Denton Ionwave #9166

Cleaning and dielectric electrode replacement for two Wedeco PDO-6000 ozone generators

The City of Denton is seeking a contractor to refurbish two Wedeco ozone generators at the Lake Ray Roberts Water Treatment Plant. - Government buyer: City of Denton, Texas — Purchasing office; work site is the Lake Ray Roberts Water Treatment Plant in Aubrey. - OEM: Wedeco. The City requires new, genuine Wedeco EFFIZON GC (Glass Core) electrode assemblies; substitutions are not allowed. - Main products: Two full-vessel electrode sets, one for each Wedeco PDO-6000 generator, plus at least 2% spare electrodes per vessel set. Associated links, fasteners, PTFE spacers, gaskets, high-voltage bushings, and tube-cleaning materials are also required as needed. No part numbers are specified. - Services: Clean both generator vessels and internal components; replace the electrodes and associated hardware; report damage, corrosion, or cooling-water intrusion; then purge, test, and return each generator to service. Work must be performed on one generator at a time to maintain ozone disinfection. - Technical requirements: The EFFIZON GC assemblies have a glass center rod and conductive stainless-steel mesh with Intelligent Electrode Protection; they do not use electrode fuses and must fit the existing vessels without modifications. The contractor supplies labor, tools, equipment, supervision, consumables, PPE, and temporary protection. - Experience, safety, and warranty: Technicians must have relevant Wedeco PDO-series or comparable tube-type ozone generator experience. The solicitation calls for examples and references for at least three comparable municipal projects and a written work plan. Safety measures include lockout/tagout, high-voltage verification and grounding, and precautions for oxygen-enriched equipment. Minimum warranties are one year for workmanship and ten years for electrode assemblies, including replacement labor and restart. - Term: One initial year, with four optional one-year renewals and a possible extension of up to six months.

Description

The City of Denton is seeking proposals for cleaning the internals of two ozone generator vessels at the Lake Ray Roberts Water Treatment Plant and replacing their dielectric electrode assemblies and associated hardware. The contractor will provide the materials, labor, equipment, and supervision needed to clean, reassemble, test, purge, and return each generator to service, completing one generator at a time to maintain ozone disinfection. The scope specifies new genuine Wedeco EFFIZON GC electrode assemblies, with no substitutions, and includes safety, warranty, and contractor qualification requirements. Proposals and cost solutions must be submitted sealed through IONWAVE or by hard copy; email submissions are not accepted.

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