Datasheet summary
MH-8-40
Engineering summary from PDF text extraction for MH-8-40. Verify every value with the OEM datasheet.
Summary
Product identification
The Wila Membrane Housing type 'MH-8-40' is a medium-pressure housing designed for 40 bar applications in the food and beverage industry. It is suitable for NF and RO filtration systems, particularly for reducing or eliminating microbials in liquid-containing products such as juice, beer, soy, whey, milk, milk powder, and chocolate.
- Material: EN 1.4404 (AISI 316L) stainless steel. All fluid media must be compatible with this material.
- Internal Surface Roughness: ≤ 0.8 µm
- External Surface Roughness: ≤ 1.6 µm
- Membrane Compatibility: Designed for 7.9” x 38” (8038) membranes.
- Description: A tubular pressure vessel with a single Feed inlet (shell side), a Retentate unfiltered outlet (shell side), and a Permeate filtered outlet (end center).
Operating limits
- Maximum Pressure: 40 barg
- Maximum Temperature: 70°C
Mechanical / hydraulic
The membrane housings are available for 1 to 6 elements, with various connection configurations (Model A and Model C).
- Permeate Internal Diameter (ID): Ø28.9 mm
- Connections:
- Feed and Retentate: Collaring connections. Available sizes: Ø63.5, Ø51, DN50. Requires weld ends with a minimum 6 mm wall thickness.
- Permeate: End clamp ferrule connections. Available sizes: Ø38, Ø25 (in accordance with ISO 2852-2); DN40, DN25 (in accordance with DIN 32676-A). An SH clamp is recommended.
- Installation Note: The Membrane Housing should be installed with the Retentate outlet at the highest point for better air venting.
General Dimensions (All dimensions in millimeters)
| Number of Elements | Volume (liters) | Dry Weight (kg) | Total Length (TL) | Head Length (HL) | Clamp Length (CL) | Inlet Length (IL) (approx. range) |
|---|---|---|---|---|---|---|
| 1 | 40 | 42 | 1310 | 1280 | 1080 | 1007 - 1013 |
| 2 | 71 | 58 | 2290 | 2260 | 2060 | 1987 - 1993 |
| 3 | 103 | 74 | 3275 | 3245 | 3045 | 2972 - 2978 |
| 4 | 135 | 90 | 4255 | 4225 | 4025 | 3952 - 3958 |
| 5 | 167 | 106 | 5240 | 5210 | 5010 | 4937 - 4943 |
| 6 | 199 | 122 | 6220 | 6190 | 5990 | 5917 - 5923 |
Note: Specific connection sizes for Feed & Retentate and Permeate can slightly influence the Inlet Length (IL). See the official PDF for exact tabulated values and detailed diagrams for Model A and Model C configurations.
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) - designed only for fluid group 2 (non-dangerous fluids).
Disclaimer
This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the OEM PDF datasheet. For contractual data and complete specifications, the official PDF revision used on the project must be consulted.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.