The early days of Cotter Marketing, which started out as Cotter Marine, in the service and maintenance of large tankers, provided the impetus for the company’s all-round expertise in sealing and packing, both in the shipping and in land-bound industries. Cotter’s impressive record in the industry has led to distribution rights with top manufacturers, such as Chesterton, Magnaflux, Tekhniseal, Greene Tweed, Devcon, and more. Our listings below include a full range of mechanical seal types for rotary shafts. These include, but are not restricted to Cartridge, Cassette, Split, Gas, and Component Seals.
With all that training at our fingertips, we are ready and able to help. Your sealing decisions are, of course, industry-specific, and relate to your usage and operating environment. We’ve been there! We welcome any questions you may have about your plant’s sealing requirements.
Take a look at our Mechanical Seal listings below. The variety of our mechanical seal designs covers all possibilities. Our technical advisors, many of whom have at least 20 years’ experience in the field, look forward to working with you, designing solutions for your particular industry and plant.
Modular Design, Flexible Repair
Reliability, Ease of Installation
High Reliability, Reduced Gas Use
Think rotating equipment – think mechanical seals – think Cotter Marketing – think partnerships.
The processes at your power plant, mines, food or pharmaceutical plants, and manufacturing plants, rely on rotary equipment. We are all aware of the challenges involved in keeping pumps, mixers, and turbines safe and clean. Operating in tip-top condition is essential. Much depends on the effectiveness of various sealing solutions. The Cotter Rotating Equipment Solutions team is here to advise, implement, maintain, and help you operate at full capacity with our cost-effective solutions.
Mechanical seals are typically required where a rotator shaft enters the casing of a machine, for example, a pump. To familiarise yourself with our mechanical seal types, take a look at the listings. They vary quite extensively, depending on a number of factors:
Cartridge seals are pre-assembled and can be easily installed. A skills base is required but does not need to be advanced. Both single and dual cartridge seals are available from Cotter Marketing. Dual mechanical seals are a must when hazardous fluids are involved in the process.
Component seals are so called because the static components and the rotary components do require separate assembly on the rotary shaft. This should be performed by a highly skilled technician. This type of mechanical seal design is less expensive, but provides high quality solutions.
The introduction of cassette seals into the market place was a further step along the path towards seal standardization by using a modular gland and cassette system. This has also allowed plants to decrease spares inventory.
The cassette design, and the common universal gland of both the S10 and S20, make repairs a cinch, requiring a simple cassette replacement.
Ease of assembly and a major saving of time, are the most important advantages of split seals. The design involves a split of the seal into its two halves, which are then joined together on the shaft within the equipment. There is no need to otherwise assemble the seal or to disassemble the equipment. Although the concept of a traditional split seal design can lend itself to potential leaks, there is absolutely no concern about leaking when you purchase a patented, special-design Chesterton seal from Cotter Marketing. Their split seals are virtually leak-free, and their excellent record provides proof of this accomplishment!
Split seals are excellent solutions when fluid leakage prevention is a priority, such as in food, pharmaceutical, and many other industries using agitators or pumps.
Gas seals are ideal for conditions that require a contaminant-free product, or for an environment that cannot tolerate any emissions. Traditional gas seals used a liquid barrier, whereas today, gas seals are sealed directly. Chesterton seals from Cotter Marketing have improved on the improvement! In the event of gas flow interruptions, a liquid barrier takes over. It restores the gas barrier as soon as the flow recovers.
Gland packing materials tend to suffer from wear and tear after a while. Packing materials are made out of soft and flexible materials. These materials wrap well around a rotary shaft but don’t really stand the test of time. They are, however, easy and low-cost to repair.
Mechanical seals do the job well – that is – they seal. This keeps the environment around the processing equipment clean and safe. Mechanical seals are durable and rugged. They may be more costly at the outset, but in the long run, they will keep maintenance costs low in situations where strong sealing is required.
Component and cartridge seals are actually manufactured with the same components. As both names indicate, a component mechanical seal needs to be assembled by a knowledgeable technician prior to assembly; whereas a cartridge seal comes completely assembled as a complete unit. The implications of the two designs are quite easy to visualise. For example, the installation of a component seal is time-consuming, and is open to contamination. A cartridge seal, on the other hand, takes almost no time to install, and is protected from exposure to contaminants.
We provide a number of very successful solutions, some of which are custom-designed to suit the processes and industries of various production environments. The following is a short list of examples
Take a look at our selection of mechanical seals, then contact us to set up a Call Back session.
Cotter Marketing has a strong background in the inner workings of seals, packing, and gaskets. This experience has segued into marketing partnerships with leading manufacturers of the type of equipment in which the company was so fully immersed. Let us share our knowledge and our partnerships with you.
No solution is too complex for us. We are here to help with your sealing designs, including mechanical seals, gaskets, pneumatic seals, hydraulic seals, and pumping solutions. We also specialise in non-destructive testing, industrial lubricants, and metal and concrete coating.
It’s time. Contact us now!