Tell you how to better selection pressure gauge!

As we all know, a lot of thermometer, pressure gauge more, according to the purpose of the pressure gauge can be divided into ordinary pressure gauge, pressure gauge, oxygen, ammonia pressure gauge, electric contact pressure gauge, far eastone pressure gauge, pressure gauge, with inspection of vibration pointer gauges double tube or double, double needle single pipe pressure gauge, pressure gauge, digital display precision pressure gauge, etc. However, so many kinds of pressure gauge how to choose? Some areas according to use to define and some related according to the measured medium, and is install problem, today is to introduce a simple instrument: 1, used for measuring the viscous or the special medium such as acid and alkali, should choose the diaphragm pressure gauge, stainless steel spring tube, stainless steel, stainless steel shell or bakelite shell. 2, according to the measured medium is different, you should use the ammonia, oxygen pressure gauge pressure gauges, is need to pay attention to on the pressure gauge shall be stipulated by the color scale, and indicate the name of the special medium, oxygen gauge must be marked in red & other; Ban oil & throughout; Words, hydrogen with dark green under horizontal color code, color scale ammonia under the yellow line, and so on. 3, when installation, against the wall should be chosen on the edge of the pressure gauge; Directly installed on the pipeline, should choose without the edge of the pressure gauge; When used for direct measurement of gas, should choose watchcase behind a security hole pressure gauge. For reasons of pressure management position and convenient for observation, should choose the size of the casing diameter. Can know from the above introduction, the choice of the pressure gauge has a great demand, such not only for us a lot of convenience, the use of the most important thing is to make what we need to measure more accurate!