In this video, I explained Difference Between Pressure Relief Valve And Pressure Reducing Valve.
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Chapter : Hydraulic Pumps, Motors, Valves and Actuators
General Classification of Pump:    • General Classification of Pump  
Reasons For Not Using Reciprocating Pump In Hydraulic Systems:    • Reasons For Not Using Reciprocating P...  
Reasons for Preferring Rotary Pumps in Hydraulic Systems:    • Reasons for Preferring Rotary Pumps i...  
Comparison Between PDP And NPDP:    • Comparison Between PDP And NPDP  
Types of Gear Pump (External Gear Pump ,Internal Gear Pump, Lobe Pump, Ge -rotor Pump, Screw Pump):    • Types of Gear Pump - External Gear Pu...  
Types Of Vane Pump (Unbalanced Vane Pump Balanced Vane Pump Variable Displacement Vane Pump):    • Types Of Vane Pump  -  Unbalanced Van...  
Straight Axis Piston Pump:    • Straight Axis Piston Pump  
Bent Axis Piston Pump:    • Bent Axis Piston Pump  
Stationary Cylinder Radial Piston Pump Rotating Cylinder Radial Piston Pump:    • Stationary Cylinder Radial Piston Pum...  
Comparison between Gear Pumps, Vane Pump and Piston Pump:    • Comparison between Gear Pumps, Vane P...  
Actuators - Hydraulic Motor:    • Video  
Classification of Actuators:    • Classification of Actuators  
Rotating Cylinders Type Linear Actuators:    • Rotating Cylinders Type Linear Actuators  
Single Acting Cylinder:    • Single Acting Cylinder - Construction...  
Double Acting Cylinder - Construction - Working – Application:    • Double Acting Cylinder  - Constructio...  
Other Types of Linear Actuators - Diaphragm Cylinder - Double Rod End Cylinder - Telescopic Cylinder :    • Other Types of Linear Actuators - Dia...  
Cylinders With Cushioning:    • Cylinders With Cushioning  
Comparison Between Hydraulic Pump And Hydraulic Motor:    • Comparison Between Hydraulic Pump And...  
Limited Rotation Rotary Actuators - Vane Rotary Motor - Piston Type Rack and Pinion:
   • Limited Rotation Rotary Actuators - V...  
Rotary Actuators External Gear Motor - Internal Gear Motor-Lobe Type Motor - Generated Rotor Motor:    • Rotary Actuators   External Gear Moto...  
Rotary Actuators - Unbalanced Vane Motor - Balanced Vane Motor:    • Rotary Actuators - Unbalanced Vane Mo...  
Rotary Actuators Straight Axis Piston Motor Bent Axis Piston Motor:
   • Rotary Actuators - Straight Axis Pist...  
Rotary Actuators - Stationary Cylinder Radial Piston Motor - Rotating Cylinder Radial Piston Motor:    • Rotary Actuators - Stationary Cylinde...  
Cylinder Calculation - Hydraulic Cylinder Calculation - Pneumatic Cylinder Calculation:
   • Cylinder Calculation - Hydraulic Cyli...  
Design Of Hydraulic And Pneumatic Cylinder:    • Design Of Cylinder - Hydraulic Cylind...  
Hydrostatic Transmission System:    • Hydrostatic Transmission System  
Advantages And Disadvantages of Hydrostatic Transmission Systems:    • Advantages And Disadvantages  of Hydr...  
Configurations And Control System of Hydrostatic Transmission Systems Configurations:    • Configurations And Control System of ...  
Difference Between A Hydrostatic And Hydrodynamic System:    • Difference Between A Hydrostatic And ...  
Control Valve:    • Control Valve - Introduction of Contr...  
Classification of Control Valves:    • Classification of Control Valves  
Pressure Relief Valves:    • Pressure Relief Valves  
Pressure Reducing Valves - Pressure Regulator:    • Pressure Reducing Valves - Pressure R...  
Difference Between Pressure Relief Valve And Pressure Reducing Valve:    • Difference Between Pressure Relief Va...  




Playlist of Hydraulic Pumps, Motors, Valves and Actuators:
   • OHP: Hydraulic Pumps, Motors, Valves ...  





Chapter : Circuit Design
Playlist link of full chapter Circuit design:    • OHP: Circuit Design  


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Chapter : Oils, Fluid Properties and Filter:

Playlist of chapter Hydraulic Oils, Fluid Properties and Filter: https://www.youtube.com/watch?v=wxHT3...
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Chapter : Introduction of hydraulic and pneumatic


Playlist of Chapter In Introduction of hydraulic and pneumatic:    • OHP: Introduction of OHP