Datasheet summary
Belgard EVN
Engineering summary from PDF text extraction for Belgard EVN. Verify every value with the OEM datasheet.
Summary
Product identification
Belgard® EVN is a liquid product for the control of alkaline scaling (calcium carbonate and magnesium hydroxide) in all types of seawater distillation plants. It is a neutralised aqueous solution of a synthetic polymer based on hydrolysed maleic anhydride.
Application
Belgard EVN can be used in all types of distillation plant, particularly suitable for multi-stage flash plants. It is a neutralised aqueous solution of an organic acid. There are no special requirements regarding materials of construction of dosing equipment.
Recommended injection points are either into the seawater make-up line after any external de-aeration and decarbonation equipment, or into the recycle brine stream at a suitable point after the blowdown and typically into the discharge of the recycle brine pump.
Usage
Please consult with your BWA Water Additives representative to determine optimal dosage recommendations for your system.
Packaging / Weight
- Drum: 550 lb (250 kg)
Consult your sales representative for availability.
Physical Properties
- Appearance: Pale amber liquid
- Odor: Slight
- Solids content: 40-45% w/w
- Specific gravity: 1.26 to 1.30 at 20/20 oC
- pH: 8.0 - 9.0
- Boiling range (760 mm Hg): 100 - 102°C (213-217°F)
- Freezing point: 0 to -10°C
- Solubility in Water: Miscible
Disclaimer
This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.