Package families (typical)
Nitrite/borate (where permitted), molybdate programs, azole for copper alloys, and buffered film-former blends.
Product Water Treatment
Corrosion Inhibitor (Closed Loop)
Inhibitor blend for closed-loop systems—supports corrosion control on mixed metallurgy by promoting passivation films, buffering water chemistry, and maintaining measurable residuals (package dependent).
HVAC / chilled water
Hot water loops
Steel + copper alloys
Residual monitoring
Drum / IBC / bulk
Packaging: drums / IBC / bulk (as applicable)
Documentation: SDS / COA / TDS on request
Lead time depends on chemistry package, lane & volume
Commercial note: Closed-loop programs are typically sized by system volume and refill rate. Share your loop volume (m³), metallurgy, and operating temperatures—so we can propose a passivation + maintenance plan and quote a realistic annual consumption.
What it does
Closed-loop systems are designed to minimize oxygen ingress and contamination. In practice, makeup water, leaks, maintenance work, and mixed metallurgy can introduce corrosion drivers. Closed-loop inhibitors help control corrosion by forming protective films, buffering pH, stabilizing residuals, and protecting copper alloys when present (package dependent).
Passivation support
Initial conditioning can help establish protective films faster after commissioning, refill, or major maintenance events.
Mixed-metallurgy control
Packages can be tailored for carbon steel + copper/brass + stainless; aluminum compatibility is package-specific—confirm.
Low-consumption programs
Because loops are “closed,” properly maintained systems typically consume less chemical over time than open towers.
Typical systems
HVAC chilled water loops, hot water loops, district heating/cooling circuits, process closed circuits, and jacket water systems (depending on materials and temperature).
Common corrosion issues
General corrosion on steel, pitting at oxygen entry points, copper corrosion/staining, galvanic corrosion at mixed-metal joints, and under-deposit corrosion where particulates accumulate.
Note: Final chemistry selection and control limits must be validated against your loop design, operating temperature, and plant procedures.
Applications
Typical usage patterns. Tell us your loop design and constraints and we’ll align the right specification.
- HVAC chilled water loops (commercial buildings, industrial plants)
- Hot water loops and district heating/cooling (materials and temp dependent)
- Process closed circuits (equipment cooling jackets, recirculating process loops)
- Commissioning and post-maintenance passivation support (program dependent)
Best practice approach (typical)
A stable closed loop program typically includes: (1) initial cleaning/flush (if needed), (2) fill and passivation dosing, (3) residual monitoring plan, (4) periodic sampling and top-up based on makeup events.
Technical notes for specification
Procurement-ready points for aligning the right closed-loop inhibitor package and documentation set.
Temperature matters
Operating temperature affects corrosion kinetics and inhibitor selection—share min/typical/max loop temperature.
Contamination control
Particulates, flux oils, and oxygen ingress can defeat inhibitors—flushing/filtration and makeup control are critical.
COA items commonly requested
Appearance, pH (as supplied), density/specific gravity, and package-specific actives (where applicable), plus QC markers agreed in the offer. Final COA lines depend on grade and customer requirement.
Typical specifications & formats
Values depend on grade and customer requirements. Confirm details on quotation.
Form
Liquid concentrate (most common)
Appearance
Clear to amber liquid (typical; varies by package)
pH (as supplied)
Grade dependent (confirm on offer)
Density
Grade dependent (confirm on offer)
Active content
Package-dependent (e.g., nitrite/molybdate/azole where applicable)
Packaging
Drums / IBC / bulk (as applicable)
Selection input
- Loop type + volume (m³)
- Metallurgy + any aluminum components
- Fill water analysis (pH, Cl-, conductivity/TDS)
- Operating temperature range
Commercial/QA inputs
- Required documents (SDS/COA/TDS)
- COA parameters for release
- Packaging and delivery cadence
- Destination & Incoterms
Specifications may vary depending on batch, origin, and packaging selection. Always refer to the SDS/TDS for the exact grade supplied.
Supply, documentation & procurement lane
Procurement-ready supply with defined documentation, packaging, and lane options.
Packaging options
Drums and IBC are common. Bulk supply can be arranged depending on lane, region, and volume.
Documentation pack
SDS + COA on request; TDS for many grades. Compliance statements per customer requirement.
Lead time & Incoterms
Quoted per destination and lane (EXW/FOB/CFR/CIF/DDP where feasible). Lead time depends on package and volume.
To speed up quoting
Send loop volume + metallurgy + operating temperature + fill water analysis. We’ll reply with a matched inhibitor package, suggested control limits, packaging options, and a commercial offer.
Request quotation
Share your closed-loop details and we’ll propose a suitable inhibitor package (and monitoring approach) aligned to your metallurgy and corrosion control targets.
System details
Loop type, volume (m³), metallurgy, operating temperature range, maintenance rhythm.
Water quality
Fill water: pH, hardness, chlorides, conductivity/TDS; any glycol content if used.
Commercial inputs
Annual or one-time volume, packaging, destination/port, Incoterms, SDS/COA/TDS requirements.
Tip: If you have a loop sample report (iron/copper), corrosion coupon targets, or photos of rust/sludge, attach it—this helps match the best package quickly.