Correct installation of Air operated double diaphragm pump

Air operated double diaphragm pump as a new type of pump in fluid machinery, in chemical, pharmaceutical, environmental protection, food, electronics, paper, ceramics, coatings and other fields have been widely used. Although aodd pump is simple to use, strong adaptability to working conditions, low maintenance cost, but also need to pay attention to the daily installation and use, in order to ensure the efficiency of the pump, improve the service life of the diaphragm pump. The following details the installation and use of pneumatic diaphragm pump under general conditions precautions.

  1. Although pneumatic diaphragm pump does not use electricity but compressed air, but because of its working principle will also produce a trace of static electricity, so in flammable and explosive places, the pump must be completely grounded to eliminate static electricity.
  2. pneumatic diaphragm pump work vibration, when the use of the pump must be installed on a firm base, not suspended, not fixed. Supporting the use of hard tubes also need to be fixed, not suspended.
  3. Try not to install the valve at the inlet of the pneumatic diaphragm pump. If the working condition requires it to be installed, please be sure to fully open the valve before starting the diaphragm pump, close the air source when closing, and then close the valve after the diaphragm pump stops working completely. (Starting the pump when the valve is closed will produce high negative pressure, resulting in diaphragm strain. In actual field use, more than 50% of diaphragm damage is caused by forgetting to open the inlet valve when the pump is working or the valve is not open enough.

4 pneumatic diaphragm pump installation, inlet and outlet pipe diameter is not less than the diameter of the diaphragm pump, such as conveying high viscosity fluid, pipe diameter is better than the diameter of the diaphragm pump, to facilitate the flow of materials. (A smaller inlet pipe diameter will cause negative pressure damage to the diaphragm, and a smaller outlet pipe diameter will reduce the flow rate of the diaphragm pump.)

  1. The inlet and outlet pipe of the diaphragm pump and the joints must be sealed. Poor sealing of the inlet will not only leak liquid, but also reduce the self-priming capacity of the pump.
  2. The shorter the inlet pipe is, the greater the suction will be, and the number of elbows should be reduced as far as possible. It is recommended that the suction port be inclined to avoid vacuum suction when the pipe touches the bottom, which may damage the diaphragm.
  3. The particle size in the material must be smaller than the maximum particle diameter that the diaphragm pump can pass through. If there are too large particles in the material, please filter them in advance before pumping. (Large particles can clog the pump chamber and prevent it from working properly.)

8 pneumatic diaphragm pump start, please give more than 2 kilograms of air pressure, the best working state should be maintained at 5-7 kilograms of air pressure, please close the valve quickly, do not close slowly. (Opening or closing the valve too slowly will cause the large and small slider in the valve room to stop in the middle position and cannot be replaced. At this time, it is necessary to open the valve room to adjust the position of the large and small slider.)

  1. Pneumatic diaphragm pump installation is recommended to support the use of pneumatic triplet, pneumatic triplet can adjust the flow, filter moisture and impurities in the air, lubrication valve chamber. Diaphragm pump supporting pneumatic triplet has long service life and low failure rate.

10 conveying viscous, easy to condense materials, use the need to clean in time. If the pump is not used for a long time, please clean it and store it in a dry and clean place.

Correct installation of Air operated double diaphragm pump-China Saiken Pumps