THEA 40

Summary

Product Identification

This document provides an overview for Tubular Heat Exchangers manufactured by Wila A/S under the category “THEA”. These heat exchangers are designed for medium pressure applications, specifically up to 40 barg. The housing is constructed from EN.1.4404 (AISI 316L) stainless steel with a sanitary surface finish.

The heat exchanger consists of two pressure chambers:

• Tube side (Product side): Comprises the interior of all tubes within the tube bundle.
• Shell side (Service side): Comprises the exterior of the tube bundle and the interior of the exchanger's outer shell.

The internal surface roughness is ≤ 0.8 µm, and the external surface roughness is ≤ 1.6 µm. All fluid media must be compatible with EN.1.4404 (AISI 316L) Stainless Steel.

Operating Limits

The heat exchangers are designed for fluid-to-fluid heat transfer (heating or cooling) and are rated for a maximum product side pressure of 40 barg (580 PSI).

Service Side Limits (Maximum Steam Pressure and Temperature)

• 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

For pressure and temperature limits with fluids other than steam, refer to the "Heat exchangers – pressure and temperature relations" document.

Group Specifications and Model Codes

The general model code structure is:

• THEA-xx-xxx-40: Where 'xx' denotes the heat transfer surface area in m² (.5, 01, 02, 03, 04, 06, 08) and 'xxx' indicates the shell diameter in mm (129 or 209). The '40' signifies a pressure rating up to 40 bar.
• THEA-xx-xxx-yyy-zz: Includes additional parameters for tube side ('yyy') and shell side ('zz') clamp ferrule connections.

Connections

Tube Side (P1 and P2) Connections:

• Ø129mm Shell:
  • DIN 32676-A: DN125, DN100, DN80, DN65
  • ISO 2852-2: 4” (Ø101.6), 3” (Ø76.1), 2.5” (Ø63.5)
• Ø209mm Shell:
  • DIN 32676-A: DN150, DN125, DN100
  • ISO 2852-2: 4” (Ø101.6)

Shell Side (S1 and S2) Connections (for both Ø129 and Ø209 shells):

• DIN 32676-A: DN50, DN40
• ISO 2852-2: 2” (Ø51), 1.5” (Ø38)

Other connection types and sizes are available upon request.

Material and Construction

• Material: EN.1.4404 (AISI 316L) Stainless Steel
• Construction: Concentric tubes within a housing.

Regulations and Directives

The heat exchanger 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 European Parliament directive No. 2014/68/EU (Pressure Equipment Directive) - designed for fluid group 2 (non-dangerous fluids).
• 3-A Sanitary Standards 00-01 / 12-08

Documentation

Standard documentation includes:

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

Optional 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

Detailed Specifications

Specific models and their dimensions are listed in tables throughout the document, organized by surface area and shell diameter.

Example: THEA-.5-129-40 Series

• Maximum Pressure/Temperature: 40 barg / 85°C (Product Side); 10 bar[g] / 185°C (Shell Side with steam)
• Volume: 3 liters (product), 1 liter (service)
• Dry Weight: 8 kg

Detailed tables for THEA-.5-129-40, THEA-01-129-40, THEA-02-129-40, THEA-03-129-40, THEA-01-209-40, THEA-02-209-40, THEA-03-209-40, THEA-04-209-40, THEA-06-209-40, and THEA-08-209-40 provide specific dimensions and connection options.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror