Performance Testing

The performance testing of injector nozzle nut 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 nozzle nut will be tested before our injector nozzle nuts are sent to customers.

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

In order to make sure the injector nozzle nut works normally, there are some parts of injector nozzle nut 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 injector nozzle nut . The tight cap of the injector nozzle nut must be replaced after being disassembled for more than 5 times, as shown in the following.

② Replace the tight cap of the injector nozzle nut and the copper gasket of the injector nozzle nut

③ Check whether the gap between the injector nozzle nut needle and the injector nozzle nut 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 injector nozzle nut 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 nozzle nut . If there are more questions about injector nozzle nuts and other problems, you are welcomed to contact us, injectornut.com will do the best to help you solve your problems.