Water is the most important fluid for life, and there is no living being that can survive without it. However, water treatment is also essential for the industry as a whole. From cooling systems to hydroelectric generation processes, concentrators, evaporators, reactors, etc., all of them require water (in its various states) to perform their function correctly. In Lidering, we discuss the water treatment process and how to optimize the use of water resources, which require specific solutions to ensure water efficiency. Industrial challenges using water as the primary fluid There are many industrial sectors dedicated to water treatment in order…

Pump rings are elements that ensure the correct operation of a mechanical seal exposed to high temperatures. Temperature is a key factor to consider in the operation of sealing solutions. Depending on the temperature range in which our system operates, we must choose different designs of mechanical seals and different types of materials for their components. If you want to know more about how do high temperatures affect mechanical seals and how can pumping rings be helpful, watch out for this article. High temperature effects on mechanical seals Applications that require working with substances at high temperatures are very common…

EPI Industries Family of Companies, to which we belong, has obtained the Silver medal of the EcoVadis certification, one of the main corporate sustainability rating platforms worldwide. Lidering’s commitment to sustainability Lidering’s commitment to integrating sustainability into its areas of work, together with its constant interest in wanting to be part of a responsible industry for a safer future, has earned it the EcoVadis Silver Medal, now reaping the rewards of the work and effort made to achieve one of our corporate purposes “Helping the industry build a sustainable future”. One of Lidering’s goals, along with helping to create a…

Reactor seals are complex systems manufactured with high added value components for any industrial sector. At Lidering we have the knowledge and experience to manufacture reactor seals. But who is responsible for the repair of a reactor seal? Our Lidering Production Centre includes facilities for the repair of all types of mechanical reactor seals, so we can say that we have the infrastructure, knowledge and experience to repair reactor seals, with the aim of getting them back to working as they did on the first day. This seal repair process helps us to be more aligned with the Sustainable Development…

In Lidering we want to be your allies in the sealing systems. Therefore, in addition to a wide range of mechanical seals, we offer a wide variety of services related to sealing in the industrial field. In this post we want to show all them. You will be impressed with all services we offer ! Experience in sealing solutions  Our more than 45 years of experience in mechanical seals allows us to provide a premium service to our customers. The know-how we have gained over more than 4 decades gives us the capacity, experience and resources to offer the right…

Did you know that the manufacturing process of a mechanical seal goes through different stages? The manufacturing process we carry out in Lidering is carefully analyzed to optimize our resources and give an excellent service to our customers. The experience and the years that guarantee us, has made us follow a different workflow according to the needs that have been happening, until arriving at a working system, optimal and efficient. The group of experts in mechanical seals and associated products for the industry, added to our ability to adapt to the requirements of our customers, is a combination that forges…

Mechanical seals are elements manufactured to provide a physical and watertight barrier. The main advantages of using mechanical seals over other sealing systems are that they prevent leakage, reduced friction, shaft wear and consequent power loss, among other benefits. But what should be taken into account when deciding on the most suitable mechanical seal material in each case? There are different types of mechanical seals, but in order to offer the right sealing solution for each application, it is important to choose the correct type of seal and the correct materials. The wrong choice of materials could end in a…

If you want to know all the existing types of mechanical seals and their specifications, you are in the correct place. In this post, we are going to explain you every type of mechanical seal that we have in Lidering, in order to make easier to you to choose the best one for your application. We start this express tour for each of the mechanical seals!   Index How mechanical seals are grouped? Multi-spring seals Wave spring seals Conical spring seals Bellows seals Rubber bellow seals Metal bellow seals PTFE bellow seals How mechanical seals are grouped? In Lidering we…

Cartridge mechanicals have long time being a right option in several sectors and applications. Thanks to the benefits they provide, including their versatility, they become essential elements in the pumping systems. At Lidering, as a sealing solution manufacturer, we have some models of cartridge mechanical seals. Two of them are very important in our catalog; the simple model LSC40 and the double one LDC40. You may wonder what the differences are between a simple and a double Cartridge mechanical seal. In this article we want to explain what they are, which differences are between them, what the criteria selection will…

The revolution of the predictive mechanical cartridge seals LID e-Control was born to respond to the need for control of sealing systems in the industrial field with a new concept; the predictive cartridge seals, able to offer more information about the production process. This new technology, based on sensors for cartridge seals, provides real-time information on the conditions under which the mechanical part is working. Technology presented in Achema, the most important fair in the sector LID e-Control Predictive Cartridge Seals Usefulness of the data LID e-Control features Sustainable system Technology presented in Achema, the most important fair in the…

