Why the Appropriate Seals are Important for Successful Hydraulics?

Hydraulic and pneumatic seals are crafted to protect systems that leverage reciprocating motion. Hydraulic seals, often built on composite, multi-part components with integral rings can withstand high-pressure conditions. On the other hand, pneumatic seals are designed for less pressurized conditions but are generally equally challenging, particularly in higher operating speeds.

Ultimately, deciding the correct seal, material, and durability required depends on the particular application at hand. Since each hydraulic application requires specific sealing characteristics, such as gas permeability or chemical resistance, it is essential to choose the correct hydraulic cylinder piston seals. Here are the reasons why:

Reducing Opportunities for Seal Failure

Seals that are not compatible with their surroundings can fail when put under harsh conditions. The seal must ultimately withstand the heat or chemicals used in the application and are free from contamination to prevent this.

Heat erosion occurs when, for a prolonged period, a seal is exposed to high heat. The seal may become brittle or melt when this happens, triggering a shortened lifespan. It is essential to check for cracking in high-temperature hydraulic and pneumatic seals applications regularly to increase the seal's lifetime.


Chemical erosion is similar to heat erosion in that in less durable materials, exposure to harsh chemicals over time can cause degradation. It may not be compatible with the chemicals used when the wrong material is selected. This can lead to a chemical assault by oil additives on the seal, hydrolysis or seal element oxidation-reduction.

Contamination by soil and debris may have a significant effect on the functionality of seals. In hydraulic pumps, engines and cylinders, contamination can lead to internal leakage and decreased performance. Inside the system, valves may also lose the ability to control flow and pressure.

Reduce Hydraulic Pressure Effects

Seals that are designed to mitigate the effects of hydraulic pressure in the enclosed compartment are balanced seals. Hydraulic seals go far beyond fluid leakage prevention. For your application, other polymer materials are mentioned. For simple linear operations in which the cross-section of the seal is symmetrical, the symmetric seal is used, and this makes it an interchangeable choice for rod and piston seals. However, you can get correct hydraulic seals and supplies from manufacturers to reduce the pressure effects

Pneumatic systems are usually used in factories focusing on compressed air and inert gases. In contrast, hydraulic systems can be used in manufacturing processes and advanced steel and paper mills applications. You must determine the nature of the task, the force necessary to accomplish it, the amount of versatility needed, and many others when deciding whether to use a hydraulic system or a pneumatic system. Your company's needs are entirely different from those of others.

While selecting the best fitting hydraulic cylinder piston seals, there are several determining factors to consider. Many applications need particular seal characteristics that suit the application's description, such as the fluid pressure range, the application temperature range, the type of fluid being used, the hydraulic machine dimensions, and the size you need.


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