Peerless Industrial Group
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Nu-Calgon
Nu-Calgon 4188-11 Freeze Protectant 5 gal Clear
Freeze protectant rated from -76 to 360 degrees Fahrenheit, clear, five-gallon pail for food, HVAC and process systems
- ColorClear
- Protects systems down to -76 °F freeze point
- Withstands continuous heat up to 360 °F
- Clear formula simplifies visual inspection of fluid condition
- Five-gallon pail supplies multiple service jobs
- Suited for HVAC, process cooling and heating applications
Nu-Calgon 4188-11 Freeze Protectant 5 gal
This freeze protectant serves HVAC/R, process cooling and heating, and food and beverage equipment systems. The five-gallon pail supplies enough fluid for large commercial loops or multiple service calls. Contractors and facility managers use it to prevent fluid freezing and system damage during cold weather.
Temperature range -76 to 360 degrees F
The fluid remains stable from minus seventy-six degrees Fahrenheit up to three hundred sixty degrees Fahrenheit. This wide span covers deep-freeze protection and high-temperature process heating without breakdown. Consistent viscosity across the range helps maintain pump efficiency and reduces energy draw during normal operation.
Clear fluid in five-gallon pail
The clear colour lets technicians verify fluid level and condition at a glance without opening the container. A sturdy pail with a secure lid resists spills during transport and on-site storage. The wide opening simplifies pouring into reservoirs or topping up closed-loop systems.
Highlights
- Protects systems down to -76 °F freeze point
- Withstands continuous heat up to 360 °F
- Clear formula simplifies visual inspection of fluid condition
- Five-gallon pail supplies multiple service jobs
- Suited for HVAC, process cooling and heating applications
Specifications
| Brand | NU-CALGON |
|---|---|
| Color | Clear |
Questions about this item
How do I add the 5 gal pail of Nu-Calgon 4188-11 to a chilled-water loop, and what step causes most callbacks?
Drain the system, then pour the full 5 gal pail into the fill port while circulating; the step most often missed is flushing old glycol first so the -76 °F to 360 °F range stays accurate.
What replacement interval should I plan for this clear freeze protectant in an HVAC/R circuit?
Test inhibitor reserve alkalinity annually; plan a full drain and refill of the 5 gal charge every three to five years or when the reserve drops below the maker’s minimum.
At what temperature limit does this protectant stop protecting a process-cooling loop under continuous load?
The rated ceiling is 360 °F; sustained operation above that temperature degrades the fluid and ends freeze and boil-over protection.
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