## What are the functions of various water valves?
1. **What is the function of a ball valve?**.
A ball valve is used to control the flow of water by rotating a ball with a hole through it. When the hole is aligned with the flow, water can pass through. When the ball is rotated 90 degrees, the hole is perpendicular to the flow, blocking it.
2. **What is the function of a gate valve?**.
A gate valve is typically used to fully open or fully close the flow of water. It consists of a gate or wedge that can be raised or lowered to control the flow.
3. **What is the function of a globe valve?**.
A globe valve is designed to regulate the flow of water by moving a disc against the flow. This disc can be raised or lowered to control the amount of water passing through the valve.
4. **What is the function of a check valve?**.
A check valve allows water to flow in one direction only, preventing backflow. It has a flap or disc that opens when water flows in the correct direction and closes when there is backflow.
5. **What is the function of a pressure relief valve?**.
A pressure relief valve is used to release excess pressure in a water system to prevent damage. When the pressure reaches a certain level, the valve opens to relieve the pressure.
6. **What is the function of a solenoid valve?**.
A solenoid valve is an electromechanically operated valve that is used to control the flow of water remotely. It opens or closes when an electrical current is applied to the solenoid.
By understanding the functions of these various water valves, you can effectively control the flow and pressure of water in different plumbing systems.
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