mechanical seal catalogue supplier

The scope of our mechanical seal product range far exceeds any other seal manufacturer. From small elastomer bellows seals used in millions of domestic water pumps to double mechanical seals that ensure maximum sealing safety and large, highly customized dry-running gas seals for mission critical high speed turbo compressors, John Crane has the right product for any application.

Our world-class rotating equipment technologies, paired with an unmatched breadth of applied engineering expertise, meet virtually all international standards including API 682 and help plants reduce maintenance costs, slash down time and improve reliability. When it comes to keeping your rotational equipment running 24/7, John Crane’s comprehensive range of mechanical seals and systems has you covered.

A range of seals for mission-critical applications, designed to solve the application-specific challenges of each industry. From API 682 compliance for the oil and gas industries, using gas seal technology on our innovative pump gas seals to eliminate fugitive emissions, dealing with slurry in the mining and minerals processing industries, to the difficulties associated with maintenance on large pumps and rotating equipment — we have a solution.

Dry-running, non-contacting gas seals have been the industry standard since the early 1980s for turbomachinery. John Crane gas seals, separation seals and support, monitoring, control and conditioning systems — the heart of any reliable sealing solution — are constantly evolving to meet the needs of customers. The product portfolio is supported by unrivaled global service capability providing repair, retrofit, gas seal storage and reliability expertise, delivering total solutions throughout the product lifecycle.

In industries like chemical, pharmaceutical, pulp and paper, and food and beverage, safeguarding and compliance with industry standards, avoiding contamination and efficiency are always top priorities. Our range of vessel and agitator seals optimize equipment performance, maintain product purity and conform to industry regulations, no matter where you are.

Our range of mechanical seals, packing and bearing isolators combines advanced, thoroughly proven technologies with extensive industry expertise to create a range of products characterized by innovative design concepts and outstanding manufacturing quality. Tried, tested and effective solutions for virtually any application that deliver robust performance, reduced installation times and lower maintenance costs.

Create the optimum operating environment that will ensure outstanding seal performance and reliability. Our comprehensive range of engineered pressure reservoirs, gas seal control panels, heat exchangers and abrasive separators can be combined to produce the perfect seal support system for any application.

Designed to overcome rigorous challenges, our comprehensive suite of seal face technologies combat limited seal face lubrication that adversely affects reliability, cost and durability. Our engineers designed these face treatments to extend rotating equipment life through advanced micro machined patterns and features improving seal face lubrication that optimizes equipment performance. We deliver the right face technology for the right application.

Lidering Safe Industry Empreprise Secteurs Auxiliary Products LC LHP LQT LS LST Spring Seals Stationary Parts Special Designs RMS Seals Repair workshop,Quality control, checking and testing Certifications General Information Chemical Resistance Chart Compatibility Chart Related Products Consult our cartridges catalog Identification Guide Mechanical Seals Notes Axial Spring Seals: Conical FH / FHC FN / LS15 and FN.NU / LS15DIN LS18 / LS19 LS18B LS60IN / LS60IL RN / LS60 and RN.NU / LS60DIN RNB / LS60B and RN.NB / LS60BDIN Axial Spring Seals: Cylindrical I Slim LS40C

We are close to you... As time goes by, we feel extremely satisfied and proud to be able to contribute to and form part of a responsible, safe industry which is striving to build a better world and a safer future. We are convinced we can offer you a solution that will meet your expectations. Lidering was established in 1975 and specialises in designing, manufacturing, repairing and selling mechanical seals. We provide effective solutions worldwide. Our aim is to be recognised in the market for our accessibility and adaptability to the needs of our customers and the availability and...

Sectors Food and pharma The food and pharma sectors are especially demanding with respect to safety in their processes. It is very important to prevent contamination with the manufactured products and the halting of production lines during the entire work flow. For this reason, the use of CIP (Cleaning in place) or SIP (Sterilisation in place) processes is quite usual. The complex chemical mixtures (alkaline solutions) used in CIP processes may damage the seals of the mechanical seals in a short time, and in SIP, high temperatures reaching values of up to 150º C can destroy conventional...

In the chemical industry, the habitual processes require sealing elements for materials with high chemical resistance. For transferring very aggressive or corrosive chemical fluids that are clean or with particles and have high viscosities, along with high temperatures and pressures, the mechanical seal materials and the type of assembly must be correctly defined: single, double, external or in accordance with API plans. Furthermore, the applications require sealing systems that guarantee safety, preventing the leakage of corrosive or flammable products that could enter the atmosphere. In...

Sector Water treatment In water treatment operations, different processes are carried out in order to obtain a product that complies with the stringent health and legal legislation of each country. Even though water is the main element of the whole process and the main fluid used, the difficulties posed in sealing it are just as challenging as in other sectors. During the different treatments to which water is subject, the mechanical seals may come into contact with sediments, organic matter, dissolved substances such as calcium and magnesium (hard water), sulphate and carbon dioxide (acid...

Sector Maritime Pumps installed on ships must be extremely reliable and durable. Use of different machines: cooling pumps, fire fighting pumps or boiler supply pumps, meaning that the types of mechanical seals used in this industry are quite diverse. The main applications are for: • Cooling machinery • Firefighting systems. • Feeding boilers. • Pumping ballast water. A wide range of mechanical seal designs exist for this type of pumps, which operates in especially difficult conditions with high salt concentrations (this parameter varies, depending on the sea), at high pressures, etc. Within...

