Monday, January 10, 2011 1:38 PM
Knowledge Center
SCALE GUARD
Comparison between Scale Guard and Water Softener
| S. NO. | FACTORS | WATER SOFTENER | SCALE GUARD |
| 1. | Composition of Water | It reduces the pH of water thereby making it more corrosive in nature. | The water remains neutral only the physical properties changes. |
| 2. | Recurring Cost | Heavy monthly expenses in procurement, inventory, storage, handling and supervision of chemicals and salts to be dozed. | No Recurring Cost |
| 3. | Prevention of Scale | Water softener is designed for a particular hardness level (max 600 ppm) | Prevents scale formation and removes existing scales from pipelines and condenser tubes. It has treated water hardness upto 2000 ppm. |
| 4. | Maintenance | Special manpower required for regeneration of resins and operation. | No man power required as SG is an online equipment. |
| 5. | Man Power | Requires extra manpower for monitoring and dosing of chemicals. | No man power required as SG is an online equipment |
| 6. | Energy Consumption | Needs electrical energy for operation. | No energy required for operation thus saves the electricity bill. |
| 7. | Pollution | Disposal of untreated Brine water is a major problem. | No pollution |
| 8. | Inventory | Space for softener is required | No space is required as it is installed online. In the pipe line after the pump and before condenser |
| 9. | Pay back | Adds on recurring cost per year. | Depending on water hardness payback period can be from 3 months to 1 year |
Why do I need a Scale Guard as I have already installed a water softener
- For raw water generally softening plant is used to reduce the hardness, but this hardness increases in the re-circulating water due to evaporation and heat exchange that takes place in the circuit of the cooling tower
- It is essential to treat re-circulating water as this is the water which goes to the chillers/condensers
- The condenser is the heart of a chiller’s mechanical system so you need to protect them at any cost.