Hydraulic Power Pack | How Oil Move Step by Step | Hydraulic Explained in Hindi

Here is a list of main hydraulic components used in a hydraulic circuit, along with their functions, commonly found in industrial systems like steel plants, construction machines, and manufacturing equipment: --- 🔧 1. Hydraulic Pump Function: Converts mechanical energy into hydraulic energy (fluid flow). Types: Gear pump, vane pump, piston pump. Importance: Creates the flow of oil in the system. --- 🎛️ 2. Directional Control Valve (DCV) Function: Directs fluid to specific actuators (like cylinders or motors). Types: 2/2, 3/2, 4/3, solenoid-operated, manually operated. Importance: Controls the path of oil flow. --- 📏 3. Pressure Relief Valve (PRV) Function: Limits the maximum system pressure to protect components. Working: Opens when pressure exceeds the set value, allowing oil to bypass to the tank. --- 🧲 4. Pressure Control Valves Function: Controls system pressure in various ways. Types: Pressure relief valve Pressure reducing valve Sequence valve Counterbalance valve Unloading valve --- 🔄 5. Flow Control Valve Function: Regulates the speed of actuators by controlling oil flow. Types: Fixed Adjustable Pressure compensated --- 🧭 6. Hydraulic Actuators (Cylinders & Motors) Function: Converts hydraulic energy into mechanical energy. Types: Cylinders (Linear motion) Motors (Rotary motion) --- 🧰 7. Hydraulic Reservoir (Tank) Function: Stores hydraulic fluid, dissipates heat, and allows air separation. Importance: Must be properly sized to ensure fluid circulation and cooling. --- 🌡️ 8. Heat Exchanger / Cooler Function: Removes excess heat from hydraulic fluid. Types: Air-cooled or water-cooled. --- 🧼 9. Hydraulic Filters Function: Removes contaminants from the oil to protect system components. Locations: Suction line, return line, pressure line, or off-line filtration. --- 🔁 10. Accumulator Function: Stores energy in the form of pressurized fluid. Uses: Shock absorption, energy storage, leakage compensation. --- 🔂 11. Check Valve Function: Allows flow in one direction only and blocks reverse flow. Application: Used for safety, actuator holding, and directional control support. --- 🔄 12. Pilot-Operated Valves Function: Operated using a pilot pressure to control larger flows or remote control. Examples: Pilot-operated check valve, pressure relief valve. --- 📉 13. Pressure Gauges and Sensors Function: Monitors system pressure and provides feedback for safety and control. --- 🛢️ 14. Hoses, Pipes, and Fittings Function: Carries hydraulic fluid between components under high pressure. Materials: Steel tubes, rubber hoses, seamless pipes. --- 🧃 15. Seals and O-rings Function: Prevent fluid leakage and contamination. Material: Nitrile, Viton, PTFE, etc.