HSMR34 and SeccoMix R are seals for every situation. Sealing technologies need to live up to the highest demands, especially for agitators with side and bottom entry drives, where the product literally presses down on the sealing gap.
EagleBurgmann has developed two series of modual mechanical seals to meet these unique requirements. HSMR34 is a liquid-lubricated and Seccomix R, a dry-running agitator seal. Both can easily cope with any installation situation, whether it's a top, side, or even a bottom entry drive.
HSMR34 and SeccoMix R are designed as pressurized double seals. The characteristic feature of both series is a solid counter-ring that extends into the product. This makes a decisive difference with several advantages, such as excellent thermal conductivity.
Mechanical seals are perhaps one of the most underrated and unappreciated parts of pumps or machines. They ensure that pumps, for instance, do not leak, causing damage to the rest of the machine.
In general, mechanical seals contain the fluid within machines, like pumps and mixers, where a rotating shaft passes through a stationary housing. It prevents visible leaks from leaking. The thing is that machines do leak about ½ teaspoon of liquid each day. But this is normal as the machine captures the moisture and is condensed within it. It also has lightly loaded faces that consume less power. Moreover, the machines suffer from less corrosion because the product or liquid is contained within the pump.
There are different types of seals that machines use and these include stationary seal, rotating seal, balanced seal, unbalanced seal, and mounted seal. The most common seal is the rotating seal and it is used as a component that holds rotating springs together.
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In this new mechanical seal video, GFS Mechanical Seal expert Lino Dimichino, discusses the typical mechanical seal repair and refurbishment process of a cartridge mechanical seal. This important service can help bring new life to your existing mechanical seals without having to purchase a new one.
Many customers of GFS choose to go the route of repair and refurbishment of mechanical seals as opposed to purchasing new ones. It can be more cost effective in many situations, and can make your old seals look just like new.
But what does a repair and refurbishment of a single cartridge mechanical seal look like?
Pumps are essential throughout the world. They are used to move all types of liquids in a wide variety of applications. Examples of industries where pumps are used are: Chemical & Pharmaceutical, Oil & Gas, Pulp & Paper, Power Generation, Water & Wastewater, Food & Beverage, Cosmetics, General Industrial, and much more.
Seals are an integral part of any rotating equipment handling fluids. There are a wide a variety of seals as well depending on what the end-user of the equipment is looking to achieve based on a specific application. For the purposes of this article, we will be focusing on mechanical seals. There are several types and arrangements of mechanical seals. Single component seals and dual component seals, single cartridge seals, and dual cartridge seals. Depending on your specific application and operating conditions, one of these seal arrangements will likely be specified.
If you want to drastically improve the efficiency of your pump and reduce maintenance, the first thing to do is change your approach to maintaining your pump. Focus not just on the specialized equipment your plant uses, but focus on valves, pipes, and other crucial operational equipment.
Did you know that the most common source of wasted energy in pumping systems has to do with seals that weren’t properly sized for their applications? This causes throttling of the pump’s flow, and reduces efficiency. Pumps that operate in this manner also produce higher levels of vibration, which will cause unnecessary damage and reduce the longevity of the seals.
This blog will discuss the root causes of mechanical seal failure and how to extend the life of your mechanical seals.
EagleBurgmann Cartex cartridge seals are fully pre-assembled and precisely installed component seals incorporated in a cover and shaft sleeve. The seals are installed in pumps in a wide range of industries including chemicals, water supply, paper production, food processing and many other applications. Cartridge seals are easy to fit, and they keep your running costs down.
A mechanical seal is a device used to contain fluid within a vessel where a rotating shaft passes through housing, or sometimes where housing rotates around a shaft. These vessels are usually pumps, mixers, agitators, grinders, etc. The purpose of a mechanical seal is to allow the shaft to rotate freely without allowing large amounts of fluid to escape.
A split seal comes in two separate pieces. Unlike ordinary cartridge mechanical seals, these two pieces can be installed or removed from around the shaft without disassembling the equipment. When joined, the sealing elements are mated to create a proper seal around the shaft.
