Pu Foam

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A Polyurethane (PU) rod seal is a type of sealing component used in hydraulic and pneumatic systems to prevent leakage of fluid or gas. Typically, PU rod seals are used in applications where a rod, such as a piston rod or a shaft, is moving in and out of a cylinder. These seals are designed to provide a tight seal between the rod and the cylinder housing, preventing fluid from escaping and contaminants from entering.

1. Durability: Polyurethane is known for its high wear resistance and ability to withstand harsh environments, making it ideal for dynamic sealing applications.
2. Low Friction: PU rod seals offer low friction properties, which contribute to the smooth operation of the moving rod and reduce the risk of wear on the seal and surrounding components.
3. Chemical Resistance: Polyurethane can resist a wide range of chemicals, oils, and solvents, which makes it suitable for diverse industrial applications.
4. High Load Bearing Capacity: PU rod seals are capable of handling high pressures and mechanical loads, ensuring long-lasting sealing performance in demanding environments.
5. Temperature Resistance: PU materials can withstand moderate temperature ranges, which are typically required in industrial applications.

• Hydraulic Cylinders: Used to seal around the rod in hydraulic systems, preventing leaks and maintaining pressure.
• Pneumatic Cylinders: Utilized in pneumatic systems to ensure air-tight sealing around moving rods.
• Heavy Machinery: Common in construction, mining, and other industries where hydraulic systems are prevalent.
• Automotive: Used in automotive systems, such as power steering or suspension, to prevent fluid leaks.

1. Single-acting Seals: Designed to seal in one direction (e.g., when pressure is applied from one side of the piston).
2. Double-acting Seals: Used in systems where pressure may be applied from both sides of the piston or rod.

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