The case of the shock-resistant pressure gauge adopts a sealed structure, and fill it with shock-absorbing liquid (commonly used are silicone oil or glycerin), make sure the pointer and movement of the pressure gauge are immersed in oil. It is suitable for occasions where the environment has large vibrations, the medium has severe pulsation or instantaneous impact. For example, smelting and forging, hydraulic equipment, mining equipment, electric power and energy, engineering machinery and other fields.
There is usually an oil filling hole sealed with a rubber plug on the top of the shock-resistant pressure gauge case. Just remove the rubber plug and inject silicone oil or glycerin, then put the rubber plug on. Be careful not to damage the rubber plug during the process.
Be sure to confirm the specifications of the liquid that can be filled with the manufacturer, also, do not mix two or more liquids; And check whether the instrument is leaking oil, timely detection and maintenance can effectively slow down the loss of pressure gauges.