Tips Sahabat

Know the Function of the Needle Valve in the Carburetor Component

10 April 2025
Ketahui Fungsi Needle Valve pada Komponen Karburator

The Needle Valve is a component of the carburetor that plays an important role. So what is the function of this component? For more details, please pay attention to the following review.

Function of the Needle Valve

There are several functions of the needle valve in the carburetor that you need to know. Here are the complete functions.

1. Fuel controller in the carburetor

The main function of the needle valve is to control how much fuel in the float system will be delivered to the carburetor. This component is often referred to as the gate or entrance for fuel before it goes to the reservoir. This component will rise or fall according to the float. 

2. Facilitates the throttling process

The throttling body in cars with carburetor engines can increase the speed of the car, thus enhancing the car's performance. In order for the throttling process to run smoothly and accurately, the needle valve is needed. As is known, the needle valve can be used at relatively high temperatures and pressures.

Other Valve Components in Car Carburetors

In addition to the needle valve, there are several other valves that play an important role in the performance of car carburetors. Here are the complete valves.

1. Gate valve

This valve functions as an opener and closer of the flow, making it less suitable for regulating the volume or capacity of flow in pipes.

2. Plug valve

This valve has a function that is almost the same as the gate valve. However, the difference is that the plug valve can open and close the flow completely. This valve is usually used to channel gas through pipes.

3. Ball valve

The ball valve is a type of quick-opening valve, also known as a quick opening valve. This valve can fully open with just a quarter turn when the ball valve is closed. 

4. Check valve

This valve functions to prevent the flow in the pipe from reversing direction.

5. Butterfly valve

As the name suggests, this valve has a shape resembling a butterfly. This valve functions to control the flow that has low pressure. You only need a quarter turn to fully close or open this valve.

6. Globe valve

This valve functions as a closure for gas flow.

Read Also : 30 Components of Car Carburetors and Their Functions

7. Diaphragm valve

This valve functions to tightly close the flow in the pipe. This valve has a calm characteristic so that the flow and fluid can be channeled quickly. Therefore, this valve is often used in flow control, or liquids with thick concentrations such as sludge, corrosive liquids, air pressure, gas, solids in suspension, and other viscous liquids.

8. Pressure relief device

This valve functions to control the pressure in the pipe so that the pressure that occurs does not exceed limits during the piping system process. This way, wear on the equipment can be prevented. 

9. Pressure Reducing valve

This valve functions to maintain pressure within the piping system to remain stable. If there is high pressure in the piping system, this valve will reduce that pressure.

10. Traps valve

This valve functions to drain condensate (residue from natural gas converted to liquid) from the steam pipe without releasing steam. 

Thus is the review regarding the needle valve along with other valves found in the car carburetor. To ensure your car's carburetor functions well, it is advisable to perform regular maintenance by visiting a Daihatsu workshop. Because a problematic carburetor can cause the engine's combustion system in the combustion chamber to be unstable due to an improper air-fuel mixture. This will certainly lead to a decrease in car performance and increased fuel consumption. 

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