Piston Seals
Products
Rod Seals
Piston Seals
Symmetric Seals
Static Seals
Rotary Seals
Wiper Seals
Backup Seals
Guide Rings
Custom Seals
Rod Buffer Seals
Double Faced Seals
Piston Seals for Hydraulic and Pneumatic Applications
Piston seals are critical components in hydraulic and pneumatic cylinders, responsible for preventing fluid or air leakage between the piston and the cylinder bore. They maintain pressure, enabling efficient power transfer and precise movement.
Types of Piston Seals
U-Cups/U-Rings
Versatile and widely used, offering good sealing performance and flexibility.
V-Rings
Multi-lipped seals designed for heavy-duty applications and high pressures.
T-Seals
T-shaped seals, often with backup rings, providing excellent stability and pressure resistance.
O-Rings
Simple and cost-effective, suitable for specific applications with lower pressure requirements.
Materials
Piston seals are manufactured from a variety of materials, each with specific properties:
Nitrile Rubber (NBR)
Cost-effective, good resistance to oils and fuels, but limited temperature range.
Polyurethane (PU)
Excellent abrasion and tear resistance, durable, and suitable for high-pressure applications.
Viton (FKM)
High-temperature resistance, excellent chemical compatibility, and suitable for harsh environments.
PTFE (Teflon)
Low friction, excellent chemical resistance, and suitable for high-speed applications.
Applications
Piston seals are essential in a wide range of hydraulic and pneumatic systems
Hydraulic Cylinders
Used in construction equipment, agricultural machinery, industrial presses, and automotive systems.
Pneumatic Cylinders
Employed in automation systems, robotics, packaging equipment, and manufacturing processes.
Actuators
For linear and rotary motion control in various industries.
Benefits of Using Effective Piston Seals
Leakage Prevention
Maintaining system pressure and preventing fluid/air loss, ensuring efficient operation.
Reduced Friction
Minimizing friction between the piston and cylinder bore for smoother movement and energy efficiency.
Extended Equipment Life
Protecting cylinder components from wear and tear, increasing the lifespan of the equipment.
Improved Performance
Ensuring reliable and precise operation of hydraulic and pneumatic systems.
Selecting the Right Piston Seal
Choosing the correct piston seal depends on several factors
Operating Pressure
The maximum pressure the seal needs to withstand.
Fluid Compatibility
The type of fluid or gas the seal will be in contact with.
Temperature Range
The range of temperatures the seal will be exposed to.
Cylinder Dimensions
The specific dimensions of the cylinder bore and piston.
Single Acting - Simple
Single-acting piston seals are designed for hydraulic cylinders where pressure is applied in one direction. These seals are simple in design, ensuring easy installation and maintenance. They offer excellent resistance to wear, extrusion, and high-pressure conditions, making them suitable for a wide range of industrial applications.
Single Acting Complex
Complex single-acting piston seals are designed for more demanding applications. These seals provide enhanced sealing performance, ensuring minimal leakage and optimal efficiency. They are capable of handling extreme conditions, including temperature variations and aggressive media, making them suitable for heavy-duty machinery.
Square Ring Activated
Square ring-activated piston seals are designed for applications requiring robust sealing performance. The square ring design ensures a tight seal, reducing leakage and improving efficiency. These seals are ideal for hydraulic systems where space is limited, and high-pressure resistance is critical.
O Ring Activated
O-ring-activated piston seals are versatile and widely used in hydraulic systems. The O-ring design provides excellent sealing capabilities, ensuring minimal leakage and optimal performance. These seals are suitable for both static and dynamic applications, offering resistance to wear, extrusion, and chemical degradation.
U Ring Activated
U-ring-activated piston seals are designed for applications requiring high flexibility and durability. The U-ring design provides excellent sealing performance, even in high-pressure and high-speed conditions. These seals are ideal for hydraulic cylinders, offering resistance to wear, extrusion, and temperature variations.
Double Acting Simple
Double-acting piston seals are designed to provide sealing in both directions, making them ideal for hydraulic cylinders where pressure is applied in both directions. These seals are simple in design, ensuring easy installation and maintenance. They offer excellent resistance to wear, extrusion, and high-pressure conditions.
Double Acting 3 Elements
Double-acting piston seals with three elements are designed for more demanding applications. These seals provide enhanced sealing performance, ensuring minimal leakage and optimal efficiency. The three-element design offers superior resistance to wear, extrusion, and high-pressure conditions.
Double Acting 4 Elements Total Guides
Double-acting piston seals with four elements and total guides are designed for applications requiring advanced sealing solutions. These seals provide superior sealing performance, ensuring minimal leakage and optimal efficiency. The total guide design offers enhanced stability and resistance to wear, extrusion, and high-pressure conditions.
Double Acting 4 Elements Short Guides
Double-acting piston seals with four elements and short guides are designed for applications where space is limited. These seals provide excellent sealing performance, ensuring minimal leakage and optimal efficiency. The short guide design offers enhanced stability and resistance to wear, extrusion, and high-pressure conditions.
Double Acting 4 Elements Long Guides
Double-acting piston seals with four elements and long guides are designed for applications requiring enhanced stability and sealing performance. These seals provide superior sealing capabilities, ensuring minimal leakage and optimal efficiency. The long guide design offers enhanced resistance to wear, extrusion, and high-pressure conditions.
Double Acting 5 Elements
Double-acting piston seals with five elements are designed for the most demanding applications. These seals provide superior sealing performance, ensuring minimal leakage and optimal efficiency. The five-element design offers enhanced resistance to wear, extrusion, and high-pressure conditions, making them suitable for heavy-duty machinery.
Double Acting 6 Elements
Double-acting piston seals with six elements are designed for extreme applications. These seals provide the highest level of sealing performance, ensuring minimal leakage and optimal efficiency. The six-element design offers superior resistance to wear, extrusion, and high-pressure conditions, making them ideal for heavy-duty machinery and industrial equipment.
Spring Activated
Spring-activated piston seals are designed for applications requiring consistent sealing performance. The spring mechanism ensures a tight seal, even under varying pressure conditions. These seals are ideal for hydraulic systems where pressure fluctuations are common, offering excellent resistance to wear, extrusion, and temperature variations.
Pneumatic
Pneumatic piston seals are specifically designed for pneumatic systems, where they provide reliable sealing in both single-acting and double-acting applications. These seals are made from materials that offer excellent resistance to wear, extrusion, and temperature variations, ensuring long-lasting performance in pneumatic cylinders and actuators.
Mining
Mining piston seals are designed to withstand the harsh conditions of mining applications. These seals are made from durable materials that offer excellent resistance to wear, extrusion, and high-pressure conditions. They are ideal for hydraulic cylinders used in mining equipment, ensuring reliable sealing performance in extreme environments.
Packs
Piston seal packs are designed for applications requiring multiple sealing elements. These packs provide enhanced sealing performance, ensuring minimal leakage and optimal efficiency. They are ideal for hydraulic systems where high-pressure resistance and durability are critical, making them suitable for heavy-duty machinery and industrial equipment.
