Aqualast 1812

Summary

Product identification

The FilmTec™ Aqualast™ 1812 Element is a residential reverse osmosis (RO) element, featuring a spiral-wound design with a polyamide thin-film composite membrane.

Key features include:

• Anti-scaling design for stable, reliable performance under high water recovery operation
• Long element life in high hardness waters
• High rejection at start-up and after stabilization
• Up to 20% higher flow versus competitive elements operated at the same pressure
• NSF International safety certification
• Dry shipping for convenient handling and long shelf-life

Operating limits

• Maximum Operating Temperature: 113°F (45°C)
  • Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
• Maximum Operating Pressure: 150 psig (10 bar)
• Maximum Feed Flow Rate: 2.0 gpm (7.6 lpm)
• pH Range, Continuous Operation: 2 – 11
• Maximum Feed Silt Density Index (SDI): SDI 5
• Free Chlorine Tolerance: < 0.1 ppm
  • DuPont Water Solutions recommends removing residual free chlorine by pretreatment prior to membrane exposure, as oxidation damage is not covered under warranty.

Product water

• Permeate Flow Rate (typical): 75 GPD (12 L/h)
• Typical Stabilized Salt Rejection: 98%
• Minimum Salt Rejection: 96.0%
• Test conditions: 250 ppm NaCl, 77°F (25°C), pH 8.0, 15% recovery and the specified applied pressure.
• Permeate flows for individual elements may vary ±20%.
• Discard permeate obtained from the first hour of operation.
• The use of this product does not necessarily guarantee the removal of cysts and pathogens from water.

Mechanical / hydraulic

• Element Dimensions (Nominal):
  • A: 11.74 in. (298 mm.)
  • B: 0.875 in. (22.2 mm)
  • C: 0.68 in. (17 mm)
  • D: 1.75 in. (44.5 mm)
  • E: 9.98 in. (253.5 mm)
• FilmTec™ Aqualast™ 1812 Residential Elements seal at a standard 2.0 inch – 2.05 inch I.D. within pressure vessels.
• Installation recommendations:
  • Keep elements moist at all times after initial wetting.
  • To ease installation, use a lubricant safe for indirect water contact on all seals (e.g., water, glycerin-based lubricants, MOLYKOTE® 111 Compound).
  • Rotate the element about a quarter turn to ease installation and removal, ensuring a good interface between the o-rings and brine seal with their connection surfaces.
• It is recommended that systems using these elements rinse the elements for 24 hours, prior to first use, to meet NSF/ANSI 58 Standard.
• For detailed visual information, see Figure 1: Impact of Pressure on Target Permeate Flow, and Figure 2: Impact of Temperature on Target Permeate Flow in the official PDF.

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Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. Contractual data for any project must match the specific OEM PDF revision used on that project.

Official datasheet (PDF)

PDF datasheet