What should I do if the self-sealing refueling gun cannot be self-sealing?

Whether the fuel gun in the fuel truck can self-sealing depends mainly on whether the vacuum chamber can form a sufficient vacuum. Therefore, when the refueling gun cannot be self-sealed, it should be mainly solved according to the following ideas:

1. Check if the seal at the joint between the barrel and the gun body is reliable. Check if the O-ring is damaged at the joint. If it is damaged, it can be replaced after replacement.

2. If there is foreign matter on the taper surface of the barrel cone valve, remove the barrel and remove the dirt and reinstall it.

3. Check the vacuum chamber for leaks. When the vacuum cover, the vacuum diaphragm is broken or the locking screw is not in place, a vacuum cannot be formed and self-sealing.

4. The small flow rate is not self-sealing: in the case of small flow rate, the liquid flow rate is low, the liquid flow suction effect is weak, the vacuum chamber will not generate sufficient vacuum, and the spring force of the spring cannot be overcome to make the fuel gun self-sealing.

5 If you understand the working principle and use of the self-styled fuel gun, you can contact us, we will give you a satisfactory answer.

 Whether the fuel gun in the fuel truck can self-sealing depends mainly on whether the vacuum chamber can form a sufficient vacuum. Therefore, when the refueling gun cannot be self-sealed, it should be mainly solved according to the following ideas:

 1. Check if the seal at the joint between the barrel and the gun body is reliable. Check if the O-ring is damaged at the joint. If it is damaged, it can be replaced after replacement.

 2. If there is foreign matter on the taper surface of the barrel cone valve, remove the barrel and remove the dirt and reinstall it.

 3. Check the vacuum chamber for leaks. When the vacuum cover, the vacuum diaphragm is broken or the locking screw is not in place, a vacuum cannot be formed and self-sealing.

 4. The small flow rate is not self-sealing: in the case of small flow rate, the liquid flow rate is low, the liquid flow suction effect is weak, the vacuum chamber will not generate sufficient vacuum, and the spring force of the spring cannot be overcome to make the fuel gun self-sealing.

 5 If you understand the working principle and use of the self-styled fuel gun, you can contact us, we will give you a satisfactory answer.

 


Post time: Sep-25-2019