Split Seal or Cartridge Seal? Which One is Right for Your Application?

Both split and cartridge seals are effective fluid sealing options when used in the right application. However, they are different types of mechanical seals, each made for specific scenarios. This article compares the differences between split and cartridge seals and examines the most common applications for each.

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Split seals are quick and easy to install, and they are best used for a pump or equipment that can’t be taken offline—either because it is too large or because there isn’t enough room to take it apart (ie. equipment on a ship or barge). The advantage of split seals is that installation requires minimal downtime. One of the disadvantages is that split seals also tend to leak more so they cannot be used for applications where there is anything corrosive, toxic, or flammable. These types of seals are perfect for vertical turbine pumps and for the sealing of water.

A cartridge seal is a solid seal that has more broad-spectrum application, as it can go almost anywhere. Installing this type of seal requires a complete breakdown of the equipment so there is more downtime upfront to consider. These types of seals are perfect for centrifugal pumps and often make the best long-term solution as they don’t leak as easily as split seals.

“Choosing the best seal for a specific application doesn’t have to be a short-sighted decision. In some cases, end users choose a split seal to save on installation costs and time spent, even though their application requires a cartridge seal,” explains SEPCO Business Development Manager Cody Kaufmann. “We prefer to work closely with our customers to help them make informed decisions. For example, while a split seal does save time up front, there are many other factors to consider beyond time savings. No matter the application, we want the seal to solve the specific problem, and our experience determining that can make all the difference in the long run.

“At SEPCO, we want to provide you with the best long-term sealing solution versus putting a band aid on the problem. We make sure you get the right mechanical seal for your application the first time. This is what really saves you time and money.”

SEPCO understands the important role that fluid sealing products play in maintaining the integrity and efficiency of your equipment. Whether the application requires a split or cartridge seal, SEPCO products provide reliable protection against fluid leaks, contamination, and wear, extending the life your equipment and ensuring smooth day-to-day operation. Each seal is manufactured to the highest standards, using only the finest materials and state-of-the-art technology for maximum safety.

The team at SEPCO will help to access your equipment needs and find the best long-term solution for your application to keep production running with the least amount of downtime, and that equals topline savings for your business. SEPCO offers supplier solutions for product design, recommendations, installation, and troubleshooting for mechanical seals. And an unparalleled commitment to customer service is what sets SEPCO apart from the competition.

Mechanical seals have several configurations. Each one has different advantages and disadvantages.

It is a device that contains fluid in the vessel where a rotating shaft passes through the housing. The housing is stationary, or it rotates around a shaft.

The vessel can be a pump, mixer, or agitator. What is the purpose of using a mechanical seal? It allows the shaft to rotate without allowing a large amount of fluid to escape freely.

What is a split mechanical seal?

It is called a split seal because the seal comes in two separate pieces. These pieces can be installed or removed from around the shaft.

In the split seal, every component is literally cut into half and then assembled on the pump without the need to remove the bearings or motor.

You need not disassemble the equipment. When you join the two faces, it is essential to mate the sealing elements so that proper sealing establishes around the shaft.

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Use of the split mechanical seal

When do you use a split mechanical seal?  It is widely used in equipment with large sized shafts, double-suction pumps, vertical shaft pumps, and side-entry mixers and agitators.

If there is a common component seal, then you need to remove end bearings, the motor coupling and motor to replace the same. It needs more effort, more time, and more money.

A split mechanical seal is free from all such hassles.  Seal replacement is a matter of a few minutes in this case.

Benefits of split seals

When split seals are installed, the applications get several benefits. The installation time required is less. The sleeve wear also reduces. The reliability goes up.

You save money on installation and maintenance activities.

Though the initial cost for installing a split mechanical seal is high, it gets compensated due to its operational benefits in the long run.

The savings are far higher than the expenses. Hence, it is an economically feasible and suitable option. You need less labor, and the downtime also drops significantly.

The benefits of split mechanical seals make them popular as compared to other seals. However, there is a word of caution. Split seals are not recommended for applications where leakage or emission is a threat to the people working in the company.

Hence, it is very much important to asses the requirement first. Split seals are the problem solvers in all aspects. Install them to reap the best benefits.

Leak-Pack is ISO : certified company and leading mechanical seals manufacturer & supplier in India, providing solutions to all types of leakages by manufacturing Mechanical Seals and Sealing Components as per customer’s drawings, samples or requirements. To know more about Mechanical Seal call on +91-()  or at .

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