1. Tank production
All our plastic tanks are produced by a special production process known as rotational moulding. This process guarantees the high quality and long lifetime of our plastic tanks. Other providers usually use a simpler method whereby various plastic sheets are welded together to form a tank. The rotational moulding takes place with a mould made of stainless steel or aluminium. The rotating mould is filled with plastic powder and rotated in the melting oven chamber at around 300°C. The plastic melts and adheres to the walls of the mould. Once the Product/Tank has stabilised in the cooling down process, it is almost complete at a temperature of around 85°C. At this stage it can be carefully removed from the mould for final cooling. Through the rotational moulding process we get high-quality, seamless plastic containers in different sizes and shapes. The material used is food safe and physiologically harmless.
2. Application of tanks
Our plastic tanks with baffles are suited for transport of various liquids. Due to the high quality of medium density PE (MDPE) and a wall thickness of 8 mm, our containers are robust, stabile and UV- resistant. They have a high impact strength, rigidity and a long lifespan. For your individual requirements we offer narrow, flat, round or tower plastic tanks in different sizes and volume.
Common areas of use:
- Plant/mechanical engineering
- Chemical industry
- Food industry
- General manufacturing industry
- Sewage/water treatment
- Coolant technology
- Manufacturing facilities
- Technical test benches
3. Other liquids and fluids
Other liquids and chemicals can also be stored in our tanks. For chemicals, acids and alkalis, please note the respective concentration of the fluid.
4. Water temperature
The plastic tanks are designed for the permanent use of water temperatures from 0-60°C. The tanks can also withstand temperatures of up to 70°C for short periods of time. The water in the tank should not freeze, as it will then expand and damage the plastic tank.
5. Dimensions of the tank without cover
In most cases the indicated dimensions refer to the pure container size, the height of the lid is not considered here. The exact dimensions, e. g. height including lid, width of the notches or distances of the baffles etc. can be found on the respective product page of the technical drawing of the tank.
6. Tanks and caravans
The plastic tanks are also used in vehicle construction and building into caravans. Especially our narrow or flat plastic tanks are suited for installation in a vehicle, depending on the space available and the intended use. The possibility for further connections for inlets, outlets or overflows as well as venting - through PVC accessories or through additional HDPE fusion sockets (welding sleeves) - offers a great advantage and is highly appreciated by our customers.
7. Connectors
Push-In BSP Fittings with various gaskets for additional or alternative connections to our water tanks & plastic tanks. The complete installation of these PP Tank Connection Sets - even in inaccessible places, from outside the tank - can be carried out quickly and easily by just one person using standard tools. The Push-In BSP Fittings have both male and female threads on each fitting for maximum installation flexibility. Available with external threads ½' - 2' and internal threads 3/8' - 1 ½'. The glass-fibre reinforced PP (polyethylene) is durable, physiologically safe and offers excellent, maintenance-free corrosion resistance. The patented EPDM (food-safe), NBR (diesel-resistant) or FPM (chemical-resistant) sealing diaphragm ensures a complete seal up to 4 bar combined with very good resistance. The Push in BSP Fittings can also be installed on round tank walls, please note the required minimum diameter of the water tank.
8. Baffles
Baffles are mainly installed on our medium to large-volume, semi-transparent plastic tanks. These prevent the water in the tank from sloshing during movement and portable use. In addition, the permanently installed baffles give the container rigidity and thus contribute to an optimised stability.
9. Connections of two tanks
We recommend using the existing brass connection for the connection because it is installed at the lowest possible point of the tank. Depending on the available space, portable use of the tank a “flexible" connection has proven its worth. This can be easily installed using hose nozzles and a connecting piece of hose. For safety/space reasons, it often makes sense to guide the connection along the tank wall with an angle of 90 degrees. Especially in portable use a flexible connection better resits occurring vibrations, and thus prevents possible damage/breaking of connections.
10. Ventilation
Ventilation is recommended to ensure air exchange during filling and emptying of the tank. If there is not enough air exchange, over- or under-pressure can form and damage the tank. A vent can be installed independently at the desired location with our Tank Connection Sets (or Vents) in different sizes. We recommend to lead a piece of hose upwards and to fasten it securely.
11. Pressure tanks
Our plastic tanks are not designed as pressure tanks. The tanks are dimensionally stable up to at least 0.8 bar. The containers should not be permanently under higher pressure to prevent deformation and excessive stress on the material.
12. Tank filling and deformation
In contrast to steel tanks, a slight expansion/deformation cannot be ruled out completely; however, it is absolutely harmless and will not lead to permanent deformation. The baffles and the wall thickness of 6 mm or 8 mm counteract this, and the tank will stay in its shape. An expansion can be lowered by chasing/shuttering at installation.
13. Tanks and fuel
The plastic tanks are not suitable for use with petrol. Diesel, on the other hand, can be stored without any problems. If you wish to use the tanks for storing diesel, please inform us accordingly so that we can attach diesel-resistant rubber rings to the tank lids. Please inquire about the general legal regulations and insurance aspects of diesel storage on your private property.
14. Tank outlet
There is always a brass connection on our plastic tanks. If you order this "drilled", it will be drilled out (opened) after production. The connection is so useable, and you can attach additional accessories like our Brass Tank Connection Sets to the internal thread of the brass connector/outlet. The liquid will get into contact with the brass connection. If you order the tank with an "undrilled" connection the brass connection is also available on the tank, but not drilled out/through (so it will be closed). This means that the brass connection is completely covered with plastic from the inside and does not get into contact with the stored liquid. The connection is completely closed, and no extra plug is required for closing the connection. If necessary, you can drill the connection by yourself with a hole circle drill and use it normally.
15. Addictional connections
In addition to the permanently installed brass connection, you can use our PE or PVC Connections-Sets in sizes of ¾ inch to 2 inches to install your own alternative connection. Please note that the desired place must be accessible via the lid. If you need additional connections in places that are not accessible via the lid opening, we can fit HDPE fusion sockets (welding sleeves with internal thread) to all semi-transparent plastic tanks.
16. Connecting the tank and the caravan
A connection of Ø 40mm is mostly standard for the water supply via an external flap installed in the wall of caravans or mobile homes.