Hydraulic Actuators and Control Components - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
Flow control valves, also known as volume-control valves, are used to regulate the rate of fluid flow to different parts of a hydraulic system.
Hydraulic Actuators and Control Components - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The sequence valves are used to control the fluid flow to ensure several operations in a particular order of priority in the system.
Hydraulic Actuators and Control Components - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The pilot operated pressure reducing valves are built and operate on principles similar to the compound relief valves, described earlier in Section 6.15.
Construction and Operation, Graphic Symbol
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The construction and operation of a direct-acting pressure reducing valve is illustrated in Fig.6.18(a). It has a spring loaded spool to control the downstream (outlet) pressure.
What is a Pressure Reducing Valve ?
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
As the name suggests, a pressure reducing valve is used to supply a prescribed reduced outlet pressure in a circuit and to maintain it at a constant value.
Introduction, Construction and Operation
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The compound pressure relief valve overcomes the problem of direct-acting pressure relief valve.
Hydraulic Actuators and Control Components - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The construction and operation of a simple poppet (ball)-type direct-acting pressure valve is illustrated in Fig.6.16(a).
Hydraulic Actuators and Control Components - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The pressure-limiting valve, also known as the relief valve, is the protector of the hydraulic circuit.
Hydraulic Actuators and Control Components - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
As the name suggests, pressure control valves are the devices used to control the fluid pressure in a system.
What are Shuttle Valves ?, Construction and Operation, Graphic Symbol
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
Shuttle valve is also a typical directional control valve.
Hydraulic Actuators and Control Components - Hydraulic Actuators and Control Components
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The 4/3 valves have 4 ports and 3 distinct positions.
Hydraulic Actuators and Control Components - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
The poppet-type check valve illustrated in Fig.6.10 is a typical 2/2 valve. However, the construction and operation of a similar type 2/2 DC valve is illustrated in Fig.6.1.