Ensa has completed the installation of three heat exchangers of the JHR project

Maliaño, 22nd January 2020 – Ensa, Equipos Nucleares, S.A., S.M.E., a company located in Maliaño, has wide national and international experience in the manufacturing of large nuclear components, including heat exchangers, developed using different technologies and based on the standards and codes required by companies in the sector.

Ensa, as part of the Spanish contribution to the development and construction of the Jules Horowitz Reactor, is the company responsible for the manufacturing and installation of the primary circuit heat exchangers, which are currently under construction at the centre of the Cadarache nuclear power plant in France. The assembly operation carried out by the Cantabrian company has been completed on schedule. Ensa has completed the installation of the three heat exchangers of the JHR project, whose main objectives are the irradiation of materials and fuels used in current and future nuclear reactors, in order to guarantee the safety and production of radioisotopes for medical purposes.

The work carried out has been approved by the notified body. This procedure was essential in order to be able to start the work on site. The complexity of the process has led to Ensa being congratulated on the success of the complicated operation of introducing the exchangers at their final location, due to space limitations.


Ensa has completed the order for two steam generators, shipped for nuclear power plants in France

Maliaño, 14th January 2020 – On 10 January, Ensa, Equipos Nucleares, S.A., S.M.E., a company located in Maliaño (Cantabria), shipped two new steam generators, 900 Mw from Framatome, to France. These nuclear components, measuring 320 tons, 21 metres in length and 4.5 metres in diameter each, correspond to the model used for replacement in French nuclear power plants.

This shipment completes an order received at the end of 2012 for which the French company Framatome, (owned by Électricité de France (EDF), Mitbsubishi Heay Industries and Assystem), commissioned Ensa to manufacture three steam generators. Following the delivery of the first one in March 2019, shipped to the CNPE Gravelines nuclear power plant in France, owned by EDF (Électricité de France), Ensa has kept the other two nuclear components in storage pending the final decision on the assignment of the plant at which they will be installed.

Due to Ensa’s specialisation in the manufacturing of steam generators for the nuclear industry, a field in which it has already exceeded the figure of more than one hundred units for different countries, the company has become a reference in the sector at international level as a supplier to countries such as the United States, China, South Korea, India, Germany, France, Belgium, Sweden and Slovenia, in addition to working for the Spanish plants.

Ensa Group

The Ensa Group of companies is made up of the parent company Equipos Nucleares, S.A, S.M.E., which is 78.75% owned by Sociedad Española de Participaciones Industriales (SEPI) and 21.15% by Dirección General de Patrimonio del Estado and its subsidiary Enwesa Operaciones, S.A, S.M.E (ENWESA), which is 82.55% owned by Ensa.

Ensa specialises in the manufacture of components such as reactor vessels, including internals, supports and covers, steam generators, primary cooling circuit piping, pressurisers, heat exchangers, fuel element heads, fuel storage and transport containers and fuel racks.


Satisfactory participation of Ensa in Patram 2019

Maliaño, the 14th of August 2019.- For Equipos Nucleares S.A., S.M.E its participation in the 19th edition of Patram 2019, the international symposium on packages for the transport of radioactive materials held in New Orleans, has been highly satisfactory.

The state company based in Maliaño had a good visibility thanks to its stand which has allowed more potential customers to know the ENUN technology that it has developed through the design, licensing, manufacturing and loading campaigns of these casks for the storage and transportation of spent fuel.

Alejandro Palacio and Guillermo Calleja gave two presentations in which they developed different aspects of the ENUN casks. On the one hand, Palacio explained Ensa’s role in the fuel transport tests implemented in the ENUN 32P with the Sandia National Labs in 2017 through his presentation “Logistics preparation for the Multi-Modal Surrogate Spent Nuclear Fuel Transportation Test using the ENUN 32P cask” and Calleja reviewed the origin of the ENUN, as well as its current status and situation with “ENUN Cask – A successful history”.

This fair has meant for Ensa an excellent chance to show its products, capabilities and services of spent fuel management to numerous customers and demonstrate that it is at the forefront of the technique in the world of casks.

Success of the second session of the “Final Design Review” for the welding of ports of the Vacuum Vessel of the ITER in Cadarache

Maliaño, the 9th of August 2019.- The presentation and defense of the second package of systems and procedures developed by Equipos Nucleares S.A., S.M. E within the project of welding of sectors and ports of the vacuum chamber for the International Experimental Thermonuclear Reactor was celebrated successfully. On this occasion, the theme of the session was focused on the welding of “splice plates” of the ports of the fusion reactor .

The overall assessment was very favorable according to the Court’s evaluation, consisting of a multidisciplinary team of technical managers and experts from different areas of the ITER.

The third documentary package is being prepared and its delivery is scheduled for next September.

Ensa participates in PATRAM 2019

Maliaño, August the 5th 2019.- Equipos Nucleares S.A., S.M.E participates in the XIX edition of PATRAM 2019; the international symposium on packaging and transport of radioactive materials held from August 4 to 9 in New Orleans, United States.

Organized by the Institute of Nuclear Materials Management and the World Nuclear Transport Institute, it is sponsored by the Department of Energy, the Nuclear Regulatory Commission and the US Department of Transportation.

