All-electric pallet truck manufacturers analyze the failure of the throttle valve of the pallet truck

The throttle valve in the pallet truck manufacturer of the all-electric pallet truck is to control the fluid flow by changing the throttling length or the throttling section. By connecting the section check valve and the flow valve in parallel, it can be combined into a single to the throttle valve. However, when we use the electric pallet truck daily, the throttle valve will fail, which is very troublesome. Then, let's analyze the failure problem of the throttle valve for you.

1. Common faults of the throttle valve of the electric pallet truck manufacturer of all-electric pallet trucks

1. The flow rate of the throttle valve is unstable and often Fluctuation occurs

2. There is little or no flow at the throttle valve outlet

3. The internal leakage flow increases

2. Failure analysis and diagnosis and solutions of all-electric pallet truck manufacturers

The flow rate of the throttle valve is unstable and fluctuates from time to time

Cause:

The oil is mixed with impurities and is adhered to the throttle valve. On the edge of the orifice, the flow cross-section becomes smaller, resulting in a slower flow rate; when the impurities in the oil are flushed, the flow cross-section increases and the speed increases. The temperature of the system rises, which causes the viscosity of the oil to decrease, thereby increasing the flow and speed. The damping device is blocked, air is mixed inside the system, and pressure fluctuations and jumps occur, making the speed unstable. The internal and external leakage of the throttle valve is large, the flow loss is large, and the required flow cannot be guaranteed.

Diagnosis and solution:

First, disassemble and wash the throttle valve, clean the stains, and replace the filter. If the oil is seriously dirty, it is recommended to replace the oil. The manufacturer of all-electric pallet trucks believes that certain cooling measures should be taken when necessary. Check the gap between the valve core and the valve body. If the gap is too large, it is safer to replace the valve core. Clean the throttle valve with damping device, and check that the moisture of the exhaust device is working properly. If it is not normal, it should be repaired and the air in the oil should be discharged.

There is no flow or very little flow at the throttle valve outlet

Cause:

The clearance between the valve core and the valve hole is too large, and the leakage is serious. The orifice is blocked and the valve core is stuck.

Diagnosis and solutions:

(1) The manufacturer of all-electric pallet trucks recommends to first find out whether there is a serious leak, find out the cause, and then prescribe the right medicine.

(2) Dismantle, clean the throttle, replace the oil, improve the filtration precision, and keep the oil clean.

(3) Check whether the gap between the valve hole and the valve core is too large. If it is too large, the valve core needs to be replaced.

The above is the content brought by the manufacturer of all-electric pallet trucks. If you have any other questions, please contact us!

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