SelRO 8040 MPS-34-NYHN

Summary

Product Identification

• Product Series: SelRO™ MPS-34 pH STABLE ELEMENTS
• Membrane Type: Nanofiltration Spiral Element Series - 8040
• Membrane Chemistry: Proprietary composite nanofiltration membrane, pH stable, with superior pH and temperature stability.
• Molecular Weight Cut-Off (MWCO): 200 Daltons
• Construction: Spiral wound element with hard overwrap and polysulfone permeate tube
• Major Applications: Acid and caustic recovery, product concentration
• Options: Feed channel spacers of 31 mil (N) and 57 mil (Z)

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)
  • Refer to the Operating Envelope of the SelRO Elements when temperature is higher than 122°F (50°C).
• Allowable pH - Continuous Operation: 0-14
• Allowable pH - Clean-In-Place (CIP): 0-14
• Maximum Pressure Drop Per Element: 10 psi (0.7 bar)
• Maximum Pressure Drop Per Vessel: 50 psi (3.5 bar)
• Maximum Allowed Permeate Pressure: 3 psi (0.2 bar)
• Feed Flow Rate:
  • Minimum: 25 gpm (95 liter/min)
  • Maximum: 75 gpm (285 liter/min)
• Consult Process Technology group for specific applications.
• For guidelines of recommended temperature and pressure, refer to the "Operating Envelope for SelRO Elements" diagram in the official PDF to prevent irreversible compaction and performance deterioration.

Feed Water

• Turbidity: For best performance, maximum feed turbidity is 1 NTU.
• Chlorine and Chemical Exposure:
  • It is not recommended to expose the MPS-34 membrane to chlorine or other oxidants, as it may affect membrane performance.
  • Sodium metabisulfite (without catalysts such as cobalt) is the preferred chemical to eliminate free chlorine or other oxidizers in the feed.
  • It is not recommended to expose the MPS-34 membrane to organic solvents, such as alcohol or acetone.

Mechanical / Hydraulic

General Guidelines

• Typical Process Streams (Examples): 5% HCl, 37% HCL, 15% H₂SO₄, 15% Acetic acid, 5% HNO₃, 20% H₃PO₄, 3% NaOH, 20% NaOH, 10% KOH.
• Recommended Cleaning Materials (at 122°F / 50°C):
  • 0.1-5% w/w sodium hydroxide
  • 0.2-1% w/w nitric or phosphoric acid
  • 0.1-0.5% w/w detergent mix KOCHKLEEN™ KLD-III
  • 0.5% anionic surfactant (such as SDS)
  • Consult KMS regarding the use of other cleaning materials.
• Lubricants for Installation: Use only water or glycerin to lubricate seals. Petroleum or vegetable-based oils or solvents may damage the element and will void any warranty.
• Storage Solution:
  • 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 of SelRO membranes.
  • The membrane element should not get dry. Store in a sealed bag, at a temperature ranging from 36°F - 86°F (2°C - 30°C).

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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 must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet