MHC-4-40

Summary

Product identification

This overview is for Wila A/S Membrane Housings, type ‘MHC-4-40’, a tubular pressure vessel designed for membrane filtration. They are primarily used in the food and beverage industry to reduce or eliminate microbials.

• Product Line: MHC
• Application: MF, UF, NF, and RO filtration
• Material: EN 1.4404 (AISI 316L) stainless steel
• Surface Roughness:
  • Inside: ≤ 0.8 µm
  • Outside: ≤ 1.6 µm
• Membrane Compatibility: Designed for 3.8” x 38” (3838) membranes.
• Element Capacity: Available for 1 to 6 membrane elements.
• Connection Arrangements: "Model A" and "Model C" are detailed, with other connection arrangements also available.
• Included Components: The housing includes a single inlet (Feed) on the shell side, an unfiltered outlet (Retentate) on the shell side, and a filtered outlet (Permeate) from one of the end centers. Membranes and ATDs (Anti-Telescoping Devices) are not part of the housing but Wila's hygienic stainless steel ATDs can be supplied.

Operating limits

• Maximum Pressure: 40 barg
• Maximum Temperature: 70°C
• Fluid Group: Designed for fluid group 2 (non-dangerous fluids).

Regulations and Directives

The membrane housing is designed and manufactured in accordance with:

• European Commission regulation No. 2023/2006 (Good Manufacturing Practices)
• European Parliament directive No. EN 1935/2004 (Food Contact Materials)
• European Parliament directive No. EN 1907/2006 (Chemical Restrictions (REACH))
• PED - Article 4.3 (SEP) in the European Parliament directive No. 2014/68/EU (Pressure Equipment Directive)

Documentation

Standard documentation includes:

• Customer drawing with description and design data table
• Declaration of conformity
• User Manual

Supplemental documentation available upon request:

• 3.1 material certificates according to EN 10204
• Weld-logs with associated welding certificates according to DS/EN ISO 9601-1

Mechanical / hydraulic

• Connections: Tri-clamp connections for Feed, Retentate, and Permeate.
• Recommended Clamps: SH or SSH clamps are recommended for 40 bar pressure rating.
• Feed and Retentate Connection Options:
  • Ø51, Ø38 (in accordance with ISO 2852-2)
  • DN50, DN40 (in accordance with DIN 32676-A)
• Permeate Connection Options:
  • Ø25 (in accordance with ISO 2852-2)
  • DN25 (in accordance with DIN 32676-A)
• Installation Note: The Membrane Housing should be installed with the Retentate outlet at the highest point for better air venting.

Model Specifications (MHC-4-40bar)

All models are designed for 3.8" diameter elements, with a permeate internal diameter (ID) of Ø21.1 and common overall dimensions (TL, HL, CL) that vary based on the number of elements. Individual connection sizes for Feed/Retentate and Permeate also influence specific length (IL) dimensions.

• 1-element:
  • Permeate Volume: 9 liters
  • Dry Weight: 10 kg
• 2-element:
  • Permeate Volume: 16.5 liters
  • Dry Weight: 15 kg
• 3-element:
  • Permeate Volume: 24 liters
  • Dry Weight: 20 kg
• 4-element:
  • Permeate Volume: 31 liters
  • Dry Weight: 25 kg
• 5-element:
  • Permeate Volume: 38.5 liters
  • Dry Weight: 29 kg
• 6-element:
  • Permeate Volume: 46 liters
  • Dry Weight: 34 kg

See the official PDF for exact tabulated dimensions (TL, HL, CL, IL) and stock/drawing numbers for all available configurations (Model A and Model C with various connection sizes).

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Disclaimer: This summary is based on the provided text extract. The original PDF may contain additional figures, footnotes, or revisions not present in this extract. For contractual data and the most up-to-date specifications, always refer to the official OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet