Hydraulic Seals
What Are Hydraulic Seals?
Hydraulic seals are specialized rings or components used in hydraulic cylinders and systems to prevent fluid leakage, maintain pressure, and exclude contaminants. They are essential for the proper functioning of any hydraulic machinery, ensuring efficient and reliable power transmission using pressurized fluid.
🔧 Key Characteristics of Hydraulic Seals:
Seal Fluids: Typically hydraulic oils or water-based fluids
Withstand High Pressure: Often used in systems operating under hundreds or thousands of psi
Support Movement: Designed for both static (non-moving) and dynamic (moving) applications
Material Variety: Common materials include nitrile rubber (NBR), polyurethane (PU), Viton (FKM), and PTFE (Teflon)
🧩 Where Are They Used?
Hydraulic seals are used in components like:
Hydraulic cylinders (in pistons and rods)
Pumps and motors
Hydraulic valves
Actuators and accumulators
🚀 Purpose of Hydraulic Seals:
Prevent Fluid Leaks: Keep hydraulic fluid sealed within the system.
Maintain System Pressure: Allow force transmission by preventing pressure loss.
Block Contaminants: Stop dirt, water, and other contaminants from entering.
Extend Equipment Life: Reduce wear and tear on components by maintaining lubrication and cleanliness.