GLS Tanks International GmbH
About
GLS Tanks International GmbH, based in Heidenreichstein, Austria, has spent over 30 years specializing in bolted glass-lined steel tanks, vessels, and silos for liquid and bulk material storage. The company's distinguishing technology is the PUESTA powder-electrostatic enamelling process, where glass powder is electrostatically applied to steel panels and fused at temperatures exceeding 800°C, producing a durable, corrosion-resistant, and hygienic surface rated for a design life beyond 35 years. GLS Tanks is the only manufacturer worldwide with PUESTA production facilities. Their modular bolted panel system uses a checkered bolting pattern for efficient field assembly and disassembly, stainless steel center point plates for mechanical integrity, and specialized ring groove connections at the wall-to-foundation junction to ensure full seal integrity. Panels are produced in PI/2 and 2/3 PI module lengths, allowing flexible tank diameters. The S700 PRO enamel coating delivers high resistance and elasticity without nickel. Applications span potable water reservoirs, wastewater treatment and storage, biogas digesters, slurry storage, oil storage, and aquaculture. The company provides turnkey service from engineering and planning through manufacturing and on-site assembly, backed by ISO 9001, ISO 14001, ISO 1090, NSF drinking water certification, and NS 9416 aquaculture compliance.
Key Products
Modular storage tanks assembled from glass-lined steel panels using a checkered bolting pattern, available in virtually any diameter, for water, wastewater, biogas, and industrial liquid storage applications.
Pressure-rated glass-lined steel vessels for process applications requiring corrosion resistance and hygienic surfaces.
Bulk material storage silos constructed from glass-lined steel panels for dry granular and powder storage with corrosion protection.
Proprietary high-resistant, elastic, nickel-free enamel formulation applied via PUESTA powder-electrostatic process providing superior corrosion protection and hygienic surfaces.
Wide range of accessories including stainless steel center point plates, ring groove foundation connections, angle connections, and custom-made solutions for tank assemblies.
Complete project planning service covering tank design, site assessment, and engineering specifications for custom storage solutions.
Professional on-site assembly teams providing complete installation of bolted glass-lined steel tank systems worldwide, including delivery and commissioning.
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