We have been waiting for it from a long time ago… and finally here it is, the LSC41! We are glad to announce our new mechanical seal, the LSC41. In this blog we want to explain you the specifications and advantages. Are you ready? What is the LSC41? LSC41 specifications Environmentally friendly LID eCONTROL technology What is the mechanical seal LSC41? The mechanical seal LSC41 is an evolution of the LSC40 cartridge, a seal that have proved a great reliability and versatility in many applications. It has been tested successfully by many clients from different countries and sectors! By comparison,…

On 26 and 27 September, the Flow Process Forum took place at the Vogel Würzburg Convention Center in Würzburg, Germany. Learn more about our participation in this forum in this blog article! Flow Process Forum Programme Flow Process Forum 2022 Pump programme Hydrogen Programme Exhibitors in the Flow Process Forum Dry Seals Flow Process Forum  The Flow Process Forum are an annual event organised by the Vogel Communications Group that focuses on pumps and hydrogen.  These industrial process components play an important role avoiding costly repairs and downtimes in production processes through targeted care and good pumps maintenance.  Hydrogen, the…

In this blog post we will explain the main failures in mechanical seals and their possible solutions. Take note of this! Issues causing a failure in the mechanical sea Aspects that can cause the failure Fallos en el montaje de sellos mecánicos Other causes of failure on the mechanical seals Issues causing a failure in the mechanical seal At Lidering we count with a large experience in mechanical seals. So we can ensure than 99% of mechanical seal failures are caused by what we know as “dry working”. When we speak about dry working we refer to the situation in…

This 2022, once again, we have participated in ACHEMA, the most important European event for the process industry, especially for the chemical and pharmaceutical sectors. After having suffered several cancellations and date changes due to the Covid-19 pandemic, this long-awaited event has been held. The chosen dates were between August 22 and 26, in Frankfurt, Germany. All the participants, exhibitors and visitors have agreed that this selection of dates wasn’t well suited, especially for visitors from the south of Europe. Our presence in ACHEMA Our stand was in the Hall 8 of the Exhibition Centre Frankfurt, focused on pumps, compressors…

Recently Lidering has incorporated to its catalogue a new LMS23 seal, designed and produced by our industrial engineers from the custom manufacturing section. The passion is among our corporate values. We are passionate about what we do and therefore we are constantly improving and innovating our services and products. Part of this passion and innovation make us to investigate new solutions that add value to anything we offer our clients. This desire for continuous improvement and our expertise as leaders in sealing solutions create an ideal scenario to achieve our goal. For this reason, in this blog we will detail…

Our engineering department has designed the new seal LDC80G for gas barrier reactors. At Lidering, we count with a manufacturing and seal repairing centre that allow us to design and manufacture high performance seals. The productive capacity of our manufacturing centre and the expertise and knowledge of our engineers have provided the possibility to present a technical solution for industrial reactors. Keep reading to know more about the characteristics of the LDC80G seal for reactors and all the special features that make that seal an ideal solution. Appropiate solutions for reactors In several industries, such as the chemical or pharmaceutical…

The mechanical seal is one of the most important elements in any environment that will require an optimal sealing in transfer of a fluid. Majority of industrial machinery has equipments such as compressors or pumps. These equipments are prone to leaking fluids that lead to a decrease in efficiency or even to a breakdown. As experts in mechanical seals and products associated with the industry, at Lidering we dedicate a large part of our efforts to perfectly understand the behavior of these elements in order to satisfy the most demanding needs of our customers. The purpose of this introduction is…

Every two years, Exposolidos fair takes place in Cornellà de Llobregat and l’Hospitalet. We are pleased to announce that this year, Lidering will attend the 10th edition from the 10th to the 12th of May 2022. The congress will be distributed in two centers: la Farga de l’Hospitalet and la Fira de Cornellà In the last one, we will expose on the STAND E359 / F359. This event about Technology and Solid processing, is the main congress from southern Europe, specialized in manipulation and processing of solids, bulk materials, dry powders, semi-solids and separation of solids and liquids. Our goal in…

In the article posted today, we are going to pay special attention to one of the essential element of mechanical seals: the spring. This compound is responsible of many aspects extremely important for the right performance of the seal and, by extension, must be the object of attention and evaluation. Specific coating treatments are one of the main points to maintain a good state of the spring and, by extension, to extend the service life of the mechanical seal. There is a large variety of industrial treatments for springs of mechanical seals so choosing the appropriate solution is a matter…

From the sterilization of the elements – necessary and crucial in the food and pharmaceutical industry – to the great part of specific process in the oil sector… In the industrial field, there are some common and different applications that require working with substances at high temperatures. Regardless the field we concern about, when working at high temperatures, it is required to pay special attention in term of both design and manufacture of the sealing elements included in the specific machinery or equipment. Below we present some of our sealing solutions intended for these environments of maximum exigency. Our seals…

