HSRO-4040-FF

Summary

Product identification

The FilmTec™ HSRO heat sanitizable reverse osmosis membrane elements are designed to deliver outstanding quality water while withstanding sanitization with hot water, thus eliminating the need for chemical sanitizers. Their full-fit configuration minimizes stagnant areas, making them optimal for applications requiring a sanitary design. All components comply with FDA standards. The membrane type is Polyamide Thin-Film Composite.

• Product: HSRO-4040-FF
• Part Number: 98592

Typical Properties (per element)

• Active Area: 90 ft² (8.4 m²)
• Applied Pressure: 150 psig (10.3 bar)
• Permeate Flow Rate: 1,900 gpd (7.2 m³/d)
• Stabilized Salt Rejection: 99.5%

Note: Permeate flow and salt rejection are based on test conditions of 2,000 ppm NaCl, the specified pressure, 77°F (25°C), and 15% recovery. Elements must be conditioned prior to start-up, and listed values apply after performance stabilization. Individual element permeate flows may vary ±20%.

Mechanical / Hydraulic

Element Dimensions – inches (mm)

• A: 40.0 (1,016)
• B: 0.75 OD (19.0)
• C: 3.9 (99)

The HSRO-4040-FF fits nominal 4 inch I.D. pressure vessels.

Operating Limits

• Membrane Type: Polyamide Thin-Film Composite
• Maximum Operating Temperature: 113ºF (45ºC)
  • Maximum temperature for continuous operation above pH 10 is 95ºF (35ºC).
• Maximum Sanitization Temperature (@ 25 psig): 185ºF (85ºC)
• Maximum Operating Pressure: 600 psig (41 bar)
• Maximum Element Pressure Drop: 15 psig (1.0 bar)
• Maximum Pressure Drop Across Entire Pressure Vessel (Housing): 60 psi (4.1 bar)
• pH Range:
  • Continuous Operation: 2 – 11
  • Short-Term Cleaning: 1 – 12
• Maximum Feed Silt Density Index (SDI): 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, and residual free chlorine should be removed by pretreatment prior to membrane exposure.

Important Operating Information

New HSRO heat sanitizable spiral elements must be pre-conditioned prior to initial use by exposure to hot water. Suitable quality water, which is chlorine-free and non-scaling/fouling, must be used during all pre-conditioning steps. RO permeate is preferred, but pre-filtered feed water may be used.

An appropriate conditioning procedure consists of the following:

• Flush to drain with suitable quality water at low pressure and low permeate flow rate.
• Recycle warm water (45°C or less) at very low pressure (< 25 psig trans-membrane pressure with a maximum feed pressure of 45 psig (3 bar)).
• Introduce hot water to the system to increase temperature to 80°C (176°F).
• Keep trans-membrane pressure below 25 psig (1.7 bar) when warm or hot water (45°C or higher) is being fed to the membranes.
• Maintain temperature for 60-90 minutes.
• Allow system to cool to 45°C or below.
• Flush to drain with suitable water quality at very low pressure (< 25 psig trans-membrane pressure with maximum feed pressure of 45 psig (3 bar)) to ensure that the element components have cooled to below 45°C.
• Do NOT recycle permeate during pre-conditioning.
• Do NOT start-up a second pass RO before the first pass RO has been pre-conditioned.

Operation Guidelines

• Avoid any abrupt pressure or cross-flow variations on the spiral elements during start-up, shutdown, cleaning, or other sequences to prevent possible membrane damage.
• During start-up, a gradual change from a standstill 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.
• 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 control biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution.
• Avoid static permeate-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 present in the official PDF datasheet. Contractual data for any project must always match the specific OEM PDF revision used for that project.

Official datasheet (PDF)

PDF datasheet