THEX

Summary

Product Identification

• Product Name: TUBULAR HEAT EXCHANGER
• Type: THEX
• Manufacturer: Wila A/S (extracted from context)
• Material: EN.1.4404 (AISI 316L) stainless steel
• Design Pressure: Up to 40 bar[g]

General Description

The THEX is a tubular heat exchanger designed for fluid-to-fluid heat transfer (heating or cooling). It consists of two pressure chambers: the "Tube side" (or "Product side") which includes the tubes, and the "Shell side" (or "Service side") which is the outer housing around the tube bundle. The product side is suitable for foodstuff fluids and has a sanitary surface finish.

Operating Limits

Product Side (Tube Side)

• Maximum Pressure: 40 barg
• Maximum Temperature: 85°C

Service Side (Shell Side)

• Maximum Pressure and Temperature (Steam):
  • 0.5 m² and 1 m²: 10 bar[g] / 185°C
  • 2 m²: 8 bar[g] / 176°C
  • 3 m²: 6 bar[g] / 165°C
  • 4 m² and 6 m²: 3 bar[g] / 144°C
  • 8 m²: 2.3 bar[g] / 136°C
• Note: For fluids other than steam, consult the "Heat exchangers – pressure and temperature relations" document.

Feed Water / Product Specifications

• Material Compatibility: All fluid media must be compatible with EN.1.4404 (AISI 316L) Stainless Steel.

Product Water / Treated Fluid Specifications

• Surface Finish:
  • Outside surface roughness: ≤ 1,6µm
  • Internal tube side roughness: ≤ 0,8µm

Electrical

• No electrical specifications were found in the extract.

Mechanical / Hydraulic

• Shell Diameters: Ø129 mm and Ø209 mm
• Tube Bank: Consists of 61 pc Ø12x1mm tubes for Ø129 mm shell sizes and 163 pc Ø12x1mm tubes for Ø209 mm shell sizes.
• Connections:
  • Tube Side (P1 and P2):
    • Ø129mm Shell: DN100, DN80 (DIN 32676-A); 4” (Ø101.6), 3” (Ø76.1) (ISO 2852-2)
    • Ø209mm Shell: DN150, DN125, DN100 (DIN 32676-A); 4” (Ø101.6) (ISO 2852-2)
  • Shell Side (S1 and S2):
    • Both Ø129mm and Ø209mm Shells: DN50, DN40 (DIN 32676-A); 2” (Ø51), 1.5” (Ø38) (ISO 2852-2)
  • Other connection types and sizes are available upon request.
• Dimensions: Various dimensions (A, B, C, D) are listed per model in tables. See the official PDF for exact tabulated values.
• Dry Weight: Varies by model, e.g., 9 kg for THEX-.5-129-40, 103 kg for THEX-08-209-40. See the official PDF for exact tabulated values.

Regulations and Directives

• 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).

Documentation

The following documentation is provided with the heat exchanger:

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

Optional supplementary documentation includes:

5. 3.1 material certificates according to EN 10204
6. Weld-logs with associated welding certificates according to DS/EN ISO 9601-1

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Disclaimer: This summary is based on extracted text and may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror