Steel water tanks

Steel water tanks are a durable and efficient solution for safe, long-term water storage. NPI supplies galvanized modular steel water tanks for applications such as irrigation, aquaculture, fire protection and industrial water storage.

Our tanks are designed for long-term performance, with a space-efficient construction that is easy to transport and install. Available in over 400 standard sizes and customizable with liners, covers and accessories, they offer a reliable water storage solution for a wide range of projects.

Our galvanized steel water tanks are designed for long-term, low-maintenance water storage. Manufactured from high-quality steel and premium lining materials, they provide a durable solution for businesses that need a reliable and efficient water buffer.

The closed and impermeable design helps reduce water loss through evaporation and supports better control of water levels and water quality. Where needed, the system can also be combined with filtration or treatment solutions.

Despite their robust construction, the tanks are highly versatile. They can store up to 2,500 m3 of water while taking up relatively little space on site. Thanks to their modular, prefabricated design, they are easy to transport and straightforward to install.

Our steel water tanks are suitable for a wide range of water storage applications across agricultural, industrial and commercial environments.

They are commonly used for irrigation, fish farming, agriculture, industrial water storage, civil engineering, firefighting, rainwater harvesting and drinking water storage.

NPI offers steel water tanks in a wide range of diameters and heights, with over 400 standard sizes available. This allows us to provide a suitable water storage solution for many different sectors, including agriculture, horticulture, aquaculture, fire protection and wastewater management.

Every project has its own technical requirements. That is why our steel water tanks can be customized in size, materials and configuration.

We tailor each tank to the intended application, available space and project conditions. Options include liners, covers, outlet configurations and additional protective solutions, so you get a water storage system that matches your exact requirements.

Our steel water tanks are manufactured as prefabricated kits for efficient transport and straightforward on-site assembly. Each tank is delivered as a complete construction package with the required installation materials, excluding tools.

Our custom-made tanks are supplied as standard with cord, protective fleece, clamp profiles and the Install+ fixing system. We can also prefabricate outlets in the required diameter and weld them into place at the specified location.

Thanks to their compact transport dimensions and modular construction, our tanks are highly suitable for export and international projects. Every system is delivered with clear installation instructions for efficient assembly on site.

Water storage systems must meet strict standards for safety, strength and water quality. NPI is KIWA certified for processing films and works in compliance with recognised quality and safety standards, including ISO 9001, CE and VCA.

All steel configurations are tested using advanced calculation models and are designed with a minimum safety margin of 40%. This provides additional strength, durability and reliability for demanding water storage applications.

At NPI, quality, safety and continuous improvement are central to everything we do. Through certifications, quality controls, testing and clear operational procedures, we deliver reliable water storage solutions for long-term use.

We offer:

A reliable export partner for international projects
NPI’s AEO certification supports efficient and reliable international shipping. This certification helps reduce physical and administrative inspections and can lead to faster customs processing and lower administrative costs.

For customers, this means a smoother export process and a trusted logistics partner for international water storage projects.

CE compliance and declarations of performance
The CE marking confirms that relevant products comply with applicable EU legislation for safety, performance and environmental requirements. For relevant ENPEX FPP films, NPI provides Declarations of Performance that can be viewed or downloaded below.

Declaration of Performance NPI Enpex FPP 0.60
Declaration of Performance NPI Enpex FPP 0.75
Declaration of Performance NPI Enpex FPP 1.00

Sustainability is an important part of how we design, manufacture and deliver our water storage solutions. Our tanks and liners are built for a long service life, helping reduce replacement frequency and long-term material use.

Where possible, we prioritise recyclable materials, reuse packaging materials and work with production methods that minimise emissions and avoid aggressive chemical solvents or heavy-metals. We also continue to improve our facilities and operations through energy-efficient lighting, solar power and electric lease vehicles.

Our steel water tanks help businesses and communities create a reliable water buffer for future use. By storing water for periods of drought, peak demand or operational continuity, they reduce dependence on less sustainable water sources and support smarter water management.
This makes them valuable for sectors such as horticulture, agriculture, aquaculture and food processing, where water availability is essential.

NPI’s galvanized modular steel water tanks combine durability, flexibility and long-term performance in one efficient water storage system. Whether you need a solution for irrigation, aquaculture, fire protection or industrial water storage, we help you find the right tank configuration for your project.
Request a quote or contact our specialists for tailored advice.