Friday, September 1, 2017

Some Tips To Consider When Buying A Rotary Shaft Seal

By Betty Edwards


At home, or even in industries, individual machines require lubrication to operate their best. Lubrication is done through a rotating shaft whose end is closed has a Rotary Shaft Seal. These are low pressure seals that had been designed to fit between a rotating shaft and the body for better pumping while preventing the loss of the lubricating fluid.

There are various profiles of the product in the market and many at times, consumers are challenged while deliberating on the best seal that will ultimately solve their needs. One design common to many individuals is the TC design. Most pump seals are designed with a pre-energized lip and a secondary lip without a spring, though the secondary lip may miss in some products.

There is more. Mechanical pump seals can also be classified depending on their application. For instance, there are some used in the automotive industry, and it is not uncommon to see a bearing seal in a trailer. Others are specifically modeled to endure high temperatures and pressure. Depending on the rotation of the shaft, some profiles are regarded as directional, bi-directional and non-directional. Other manufacturers fit an enclosed rubber component, either reinforced or non-reinforced.

In all the types and profiles that they come in, they all have one application in common; pumping lubricating fluid. The seal has two main components. They include, a rotating shaft and the other is a pump housing. If the seal were not there, the lubricating fluid would leak, and that leads to additional, unnecessary costs. It is this seal that has led people t conjure all sorts of names for it, including pump seal and water pump.

In technical terms, the seal is referred to as the end-face mechanical seal and was initially utilized during the early years of the twentieth century. Nonetheless, their prominence started becoming rampant after the WWII, specifically during the nineteen forties. As time elapsed, their utility became a household norm as well as in industries. Other internal components that make the product so unique are the gland plate, clamp ring, and the spring.

Prior to its discovery, people highly relied on gland packing, while others made use of mechanical packings. Principally, their design was top notch but has one major shortcoming. They hardly regulated leakages to the required extent, and that led to unpopularity. The shaft seal used today is efficient in controlling leakages, preventing corrosion, and that enhances their performance and durability.

To purchase the right equipment, there are a few factors that you need to put at the edge of your mind. One aspect you need to consider is the dimension of the product. Therefore, research to determine the stationary components of the pump seal, its size, the working length and the bore dimension.

One more thing that you need to consider is the sort of fluid medium that you will be using it on. And while the popular ones are used on oil, other are used on water or a semi-solid lubricant. Therefore, before setting out on the quest for these products, ask yourself the type of medium you will use it for.




About the Author:



No comments:

Post a Comment