Le magazine Eureka Flash Info consacre un article à Lidering dans son numéro spécial pompes (nº91). Eureka Industries, fondée en 1988 est leader en formation technique. Cet organisme forme des équipes spécialisées dans les process industriels des secteurs de l’eau, l’environnement, la chimie, l’alimentation, la pharmacie et l’énergie. En 1991, cette entreprise familiale décide de lancer un magazine technique sur le thème des équipements pour les fluides liquides et gazeux. Avec aujourd’hui près de 40000 lecteurs tous ingénieurs ou techniciens dans des industries de process ou dans les secteurs eau énergie, ce magazine est devenu incontournable : il tient les professionnels informés…

The Productive Centre in Reus has been Saqr-ATEX certified. This certification allows us to carry out repairs on non electrical equipment with ATEX certification of any type and category: mechanical seals, cartridges, pumps, agitators, etc.; Area 0, 1, 2, 20, 21, 22, etc.; while maintaining the same level of ATEX certification. As a reminder, the ATEX certification is applied to those devices that work, or can at any time find themselves working, in potentially explosive atmospheres. The ATEX normative classifies these situations using Areas, thus we have: Area 0 for applications in which the presence of an explosive atmosphere is…

Lidering has recently inaugurated the renewed facilities of his Mechanical Seals Productive Centre. The new facilities dispose of almost 1.000m2 of productive area, which makes possible the incorporation of automatic machinery. This will considerably amplify production capacity and allow for the execution of our processes in less amount of time. We are counting with machining lines that include lathes and conventional milling machines, as well as an automatic CNC line with milling capacity for serial production.  We have widened the isolated work area of graphite, incorporating a milling machine for the sole purpose of machining this particular material. The room…

Companies that are really committed to the improvement of their processes are all betting on investing time and effort in their staff’s training. Lidering and Epidor Technical Distribution actively share this principle, and following a joint activity programme, they imparted a seminar on Mechanical Seals, materials and specific applications of the iron and steel industry in SIDENOR ACEROS ESPECIALES, in Azcoitia. 15 people involved in the maintenance service attended this seminar. During the session, different types of materials available for manufacturing friction surfaces in mechanical seals were analysed according to the specific needs of each application. One of the improvements…

When a process implies working with chemically very aggressive fluids, our systems’ components must be prepared for it, including mechanical seals, thus avoiding their becoming of the weak link in the installation. Acid and alkaline solutions in very high concentrations are common both in the chemical and food industries. In the automotive sector, for example, decanting pumps of acids, such as hydrochloric and sulphuric, can be found as mordants to strip metal plates destined to bodywork. In the paper industrya multitude of alkaline, such as sodium hydroxide, and acid substances, like chlorine dioxide and hydrogen peroxide, are used to obtain…

It is known that a mechanical seal is a complex device in its design, assembly and functioning. Nevertheless, its efficacy does not often depend on any of the aforementioned points but on another one, which is not always considered: the state of the installation of mechanical seals for pumps. The state of the installation and the shaft where the seal must be assembled is determining for the mechanical seal’s proper functioning. It is common for these components of the pumps to suffer from wear and damage at the time of the repair. The first element that must be revised to…

Water is the most important fluid not only for life but also industry in general. Refrigeration systems, concentrators, evaporators and reactors need either water or steam in order to function correctly. This is why, nowadays, it is essential to make good use of hybrid resources, which require specific solutions. There are many industrial areas that also work with water as a main fluid, and some of these can acquire great economic importance. Out of all water-related industries, the most important might very well be hydroelectric generation plants, desalination plants or pumping stations. One of the most characteristic factors of these…

For applications where working under high pressures is required, Lidering has developed the mechanical seal LSC10B-FQ, which has certain characteristics that provide it with excellent stoutness and reliability. These kinds of seals are usually used in power generation industries, not only thermal plants but hydraulic plants as well. They can also be found on the oil and gas industries. How does the mechanical seal LSC10B-FQ work? This cartridge seal has a special seal assembled inside in order to work under high pressures: a balanced multispring seal. The balance of its friction faces is designed to reduce their wear when under…

From its start more than 40 years ago, Lidering pursues constant improvement, quality services and client satisfaction, and it also respects and endorses the main European and worldwide normative. In this desire for constant improvement, Lidering has joined as a full right member of the ESA, European Sealing Association, as of the past March. What is ESA? ESA is a non-profit commercial association, which represents fabricants and suppliers of sealing devices and material. ESA members form the vast majority of sealing industry in Europe. Just like Lidering, ESA bets on safety, energetic efficiency and environmental protection. Its goals are: ·…

When the value of a mechanical seal is high and the conditions of its parts allow it, there is the possibility to repair it, thus significantly saving money on the system’s maintenance. Repairing operations on mechanical seals The operations carried out during the repairing of a mechanical seal mainly are as follows: · Rectifying/lapping of friction faces. · Sanitation/fabrication of metal components. · Replacing of secondary seals. Rectifying/lapping of friction faces in mechanical seals Friction faces in mechanical seals usually are the most damaged parts after a certain time of use. In order to repair them, they have to regain…