puikkotiivisteet

Puikkotiivisteet, also known as rod seals or rod packing, are sealing elements used in hydraulic and pneumatic cylinders to prevent leakage of fluid past the piston rod. They are typically made of elastomeric materials like rubber or polyurethane, or sometimes from thermoplastic materials like PTFE. The primary function of a puikkotiiviste is to create a barrier between the moving rod and the stationary cylinder bore, thus maintaining system pressure and preventing external contamination.

There are several types of puikkotiivisteet, each designed for specific applications and operating conditions. Common designs include U-cups, O-rings, V-rings, and lip seals. U-cups and lip seals are often used as primary seals, providing a tight seal against leakage. O-rings can be used as static seals or in some dynamic applications. V-rings are typically used in sets and provide a robust sealing capability, especially in high-pressure applications.

The selection of a puikkotiiviste depends on factors such as operating pressure, temperature, fluid compatibility, rod speed, and the presence of contaminants. Proper installation is crucial for the effective performance and longevity of the seal. A damaged or improperly installed puikkotiiviste can lead to premature seal failure, system inefficiency, and potential damage to other cylinder components. Regular inspection and maintenance of these seals are recommended to ensure optimal performance of hydraulic and pneumatic systems.