REART’s ATEX-Ex electric heat exchangers are designed to ensure the safe heating of liquids and gases in potentially explosive atmospheres (Zones 1 and 2).
Thanks to its expertise and product certification in compliance with the Atex Directive, obtained from Cesi Milan, Reart manufactures heat exchangers specifically for Ex-classified areas.
These ATEX heat exchangers offer efficient and reliable solutions for high-risk industrial environments such as the chemical, petrochemical, and oil & gas sectors.
The exchangers are built with ATEX-certified heating elements, ensuring safe operation and excellent resistance to corrosion. Each ATEX heat exchanger is designed to be safely mounted via flanges and can be customized to meet the client’s specific requirements, ensuring seamless integration into existing systems.
Thanks to the technical expertise of our engineering team, Ex electric exchangers can be designed for the following fluids:
With years of industry experience across various sectors, REART provides clients with the most suitable technical solutions for their specific applications.
Electric heat exchangers with Atex-Ex certification are used in the following industries:
Ex electric heat exchangers are sized by our technical department using thermodynamic simulation software, which allows us to accurately determine the operating conditions based on client specifications. This ensures the creation of controlled temperature flows tailored to specific application needs.
By leveraging this design software, we can define key parameters, including:
The electrical power installed on the electric heat exchangers can reach up to 1750 kW per exchanger, according to specific client specifications, REART engineering design, and applicable ATEX standards
The electric heat exchanger consists of a heating bundle with several resistive elements interconnected and TIG welded onto a mounting flange, which is then inserted into a tube (exchanger shell). The shell is designed and sized according to the project specifications (temperature and pressure) and complies with applicable regulations based on the destination country and industry standards, including: VSR, PED, ASME, U-STAMP, TEMA, ADMERKBLATTER, STOOMWEZEN.
The tank and the heater are sized (materials and dimensions) by the technical department based on the operating conditions specified by the client and the project requirements, using thermodynamic and mechanical calculation software.
For this type of Ex heat exchanger, the electrical sizing is carried out in accordance with certified ATEX requirements for the approval of the exchanger’s electrical enclosures, considering the following parameters:
Electric heat exchangers are built with durable materials and comply with safety standards.
The pressure-containing components (tank and coupling flanges) and the heater, depending on the operating conditions, can be made of:
For the heating elements (heating bundle) the following materials can be used:
The electrical enclosure for the heater connections designed in Ex-d execution, can be made of:
The electrical enclosure of the electric heater connections, designed in Ex-d execution, depending on the system’s maximum operating temperature, can either be in direct contact with the heater flange or feature a “cold head” remote design for additional protection. The protection rating can be IP55, IP65 or IP66 with a sealed gasket ensuring airtight closure.
The control and safety instrumentation (thermal sensors) installed on the electric heat exchanger is mandatory for Atex certification and fully compliant with regulatory requirements.
Together with the heat exchanger, Reco supplies insulation supports made of the most suitable material for the installation site, lifting eye bolts for safe handling of the heat exchanger, tank support saddles for secure mechanical fastening and tank connections (venting and draining).
Electric heat exchangers with Atex – Ex certification can be equipped with the following accessories:
For electric heat exchangers, the following documentation is provided within the final certification package accompanying the product:
Reart manufactures process skids and supplies the turnkey package by supplying, in addition to the electric heat exchanger, the relative electrical command and control panel of the exchanger for safe area and Ex classified area (see section relating to “Electrical Panel”).
Reart is able to provide the following services to support the products supplied:
Reart S.r.l. Holds Atex product certifications for both liquid and gaseous fluids with the following classification in compliance with Atex directive 2014/34/EU:
II2G Exd IIB T1 ÷ T4 IP 65
certified for use in hazardous areas (zone 1 & and zone 2), covering IIA and IIB groups, according to EN 60079-0 and EN 60079-1 standards
|
II 2G |
Heater for surface installations with the presence of gas and vapours, category 2, suitable for zone 1 and (with redundancy) for zone 2 (2G) |
|
Ex d |
Explosion-proof heater with explosion-proof terminal box. |
|
II B |
Group II B enclosure suitable for Group II A or II B substances (gases) |
|
T4 |
Housing temperature class (maximum surface temperature) suitable for the corresponding temperature class of the flammable substance (gas) |
|
|
Marking of conformity with ATEX Directive 2014/34/EU and related technical standards. |
|
CE |
Marking of conformity with applicable European directives |
|
AB xx ATEX yyyx |
AB : name of the laboratory that issued the EC certificate xx : year of issue of the certificate yyy : type certificate number x : condizioni particolari d’impiego |
Group II B enclosures are also suitable for II A environments
The explosion-proof enclosures are designed for service with ambient temperature and temperature class T1-T4.
| Temperature classes | Temperature °C |
|---|---|
|
T1 |
< 450 |
|
T2 |
< 300 |
|
T3 |
< 200 |
|
T4 |
< 135 |
|
T5 |
< 100 |
|
T6 |
< 85 |
Table of Heater Temperature Classes on Flange in Atex – EX execution according to the system operating temperature
Together with the product certification, Reart has obtained the notification relating to the production of products in Ex execution, in its plant in Frossasco (TO).
All products supplied by Reart in Atex-ex execution are accompanied by the “Declaration of Conformity” with reference to the Atex Directive and applicable regulations.
To find out more about our products or to get a customised quote, please complete the form on our website and our team will provide you with all the information you need.
Atex-Ex certification ensures that equipment is designed to operate safely in potentially explosive atmospheres containing flammable gases, vapours or dusts. Atex-Ex electric heat exchangers comply with the Atex Directive 2014/34/EU, ensuring high safety standards in industries such as chemical processing, petrochemical and oil & gas.
Atex electric heat exchangers offer several key benefits, including:
The service life of an Atex-Ex electric heat exchanger depends on the operating conditions and quality of maintenance. However, due to the high-quality materials and robust design, these units are built to last for many years. Regular maintenance and adherence to the specified operating conditions will ensure maximum durability and optimum performance over time.
VIA PINEROLO, 20/2
10060 FROSSASCO (TO) ITALY
PHONE +39 0121.35.29.77
FAX +39 0121.35.29.68
Ufficio Vendite sales@recogroup.it
Ufficio Acquisti acquisti@recogroup.it
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P.IVA 03948060011
VIA PINEROLO, 20/2
10060 FROSSASCO (TO) ITALY
PHONE +39 0121.35.29.77
FAX +39 0121.35.29.68
Ufficio Vendite sales@recogroup.it
Ufficio Acquisti acquisti@recogroup.it
Amministrazione amministrazione@recogroup.it
P.IVA 04727180012
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