Common fault and cause analysis of wilden pump

A few varieties of wilden pump in a particular environment, with intermittent work phenomenon, work and everything is normal. Valve icing, confirmation methods: dead pump with a cup of boiling water down on the valve assembly, to see the effect. 1 of the gas source to keep dry, and to minimize the amount of water vapor in the gas source; 2. Changing the pump surrounding environment, so that the temperature rise to prevent icing; slow operating frequency can also eliminate icing phenomenon.
Silencer gas gas in a small amount of material. Diaphragm pressure plate loose; 2. Loose bolts inside and outside the cavity; 3. Diaphragm damaged. Must open the entire pump, cleaning and maintenance, including the valve assembly should also cleaning the fuel, at the same time to find out the reasons for processing.
The pneumatic diaphragm pumps casing material. Materials appear at the bolts loose or on the unbalanced balance on the bolt. Pump to work but no material played, or although the material to play but the pressure is low, the flow of small sealed well. Feed port or the feed line is not sealed; 2. Feed line, such as a check valve, the also possible valves open; 3. Material viscosity is too high, the light weight of the ball valve can not be timely sealing valve; 4. ball or seat is damaged is not sealed; 5. bolts loose not sealed; diaphragm pressure plate loose is not sealed; shaft U-ring, the O-ring in the thimble, valve pilot valve is not sealed intake cover gasket is damaged .

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