Specialty seals come in a variety of shapes and sizes. And at Real Seal, we’ve seen them all. But new customers are often conflicted about the various types of seals and their uses. The ins and outs of these different mechanical components can be difficult to learn about. Let our staff members help you out by giving you a glimpse of the top most used heavy-duty seals, and what exactly they are used for.

The Two Major Types

Essentially, there are two different types of mechanical face seals: DO and DF. What does this mean, exactly? Well, they can be broken down as follows:

Type DO Seals

Type DO seals are used as a common sealing component for any hydraulic machine and mechanics. It most often uses an O-Ring, which is why many people in the industry will refer to it that way. It is mounted and the rings care centered as they rotate.

Type DF Seals

These specialty seals are similar to a DO, but instead uses an elastomer with a cross section instead of an O-ring for the secondary sealing component. Like a DO seal, it is also mounted face to face while rotating.

Piston Seals

Piston seals are another name for these specialty seals that can provide a lot of function for a hydraulic machine. Their purpose is simple yet vital. They prevent pressurized fluid from getting past the cylinder’s piston chamber. If the machine were to suffer from an internal leak of this hydraulic fluid, it would waste a lot of energy and materials while also causing the piston to become misaligned.

The more logged with fluids a machine becomes, the more prone it is to breakage. Plus, a misaligned piston leads to slower and slower reaction speeds, rendering it unable to perform its job as intended.

Other Uses

So, what are these mechanical seals and machines actually used for? Whether it contributes to the operation of construction or agricultural machinery, there are many important uses. A few examples are listed below:

• Heavy trucks and axles
• Mining and smithing machines
• Vehicles with tracks, such as a tractor
• Farming machines
• Tunnel machines

Just about any industrial hydraulic uses mechanical seals to get through the day. To learn more about these specialty products, contact Real Seal Today!

Get the Most Trusted Seals Around

Real Seal has been in the industry for almost 50 years, providing the most trustworthy heavy-duty specialty seals available. If you are looking to learn more about the many uses of seals, or want to know how to measure seals correctly, you can contact us online for more information. Feel free to give us a call at (800) 542-6162 to speak with a representative at any time.