Closed Loop Treatment
Closed Loop Systems are designed to supply either hot or chilled water to a heat exchanger, and then return the water to the point of origin to repeat the process. Regardless of how the system is designed, it will need the following protection.

Corrosion Protection: ServeTech offers a comprehensive line of closed loop treatments that give you a sure defense against closed loop corrosion, fouling and microbiological growth. Our product line includes a wide array of corrosion inhibitors to prevent corrosion to all system metals, including ferric and yellow metal components.

Microbiological Control: Even though the system is closed, microbiological attack can occur. ServeTech's closed loop biocides control bacteria populations, including aerobic bacteria and anaerobes like sulfate reducing bacteria (SRB).

Filtration: Filtration of closed loops can enhance performance, reduce chemical consumption and reduce periodic maintenance by removing impurities from the system. Filtration systems can be either full-flow or side-stream, (which can reduce the cost of filtration equipment). ServeTech offers a variety of application-specific filtration options, including a complete line of filtration equipment for closed loops, including bag and cartridge filter housings and replacement media. (Bags & cartridges capable of removing particles down to less than 0.5 microns are also available.)
Closed Loop Water Treatment Products & Services
Controls &
Analysis &
Consulting &
Cleaning & Descaling
Corrosion & Deposit Inhibitors
Glycol & Hydronic Fluids
Non-Acid Treatments
Non-Oxidizing Biocides
Oxidizing Biocides
Passivation Products
Bypass/Shot Feeders
Chemical pumps
Filtration & Separation
Glycol - Feeders
Solenoids & Ball Valves
Water Meters
Corrosion Monitoring/Analysis
Deposit Monitoring/Analysis
Laboratory Analysis
Micro & Legionella Tests
Test Kits
Water & Mineral analysis
Cleaning (Equipment)
Operator Training
Plant/Facility flow studies
Treatment Design Services
The material provided in this bulletin is informational in nature and is not intended to be instructions for a particular location or installation. There is no guarantee, warranty or other assurance of fitness of purpose or operational performance or results either express or implied. The user assumes all risk in following the information provided. Always read and follow product safety and performance instructions on product labels, Material Data Safety Sheets and those provided specifically for your requirements by your ServeTech representative.
ServeTech Water Solutions, Inc. - Wheaton, IL - - - 630-784-9050