The challenges facing process industries have changed although they continue to pump fluids, some hazardous or toxic. Safety and reliability are still of prime importance. However, operators increase speeds, pressures, flow rates and even the severity of the fluid characteristics (temperature, concentration, viscosity, etc.) while processing many batch operations. For the operators of petroleum refineries, gas processing facilities and petrochemical and chemical plants, safety means controlling and preventing loss of, or exposure to, the pumped fluids. Reliability means pumps that operate efficiently and economically, with less required maintenance.
A properly designed mechanical seal assures a pump operator of long-lasting, safe and reliable pump performance with a proven technology. Among multiple pieces of rotating equipment and a myriad of components, mechanical seals are proven to perform dependably under most types of operating conditions.
It is hard to believe that almost 30 years have passed since the mass promotion of sealless pump technology into the process industry. The new technology was promoted as the solution to all the issues and perceived limitations of mechanical seals. Some suggested that this alternative would eliminate the use of mechanical seals entirely.
However, not long after this promotion, end users learned that mechanical seals could meet or exceed legislated leakage and containment requirements. Further, pump manufacturers supported the technology by providing updated seal chambers to replace the old compression packing “stuffing boxes.”
Today’s seal chambers are designed specifically for mechanical seals, allowing for more robust technology in a cartridge platform, providing easier installation and creating an environment that allows the seals to function to their full potential.
In the mid 1980s, new environmental regulations forced the industry not only to look at containment and emissions, but also at equipment reliability. The average mean time between repair (MTBR) for mechanical seals in a chemical plant was approximately 12 months. Today, the average MTBR is 30 months. Currently, the petroleum industry, subject to some of the most stringent emission levels, has an average MTBR of more than 60 months.
Mechanical seals maintained their reputation by demonstrating the ability to meet and even exceed the requirements of best available control technology (BACT). Further, they did so while remaining an economical and energy efficient technology available to meet emission and environmental regulations.
Computer programs allow seals to be modeled and prototyped prior to manufacturing to confirm how they will handle specific operating conditions before being installed in the field. Seal manufacturing design capabilities and the technology of seal face materials has progressed to the point that they can be developed for a one-to-one fit for a process application.
Today’s computer modeling programs and technology allow the use of 3-D design review, finite element analysis (FEA), computational fluid dynamics (CFD), rigid body analysis and thermal imaging diagnostic programs that were not readily available in the past or were too costly for frequent use with earlier 2-D drafting. These advancements in modeling techniques have added to the design reliability of mechanical seals.
These programs and technologies have led the way to the design of standard cartridge seals with much more robust components. These included the removal of springs and dynamic O-rings from the process fluid and made flexible stator technology the design of choice.
The drive for operational efficiency, optimization of assets, and adherence to the International Standards Organization (ISO) 14001 Standard for environmental management systems and ISO-50001 standard for energy management systems must always be balanced against the bottom line.
However, it is fair to say in some cases this can lead to short-sightedness when it comes to selecting sealing solutions, with lower cost at point-of-purchase taking precedence over total cost of ownership.
Mechanical seals have been on the market for around 80 years, and while pump design has remained largely unaltered, sealing technology has evolved over time. This has resulted in advances in reliability, operational efficiency, and environmental sustainability.
Traditional sealing options like gland packed seals and lip seals are traditional for a reason. These products are comparatively inexpensive when taking the purchase price into account, and work well in many applications. This article will take a look at the differences between mechanical seals, gland packed seals and lip seals.
Leakage, product loss and bearing contamination that leads to premature failure are three common issues with traditional seals.
There is no reason why bearings should not last for their full predicted lifespan, which is typically calculated at roughly 15,250 operational hours. Leakage caused by inefficient sealing is the simple reason why they do not last. With research showing that water contamination of just 0.002 percent—a single drop—in a bearings chamber can reduce bearing life by almost half, it is easy to see why bearing failure is one of the most frequent causes of pump malfunction. The cost of regularly replacing damaged seals and bearings accumulates over time and can escalate if the pump shaft suffers wear damage and must be repaired or replaced.
Another key cost, which is often overlooked, is the number of hours demanded to maintain, repair and replace these components.