Plastic and FRP tanks for corrosive liquids
Tanks, vessels, reactors and stacks built in thermoplastics and fibreglass-reinforced polyester (FRP) for the safe storage of aggressive chemicals. Capacities up to 200,000 litres.
Engineered to store the most aggressive chemicals
TECNIUM designs and manufactures tanks, vessels, reactors and storage equipment in thermoplastics and FRP for industries where safety and corrosion resistance are top priorities.
Why choose TECNIUM tanks?
With nearly 70 years of experience, TECNIUM offers proven storage solutions for acids, alkalis, hypochlorites, solvents and hundreds of other aggressive chemicals used in industrial processes. FRP tanks are widely used in chlor-alkali manufacturing, fertilisers, wood pulp and paper, metal extraction, electroplating, food processing and air pollution control at municipal wastewater and water treatment plants.
- Vertical and horizontal tanks, vessels, reactors and stacks
- Capacities from 500 to 200,000 litres
- Available in PP, PE, PVC, PVDF, E-CTFE, PFA, FEP and FRP
- Pressure equipment compliant with PED Directive (up to 6 bar / vacuum up to 750 torr)
- Complementary plastic valves, GRP gratings, ladders and handrails
- Legalisation projects according to APQ-6 and IPPC regulations
Storage solutions for every requirement
From high-capacity tanks to specialised valves and APQ-6 legalisation projects, our range covers every storage need for corrosive liquids.
Vertical Tanks
Tanks, vessels, reactors and stacks in plastic materials (thermoplastics, FRP and/or dual-laminate). Capacities up to 200,000 litres. Pressure equipment compliant with the Pressure Equipment Directive (PED), suitable for standard tanks, reactors, vessels, silos, decanters and thickeners.
Valves, Grating, Stairs and Railings
Range of plastic valves for automatic regulation, safety and relief. Gratings, ladders and handrails manufactured in fibreglass-reinforced polyester. Corrosion-resistant level indicators with optical visualisation, continuous electric reading or alarm functions.
APQ-6 Installation
Studies and legalisation projects for chemical storage installations in compliance with the current APQ-6 standard. Complete turnkey service of engineering, documentation and administrative processing for storage, transfer, truck unloading, dosing and process applications.
Thermoplastics and composites for maximum resistance
All TECNIUM tanks are available in a wide selection of materials, each chosen for its specific chemical and thermal resistance properties.
PP
Excellent thermal and chemical stability. Resistant to many acid solutions, salts and organic solvents. Highly cost-effective for large-capacity tanks.
Up to 90 °C continuousPE
Good chemical and mechanical resistance. Ideal for storage of dilute acids, alkalis and saline solutions. Cost-effective and versatile.
Up to 60 °C continuousPVC
High resistance to acids, bases and saline solutions. UV-stabilised for outdoor installations. Widely used in storage tanks across many industries.
Up to 50 °C continuousPVDF
Fluorinated plastic with exceptional chemical resistance against virtually all inorganic acids and alkalis. Maximum durability for extreme environments.
Up to 120 °C continuousE-CTFE
Fluorinated thermoplastic with maximum chemical resistance. Weldable in inert atmosphere. Ideal for tanks handling the most aggressive chemicals.
Up to 150 °C continuousFRP
Composite combining high chemical resistance with excellent mechanical rigidity. Ideal for large tanks, stacks and structural components.
Up to 120 °C continuousCommon questions about TECNIUM plastic tanks
TECNIUM manufactures vertical and horizontal tanks, vessels, reactors, decanters, rectangular vats and stacks in thermoplastics (PP, PE, PVC, PVDF, E-CTFE) and in fibreglass-reinforced polyester (FRP). We also produce dual-laminate tanks (thermoplastic liner with FRP exterior reinforcement) for applications requiring maximum mechanical strength combined with chemical protection.
Our tanks reach capacities of up to 200,000 litres. The design is adapted to each installation: from small 500-litre dosing tanks to large storage tanks for industrial tank farms. Each tank is custom-sized according to the chemical, temperature, pressure and applicable regulations.
Yes. TECNIUM designs and manufactures pressure equipment in accordance with the Pressure Equipment Directive (PED 2014/68/EU). Tanks are designed and built according to EN, ASTM, ASME, ASCE, UIC and API standards, with the technical documentation and certifications required for legalisation.
APQ-6 is the supplementary technical instruction that regulates the storage of corrosive liquids in Spain. TECNIUM offers a complete legalisation service, including installation study, technical project, manufacture of the tanks in compliance with the regulation, installation, technical documentation and administrative processing with the competent authority to obtain the certificate of conformity.
Yes. TECNIUM offers a complete range of accessories including plastic valves (automatic regulation, safety and relief), FRP grating, ladders and handrails in fibreglass-reinforced polyester, and anticorrosive level indicators with visualisation, continuous electric reading or alarm functions. This allows an integrated solution from a single supplier.
Material selection depends on the chemical to be stored, its concentration, temperature and installation conditions. PP is very cost-effective for acids and alkalis up to 90 °C; PVDF offers universal resistance up to 120 °C; E-CTFE provides maximum resistance up to 150 °C; and FRP is ideal for large tanks that require structural rigidity. Our engineers perform free material compatibility assessments to recommend the optimal solution.
Need help sizing your tank?
Our engineering team will assess your storage requirements and recommend the optimal tank type, material and configuration for your installation.
