1, pressure gauge should be installed on the flow rate of a smooth linear pipe section, not in the bending of the pipe, dead corner; Pressure point mounting position: When the medium is gas, in the upper half of the pipe. When the medium is steam, it is best to be on the horizontal center line of the pipe in the range of 0 to 45 degrees between the upper part of the pipe and the horizontal center line. When the medium is liquid, it is in the range of 0 to 45 degrees between the lower half of the pipe and the horizontal center line. 2, pressure gauge should be calibrated qualified before installation and use. The pressure gauge should be preceded by gaskets and should not be wrapped in raw material belts or directly onto the valve. 3, in-place installation with steam or media temperature of more than 60 degrees C pressure gauge, in order to prevent overheating and damage to the instrument elements, in the pressure point and pressure gauge valve should be added ring or U-shaped elbow, there is ring or U-shaped elbow in the condensate, the valve is in the normal temperature state, can greatly extend the service life of the valve. 4, measuring the pulsating pressure of the compressor or pump outlet, in order to protect the pressure gauge and make the measurement accurate, the pressure gauge should be installed in front of the buffer or throttle; 5, the measurement medium contains dust, particles or impurities in the case should be thickened, or install dust remover, sewage valve, easy to blow-clean the pressure tube. Wet gas should be fitted with a water separator. 6, pressure gauge and pressure point distance should be as short as possible, in order to avoid measurement lag, the maximum pressure tube should not exceed 50m, too long should use pressure transmitter; 7. The pressure gauge of low range should avoid the effect of static pressure formed by the liquid column on the measurement. The pressure measurement of critical equipment should be installed on two pressure gauges to ensure safety. The pressure gauge should be regularly maintained and checked, calibrated or checked within the prescribed time limit.