SPECIAL DESIGNS It is not always possible to use a conventional mechanical seal. Complex applications with special requirements and pumps with small housings need mechanical seals with non-standard profiles. Our engineering centre designs and manufactures customised solutions adapted to the specific needs of our customers, in large or small production runs.

The RMS seal range is compatible with the most popular pump brands: Flygt®, Grundfos-Sarlin®, ABS®, Alfal Laval®, Hilge®, APV®, Fristam®, etc. These mechanical seals have special designs for wastewater pumps, heating, food products, pharmaceuticals and many applications in all kinds of industrial sectors. In most cases, when a pump is repaired, the mechanical seal is not the only element that is replaced. The renewal of other parts is also recommended, such as O-rings or joints with special profiles, bearings, pins, flat gaskets, etc. We offer kits containing these elements which are...

REPAIR WORKSHOP, QUALITY CONTROL Repair workshop Lidering’s modern, adequate equipment enables it to execute repair and transformation operations on mechanical seals and cartridges. The process commences by diagnosing the condition of the part, and after this, we execute the necessary processes for cleaning, polishing and lapping the contact surfaces, grinding parts and replacing components, etc. After carrying out these operations, the sealing of the repaired parts is checked by pressure test, to ensure that the part is ready for operation in any application that requires sealing of the...

ISO 9001:2015 certified. Custom manufacturer of abrasion, acid, alcohol, alkali, oxidation, ozone, radiation, sunlight and water resistant rubber and plastic O-ring seals. Made from EPDM, butyl, fluoroelastomer, fluorosilicone, natural rubber, neoprene, nitrile, NBR, HNBR, SBR, silicone, high tear strength silicone, TPR, TPU, TPE, thermoplastics and polyurethane. Capabilities include injection molding, die cutting and prototyping. Assembly and PTFE coating additional services are also provided. Serves the aerospace, automotive, commercial, construction, dental, electrical, food handling, laboratory, marine, mining, municipal, oil and gas, recreational, retail, transportation and wastewater industries. Meets ASTM and SAE standards. Six Sigma certified. JIT delivery. Overseas sourcing options also offered.

Mechanical seals are end-face seals that use a pair of faces perpendicular to the rotating shaft (sliding surfaces) to seal. The sealing faces, smoothly finished with high accuracy, enable long-term maintenance-free usage.

Mechanical seals manufactured by Eagle Industry Co., Ltd. are products achieving excellent performance and low running costs that feature highly accurately finished flat sealing faces, enabling long-term maintenance-free usage.

Mechanical seals withstand usage in various applications in different pumps for automobiles, households, civil engineering and construction, and in processing and chemical fields such as petrochemicals, nuclear energy, and space development, and have a wide range of use.

As most engineers know, a successful seal must be designed to give long life, reduce maintenance and provide automatic self-adjustment. The seals in the U.S. Seal Mfg. line meet these basic requirements. In addition, they offer other important advantages to the seal user.

ABSOLUTE SEALING. Resulting in less pumpage loss, cleaner facility environment, reduced fire hazard, no danger from fumes and no contamination of the fluid being handled.

NO RUBBING FRICTION BETWEEN SHAFT AND SEAL PARTS. Eliminate expensive shaft and sleeve replacement by replacing your old packing with new state-of-the-art U.S. Seal Mfg. Mechanical Seals.

GREATER FLEXIBILITY OF SEALS MEANS LONGER SERVICE LIFE. Seals have more flexibility than packing and are able to compensate for shaft whip, axial and radial end play, as well as vibration and wear of the sealing faces.

EXTREME FLAT SURFACES OF MATING FACES. Care is taken to furnish precision lapped sealing surfaces with a flatness within three light bands maintaining the necessary face film lubrication.

Main catalog seal supply systems. The complete product portfolio of systems and components for cooling, flushing, pressurization and supplying liquid and gas-lubricated mechanical seals e.g., quench and thermosiphon systems, heat exchangers, barrier fluid systems, leakage monitoring and seal supply systems in accordance with API682.

Mechanical seals are indispensable for sealing rotating shafts. They make sure that the fluid handled remains in the system, prevent emissions and thus protect the environment from contamination. High-quality shaft seals in the form of mechanical seals also ensure maximum economic efficiency and operating reliability for pumps. This is crucial because the majority of repairs arise due to sealing problems.

And this is where KSB’s mechanical seals can make a difference: as well as impressing with a robust design, they offer straightforward installation and optimal integration in the seal chamber – ensuring reliable and efficient system operation.

ISO 9001:2015 certified. Custom manufacturer of abrasion, acid, alcohol, alkali, oxidation, ozone, radiation, sunlight and water resistant rubber and plastic O-ring seals. Made from EPDM, butyl, fluoroelastomer, fluorosilicone, natural rubber, neoprene, nitrile, NBR, HNBR, SBR, silicone, high tear strength silicone, TPR, TPU, TPE, thermoplastics and polyurethane. Capabilities include injection molding, die cutting and prototyping. Assembly and PTFE coating additional services are also provided. Serves the aerospace, automotive, commercial, construction, dental, electrical, food handling, laboratory, marine, mining, municipal, oil and gas, recreational, retail, transportation and wastewater industries. Meets ASTM and SAE standards. Six Sigma certified. JIT delivery. Overseas sourcing options also offered.