Why is oil filled pressure oil white list?

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 sometimes see oil filled pressure inside the watch case of white oil. As a professional manufacturer, we summarized the may cause oil white three conditions. 1. Manufacturers use glycerin is too cheap, impurity is in the oil; 2. The oil filled pressure gauge (inner core The spring tube and copper head) Cleaning process does not reach the designated position, after the welding joint of pressure gauge copper pipe and copper base after high temperature after heating stalwart, produce a large number of oxide and the residual flux on the surface, such as not to clean, oil filled pressure gauge will be white in a short time after. 3. Oil filled pressure gauge using occasions of high temperature influence, undermining the oil internal composition, causing the oil change physical properties, and metamorphic pale.