Is it better to have a pressure gauge with oil or without oil? Answer: They each have their own characteristics. Let's take you through these two types of pressure gauges.
A pressure gauge with oil is called an oil filled pressure gauge, also known as a shock resistant pressure gauge. It is a mechanical pointer type pressure gauge with a filled liquid in the case, or a mechanical pointer (or rotary dial) type pressure gauge with a filled liquid and a damper in the case. It consists of a pressure guiding system (including joints, spring tubes, flow limiting screws, etc.), a gear transmission mechanism, a reading device (pointer and dial), and a housing (including case, cover, glass, etc.). The oil filled pressure gauge has good seismic resistance. Especially suitable for measuring fluid pressure in media with severe pulsation or instantaneous impact. The transmission indicator mechanism is immersed in viscous damping fluid, greatly reducing the impact of mechanical vibrations in the environment where the instrument is located on its operation. It adopts an umbrella sealed structure and can work in harsh environments such as high humidity, dust, and water. It has the characteristic of anti blocking and can be used for measuring high viscosity, easy crystallization, and solidification media such as cement and mud.
The shock resistant pressure gauge is suitable for places with severe environmental vibrations, and can withstand the pulsation, impact, and sudden unloading of the medium. The instrument indication is stable and clear. Widely used in mechanical, petroleum, chemical, metallurgical, mining, power and other sectors to measure the pressure of non corrosive media on copper and copper alloys.
A pressure gauge without oil is a regular pressure gauge, which belongs to the local indication type pressure gauge. It displays the pressure locally and does not have remote transmission display or adjustment functions. Ordinary pressure gauges are suitable for measuring the pressure and vacuum of liquids, gases, or vapors that are non explosive, non crystalline, non solidifying, and have no corrosive effect on copper and copper alloys. In the process of industrial process control and technical measurement, due to the high mechanical strength, easy production, simple installation, and convenient reading of the elastic sensitive components of general pressure gauges, they have been increasingly widely used.
