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AERRE INOX Srl
DTS heat exchanger (HEX-16)

DTS heat exchanger (HEX-16)

Product catalog summary

Documentation and Certification
The DTS heat exchangers are manufactured in compliance with PED Directives and are FDA and cGMP approved. Validation includes heat calculations, certificates for ASTM 3.1B materials, construction plans, and surface finish readings. The thermal insulation cover is completely welded, and the external tube sheet with tube bundle is expanded and seal welded according to the ASME-BPE Directive.

Operating Principles
The main flow, which can be WFI distilled water, DW demineralized water, or PS pure steam, is directed through one or more tube shafts. The secondary fluid, such as CW cooling water or a heating medium, is channeled countercurrent inside the shell. The double tube sheet design prevents mixing of the two fluids, ensuring that any leakage from the tube will escape to the atmosphere.

Description
Aerre Inox has been designing and manufacturing stainless steel tube shaft sterile heat exchangers with double tube sheets since 1990, adhering to USP 23 and FDA norms. These exchangers are custom-made to meet client specifications, ensuring optimal design and functionality. They can operate in inclined, sloped, or vertical positions and are self-draining, suitable for heating, cooling, or both. Standard features include insulation, support brackets, and o-rings.

The Tube Shaft
Constructed from seamless AISI 316L tubes with an internal finish of Ra<0.6μm, the tubes are pickled and passivated post-manufacture. They are secured using mechanical expansion on the tube sheets with a triangular pitch. The number of passes can vary from 1 to 8, depending on speed and load loss, with IN/OUT connection clamps for primary fluids located on the chambers.

The Shell
Also made from AISI 316L, the shell is designed based on diameter and working pressure. It can include an axial expansion compensator to handle linear expansions. Insulation supports, typically fiberglass, are bonded to the shell, which is protected by a riveted AISI 304 sheet. The shell also includes support brackets and flanged IN/OUT connectors for secondary fluids.

LSC Unit Range
The LSC unit range is designed for quick and easy sampling of clean steam and Water For Injection (WFI) while maintaining a sterile testing environment. It can operate with mains water as the cooling medium, and an aseptic sample valve allows precise control of sample flow. The capacity depends on system pressure, temperature, and the cooling water supply's temperature and flow rate.

Catalog excerpts

DTS heat exchangers Since 1990 Aerre Inox has been designing and making, in line with USP 23 and FDA norms, a full range of stainless steel tube shaft sterile heat exchangers with double tube sheet (DTS) for use in the chemical and pharmaceutical industries. DESCRIPTION As this product is made-to-order we aim to satisfy our clients’ needs more effectively by ensuring each exchanger is designed for eachproject based on data supplied by the client. This ensures our technical office works under optimum conditions to make the size and temperature calculations to input into our exclusive and purpose-designed...

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Acrtii IrlOi > WHO illlCajCAi II-1 jnfaB. Lj] cgruiQt*} This LSC unit ranges have been designed to allow clean steam and Water For Injection (WFI) samples to be taken quickly and easly whilst providing a sterile environment for testing and can be operated with mains water as the cooling medium. Availability of aseptic sample valve allow fine control of sample flow during testing. The capacity of the LSC range is dependent on the system pressure and temperature, together with the temperature and flow rate of the cooling water supply.

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SECONDARY INLET SECONDARY OUTLET OPERATING PRINCIPLES The main flow (WFI distilled water, DW demineralised water, PS pure steam) is sent along one or more of the tube shafts, while the secondary fluid (CW cooling water, or heating medium ) is channelled countercurrent inside the shell. The double tube sheet operation prevents any mixing of the two processing fluids, since should the tube contract, the fluid inside of the shell will leak to atmosphere.

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Thermal insulation cover completely welded External tube sheet with tube bundle expanded and seal weld according to Asme-BPE Directive DOCUMENTATION AND CERFITICATION Made in conformity with PED Directives. FDA and cGMP approved. Validation is included in the form of heat calculations, certificates for the ASTM 3.1B materials used, construction plans and surface finish readings, etc.

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AERRE INOX s.r.l. Via Gerola, 4 I-26010 Fiesco (Cremona) Tel. +39 0374 370 828 Fax +39 0374 370 833 www.aerreinox.it Get the information you need and more at [email protected]

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DTS heat exchanger (HEX-16)

DTS heat exchanger (HEX-16)

Catalog excerpts

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