Mechanical seals in contact with food must meet the demanding standards applicable to the sector, such as the FDA or EC 1935/2004 as two of the most relevant. How do these certifications apply to mechanical seals? EC 1935/2004 Compliance is obligatory, and it controls the transfer of substances from the materials from which the mechanical seal has been manufactured to the product with which it is in contact (milk, juice, chocolate, jams, etc.). The aim is to guarantee that all materials in contact with food are safe and meet the same quality requirements. FDA (Food & Drug Administration) The North…

In order for a mechanical seal to work correctly, it is essential to guarantee adequate lubrication and refrigeration. In some applications, this is achieved thanks to the use of a secondary fluid, when the primary fluid does not possess the necessary properties. The provision of this additional fluid involves the inclusion of a secondary circuit, which may be open or closed, and may or may not be under pressure. In the case of opting for an open circuit, the complexity and installation costs are very low, but fluid consumption (usually mains supply water) can become a problem, above all due…

Grinding mills for paints or pigments require special sealing systems, as these products are extremely abrasive. The grinding mills can be either vertical or horizontal. The grinding takes place in a closed chamber in which very hard pellets of various oxides, glass and silicates, among others, are added, which are agitated via an axle with “fingers” where the pellets collide and the required texture is achieved. These mills, both vertical and horizontal, have a pump with a mechanical seal which pumps the paint. This technology is used for the production of high-quality paints and varnishes. This mill grinds paint pigments,…

Sealing is an essential requirement in order to guarantee the safety and efficiency of industrial machinery. Being aware of the relevance of sealing quality in equipment brings with it the imperative to opt for increasingly personalised approaches. As a result, at Lidering, in addition to providing a wide range of mechanical seals for industry, we also offer an extensive range of services related to sealing in the industrial field. Let’s tell you about them.   Lidering Catalogue of Services Our industry support services are aimed at both companies and manufacturers. They are all implemented in accordance with our commitment to…

Some mechanical seal applications involve working at high temperatures, either with respect to the fluid product, or when it is the secondary fluid or barrier fluid. In these cases, it is possible that, in order to control the process, a high thermal dissipation capacity is required. For those applications, Lidering has an advanced liquid refrigeration system, the LHE. This is a multi-tubular heat exchanger designed in accordance with API 682/ISO 21049 standards. They are often used for API 21, 22, 23 or 41 assemblies, with the barrier fluid flowing via the interior multi-tubular circuit, and a second refrigeration fluid, for…

The chemical sector involves working with aggressive powdered substances, these substances erode fundamental parts that ensure the proper functioning of the equipment; these include screw conveyors, rotary valves and internal agitators. The abrasive nature of these substances is coupled with the difficulty of having to maintain a specific and suitable level of humidity for the vast majority of applications. This removes lubricating or coolant fluids of any nature from the equation, and this is where the Dry Seals come to the fore.   Which specific applications do we recommend the Dry Seals sealing system for? As we indicated above, the…

  There are many applications that work with powdered or extremely viscous products which have no lubricant properties to permit the mechanical seal contact surfaces to function without immediately becoming worn.  Finding a sealing element that guarantees sealing without leaks and adds durability to applications of this type poses a difficult challenge.  Braided packing is often used, which gives rise to the disadvantages of this kind of element, such as inevitable leakage to a greater or lesser extent, the use of elements prone to wear such as sleeves to protect the shaft, frequent maintenance to replace the sleeves and change…

  Our knowledge and experience in mounting mechanical seals has enabled us to go one step further by being able to repair and improve the behaviour of pumps. At our facilities in Tarragona, we analyse pumping equipment behaviour and failures, and determine the most appropriate type of mechanical seal.     The main problems we usually find in the pumps we have to repair are: Leaks: they are the cause of half the problems we encounter that require improvement, according to statistics. In the case of aggressive chemicals, these leaks may pose a danger to people and to the environment….

Rotary seals are systems that are used to seal unions between fixed and rotating elements.     They basically consist of a connection guide element, a graphite bearing or bushing and a mechanical seal to seal the union. There are rotary seals for water, steam, oil and many other applications.     They usually function by letting the fluid to be sealed pass through the rotary connection, which is known as a one-way rotary seal. There are also seals that permit the fluids to pass through in both directions, without the incoming fluid being mixed with the outgoing fluid. This…

  The food concentrates industry is one of the most powerful sectors in Southern Europe. There are many plants dedicated to manufacturing concentrated products such as tomato, citrus fruit, milk, sweets, alcoholic beverages and aromatic essences, among others. The concentrate production process consists basically of eliminate the water presence in the raw material to obtain a product with extremely intense properties. At the same time, their volume and weight are reduced by more than 90%, which facilitates their transportation and storage. What is more, concentrated products can be stored for long periods of time without spoiling and without their properties…

