Breaking it Down: The Benefits of Split Pump Seals in Mechanical Systems

Let’s learn about split pump seals, a phenomenal and innovative solution that is changing the game in industrial applications. This blog post breaks down complicated concepts into digestible nuggets, making mechanical wonders easier to understand for you. We will be unwrapping the secrets behind split pump seals. Are you ready to join this informative journey? Happy reading!

What is a Split Pump Seal?

Before we dive into the benefits, let us start with the basics: the definition of a split seal.

​A split pump seal has parts split into two halves, secured as one unit on the seal shaft. The significant advantage of the split pump seal design is that it allows you to install the seal without dismantling the pump or equipment, saving you more time.

In split mechanical seals, all the components are split into at least two halves. Like traditional non-split mechanical seals, split mechanical seals can be used on rotating equipment, such as pumps and mixers. Like other mechanical seals, split mechanical seals close the rotating shaft and the equipment housing. It has a split design, so the seals can be installed around the shaft instead of being slid onto it during equipment assembly.

What are the Benefits of a Split Pump Seal?

In general, sealing device maintenance on extensively rotating equipment can be a time-consuming and costly activity. As business owners, maintainers, and operators, users want to use split pump seals that enable their staff to spend less time maintaining equipment and sealing devices. Significantly split pump seals help lessen operating expenses, increase equipment availability, and maximize productivity in their work. 

Performs Better Than Most Sealing Pump Designs

With the latest release of split mechanical seals, it performs better than cartridge-type mechanical seals. The newest split mechanical seals are self-aligned and installed by fastening subassembly halves around the shaft and bolting it to the equipment. The necessity for measurements and accurate setting of the split components happens automatically within these modern designs instead of manually done by the installer.

Prevents Pump Leakage

For pump equipment, leakage is primarily a concern for business owners and their operators, making them consider split pump seals. Split pump seals are known to operate leak-free for more than ten years. 

Note: However, it should be properly installed and applied. As split mechanical seals are split in half, when not correctly installed, it generates many leak paths within the seal that are closed by static secondary sealing elements. Considering this scenario, there is a greater risk of static joint leakage.

Does Not Require Equipment Disassembly

The single most significant benefit of using split pump seals is that there is no need for equipment disassembly. Split pump seal’s design eliminates the need to remove anything from the pump except the seal.

Reduces Downtime

Split pump seals are designed to last longer compared to traditional packing seals. In return, equipment downtime is reduced, as there is less need for maintenance and replacement.

Saves More Money

As split mechanical seals can be installed without removing the motor, pump, or coupling, they simplify the installation process and eliminate the associated expenses with the usual solid seal replacement or replacement of a worn packing sleeve. The benefit increases as the size of the equipment enlarges. However, there may not be a recognizable benefit to using split mechanical seals on small pumps; the fewer expenses start to add up with increasing shaft sizes.

Additional Cost Savings for Businesses

A positive Return On Investment or ROI usually starts with shaft sizes greater than 2.5 inches (65 mm) for single-stage centrifugal pumps. However, on specialty equipment, which is difficult to disassemble, especially double-ended pumps, the ROI starts at even smaller shaft sizes. Business owners and users can save additional costs by installing split seals on rotating equipment if packed.

Eliminates Extra Expenses

Installing split mechanical seals eliminates sleeve wear and maintenance interventions that cost you a lot. It can eliminate the need for packing adjustments, packing gland leakage, and associated cleaning costs.

Most split mechanical seals are designed to secure the outside of the stuffing box. For the packing user looking to convert, switching to split seals without requiring the replacement of the packing sleeve is possible.

Adapts to Most Types of Equipment

One of the best advantages of split pump seals is their ability to adapt. They can adjust to shaft sizes and fit in various equipment types, making them adaptable for different industries. Split seals are also suitable for use with pumps that experience vibration or have misaligned shafts, providing a more stable sealing solution.

Can Be Used for Various Industries

Split seals are mainly used for giant pumps that pump water-based fluids. It is tried and tested in various industries, including power generation, chemical and water processing, pulp and paper, desalination, and more.