Product description
Scale inhibitor cartridge for limescale prevention and corrosion control
The Scale Inhibitor Crystal Cartridge is designed to reduce the risk of limescale formation in water systems by preventing hardness minerals from precipitating and forming deposits. Instead of removing hardness ions, the cartridge uses controlled dissolution of inhibitor crystals to condition the water and protect downstream equipment.
These cartridges are commonly used in potable water systems, technical water installations and equipment protection applications where scale build up and corrosion are a concern.
Filtration principle
The scale inhibitor cartridge operates using slowly dissolving polyphosphate based crystal media. As water flows through the cartridge, a controlled amount of inhibitor dissolves into the water stream.
This process:
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sequesters calcium and magnesium hardness ions
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prevents scale forming minerals from crystallising
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forms a protective film on pipe and equipment surfaces
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reduces limescale accumulation without softening
The cartridge does not remove hardness but conditions it to remain in solution.
Filter media
The cartridge contains hexametaphosphate crystal media designed for gradual dissolution.
Key characteristics of the media include:
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controlled release of scale inhibiting compounds
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effectiveness against calcium carbonate scale
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compatibility with potable and technical water
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suitability for continuous operation
The crystal media provides long service life when operated within recommended flow rates.
Performance characteristics
Typical performance characteristics include:
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effective reduction of limescale formation
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protection of pipework, valves and equipment
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stable dosing without chemical pumps
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consistent conditioning throughout cartridge life
Actual performance depends on water hardness, temperature and flow rate.
Operating conditions
Typical operating parameters include:
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suitable for cold water applications
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compatible with potable and technical water systems
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designed for continuous operation at controlled flow rates
Exact operating limits depend on cartridge configuration and installation conditions.
Cartridge configurations
Scale inhibitor crystal cartridges are available in multiple configurations to suit different system designs, including:
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insert type elements for use inside double open ended cartridges
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standalone cartridges for standard and slimline housings
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flow paths designed to ensure uniform crystal dissolution
The appropriate configuration is selected based on housing type and system layout.
Typical applications
Scale inhibitor crystal cartridges are commonly used in:
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domestic and commercial water systems
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protection of boilers and heat exchangers
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pre treatment for water heaters
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drinking water systems
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industrial and technical water installations
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pipework and equipment protection
They are ideal where scale prevention is required without full water softening.
Key benefits
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Reduces limescale formation
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Protects pipework and equipment
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No salt or regeneration required
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No wastewater discharge
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Simple installation and replacement
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Suitable for potable water use
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Alternative to ion exchange softening
Installation considerations
For optimal performance, scale inhibitor cartridges should be installed:
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upstream of equipment sensitive to scale formation
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after sediment filtration where present
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in housings compatible with the cartridge configuration
Flow rate control is important to ensure correct inhibitor dosing.
Configuration and quotation
Scale inhibitor crystal cartridges are supplied based on system design and housing type. Selection depends on:
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water hardness level
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system flow rate
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housing configuration
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application requirements
Filtra International provides technical support to ensure correct cartridge selection and system integration.