Tank farms are precision work.

PURPLAN combines precise planning and technical expertise to develop high-quality tank farms. Our complex tank farms are used to store and process large quantities of liquid substances for the polyurethane and synthetic resin industry.

From the initial design in the computer software to the finished final configuration, our employees work with the utmost precision to guarantee the best quality for your customized tank farms. PURPLAN tank farms are designed for all materials, applications and positions.

We work closely with you throughout the entire tank farm construction process so that we can advise and support you with the highest level of technical expertise, extensive flexibility and comprehensive service in the construction of individual tank farms in accordance with all standards and regulations.


Core Competence Bulk Storage

PURPLAN combines accurate engineering with technical expertise to meet the operating requirements for environmental hazard and flammable liquids. The construction of specific bulk storage systems including the related pipeline construction is our core competencies. We create a complex solution with a deep dialog with our customer – valuable and custom-made – according to all standards and regulations.

Norms and standards in PURPLAN tank systems

As a manufacturer of tank farms, we pay particular attention to compliance with important norms, standards and regulations in order to guarantee the safe and proper storage of liquids and plastics.

  • Underground tanks according to DIN 6608: underground steel tanks (underground tanks) for flammable, non-flammable or water-polluting liquids
  • Above-ground tanks according to DIN 6616: above-ground single-walled and double-walled, horizontal tanks (tank farms) made of steel, which are intended for water-polluting, flammable and non-flammable liquids
  • Basement tanks according to DIN 6625: Above-ground, angular steel containers for liquids with a flash point of more than 55 ° C
  • Water Resources Act (WHG): Protection of surface water and groundwater,
  • Industrial Safety Ordinance

Solutions for all Requirements

Engineering and construction of bulk storage with tank sizes form one to 100 cubic meter holding capacity, as well as single-walled and double-walled made of carbon steel, stainless steel or glass fiber reinforced plastic. Tanks can be installed upright, horizontal or even underground. According to the applications requirements, tanks can be supplied with additional parts such as an agitator, temperature control system, insulation, Operator Safety Unloading Interlock and E-Stop or reloading point if needed.

Use of tank farms

Tank farms are used in a variety of industries to store liquid substances in particular. These are often hazardous to water or flammable. In some cases, the contents of tank farms consist of fuels such as petrol, kerosene, diesel or special aviation fuels.

Solvents, acids and bases as well as crude oil and refinery products are stored for the chemical and petrochemical industries. Care must be taken to ensure both safe storage and optimal storage in order to preserve the properties of the tank storage contents and not jeopardize the efficiency of subsequent production. Resins, their hardeners, polyester resins and adhesives are also stored in tank farms.

To enable the best possible use of tank farms, PURPLAN uses precise planning and technical expertise to manufacture safe and customized systems for polyurethane and synthetic resin production.


PURPLAN Know-How for complete materials

  • Polyol, MDI, TDI
  • Resin, Curing Agent
  • Binding Agent
  • Glues, Bitumen
  • Acids, Alkali
  • Activators
  • Catalysts
  • Flame-Retardant
  • Adhesives
  • Glycols

Further services for the construction of tank farms

  • ANA safety devices: Attention emergency stop systems are emptying devices with an attention button and emergency stop function, which are suitable for preventing large quantities of water-polluting liquids from escaping when filling tank containers.
  • Transfer stations: They are an area or facility within a tank system that is used to transfer liquids from one container to another. Refilling and transfer stations are based on water law regulations and the German Ordinance on Industrial Safety and Health.
  • Container stations: Container stations enable the optimum preconditioning of PUR components and the automatic filling of daily containers.
  • Pigging systems: The systems support the emptying of a pipe using a fitting body.
  • Insulation: Insulations in tank farms minimize the heat exchange between the individual components so that heat is neither lost nor added undesirably.
  • Agitators: Inside the tank farm there is a motor with a rotating agitator which ensures the homogeneity of the ingredients in the tank.
  • Temperature control systems: These systems are used to regulate the temperature of the contents of the tank farm to ensure optimal conditions or chemical reactions.

Tank farm refurbishment

Tank farms, such as polyurethane tank farms, are usually in operation for several decades. The components of the tank farms can wear out due to constant use, which can lead to leaks and other safety deficits for people and the environment. New requirements in use and safety regulations as well as modern and improved usage practices and important environmental protection standards also require the refurbishment of tank farms.

To ensure additional safety for facilities storing raw materials for polyurethane production and to prevent a tank farm explosion (detonation) or vacuum-induced implosion, we carry out overpressure/underpressure protection. This protects your tank farms from impermissibly high or low pressure while at the same time protecting the storage medium from atmospheric influences.

We at PURPLAN are happy to support you in bringing your system up to date and securing it cost-effectively and with simple operation. In doing so, we always ensure that all current regulations and laws are implemented to guarantee maximum safety and functionality.


Our tank farms for your requirements

No matter what type of tank farm you need: each of our systems is unique and tailored precisely to your requirements. This includes 

  • vertical installations
  • horizontal installations
  • Underground installations

We plan and build tank farms for you with tank capacities of up to 100 cubic meters, single-walled or double-walled in iron, steel or plastic. In consultation with you, we can also add accompanying technology such as agitators, temperature control systems, insulation, ANA safety devices or transfer and handling stations if required. Your turnkey tank farms are assembled and installed directly on site for completion.


PURPLAN has stood for technology, innovation and experience since 2002. Since then, the family-owned company has expanded to five continents with 200 employees and more than 350 projects. As a trustworthy and reliable partner to our customers and our many years of experience in plant engineering, we make complex projects simple and efficient. In our structured and ultra-modern work processes, we attach great importance to sustainability, economy and social responsibility. That is why we use renewable energies, follow an ethical corporate culture and are committed to education and equal opportunities among our employees.

We promise you the highest quality, commitment and modern technologies!


Your contact persons

Dirk Hörnschemeyer

Technical Sales

Tel.: +49(0)5407 8177-140 
Mobil: +49(0)151 18433598

Daniel Küthe

Head of Sales and Projects International

E-Mail: daniel.kuethe(at)purplan.de
Tel.: +49(0)5407 8177-160
Mobil: +49(0)173 3651653

Marco Vinke

Field sales force

Tel.: +49(0) 5407 8177-207


As the costs for tank farms depend on the services booked, the amount of material and labor required and the type of installation, it is unfortunately not possible to give a general answer to this question. However, we will be happy to advise you in a free consultation on suitable tank farms for your project and estimate the resulting costs.


Tank farms Explosions are caused by ignition sources, lack of maintenance or excess pressure in the storage medium. To prevent this, regular training, safety checks and maintenance as well as overpressure/underpressure protection should be carried out.


Containers in accordance with DIN 6608, underground steel tanks (underground tanks), are suitable for the storage of water-polluting, flammable and non-flammable liquids. Under no circumstances may these penetrate to the outside and contaminate the surroundings of the tank farm.


Water-polluting liquids are substances that impair the quality of a body of water if released into it. Water hazard class I (WGK I) is considered a low hazard and water hazard class II (WGK II) a high hazard.


In the first contact, we look at the possibilities for implementing your project with you. As soon as all the preparations have been completed, we build your tank farm. The entire process, from the customized project configuration to the automation technology, installation, commissioning, completion and inspection of your system, is carried out by PURPLAN. Naturally, we are always available to you as a competent contact partner.


We will be happy to arrange a non-binding initial consultation in which we will advise you on all relevant information about your project. We will then provide you with a quote with all the details and costs. We look forward to hearing from you!