#1 in Distributing Specialty
Chemicals & Equipment

Email Us Today Free shipping on
all chemicals (48 states)
Home > Newsletters > Chiller Corrosion

Chiller Corrosion

If you are experiencing corrosion or or your water is red within your closed loop industrial chiller system, you may consider using a chemicals to minimize corrosion and to prevent bacteria development.

Let's take an example of a 2,500 gallon chilled loop system that operates at 65F and the water is a deep red and possibly filled with bacteria such as slime and algae.

Equipment Required
The first thing you need to determine is if any other chemicals were previously used within the system such as a corrosion inhibitor or glycol. If not (which is not uncommon), the first thing is you need to consider installing a side stream filter system such as a Neptune VTF-2HP pot feeder. This feeder is used to filter the water through a side stream loop and it may be used to periodically add chemicals to the system. Now, if you have been using chemicals you need to obtain the SDS in order to determine what was injected into the system before continuing on to a solution.

Chemicals Required:
If you are not using chemicals most likely you are experiencing corrosion and bacteria growth within the process water. Since the water is above 45F you typically want to stay away from a Nitrite based corrosion chemical and instead use a Molybdate based corrosion inhibitor. Both chemicals are great when controlling corrosion on iron, but Nitrite may be a food source for bacteria development above 45F.

ChemWorld 882 is an excellent choice as a "Nitrite" free corrosion inhibitor. A 5 gallon pail is enough to treat 5,000 galon of fresh. water. Add 3 gallons of ChemWorld 882 upon startup and is monitored with a molybdate test kit. You only add more chemicals if water is lost or water is accidently dumped from the system.

The second chemical you require is a non-oxidizer chemical. Gluteraldahyde is your safest choice. This product should initially be feed at roughly 1/2 gallon to kill off any bacteria. After the initial feed, bacteria test paddles may be used to monitor bacteria development. If bacteria levels exceed 10^3 simply slug feed 1/2 gallon of Gluteraldehyde and wait a few days and check again. You only need to add more chemical if bacteria levels spike.

Both chemicals are compatible with ethylene glycol propylene glycol.
Sort By:
Page of 1
ChemWorld 882 - 5 to 55 Gallons Neptune VTF-2HP Sodium Molybdate Test Kits
"Nitrite Free" Corrosion Inhibitor - 5 to 55 Gallons
Our Price: $489.99
Sale Price: $309.99
Savings: $180.00
Neptune VTF-2HP By-Pass Feeder
Our Price: $309.99
Sale Price: $287.99
Savings: $22.00
Sodium Molybdate Test Kit as (Na2MoO4)
Our Price: $64.99
Sale Price: $59.99
Savings: $5.00
"Nitrite Free" Corrosion Inhibitor - ChemWorld 882 - 5 to 55 Gallons Neptune VTF-2HP By-Pass Feeder Sodium Molybdate Test Kits
- 1 drop = 2, 5, or 10 ppm.
Total Bacteria Dipslides
Total Bacteria and Yeast/Fungi Dipslides - Box of 10
Our Price: $89.99
Sale Price: $59.99
Savings: $30.00
Total Bacteria Dipslides - Box of 10