The words gasket and seal are used interchangeably by most people. While this might be okay when you are having regular conversations, it is something to avoid when ordering for either of these items. The Teflex expanded PTFE sealing and gasket might perform somewhat similar actions, but there is a huge difference between the two of them. Here are all you need to know about a gasket and a sealant.
What is a gasket?
A gasket is used to seal the connection between two flat surfaces. They are mostly used in areas where there is no movement and are known as static sealants. You can get a gasket made out of PTFE, treated fiber, cork, or rubber. Your choice of material will depend on your company and what it does. You should pick material that does not react with the products going through your pipes.
What is a seal?
Seals are used between engine parts and anything else that rotates like pumps and shafts. It is mostly molded to fit in rotating parts and ensure there is no leakage. Most seals are made of rubber and have an outer metal ring to ensure it stays intact. The inner lip is flexible to ensure it goes on the groves.
Difference between sea and gasket
While seal and gasket are used to serve the same purpose, there are differences between these two pieces. Here are the main differences between a seal and a gasket.
1. Area of use and installation
While a gasket works on static parts of machinery, a seal is meant for places that move around. Gasket often comes in flat shapes, while the seal comes in the shape of the area that it is meant to fit into. Installing a gasket is considered simple, but if you are not keen, you might have the seal put wrongly, which can cause leaks. One has to know what they are doing when it comes to matters seals. You will often need a lubricant to seal, then use a harmer to ensure it stays intact.
2. Repair and replacement
Another main difference between the seal and the gasket is the replacement. Like every other part of the machine, they need to be replaced every so often to ensure that the machine keeps working. While with a gasket, all you have to do is take it out and put in another. The seal is more costly to replace. The nature of its installation means that you can only replace it when it is broken. The reason for this is, the sealant cannot be removed from the hinge. It, therefore, makes the replacement of the seal costly.
Last thoughts
All companies need a sealant for their hinges and in areas where two pipes meet. For this reason, you cannot say you will do without either. It is therefore important to do your research on the seals in the market and how they work. It will help you make better and informed choices based on the needs you have.
