Piston seal

What is a Piston Seal?

Piston seals are mainly used in hydraulic cylinders to seal pressurized fluids between the piston and the bore. They enable radial compression thanks to an asymmetrical lip. Their role is to keep fluids in the chamber so as not to reduce the pump's volumetric efficiency. This ensures optimum performance and maximum system reliability. These seals are mainly available in nitrile (NBR) or polyurethane (PU). They can be used for hydraulic or pneumatic applications.

How do I measure a piston seal?

To identify the piston head gasket you need for your assembly, you'll need to take these 3 dimensions:

• The inside diameter of your seal corresponds to the outside diameter of your rod.

• The outside diameter of your seal, corresponding to the inside diameter of your barrel.

• The thickness of your gasket corresponding to the thickness/space available at the bottom of the groove

These measurements are crucial in determining which gasket is right for your needs, especially if the system has to withstand high speeds or pressure. A poor fit can compromise system efficiency and lead to leakage.

What are the roles of the different types of piston seals?

In industry, piston seals are used in a wide variety of applications, including hydraulic cylinders, pneumatic systems and agricultural equipment. Piston seals can be classified into different categories according to their design and application. Depending on the application, there are different types of piston seals with specific gaskets, to better manage tightening and limit wear. For example, a single-acting piston seal may be a U-shaped seal with an asymmetrical lip. For example, some seals are fitted with a protective ring to enhance their durability.

An important point to consider when choosing a seal is the temperature at which the system will operate. Some seals, such as those made from PTFE, are ideal for extreme temperature applications, while other materials such as nitrile (NBR) are better suited to moderate temperatures.

Why are piston seals essential in industrial systems?

Piston seals are not simply design elements; they are crucial to the proper functioning of the entire hydraulic or pneumatic system. The absence of adequate seals, or a poorly chosen seal, can have a negative effect on overall performance. A leak can lead to a loss of pressure, reducing system efficiency. Against this background, companies need to pay particular attention to selecting the right seals for their specific technical requirements.

To meet performance and safety requirements, it is advisable to request a quotation from specialist manufacturers to obtain detailed information on the different materials available, as well as the relevant technical data. In addition, purchasing sets containing seals of different sizes can facilitate rapid and efficient replacement when required, thus ensuring continuity in machine operation.

Maintenance and replacement of piston seals

Regular maintenance of piston seals is essential to ensure long service life and optimum equipment operation. By monitoring seal wear and replacing them when necessary, you can avoid unexpected breakdowns and costly repairs. Maintenance can include cleaning seals, replacing worn sealing rings and checking that components are properly tightened.

It is also advisable to follow the maintenance policies suggested by the system manufacturer to ensure optimum use of piston seals.

Find your piston seals at 123Bearing

Are you looking for a piston seal capable of guaranteeing a perfect seal and withstanding high temperatures? At 123Roulement, we offer you a wide choice of seals in PTFE, rubber and other materials adapted to the requirements of your industry. These components are designed to minimize leakage and optimize the sealingeffect in hydraulic and pneumatic systems.

Our gaskets are available in a range of sizes, and come with clamping rings to ensure efficient, long-lasting installation. We also offer boxes with a wide range of contents, ideal for professionals needing a complete assortment of gaskets.

Need more information on a product? Consult our detailed technical data or request a personalized quotation. Our policy is focused on customer satisfaction, with immediate stock availability and fast delivery. Order your piston seal from 123Roulement now, and benefit from reliable, high-performance service.