MHC-8-64

Summary

Product Identification

This document provides a detailed overview for Wila A/S "MHC" series Membrane Housings, specifically type MHC-8-64. These are high-pressure housings designed for 64 bar operation, primarily intended for RO filtration in the food and beverage industry to reduce or eliminate microbials.

The Membrane Housing is a tubular pressure vessel with 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.

The product line is designed for 7.9" x 38" (8038) membranes and can accommodate 1 to 6 elements. Two connection arrangements are available: Model A and Model C.

Operating Limits

• Maximum pressure: 64 barg
• Maximum temperature: 85°C

Materials of Construction

The Membrane Housing is constructed from:

• EN 1.4404 stainless steel
• EN 1.4462 stainless steel

Surface Finish:

• Inside surface roughness: ≤ 0.8 µm
• Outside surface roughness: ≤ 1.6 µm

All fluid media used with the membrane housing must be compatible with both EN 1.4404 and EN 1.4462 Stainless steel.

Certifications and Regulations

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 for fluid group 2 (non-dangerous fluids).
• PED - Category I and EN 13445 for both 5 and 6 element housings.

Mechanical / Hydraulic

The housings feature Tri-clamp connections for Feed, Retentate, and Permeate. For the 64 bar pressure rating, SH or SSH clamps are recommended. The housing should be installed with the Retentate outlet at the highest point for better air venting.

Dimensions and Specifications (all dimensions in millimeters, volume in liters, weight in kg)

The following specifications apply to both Model A and Model C for the respective element counts. "ID" refers to the internal diameter of the Permeate tube, which is Ø28.9 mm for all models. "TL" = Total Length, "HL" = Housing Length, "CL" = Clamp-to-Clamp Length, "IL" = Internal Length.

Available Feed & Retentate Clamp Ferrule Connections (F&R):

• Ø76 (ISO 2852-2)
• Ø63.5 (ISO 2852-2)
• Ø51 (ISO 2852-2)
• DN65
• DN50 (DIN 32676-A)

Available Permeate End Clamp Ferrule Connections (P):

• Ø38 (ISO 2852-2)
• Ø25 (ISO 2852-2)
• DN40 (DIN 32676-A)
• DN25 (DIN 32676-A)

* The 'IL' (Internal Length) dimension varies slightly based on the selected Feed & Retentate connection size, ranging from 1007-1019mm for 1-element, 1984-1996mm for 2-element, 2969-2981mm for 3-element, 3949-3961mm for 4-element, 4934-4946mm for 5-element, and 5914-5926mm for 6-element models. See the official PDF for exact tabulated values for each configuration.

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

Official datasheet (PDF)

PDF datasheet