Piston seals: page 122
Piston seals play a vital role in any hydraulic system. They maintain pressure inside the cylinder, prevent oil leaks and enable the equipment to function. Poor-quality seals accelerate the loss of efficiency in hydraulic cylinders, resulting in higher maintenance costs. In our online catalogue, we offer polyurethane and rubber piston seals for various pressures, temperatures and environmental conditions.
The role of piston seals in hydraulic systems
The function of piston seals in hydraulic systems
The main function of piston seals A piston seal is designed to seal the gap between the piston and the inner wall of the cylinder. If the seal fails to fulfil its role, pressure will not be maintained and the cylinder will be unable to function properly.
Sealing the pressure chamber
In a hydraulic cylinder, the fluid exerts pressure on the piston in both directions. The piston seal must withstand such high pressures and also ensure the working chamber remains sealed. Depending on the type of fluid, the operating temperature and the required pressure, materials such as NBR rubber, polyurethane or PTFE are selected.
Maintaining the efficiency of the hydraulic cylinder
If the seal is worn or unsuitable, you may notice a drop in performance: the cylinder moves more slowly, the force is reduced, or oil starts to leak. Replacing the piston seals in good time will not only extend the cylinder’s service life, but will also reduce hydraulic fluid consumption and minimise damage to other system components that could be caused by seal wear.
Where piston seals are used
They are commonly used in the hydraulic cylinders of a wide range of industrial and mobile equipment, including, but not limited to, construction machinery, agricultural machinery, general engineering machinery, forestry machinery, and both stationary and mobile hydraulic systems. More detailed information can be found in our product group under the heading ‘hydraulic seals’.
Selecting the right piston seal
To make the right choice, consider the piston diameter, working pressure, fluid temperature and type of hydraulic fluid. We also invite you to explore the hydraulic sleeves, scrapers and rod seals available in our online shop.
The benefits of buying piston seals from the Hydraulic Seals Shop
The Hydraulic Seals Shop stocks piston seals at very competitive prices and offers fast delivery anywhere in Romania. In our online catalogue, you’ll find both standard and special profiles in various sizes and materials. Order high-quality hydraulic seals at great prices, with delivery straight to your door.
Frequently Asked Questions
What are piston seals?
Dynamic seals are fitted into the grooves of pistons. They prevent hydraulic fluid from passing from one chamber to another and help maintain the pressure required for the equipment to function correctly.
What are the criteria for choosing the right piston seals?
Select the seal based on the piston diameter, working pressure, fluid temperature and the material’s compatibility with hydraulic oil. If you have any difficulties, please contact us for assistance in selecting the correct product.
How does pressure affect the seal?
High pressure places greater demands on the seal material. For high pressures, polyurethane seals are recommended as they offer better resistance to extrusion. If the pressure exceeds the material’s limit, the seal will deform and will no longer function as a seal.
How much do piston seals cost?
It depends on the size, material and profile type. We offer reasonable prices for piston seals in our online shop, and you can place your order directly from the catalogue for the exact quantity you require.