Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components
shuttle valve
What are Shuttle Valves ?, Construction and Operation, Graphic Symbol
Shuttle valve is also a typical directional control valve.
SHUTTLE VALVE • Shuttle valve is also a typical directional control valve. • Shuttle valves, also known as double-check valves, are used when control is required from more than one power source. • In other words, a shuttle valve allows pressure in a line to be obtained from alternative sources. • Shuttle valve is generally used to shift the fluid flow from the secondary backup pump (source), when the main pump (source) becomes inoperate. The construction and operation of a typical three-port shuttle valve is illustrated in Fig.6.15(a). This shuttle valve provides a fluid path for two alternate sources. As long as pressure in the right inlet port is greater than in the left, the shuttle piston closes the left port. When pressure at the left port becomes greater than at the right, the piston moves to the right against a stop, closing the right port and opening the left. Fig.6.15(b) shows the graphic symbol of a shuttle valve.1. What are Shuttle Valves ?
2. Construction and Operation
3. Graphic Symbol
Hydraulics and Pneumatics: Unit II: Hydraulic Actuators and Control Components : Tag: : What are Shuttle Valves ?, Construction and Operation, Graphic Symbol - shuttle valve
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Hydraulics and Pneumatics
ME3492 4th semester Mechanical Dept | 2021 Regulation | 4th Semester Mechanical Dept 2021 Regulation