Do you know about the vacuum pressure gauge?

Vacuum pressure gauge is widely used to transport gas, liquid pipes and containers of measuring no danger, no crystals, not solidified body and corrode the metal liquid, gas, steam, etc. The pressure of medium size. Vacuum pressure gauge has small volume, safe and reliable performance, show clear advantages. Pressure vacuum gauge and vacuum gauge used to measure for steel, copper and copper alloy non-corrosive effect, no explosion danger of crystallize, solidify liquid or gas. Vacuum gauge is by measuring system ( Including joint, spring pipe, gear transmission mechanism) And instructions ( Include Pointers, dial) , watch case parts. Its working principle is based on the elastic element - Spring pipe deformation. When the measured medium is produced by the joint into the spring tube with side displacement, the displacement with the aid of connecting rod by gear transmission mechanism of pressure transmission and amplification, the pointer indicates that the pressure on the dial. Vacuum table is divided into pressure vacuum gauge and vacuum pressure gauge. Vacuum pressure gauge: based on the atmospheric pressure, the instrument used for measuring less than atmospheric pressure. Pressure vacuum gauge: based on the atmospheric pressure, the instrument used to measure and shorter than the atmospheric pressure. Pressure said there are two kinds of methods: one is absolute vacuum expression of pressure as the benchmark, known as the absolute pressure; Another pressure is indicated by the atmospheric pressure as the benchmark, known as the relative pressure. Since most pressure meter pressure is measured by the relative pressure, so the relative pressure is also called the table. When absolute pressure less than atmospheric pressure, available the absolute pressure inside the container less than a numerical value to represent the atmosphere. Called & quot; Vacuum & quot; 。 Their relationship is as follows: absolute pressure = atmospheric pressure + relative pressure; Vacuum = atmospheric pressure Absolute pressure; Our country legal pressure units for the Pa ( N/㎡) , known as PASCAL, referred to as 'Mr. Because the unit is too small, so it is often used to MPa (10 ^ 6 times unit Mpa) 。 Vacuum pressure gauge features stable performance, high accuracy, response speed faster. Firm structure, and sealing and makes the pipes easier to install.