Water Quality Requirements for Industrial Water Cooled Chillers
Sep 11, 2025
Water cooled chillers are essential equipment in the refrigeration industry, widely used in industrial production and commercial buildings. Water chillers are primarily composed of a compressor, condenser, evaporator, and expansion valve, working together in a refrigeration cycle to transfer heat and achieve cooling effects. In industrial production, water-cooled chillers precisely control process temperatures; in commercial buildings, they create a comfortable indoor environment.
However, the stable operation of a water-cooled chiller is closely related to water quality. Proper water quality is crucial for its efficient operation and extended lifespan.
1. pH Level
The ideal pH range for water is between 6.5 and 8.5. Water with a pH below 6.5 is acidic and can corrode the chiller’s metal components. Water with a pH above 8.5 is alkaline and can lead to scaling, which affects the chiller's performance.
2. Water Hardness
Water hardness is another critical factor. The total hardness should not exceed 200mg/L (calculated as calcium carbonate). High hardness levels can lead to the formation of scale, reducing cooling efficiency, increasing energy consumption, and even causing blockages in the pipes.
3. Turbidity
Turbidity should be kept below 5 NTU. Higher turbidity can cause suspended particles to wear down equipment, clog filters, and reduce heat exchange efficiency.
4. Microorganisms
Microbial content must also be carefully monitored. Excessive microbial growth can result in biological slime buildup, which corrodes equipment, decreases heat exchange efficiency, and causes blockages in pipes.
High quality water is crucial for the optimal performance of a water cooled chiller. Hengde, with its extensive experience in refrigeration equipment development and production, offers water cooled chillers that not only deliver excellent cooling performance but also consider water quality compatibility. We provide comprehensive water quality treatment advice and equipment maintenance plans, helping industries meet their cooling needs efficiently and reliably. Hengde has earned a strong reputation in the refrigeration market for its high-quality products and services.
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