WesTech (packaged)

WesTech Engineering, LLC, now operating under the Swire Water group, is a large-scale manufacturer of water and wastewater treatment equipment and liquid-solids separation systems. Founded in 1973 and headquartered in Salt Lake City, Utah, the company holds ISO 9001 certification and employs over 500 people. WesTech's product portfolio spans clarifiers, thickeners, filters, biological treatment systems, and package plants. Key clarifier products include the CONTRAFAST high-rate clarifier/thickener, CONTRAFLO solids contact clarifier, COP spiral blade and suction header clarifiers, SuperSettler inclined plate clarifier, R5 dissolved air flotation clarifier, and RapiSand ballasted flocculation system. Thickener lines cover the AltaFlo rake-less high-rate thickener, HiFlo high-rate thickener, Deep Bed and HiDensity paste thickeners, Titan traction thickener, and TOP Thickener Optimization Package with EvenFlo feedwell and AirLift feedwell dilution. Filtration products include CenTROL gravity filters, SuperDisc disc filters, SuperDrum drum filters, SuperSand continuous backwash sand filters, MULTICELL horizontal pressure filters, LAZERFLO low-profile underdrains, and MULTIBLOCK filter underdrains. Package water treatment plants include the Trident HS, HSC, and HSR lines, the Tri-Mite and Aquarius systems, and the Water Boy package plant. Biological treatment offerings include the OxyStream oxidation ditch, STM-Aerotor BNR system, BioTreater, and Landox channel aeration. Acquired brands include General Filter, Microfloc, WWETCO, and Nordic Water Products (Zickert Shark sludge removal). The company also provides mobile water treatment systems, design-build services, plant acquisition and operations, and aftermarket drive replacement and field service. Markets served encompass municipal water and wastewater, mining and minerals, chemical and petrochemical, power generation, and AI data centers.