■Cylinders of diesel engines ■There are high requirements for valve sealing. ■Generally use the “kerosene leakage method†to detect: After the cylinder head parts are assembled, pour the appropriate amount of kerosene into the air vents and observe the inlet and exhaust valves. No contact with the valve seat cone surface shall be leaked within 3 minutes. Using this method to detect a cylinder head part (two valves) takes about 10 minutes, the efficiency is low, can not achieve full inspection, affecting product quality, we use pneumatic measuring instrument to detect valve sealing, after long-term use, received very good Technical and economic benefits.
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