Phosphate Dosing Pump

dosing pump for phosphate

A phosphate dosing pump is a device used to add phosphate to water to control water quality, prevent corrosion and scale, and regulate the pH of the water.

Phosphate dosing principle

Phosphate dosing pumps add phosphate to water by precisely controlling its dosing ratio. Phosphates can form stable complexes in water that bind with metal ions in the water, preventing corrosion of pipes and equipment and preventing scale formation.


  • Water quality regulation: phosphate dosing can effectively regulate the pH value of the water, making the water neutral or alkaline, helping to maintain stable water quality.
  • Anti-corrosion: Phosphates can form a protective film that covers the surface of pipes and equipment, preventing corrosion of metal materials in contact with water.
  • Anti-scaling: Phosphates can combine with hard water components in water to prevent scale from depositing on the surface of piping and equipment, keeping the water system unclogged.
  • Environmental safety: Compared with other chemicals, phosphate has less impact on the environment and is safe to use.


  • Higher cost: Phosphates are more expensive and may increase the cost of water treatment.
  • Organic phosphorus pollution: Long-term use of phosphate may lead to the accumulation of organic phosphorus pollutants in the water body, causing certain impact on the water ecosystem.
  • Difficulty in dosing: The dosage and ratio of phosphate need to be precisely adjusted according to the specific water quality conditions, which increases the difficulty of management.

Areas of application

Phosphate dosing pumps are widely used in water treatment plants, industrial processes, cooling water circulation systems, boiler and HVAC systems, wastewater treatment plants and other fields.


HAOSH offers phosphate dosing pumps covering a wide range of industry applications and can customize chemical dosing systems to provide the highest quality water quality solutions.

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