ptfe vs polyurethane piston seal

PTFE vs polyurethane piston seal selection depends on operating pressure, temperature range, speed, and chemical exposure. PTFE offers ultra-low friction, excellent chemical resistance, and high temperature stability, making it ideal for precision and high-performance systems. Polyurethane piston seals provide superior elasticity, wear resistance, and load-bearing capability, particularly in dynamic, high-pressure environments. Understanding the differences between PTFE vs polyurethane piston seal solutions allows OEMs and engineers to optimize performance while balancing durability and cost.

Piston Seal

The piston seal is a two-way seal, used in conjunction with two piston guide rings, and has a two-way sealing effect.

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Dustproof Seal

The dustproof seal is a single-acting seal that is installed by extruding the outer diameter. It can effectively prevent dust and dirt from entering, and allow the residual oil to flow back.

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Cylinder Static Seal

The Y-ring is designed as a static seal for the cylinder, which can replace the traditional O-ring/retaining ring combination. Through its unique design and material, the allowable extrusion gap can reach 0.4mm at a pressure of 500bar.

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Piston Rod Seal

Piston rod seal, double-lip design has better sealing effect, and polyacetal back-up ring is better under pressure.

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ptfe vs polyurethane piston seal

PTFE vs polyurethane piston seal decisions directly affect system efficiency and maintenance strategy. PTFE seals reduce friction and enable smooth motion, while polyurethane seals excel in shock resistance and long-term durability. Industrial buyers gain greater control over performance outcomes by selecting the seal type best aligned with their operating conditions and cost expectations.