MH-4-40

Summary

Product identification

This overview details Membrane Housings of type 'MH-4-40', designed for medium pressure applications up to 40 bar. These are tubular pressure vessels with a single inlet (Feed), an unfiltered outlet (Retentate), and a filtered outlet (Permeate).

The nomenclature follows the pattern MH-4-40bar-X-element – Model _ or MH-4-40-X-YY-ZZ-_:

• MH: Membrane Housing with collaring connections for Feed and Retentate.
• 4: Designed for 3.8 x 38" (3838) membranes.
• 40bar: Designed for pressures up to 40 bar and temperatures up to 70°C.
• X: Indicates the number of elements that can be fitted (from 1 to 6).
• YY: Indicates Feed and Retentate collaring connections (51, 50, 40, 38).
• ZZ: Indicates Permeate end clamp ferrule connection (26, 25).
• _: Indicates Feed and Retentate connection arrangement (either A or C).

Applications

Membrane housings of this type are often used in the food and beverage industry for membrane filtration to reduce or eliminate microbials. They are suitable for liquid-containing products such as juice, beer, soy, whey, milk, milk powder, and chocolate. This product is designed for MF, UF, NF, and RO filtration processes.

Operating limits

• Maximum pressure: 40 barg
• Maximum temperature: 70°C

Mechanical / hydraulic

• Construction Material: EN 1.4404 (AISI 316L) stainless steel. All fluid media must be compatible with EN 1.4404 (AISI 316L) Stainless steel.
• Surface Finish:
  • Inside: ≤ 0.8 µm
  • Outside: ≤ 1.6 µm
• Design: Designed for fluid group 2 (non-dangerous fluids).
• Membrane Elements: Designed for 3.8" diameter, 38" long membranes.
• Permeate Internal Diameter: Ø21.1 mm (for 3.8" dia. elements).
• Installation Note: The Membrane Housing should be installed with the Retentate outlet at the highest point for better air venting.

Connections

• Feed and Retentate: Collaring connections. Available sizes:
  • Ø51
  • DN50
  • Ø38
  • DN40
  • Weld ends with a minimum 3 mm wall thickness are required.
• Permeate: Clamp ferrule connection. Available sizes:
  • Ø25 (in accordance with ISO 2852-2)
  • DN25 (in accordance with DIN 32676-A)
  • An SH clamp is recommended.

Dimensions, Volumes, and Weights

Dimensions (TL, HL, CL, IL), volumes, and dry weights vary significantly depending on the number of elements (1 to 6) and connection configurations (Model A or C, different F&R/Permeate connection sizes).

• 1-element models:
  • Volume: 9 liters
  • Dry weight: 10 kg
  • TL: 1270 mm
  • HL: 1195 mm
  • CL: 1075 mm
  • IL: Ranges from 1009 mm to 1016 mm depending on model.
• 2-element models:
  • Volume: 16.5 liters
  • Dry weight: 15 kg
  • TL: 2255 mm
  • HL: 2180 mm
  • CL: 2060 mm
  • IL: Ranges from 1994 mm to 2001 mm depending on model.
• 3-element models:
  • Volume: 24 liters
  • Dry weight: 20 kg
  • TL: 3235 mm
  • HL: 3160 mm
  • CL: 3040 mm
  • IL: Ranges from 2974 mm to 2981 mm depending on model.
• 4-element models:
  • Volume: 31 liters
  • Dry weight: 25 kg
  • TL: 4215 mm
  • HL: 4140 mm
  • CL: 4020 mm
  • IL: Ranges from 3954 mm to 3961 mm depending on model.
• 5-element models:
  • Volume: 38.5 liters
  • Dry weight: 29 kg
  • TL: 5195 mm
  • HL: 5120 mm
  • CL: 5000 mm
  • IL: Ranges from 4934 mm to 4941 mm depending on model.
• 6-element models:
  • Volume: 46 liters
  • Dry weight: 34 kg
  • TL: 6175 mm
  • HL: 6100 mm
  • CL: 5980 mm
  • IL: Ranges from 5914 mm to 5921 mm depending on model.

See the official PDF for exact tabulated values for all models and connection types. All dimensions are in millimeters.

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 provided includes:

1. Customer drawing with description and design data table
2. Declaration of conformity
3. User Manual

As a supplement, the following can be provided upon request: 4. 3.1 material certificates according to EN 10204 5. Weld-logs with associated welding certificates according to DS/EN ISO 9601-1.

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Disclaimer: This summary is based solely on the extracted text and may not include all figures, footnotes, or the latest revisions from the complete OEM PDF datasheet. For contractual purposes, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet