Difference Between A Buffer Seal And A Rod Seal
Rod Seal: This seal is positioned on the rod or shaft of a hydraulic or pneumatic cylinder. Its primary function is to prevent the leakage of fluid from the cylinder to the outside environment. Rod seals are critical for maintaining the integrity and efficiency of the system by preventing contaminants from entering and fluid from escaping. They also help to maintain pressure within the cylinder.
Buffer Seal: A buffer seal is usually located inside the cylinder, and it serves to separate different media within the cylinder. It acts as a barrier between the primary sealing element (such as the rod seal) and the secondary sealing element (such as the piston seal). Buffer seals are often used to protect primary seals from pressure spikes, excessive wear, or damage caused by the movement of the piston.
In a word, while both seals are important for the functioning of hydraulic and pneumatic systems, rod seals primarily prevent fluid leakage from the cylinder, while buffer seals provide additional protection to primary seals and help optimize their performance.
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