What is a pressure gauge and how to make it?
An instrument with an elastic element as a sensing element to measure and indicate higher than the ambient pressure.
1. Pressure gaugeRefrigerant leakage is a common fault of air conditioning, refrigeration for dose adequacy of detection system, used to the pressure gauge, pressure gauge is a commonly used detection tool of freon refrigeration system, its shell diameter from 60mm to 250mm, a variety of specifications, suitable for air conditioner refrigeration system using a vacuum pressure gauge range to -0.1mpa 2.5MPa, as shown in figure 2-33,The pressure gauge and three way valve repair often supporting the use of clockwise three pass valve knob can make the valve repair, narrow hole, knob clockwise end, corresponding with the outdoor unit piping gas cut off, counterclockwise rotation knob, valve hole expansion, corresponding piping and outdoor group gas conduction, refrigeration system and the three way valve repair pressure gauge has been conducted, has nothing to do with the knob, together with three pass valve repair switch, can realize vacuum pumping, refrigerant filling and test pressure of the refrigeration system, etc..
A pressure gauge is a very common thing! Generally used especially in industry!Simplify it! For example, you live in the 80 floor, the water pressure will be able to get on, the pressure gauge is to detect this Dongdong, to test the pressure must be installed on the water pipe, right? ··························································But there are so many kinds of pressure gauges. I just say one of them
