About Us
Performance Testing
The performance testing of valve 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 valve will be tested before our valves are sent to customers.
Above are the tests needed to be done after the valves are finished producing. However, regular checking also very important to keep the valve perform well.
In order to make sure the valve works normally, there are some parts of valve needed to be checked regularly and before installing to valve.
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. The tight cap of the valve must be replaced after being disassembled for more than 5 times, as shown in the following.
② Replace the tight cap of the valve and the copper gasket of the valve
③ Check whether the gap between the valve needle and the valve 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 tight cap deformation, cracking, thread damage, quenching, leakage, will lead to black smoke vehicle cap, fuel valve damage.
⑥Valve opening pressure greater than or less than the specified range may cause valve damage.
⑦ Failure to replace wearing parts in time during maintenance may lead to fuel valve damage.
These are some precautions you need to know to maintain an valve. If there are more questions about valves and other problems, you are welcomed to contact us, imvvalve.com will do the best to help you solve your problems.
