Purchase and Installation of Wastewater Decanter Centrifuge

The City of Rosenberg is requesting bids on the purchase and installation of a wastewater decanter centrifuge system at Wastewater Treatment Plant 1A under ITB #2027-09B, with proposals due October 15, 2026 at 2:00 PM and questions due October 9, 2026 at 5:00 PM.

The centrifuge must be new, heavy-duty, and continuous-operation with a minimum 24-inch bowl diameter, 96-inch bowl length, maximum bowl operating speed of not less than 3,000 RPM, and capability of producing not less than 3,067 G centrifugal force. Primary construction must be Duplex 2205 stainless steel or equivalent. The system must include adjustable weir mechanisms, continuous internal conveyor with wear protection, independent electric motors (primary motor rated at not less than 125 HP and back drive motor rated at not less than 30 HP), heavy-duty gearbox, variable frequency drives, programmable logic controller, color touchscreen operator interface, and safety systems. Pricing must be firm and inclusive of complete installation, all system components, hoses, connections, plumbing, FOB delivery to the Rosenberg location, and a minimum of three days of onsite manufacturer's technician and centrifuge operator services for start-up and commissioning. Bidders must account for all tariffs, duties, surcharges, and trade-related costs; the City assumes no responsibility for subsequent tariff changes. Pricing remains firm for one year from award, with price adjustments thereafter capped at 2.5% annually based on the Houston–The Woodlands–Sugar Land Statistical Area Consumer Price Index.

Bidders must submit specification sheets, drawings, warranty information, a minimum of four customer references from similar projects within the last five years, and current certificates of insurance meeting specified coverage limits. All responses must be submitted electronically through the OpenGov Procurement portal. The contract commences upon latest execution and continues until completion.