Every 3 years PATRAM provides to the representatives of industry, administrations and research organizations around the world the opportunity to meet and exchange information on different aspects of safe conditioning and transport of radioactive materials.

For the state company based in Maliaño, this event is also an excellent opportunity to show its products, capacities and fuel management services to numerous potential customers.

Ensa concludes successfully the electropolishing of a steam generator in France

Maliaño, 24th of July 2019.- Equipos Nucleares S.A., S.M.E completed successfully the electropolishing of a new steam generator ND 1300 at the Framatome facilities in Saint Marcel, France.

This is the sixth steam generator that the state company places in Maliaño makes to the French company. The first one was carried out in 2017, five more during 2018 and with this one the current order is concluded. Ensa is already preparing to electropolish another 8 steam generators also for Framatome but this time at its facilities in Cantabria.

The electropolishing of the channel head is carried out at the end of its manufacture, before the hydraulic test and aims to soften the microstructural irregularities of the surface to avoid the fixation of radioactive contamination during the service life of the equipment allowing the reduction of the operational dose rate during the maintenance interventions.

The surface treatment consists on two phases: a mechanical polishing by grinding with 7 different grains and an electrochemical polishing with current in an acid medium. The works are completed with the performance of the required controls, during and at the end of the process: visual examinations, roughness measurement, take of surface replicates for its later visualization in a scanning electron microscopy, cleaning verification and control of foreign objects.

Ensa has done these works with its subsidiary Enwesa.


Advanced welding processes of the CTA

The Advanced Technology Center of Equipos Nucleares S.A., S.M.E is always in continuous development. Currently, it  is developing a new advanced welding process. If you want to know more about its scope, we invite you to watch this video.

Vídeo Soldadura CTA from Equipos Nucleares S.A., S.M.E. on Vimeo.

Ensa´s Metrology Laboratory offers new developments and services

Maliaño, 9 of July 2019. – Equipos Nucleares S.A., S.M.E Metrology laboratory has expanded its portfolio of services so that, currently, it offers a new calibration service for accelerometers and ​vibrometers, both very demanded during industrial plants and wind farms maintenance.

These new services are included in the portfolio along with some other new calibration services for: explosimeters for hydrogen and explosive atmospheres, hot air welding stations used in SMD components, LASER displacement transducers with profibus communication, calibration of stroboscopes, calibration of scales for weighing trains, etc.

In addition, thanks to the development of the Metrology laboratory and the Automatic unit, it’s possible to test in ENSA pressure transducers with differential pressures and controlled temperature which allows to validate the characteristics and specifications indicated by the manufacturers.

Ensa and Shanghai Electric sign an agreement to enhance their collaboration in the Chinese nuclear market

Maliaño, July the 4th, 2019.- Equipos Nucleares SA, SME and the nuclear group of Shanghai Electric Corporation signed an agreement to continue and expand their collaboration in the Chinese nuclear market that includes the manufacture of main components for nuclear power plants and other equipment related to spent fuel and services in plant.

In recent months both companies have been working on the definition of a renewed collaboration agreement that was finally signed at the facilities that the state company has in Maliaño. In the coming months, both will work to materialize in contracts the efforts made to date.

Ensa was represented by a delegation led by its president, José David Gomila; its general director, Rafael Triviño; its director of Projects, Miguel Ángel Andérez; its director of Business Development, María Vega and its Commercial Nuclear director, José M. Zubimendi. For its part, the Chinese delegation was headed by the vice president of SEC, Lv Yachen; the president of SENPGC, Shao Jianming; and his Commercial sub-director, Zhou Jie.

Strengthen their collaboration

The signing of this agreement strengthens, even more, the collaboration that began in the nineties. Ensa and SENPGC give great importance to this agreement, since it establishes the lines of collaboration in a common benefit and that will open up possibilities for joint development in China to explore future projects.

During the meeting, a review of the international nuclear market was made and possible joint actions were identified in order to face the current scenario.

Already last april a delegation of Spanish public companies, led by Ensa and Enusa, made a visit to China to strengthen the already existing collaboration between these countries in nuclear matters.

SEC is a Chinese multinational that manufactures electrical and power generation equipment. It is the world’s largest manufacturer of steam turbines and is also dedicated to the design, manufacture and sale of products that include, among others, power generation, transmission and distribution equipment and transformers.

The Board of Directors of Ensa visit the Maliaño facilities

Maliaño, July the 2nd  2019.- The Board of Directors of Ensa visited recently the facilities that the state company has in Maliaño.

The counselors attended the most current issues of the company and analyze future needs. They also had the opportunity to visit the Advanced Technology Center and the workshop, knowing first-hand the latest advances in the model 1: 1 of the ITER project , as well as the different manufacturing states in which some of the large components that Ensa designs and manufactures are such as steam generators and casks for storage and transport of spent fuel.

Chaired by the president of Ensa, José David Gomila, the Board of Directors is made up of: Miguel Miranda, Jaime Sánchez, Elena Pastor, José Manuel Prieto, Inmaculada Soto, Iciar Amorrortu , Valentín Dueñas, .Juan Antonio Tebar and Margarita Ruiz. Joaquín Gallardo, director of Legal Advice and Secretary of the Board, closes the organizational chart.