As we already saw in previous blog entries, agitators/reactors are a very special type of machine that is usually involved in the main processes of many facilities. This type of system requires mechanical seals that provide the highest level of service. In some cases, apart from the usual requirements for agitators to be able to operate in dry conditions, at high temperatures and with axial/tangential force, there are other, more demanding requirements such as being in contact with extremely aggressive chemicals or abrasive substances. The agitators that operate under these conditions usually have enamel-coated interiors and they are known as…

Agitators are of the most common industrial systems. They can be used in practically any sector, with the chemical and food industries being those in which this type of machinery is used most. There are many agitator/mixer designs with a greater or lesser degree of complexity, but they all have a common basic concept; they are used in tanks or similar devices into which different substances are poured and stirred using a rotating paddle system to mix them. Reactions usually occur between the added products, and for this reason these mixtures/reactions must remain under controlled pressure and/or temperature conditions. Again,…

As already seen in the previous blog entry, in an agitator/reactor, it is very likely that a cartridge seal will operate under dry conditions, as the fluid/product is at the bottom of the system and hardly enters into contact with the seal. In such conditions, it is essential to use a lubricant other than the product fluid. The LDC40 cartridge seal is a double seal that facilitates the use of a secondary fluid (barrier fluid) to lubricate the seal. Another benefit of using a secondary fluid is that the maximum linear operating speed of the seal is higher than that…

There is a great variety of brands and models of pumps that, due to their design and structure, allow the assembly of different types of seals and other sealing systems like packing. There is a tendency, in such cases, to adapt the pump so a mechanical seal or a cartridge can be used without it being necessary to make major modifications to the housing. Nevertheless, some of these brands, due to their special structure, which is specifically designed to work in particular applications, use special designs of mechanical seals made to fit in the housing of these pumps. This type…

To manufacture the paper used in high-quality prints like magazines, catalogs, etc., a special treatment called stucco is required. This process consists of adding one or more layers, based on the quality, of a special mixture of Calcium Carbide (70%), Latex (20-30%) and other substances like starch and NaOH, to the finished paper. This mixture is transformed into a viscous and adhesive substance that must be applied in very specific concentrations and dry in short spans of time, so that the paper does not stick when winded and forms a solid cylinder of unusable material. The properties of this substance, added…

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 the flatness and…

Often, work conditions under which a sealing system must function can be very demanding: high pressures, extremely elevated temperatures, paste-like or chemically corrosive products, high frequency and intensity vibrations, etc. In the face of extreme conditions, a peak performance sealing system is required, such as our range of metal bellows mechanical seals. ADVANTAGES OF METAL BELLOWS MECHANICAL SEALS: These kinds of seals characteristically have a metal bellows instead of a spring/springs in order to maintain the strength between friction faces. Metal bellows present some advantages in relation to conventional spring systems (simple springs, multisprings or wave springs): · Increased capability…

The industrial refrigeration sector requires very complex and special systems and machinery, there even are specific products and solutions for each application. The most characteristic element of industrial refrigeration systems is the compressor. It compresses the refrigerating fluid and makes it circulate so it can absorb the heat from the space that needs to be refrigerated. If you wish to know more, you can consult the following PDF about our industrial refrigeration compressors. Characteristics of industrial refrigeration compressors • High frequency vibrations. – They can endure high frequency vibrations, even over 4000 hz. • High pressures. – Compressors work in full…

  Itt is becoming more and more common for companies to set up preventive maintenance models, with planned stops that overtake production stops, failing of parts, and thus, fluid leaks. This enables companies to avoid emergency repairs. Therefore, it is fundamental to have not only the mechanical seal technically most adequate for appliance, but also the spare parts and resources to offer its repair. ADVANTAGES OF MECHANICAL SEAL REPAIRS It increases life cycle   Mechanical seals can be repaired, which means their life cycle is longer, considerably reducing maintenance costs.   The possibility of an improvement in design   Thanks…

Once again, Lidering will participate in the new edition of the International Exhibition Achema, which will take place from 11th to 15th June in Frankfurt. This event gathers the worldwide main actors of the chemical and pharmaceutical industry, and all the markets related to the development and evolution.  This is the Chemical and pharmaceutical Exhibition with main international economic impacts. In the Achema 2015 Edition, more than 165.000 people, from more than 100 different countries, have visited it with the aim of knowing the technologic advances and the leading companies in these sectors, in order to optimize process and products,…

To correctly define the cost of maintaining a system, it is necessary to consider all the relevant issues, in order to make the best decision about which elements to use and how. When sealing a pump, this exercise is even more complex compared to other systems. This article explains all the aspects that must be taken into consideration when selecting two of the sealing elements that are mostly used in pump maintenance: braided packing and mechanical seals, especially cartridge seals. Level of efficacy of a mechanical seal as opposed to braided packing The first aspect to be considered is the…