Question
Download Solution PDFWhat is the purpose of a non-return valve in a water pipe line?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Valves:
- A valve is a device, which controls and regulates the start, finish, direction, and pressure of the flow of air.
- There are five types of valves used in pneumatics and hydraulics
- Valves are divided into 5 groups according to their function:
|
Directional Valves (Way Valves) |
It influences the path, taken by the air stream. It controls the start, stop and direction of the flow of air. |
|
Non – Return Valve |
It stops the flow in one direction and permit flow in the opposite direction. |
|
Pressure control Valve |
It is used in hydraulic systems to control actuator force (force = pressure × area) and to determine and select pressure levels at which certain machine operations must occur |
|
Flow control Valve |
It is used to regulate the flow rate and pressure of liquids or gases through a pipeline. |
|
Shut-off Valve |
It is designed for and capable of positive closure to prevent flow within a piping system. |
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