Performance Testing

The performance testing of injector valve rod includes electrical characteristics, accuracy, the tolerance of high temperature, low temperature, pressure as well as leakage, durability and others working conditions testing. These conditions of each injector valve rod will be tested before our injector valve rod are sent to customers.

Above are the tests needed to be done after the injector valve rod are finished producing. However, regular checking also very important to keep the injector valve rod perform well.

In order to make sure the injector valve rod works normally, there are some parts of injector valve rod needed to be checked regularly and before installing to injector.

① Check whether there is deformation, cracking, thread damage, quenching, leakage and rust in the guide sleeve, spring, gasket and tight cap of the valve rod. The tight cap of the valve rod must be replaced after being disassembled for more than 5 times, as shown in the following.

② Replace the tight cap of the valve rod and the copper gasket of the injector valve rod

③ Check whether the gap between the valve rod needle and the valve rod shell is within the standard range and whether it reaches the standard for use

④All parts should be examined for wear under a microscope at least 20 times larger

⑤ valve rod tight cap deformation, cracking, thread damage, quenching, leakage, will lead to black smoke vehicle cap, fuel injector damage.

⑥injector opening pressure greater than or less than the specified range may cause injector damage.
⑦ Failure to replace wearing parts in time during maintenance may lead to fuel injector damage.

These are some precautions you need to know to maintain an injector valve rod. If there are more questions about injector valve rod and other problems, you are welcomed to contact us, fueinjectorvalverod.com will do the best to help you solve your problems.