The Special "Double-Fold" System | VERINOX Interior Lining System

As early as 1970, Xaver Lipp had the idea for unique double-fold system, which signified a quantum leap in the field of tank technology and has stood the test in the construction of containers and tanks in innumerable plants to the present day.
The system involves steel bands being interlinked by folds giving the inside of the container an edgeless and smooth surface. Additionally, the double-fold system guarantees maximum tightness and stability.
The LIPP System has already been successfully used in more than 80 countries.
VERINOX Interior Lining System
A stainless-steel band and a galvanized steel band are joined with a separation layer. As a result, the proportion of expensive stainless steel is reduced considerably, as are the total costs. The material quality of the stainless-steel band is variable, depending on requirements – 304, 316, 316i,
The interior of each tank design is doubly lined with stainless steel throughout, while the exterior is galvanized steel from top to bottom. The decisive economic advantage: the same benefits at lower costs!
With Verinox - this duplex material which has been developed by the Lipp organization, is made up of a sheet of stainless steel which is joined to a sheet of galvanized steel by means of a separation layer. An adhesive sheet is rolled and compressed (sandwiched) between the carbon and stainless alloy. This allows the Barrier to be created so as to provide protection of dis-similar metals to occur.
Three components form the basis for this material that is ideal for tank construction. Not only does it have outstanding physical properties but it also uses a reduced quantity of expensive stainless steel, resulting in lower costs.
There are no open joints due to the folded design. Various grades of stainless steel are suitable for use inside tanks. A simple steel or galvanized sheet is sufficient for the outside of the tanks as it will be corrosive resistant and able to withstand normal weather conditions.
Our Materials

In order to meet the specific needs and requirements of our customers, LIPP covers a wide variety of materials.
Depending on the substrate-specific requirements, the spectrum ranges from galvanized steel to high-alloyed stainless steels (e.g. 1.4301 [304] or 1.4571 [316i]).
A special material, Verinox, was developed by LIPP and won the Baden-Württemberg Innovation Award in 2005. It combines galvanized steel for the outside and stainless steel for the inside of the container.
After in-house production, the coiled material is delivered to the construction site. Verinox impresses with a favourable cost-benefit ratio and guarantees lasting reliability.
The Assembly
The LIPP double-seam system is the fastest and easiest technique for the flexible construction of reliable containers and tanks at the customer’s location.
Characteristic of the system are the transportable assembly devices, allowing the construction of tanks by steel bands with varying diameter and height.
The mostly automated production process permits a continuous variable installation within a short time.
Prefabricated modules can be assembled subsequently. Thus, we guarantee high quality for each project- worldwide.