You can easily control the flow of electricity with a small switch, but not with gas or water. A valve is needed to control the movement of substances such as water and gas. In this article, it is explained how to select the right valve and the type of valve.
What is the valve?
Just as electricity travels through wires, gases and liquids flow through pipes. The valve that controls the flow of this pipe is called a valve and acts as a switch in the pipe. There are various types of valves depending on the purpose and application, and it is necessary to use them properly as needed.
Types of valves and how to choose
There are many types of valves, depending on the control method.
Select by valve type
Generally, valves are classified according to the mechanism, such as how to control the substance (fluid) in the pipe.
Ball valve
A ball with a hole is directly connected to handle of the valve, and the ball inside is rotated by turning the valve. The fluid passes when the perforated surface faces the pipe and is blocked when laid sideways.
Gate valve
Control the fluid by sliding vertically to the pipe. It is not suitable for flow rate control and is used for two options of flow and shutoff.
Butterfly valve
The fluid is controlled by rotating the valve inside the valve like a ball valve. The difference is in the shape of the valve. The butterfly valve does not have holes. It regulates the flow rate by adjusting the open gap between the valve and the pipe.
Needle valve
By turning the valve handle, the valve moves up and down vertically to control the fluid. The shutoff method is the same as the gate valve, but the Stainless Steel Needle Valve can control the flow rate.
Check valve (check valve)
It is a 304 Stainless Steel Tube valve to prevent backflow. Like the valve in a human blood vessel, it opens in one direction but not in the opposite direction. It is used for one-way piping.
Diaphragm valve
The fluid is controlled by actuating a valve called a diaphragm. Diaphragm means a diaphragm and is made of fluororesin or rubber. It can be used with delicate fluids that are extremely airtight.
Solenoid valve/motorized valve
It moves the valve by the force of an electromagnet and features a very fast response speed. On the other hand, it is not very suitable for water volume control. It is a valve that is often used with two options of flowing and stopping.
Select by fluid
A valve is an item that controls the movement of substances in piping. The liquid/gas that passes through the pipe is called a fluid, and it is necessary to select a valve depending on the fluid.
Liquid
This valve is used for hot water and water pipes through which water flows. Gate valves and butterfly valves are often used, and those that can adjust the flow rate are suitable.
Gas
A butterfly 316 Stainless Steel Tube valve or globe valve, which is a highly versatile valve for controlling gas and air, is suitable.
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