Accessories

Hydraulic systems consist of various components used to transmit power and motion through pressurized fluid (usually oil). Hydraulic accessories play a vital role in the proper functioning of these systems. Below are some of the most important hydraulic accessories and their descriptions:

Hydraulic Pump

• Function: Converts mechanical energy into hydraulic energy by creating a flow of pressurized fluid.
• Types:
• Gear Pump
• Piston Pump
• Vane Pump

Hydraulic Motor

• Function: Converts hydraulic energy into rotational motion.
• Types: Gear motor, piston motor, vane motor.

Control Valves

• Function: Controls the direction, pressure, and flow rate of the fluid.
• Main Types:
• Directional Control Valve: Determines the flow path.
• Pressure Relief Valve: Limits system pressure.
• Flow Control Valve: Regulates the speed of cylinders or motors.

Hydraulic Cylinder

• Function: Converts hydraulic energy into linear motion (push or pull).
• Applications: Cranes, excavators, industrial presses.

Hydraulic Reservoir

• Function: Stores hydraulic fluid, cools the oil, and separates air and contaminants.

Filters

• Function: Removes contaminants from the oil to prevent damage to components.
• Installation: On the pump inlet or return line.

Pipes and Hoses

• Function: Transfers fluid between components.
• Material: Stainless steel, high-pressure plastic, or reinforced rubber.

Fittings

• Function: Provides secure connections for pipes, hoses, and other components.
• Types: Quick couplings, threaded fittings, flanges.

Seals

• Function: Prevents oil leakage and maintains system pressure.
• Types: O-ring, gasket, wiper seal.

Accumulator

• Function: Stores hydraulic energy and reduces pressure fluctuations.
• Applications: Shock absorption, emergency pressure supply.

Pressure Gauges and Sensors

• Function: Displays pressure, temperature, and other system parameters.

Coolers and Heaters

• Function: Regulates fluid temperature to prevent overheating or freezing.

Key Maintenance Tips

• Use hydraulic oil with the appropriate grade.
• Replace filters and seals on time.
• Regularly inspect hoses and fittings to prevent leaks.
• Prevent fluid contamination (Contamination Control).

Common Applications of Hydraulic Systems

• Industrial machinery (presses, plastic injection machines).
• Construction equipment (excavators, loaders).
• Aircraft and hydraulic steering systems.

By selecting high-quality components and performing regular maintenance, the lifespan of hydraulic systems can be significantly extended.