How to prevent oil filled pressure oil white list?

Oil filled pressure gauge, also called seismic pressure gauge. Is mainly used to measure the pressure. Its working principle is injected into the oil pressure gauge shell interior, because the oil cushion can have obvious impact on the earthquake, so that you can reduce 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, extend the service life of the instrument at the same time. When we use, sometimes found that when using a period of time, is in the table will have white, so how to prevent this problem? Actually to prevent oil filled pressure in the case of oil white, as long as it is good to do the following three things. 1. Select normal manufacturer production of glycerol, so there would be no impurities; 2. To strengthen the oil filled pressure gauge (inner core The spring tube and copper head) Cleaning process after the welding joint, pressure gauge of copper pipe and copper base after high temperature after heating stalwart, produce a large number of oxide and the residual flux on the surface, oil filled before, be sure to timely cleaning out clean. 3. Choose suitable for the use of the environment, avoid the oil filled pressure gauge using occasions of high temperature influence, undermining the oil internal composition, causing the oil change physical properties, and metamorphic pale.