Propylene Glycol

95% Inhibited Propylene Glycol is a low hazard, propylene glycol based heat transfer fluid concentrate for use in closed water systems. The corrosion inhibitor package provides an effective combination of inhibitors for steel, cast iron, copper, cupric alloys, and aluminum. 95% Inhibited Propylene Glycol is designed to be used in systems requiring freeze protection. Comes clear or with a pink fluorescence.

DOWFROST is a propylene glycol-based fluid that contains a specially formulated package of industrial inhibitors that help prevent corrosion. Because propylene glycol fluids have low acute oral toxicity, DOWFROST is often used in applications where contact with food or beverage products could occur. Specific applications for DOWFROST include: Cooling liquid foods, Packaging carbonated beverages, Fermentation cooling, Process heating, Solar heating. Custom blends readily available in any container size. Convenience of 1, 5, and 55 gallon containers

Biocides

FORMULA 4603 (1.5% isothiazolin) is used in recirculating cooling water systems and closed loop systems to control microbial growth. This is one of the best biocides over a wide pH range against the microorganisms typically found in these systems.

FORMULA 4615 (30% carbamate blend) is used in recirculating cooling water systems and closed loop systems to control microbial growth. This is one of the best biocides over a wide pH range against the microorganisms typically found in these systems.

FORMULA 4621 (5% DBNPA, 2,2-Dibromo-3-Nitriloproprionamide) is used in recirculating cooling water systems and closed loop systems to control microbial growth. This is one of the best biocides over a wide pH range against the microorganisms typically found in these systems.

FORMULA 4634 (4% Terbuthylazine, 2-(tert-butylamino)-4-chloro-6-(ethylamino)-s-triazine) is used in recirculating cooling water systems to inhibit algal growth. This is one of the best biocides over a wide pH range and is normally fed in conjunction with a broad spectrum microbiocide.

FORMULA 4645 (45% glutaraldehyde) is used in recirculating cooling water systems and closed loop systems to control microbial growth. This is one of the best biocides over a wide pH range against the microorganisms typically found in these systems.

Cooling Tower Chemicals

The purpose of a cooling tower or condenser system is to reuse water and reduce water usage. Determining the conductivity set point of the water systemis important to maximumyour water reuse. Conductivity is the electrical resistance measurement of the dissolved solids, suspended solids, and dissolved gases of the water and is expressed in mico ohms (uomhs).

Corrosion inhibitors and scale prevention chemicals are used to maximize the number of cycles the water is used. The definition of cycles is the number of times the water is reused in the water system.

For example, if the makeup water to the cooling tower is 100 uomhs and your tower recirculating is 800 uomhs, your cycles are calculated as follows: Cycles = Cooling Tower Recirculating Conductivity / Cooling TowerMake-up Water

For this Example: Cycles = 800 uomhs / 100 uomhs or 8 Percent blowdown for the tower is calculated the following way:

Percent Blowdown = ( 1 / Cycles) x100 For this Example: Precent Blowdown = (1/8) x100 = 12.5%

This means 12.5% of the water is being lost to blowdown.

Knowing your tower cycles is important for minimizing water usage and reducing the amount of water lost to blowdown. Determining proper cylces or conductivity set point is dependent on the water alkalinity and calcium. Every systemis unique.