Nar-Shield

Nar-Shield Cooling Tower Water Treatment

Nar-Shield^TM

A unique scale inhibitor for cooling towers and evaporative condensers, and it is extremely effective in hard or highly alkaline water. Nar-Shield unique Liquid Scale Inhibitor is stable and does not form any orthophosphate sludge.

Description

Nar-Shield is a water conditioners , multifunctional liquid for cooling water treatment that contains no chromates or heavy metals and is therefore environmentally safe. Nar-Shield offers dispersion as well as scale and corrosion control in one simple-to-use chemical. Nar-Shield utilizes polymer and phosphonates for scale control. Corrosion control is maintained by the formation of a protective film on metal surfaces. Nar-Shield also contains dispersants and peptizing agents to keep heat transfer surfaces free of insoluble materials such as silt, sand and air-borne dirt particles. Continuous type treatment with Nar-Shield recommended in all cases for maximum results. The average treating rate for Nar-Shield is 20-50 ppm, although higher rates may be required under severe conditions.

Benefits

*It prevent algae, iron bacteria, and other slime forming microorganisms
* Highly concentrated biocide
*Contains no chromates or heavy metals
*Easy-to-use liquid
*Does not form any orthophosphate sludge

Directions for use

Should be placed in a feeder on the make-up water line, the crystals dissolve about 25%, per month. For most waters, the initial charge is 1/4 pound of crystals per ton of refrigeration. Each month 25% of the initial charge should be added to the feeder. Many users prefer Nar-Shield because they can add a definite amount of treatment each month when they check the system.

Packaging Size

*1-gal. bottle
*16-gal. bottle
*55-gal. drum