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CI WT No. 34 – Molybdate Boiler Treatment for Closed-Loop and Steam Systems
Molybdate Corrosion Inhibitor for Closed-Loop Heating, Chilled Water, and Steam Boiler Systems
CI WT No. 34 is the molybdate-based treatment for chilled water loops, hot water systems, and low- to moderate-pressure steam boilers that operate under variable temperatures, changing flow rates, and intermittent stagnation. Sodium molybdate forms a stable protective oxide film on internal metal surfaces, making it a strong choice where the operator wants dependable passivation across operating conditions that are less steady than a conventional closed loop. Where No. 20 and No. 25 are nitrite-based options for more conventional system profiles, No. 34 is the film-forming treatment for systems that need corrosion protection to hold when conditions shift. In steam applications, pair it with CI No. 45 Corrosion Inhibitor to extend protection into condensate lines and steam distribution piping, so both the boiler side and the condensate side are covered. Used properly, it helps prevent the corrosion and scaling that quietly reduce heat transfer, shorten equipment life, and turn variable systems into recurring maintenance problems.
$809.00 / 20 L pail
Technical Data
Technical Data
Technical Properties
CI WT No. 34 Molybdate Corrosion Inhibitor
Molybdate-based treatment for closed-loop heating, chilled water, and low- to moderate-pressure steam systems that operate under variable temperatures, changing flow rates, and intermittent stagnation. Built for operators who need corrosion protection that holds when system conditions do not stay steady.
Product Type
Molybdate Corrosion Inhibitor for Closed-Loop and Steam Systems
Technology Base
Sodium Molybdate Film-Forming Passivation Chemistry
Primary Function
Prevent Corrosion and Scale in Variable-Condition Boiler and Loop Systems
Application Role
Passivation Treatment for Chilled Water, Hot Water, and Low- to Moderate-Pressure Steam Systems
Performance Focus
Stable Film Protection Under Changing Flow, Temperature, and Idle Conditions
Operational Mechanism
Sodium Molybdate Forms a Stable Protective Oxide Film That Holds When System Conditions Shift
Process Target
Chilled Water Loops, Hot Water Systems, and Low- to Moderate-Pressure Steam Boilers
Operational Benefit
Maintains Corrosion Protection Where Less Stable Treatment Programs Can Lose Hold as Conditions Change
Use Environment
Commercial Buildings, Institutional Plants, Industrial Process Loops, and Variable-Duty Heating and Cooling Systems
Program Fit
Film-Forming Molybdate Option for Systems with More Demanding or Variable Operating Profiles
Maintenance Value
Helps Prevent the Corrosion and Scaling That Quietly Reduce Heat Transfer and Turn Variable Systems into Recurring Maintenance Problems
Monitoring and Feed
Compatible with Automated or Manual Feed Systems and Standard Water Treatment Monitoring Protocols
Operational Notes
• Best used where system temperatures, flow rates, and idle periods are not consistent enough for a simpler conventional loop profile
• Molybdate passivation is the reason this product exists — stable film protection when conditions shift is the selling point
• Distinct from No. 20 and No. 25: those are nitrite-based options for more conventional system profiles, while No. 34 is the variable-condition molybdate choice
• In steam service, pair with CI No. 45 Corrosion Inhibitor so the treatment program extends beyond the boiler into condensate lines and steam distribution piping
• New systems should be brought up at higher initial concentration to establish the protective molybdate film before dropping to maintenance levels
• Strong fit where operators want corrosion protection to remain dependable even when daily operating conditions are never quite the same
Practical Fit
CI WT No. 34 is the molybdate passivation treatment for systems that do not live under textbook conditions. It belongs where flow changes, temperatures drift, sections of the loop sit idle, and the operator needs corrosion protection to stay in place when a more conventional treatment profile may not be the strongest fit.
This block is built directly from the positioning you provided: a molybdate-based treatment for chilled water loops, hot water systems, and low- to moderate-pressure steam boilers, built around stable oxide-film formation under variable temperatures, changing flow rates, and intermittent stagnation. It also preserves the line architecture you established: No. 20 and No. 25 are the nitrite-based options for more conventional system profiles, while No. 34 is the molybdate choice for systems where corrosion protection has to hold when conditions shift. In steam applications, the block also reflects your instruction to pair with CI No. 45 Corrosion Inhibitor for condensate-side protection.
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