TW30-2026

Summary

Product identification

FilmTec™ Reverse Osmosis (RO) Elements are designed for small commercial systems purifying less than one gallon per minute (0.2 m³/d) of RO water. These elements are available in various sizes to meet space requirements and are described as providing high-quality water, energy savings through low operating pressure (for XLE models), and long-lasting, reliable performance. The membrane type is Polyamide Thin-Film Composite.

This document specifically details the FilmTec™ TW30-2026 element.

Product water

The TW30-2026 element has the following typical properties based on test conditions:

• Part Number: 80635
• Applied Pressure: 225 psig (15.5 bar)
• Permeate Flow Rate: 220 gpd (0.83 m³/d)
• Stabilized Salt Rejection: 99.5%

Test Conditions: TW30 elements are tested on a 2,000 ppm NaCl feed stream at the specified pressure, 77°F (25°C), and a 10% recovery rate. Permeate flows for individual elements may vary +/-20%.

General Notes on Product Water:

• The use of this product does not necessarily guarantee the removal of cysts and pathogens; effective reduction depends on the complete system design, operation, and maintenance.
• Permeate obtained from the first hour of operation should be discarded.

Operating limits

• Membrane Type: Polyamide Thin-Film Composite
• Maximum Operating Temperature: 113°F (45°C)
• Maximum Operating Pressure: 600 psig (41 bar)
• Maximum Pressure Drop: 13 psig (0.9 bar)
• pH Range:
  • Continuous Operation: 2 - 11 (Maximum temperature for continuous operation above pH 10 is 95°F (35°C))
  • Short-Term Cleaning (30 min.): 1 - 13
• Maximum Feed Silt Density Index (SDI): 5
• Free Chlorine Tolerance: <0.1 ppm (Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure; oxidation damage is not covered under warranty. Pretreatment is recommended.)

Mechanical / hydraulic

The TW30-2026 element has the following dimensions and characteristics:

• Maximum Feed Flow Rate: 5 gpm (1.1 m³/h)
• Element Dimensions (in/mm):
  • A: 26.0 (660)
  • B: 1.18 (30)
  • C: 0.68 (17)
  • D: 1.8 (46)
• TW30-2026 has double o-rings on each end of the permeate tube.
• TW30-2026 Elements fit nominal 2.0 inch pressure vessels.
• Maximum pressure drop across an entire pressure vessel (housing) is 30 psi (2.1 bar).

General Information and Operation Guidelines

• Proper start-up of RO systems is essential to prepare membranes and prevent damage from overfeeding or hydraulic shock.
• During start-up, a gradual change to operating state is recommended:
  • Feed pressure should be increased gradually over a 30-60 second time frame.
  • Cross-flow velocity at set operating point should be achieved gradually over 15-20 seconds.
• Avoid abrupt pressure or cross-flow variations during start-up, shutdown, cleaning, or other sequences.
• Keep elements moist at all times after initial wetting.
• If operating limits and guidelines are not strictly followed, the limited warranty will be null and void.
• To prevent biological growth during prolonged system shutdowns, immerse membrane elements in a preservative solution.
• The customer is responsible for the effects of incompatible chemicals and lubricants on elements.
• Avoid static permeate-side backpressure at all times.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data for specific projects must match the OEM PDF revision used on that project.

Official datasheet (PDF)

PDF datasheet