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Beware of electromagnetic valve repair not leave sequela
Q: tankers electromagnetic valve damage, how to deal with?
Answer: in the gas station, sometimes will meet the oil tankers slow or not out of the oil, the reasons why there are many, some of which is the result of a damaged solenoid valve. Usually for repair, in order to save trouble, the electromagnetic valve inside the diaphragm take off or head back to installation, make electromagnetic valve have connected effect, some people think it is repaired. This really makes the oil tankers, but will leave "catastrophic" consequences - not quantitative oil and gas don't count.
When the tanker quantitative refueling, electromagnetic valve is opened entirely, when the fuel charge with 0.3 to 0.5 liters, from a computer shut down big flow signal, small flow continue refueling to preset number, and finally close small flow, shut off the motor, so that won't appear nuisance oil phenomenon. When the electromagnetic valve inside the diaphragm take off or head back to use, the oil quantity to preset number, a motherboard signal can't closed oil circuit, continue to mass flow refueling, display panel display number is greater than the preset refueling number.
When double bolt appear afore-mentioned situations, a gun in normal oil, and the other a gun due to the bad the electromagnetic valve, but not closed oil circuit, turning the situation can also give oil, but due to the mainboard didn't get boot signal, so can't count, there are some hidden trouble.
Therefore, when electromagnetic valve cannot open lead to the oil tankers, should be the correct maintenance. First of all, should check electromagnetic valve control circuit part, such as the zero line is entering, light valve plate for damage, etc. Secondly, to check the electromagnetic valve their own fault, such as valve inside coil is breaking, valve film hole whether blockage in the valve failure. If it is electromagnetic valve own fault and can't repair, should change new electromagnetic valve. In buying electromagnetic valve should pay attention to model should be replaced with the same.
