Last updated: 14/01/2026 12:38:47
RO SCALE CONTROL 25 LTR
Product Code
- Product group:
- 672
- Product number:
- 777716
RO Scale Control is a broad-spectrum scale inhibitor designed to maintain the performance and longevity of Reverse Osmosis (RO) systems and membranes by preventing scale and iron fouling.
Product information
This product supersedes product no: PC-191.11R, 777199
Why Choose RO Scale Control?
Choosing this product ensures reliable scale inhibition, proven to prevent a broad range of scale deposits and maintain optimal system performance. It offers cost efficiency with a low dosage requirement, reducing overall treatment costs. Its versatile application makes it compatible with various RO membranes, providing flexibility across different systems.
Additionally, it is certified to international drinking water standards (NSF/ANSI/CAN 60), guaranteeing quality and safety.
Features
Broad-Spectrum Effectiveness: Effective against a wide range of scale-forming compounds. Cost-Effective Dosage: Provides an economical solution with a low dose rate. Compatibility: Suitable for use with a wide range of RO membranes. Liquid Formulation: Easy to handle and apply, ensuring efficient treatment.
Benefits
Maintains RO Performance: Keeps your RO system running efficiently by preventing scale buildup and iron fouling. Prolongs Membrane Life: Reduces the need for premature membrane replacement, saving on costs and downtime. Improves Water Quality: Ensures high-quality permeate production by preventing scale and deposit buildup. Certified Safety: Certified by NSF in accordance with Standard 60, ensuring safe use in potable water systems.
Specification
General
| Invent Hazard Material (IMO/EU) classification | C-49 |
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Physical properties
| Colour | Pale yellow |
|---|---|
| Density [g/ml] | 1.36 - 1.40 |
| Form | Liquid |
| Materials compatibility | Polyamide membrane elements including TFC membranes, Stainless Steel 304, CPVC Piping, Polyethylene, Polypropylene, Plasite 4300, Plasite 7122 |
| Odour | Slight ammoniacal |
| pH | 10 -11 (1% Solution) |
Technical data
| Not Compatible | Brass, Viton, Polyurethane, Neoprene, Buna-N, EPDM, Hypalon, O-rings are acceptable for static applications. If fitting is opened, O-ring must be replaced. |
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Approvals
- NSF International Certifies that this product conforms to the requirements of NSF/ANSI Standard 60 - Drinking Water Treatment Chemicals - Health Effects. Maximum use level according to NSF approval: 15 mg/lit.
- Approved by The Norwegian Food Safety Authority
Safety Data Sheet (SDS)
Documents
Directions for use
NALFLEET™ RO Scale Control shows excellent performance against the following scale forming compounds: - calcium carbonate- calcium sulphate - barium sulphate - strontium sulphate - calcium fluoride - silica and iron.
NALFLEET™ RO Scale Control is used when the silica level in the brine is less than 185 mg/l at a brine pH of 7.5 and temperature 25 °C (77 °F). NALFLEET™ RO Scale Control conforms to the requirements of NSF/ANSI Standard 60 - Drinking Water Treatment Chemicals -Health Effects.
Dosing and Control
Typical dose rate is 5 to 15 mls/m3 flow rate. NALFLEET™ RO Scale Control should be fed continuously to minimize precipitation of scale and fouling of RO and nano-filtration membranes. It is recommended to operate the dosing pump with the highest possible frequency and to adjust the dosage by adjusting the pump stroke to ensure membrane protection. The feed point location should be as close to the RO membrane as practical but one that ensures good mixing with the feedwater prior to entering the RO system. Typically, this is before the cartridge filters. It is preferred to feed NALFLEET™ RO Scale Control neat via a closed feed system to prevent contamination from foreign material (a closed feed system being defined as a system in which fluid is moved from a closed storage vessel into a treated media without exposure to the atmosphere, except through normal venting or pressure relief devices).
NALFLEET™ RO Scale Control can be diluted using RO permeate (only) following these guidelines:
- Use RO permeate for dilution.
- Prepare a fresh antiscalant solution every 3-5 days.
- Inspect the antiscalant day tank before adding the new solution. If needed, the antiscalant tank should be cleaned prior to filling.
- Dilution rates up to a factor 10 are typically applied. Dilution factors higher than 10 will require more attention with respect to the condition of the antiscalant tank (cleaning) and preparation of a new solution (every 1-3 days).
- NaOH can be added to the dilution to increase the pH to 10-11. This is especially recommended for warm environments to prevent bio-growth. NALFLEET™ RO Scale Control dosage is dependent on feedwater chemistry, membrane type, and system operating parameters (e.g. recovery, temperature and pressure).
