Piston Rod Sealing Rings
Types of hydraulic piston rod seals
Available in many formats for hydraulic systems:
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Piston rod lip seals
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Compact self-sealing rings
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Rod seal close to support ring
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Pneumatic piston rod lip
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PTFE O-Rings
Materials used in hydraulic seals
Material choice is essential for hydraulic fluid compatibility, temperature and moisture resilience:
NBR (nitrile rubber)
Oil-resistant seals, flexible and automotive-grade.
Viton / FPM / FKM
Fluoroelastomer offering high-temperature and UV/ozone resistance, resistant to aromatic hydrocarbons.
EPDM
General-purpose rubber, resistant to weather, UV, ozone and moderate heat.
Ecopur (TPU)
High-performance TPU seals, with exceptional abrasion resistance and low compression set.
Ecopur H
Hydrolysis-resistant up to +95 °C – perfect for moist hydraulic environments.
Ecopur T
Cold-resistant variant – ideal for low-temperature applications.
Ecopur G
Combines hydrolysis and hydraulic fluid resistance – great for industrial hydraulic systems.
Ecosil (MVQ)
Excellent heat and ozone resistance in silicone O‑rings.
PTFE (Teflon)
Non-stick and contamination-resistant, ideal for clean environments.
Choosing the right seal
Selecting the correct material ensures that hydraulic sealing rings perform reliably in demanding applications.