close
Close
Close