Oil filled pressure gauge how to avoid the oil?

Oil filled pressure gauge, also called seismic pressure gauge. Refers to the internal injection pressure gauge shell oil, because the oil cushion can have obvious impact on the earthquake, so that it can reduce the volatility, external vibration for pressure measurement, the effects of reading, through to the oil filled in the table, also parts of the machine lubrication effect and prolong the service life of the instrument at the same time. But there are in the process of our actual use is will find table leak phenomenon. So how to let the oil filled pressure gauge does not leak? In fact as long as find out the cause of the leak, we can prevent the leak. The principle of oil filled pressure gauge is mainly case inside filling the aseismic silicone oil or glycerine, in general, the causes of oil filled pressure gauge leak mainly have three: 1. Base is the thread seal between hex and pan was not well done, there might be a virtual welding welding or not sealing gasket. 2. Cover gasket between the circle and pan, there is cause gasket askew when fastening cover ring, and did not have the effect of sealing. 3. Fill oil plug at the time of installation are not smooth or not installed in place. So, when we use the oil filled pressure gauge, pay attention to the above three questions, under normal circumstances, the oil filled pressure gauge will not leak.