Pneumatic system failure

Pneumatic control valve gas source poor quality pneumatic system failure is the most common
The moisture the impact and failure analysis
Water is the compressor suction wet air is formed upon cooling. The moisture of the pneumatic device components rust, affecting the action of pneumatic components. The impact of water is as follows.
1 pipe. Cause rust inside the pipeline; pipeline corrosion, resulting in air leakage, rupture the packaging; stranded at the bottom of the pipe resulting from lack of air flow, the pressure loss increases.two position three way valve
2 components. Rusty pipes, accelerated filter clogging, the filter does not work; pipe rust debris into the internal valve, causing a malfunction, air leakage; rust debris bite, not the smooth functioning of components; direct impact on the components of the pneumatic components, causing poor conversion, the unstable air leaks and action; drops of water intrusion inside the valve body, causing malfunction; water droplets into the internal components, not the smooth functioning; the water droplets flush lubricating oil, poor lubrication, failure of the valve, actuator operation is unstable ; valve stranded in the water droplets and flow, the pressure loss increases; component damage caused by water hammer occurs.
(3) the environment. Emitted from the exhaust out vent turn on the water, pollute the environment. The moisture can cause the failure of the fault processing method in addition to water, i.e., the compressor exit temperature drops to enable the analysis of the aqueous droplets, and the exclusion. To this end, after the compressor should be set up and install the cooler and separator, air filter installed in the compressor population. Horizontal pipe slope, install the drain valve at the low end. Export install the dryer.
Can be used in addition to water measures are as follows.
a. Adsorption of water law: adsorption of water adsorption ability of the material, such as silica gel, aluminum gel and molecular sieve
b, pressure dehumidifier: increasing the pressure, so that the volume is reduced, the temperature decreases, thereby precipitated water droplets.
c. Mechanical water: mechanical barrier, cyclone, in addition to water.
d. Frozen addition to water: the air refrigeration equipment cooled to below the dew point, the water vapor condenses into water precipitation.direct acting solenoid valve