SelRO MPS-34-8040-B2X

Summary

Product Description

• Membrane Chemistry: Proprietary composite nanofiltration membrane
• Membrane Type: pH stable nanofiltration membrane
• Molecular Weight Cut-Off (MWCO): 200 Dalton
• Construction: Spiral wound element
• Major Applications: Acid and caustic recovery, product concentration
• Options:
  • Feed channel spacers: 30 mil (X) and 57 mil (Z)
  • Permeate tube: B2 (stainless steel) or C2 (Polysulfone)

Specifications

Test Conditions: RO water at 440 psi (30 bar), 86°F (30°C). Feed solution for rejection tests is 3% glucose / 3% sucrose or 5% NaCl.

Operating Limits

• Typical Operating Pressure: 220-510 psi (15-35 bar)
• Maximum Operating Pressure: 510 psi (35 bar)
• Maximum Temperature: 158°F (70°C). For temperatures higher than 122°F (50°C), refer to the Operating Envelope of Code 30 Membranes.
• Allowable pH - Continuous Operation: 0-14. Corrosive acids should be avoided when a stainless steel permeate tube is used.
• Allowable pH - Clean-In-Place (CIP): 0-14. Corrosive acids should be avoided when a stainless steel permeate tube is used.
• Maximum Pressure Drop Per Element: 10 psi (0.7 bar)
• Maximum Pressure Drop Per Vessel (5 in Series): 50 psi (3.5 bar)
• Maximum Allowed Permeate Pressure: 3 psi (0.2 bar)
• Maximum Feed Turbidity: 1 NTU
• Chlorine and Chemical Exposure:
  • Not recommended to expose the MPS-34 membrane to chlorine or other oxidants, as it may affect performance.
  • Sodium metabisulfite (without catalysts such as cobalt) is the preferred chemical to eliminate free chlorine or other oxidizers in the feed.
  • Not recommended to expose the MPS-34 membrane to organic solvents, such as alcohol, acetone, etc.
• Feed Flow Rate:
  • Minimum: 25 gpm (95 liter/min)
  • Maximum: 75 gpm (285 liter/min)
• Operating Envelope For Code 30 Membranes: A pressure-temperature relationship guideline exists to prevent irreversible compaction and performance deterioration. This diagram should be used as a guideline for operating the MPS-34 spiral module. Example points given: 510 psi, 122°F (35 bar, 50°C); 360 psi, 140°F (25 bar, 60°C); 220 psi, 158°F (15 bar, 70°C).

Mechanical / Hydraulic

Nominal Dimensions

Membrane Handling

• Recommended Cleaning Materials:
  • 0.1-5% w/w sodium hydroxide (NaOH) at 122°F (50°C)
  • 0.2-1% w/w nitric (HNO₃) or phosphoric (H₃PO₄) acid at 122°F (50°C)
  • 0.1-0.5% w/w detergent mix KOCHKLEEN® KLD-III
  • 0.5% anionic surfactant (such as SDS) at 122°F (50°C)
• Lubricants: For element installation, use only water or glycerin to lubricate seals. Petroleum or vegetable-based oils or solvents may damage the element and void warranty.
• Storage Solution: The membrane module should not get dry and should be stored in a sealed bag at 36°F - 86°F (2°C - 30°C).
  • Short Term (up to two weeks): 0.25% w/w sodium metabisulfite.
  • Long Term: 0.7% w/w benzalkonium chloride.
  • Glycerin should not be used for storage.

Typical Process Streams

• 5% HCl
• 37% HCl
• 15% H₂SO₄
• 15% Acetic acid
• 5% HNO₃
• 20% H₃PO₄
• 3% NaOH
• 20% NaOH
• 10% KOH

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Disclaimer: This summary is based on the provided text extraction. It may not include all figures, footnotes, or the most recent revisions of the OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet