Pressure gauge can open it?

Pressure gauge is widely used, it almost throughout all of the industrial process and research field, in the heat pipe network, oil and gas transmission, water supply, gas supply system, vehicle maintenance shop, etc can be seen everywhere. The working principle of pressure gauge is a sensitive element (by table Bourdon tubes, bellows, bellows) Elastic deformation, the pressure deformation by the transformation of movement in table to Pointers, cause the hands to display the pressure. The pressure gauge can open it? Instrument to tell everybody, can tear open pressure gauges, pressure gauge is a lot of more phyletic, recommend a detachable cover circle pressure gauge, convenient apart. Matters needing attention, the pressure gauge instrument must be installed vertically: 17 mm wrench to tighten, should be used when the should not strong torsional case; Transportation should avoid collision.