The polyphosphate cartridge is a filter cartridge specifically designed to prevent scale formation (anti-scaling cartridge). It releases trace amounts of polyphosphate to encapsulate calcium and magnesium ions in the water, preventing them from crystallizing into scale. This protects equipment pipelines, water heaters, boilers, etc., from scale damage and provides anti-corrosion benefits, significantly extending the equipment's service life.
Polyphosphate cartridges are typically installed as a pre-filter of water purification systems, such as a pre-filter of RO water purifiers, the water inlet of water heaters, and the water inlets of washing machines or dishwashers.
The filler in the polyphosphate anti-scaling cartridge is polyphosphate crystals. Polyphosphate is a polymer compound formed by the condensation reaction of phosphoric acid molecules, usually appearing as transparent or translucent granules or crystals.
When water flows through the filter cartridge, the dissolved oxygen in the water comes into contact with the polyphosphate crystals, and some polyphosphate dissolves into the water in ionic form. The dissolved polyphosphate molecules achieve an anti-scaling effect by altering the crystal structure of calcium and magnesium ions in the water, without reducing the content of calcium and magnesium ions.
Polyphosphate forms a protective film on the surface of metal pipes or equipment, isolating oxides from contacting the metal and preventing corrosion reactions.
Although polyphosphate is food-safe, its chemical components, once dissolved in water, are not suitable for long-term consumption.
| Material | Polyphosphate Crystals |
| Housing Material | AS |
| Housing Color | Transparent |
| Height | 5" / 10" |
| QTY | 20 pcs |
| N.W / G.W | 19.5 / 20 kg |
| MEAS | 37 x 30 x 26.5 cm |
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