How to choose a Pneumatic diaphragm pump

Zhejiang Zhaoquan Pump Manufacturing Co., Ltd., founded in 2010, is a pump manufacturing factory specializing in R & D, design, production and sales. The company's main products: pneumatic diaphragm pump, electric diaphragm pump, magnetic pump, screw pump, horizontal stainless steel shielded pump, etc. we can provide you with suitable products according to your needs. Strive to achieve "high quality and high service", take the interests of customers as the starting point, and achieve customer satisfaction.

Pneumatic diaphragm pump because of its role range is relatively large, in recent years by the majority of customers welcome, but for how to choose the right model of pneumatic diaphragm pump also affects the heart of many technologies, then the following will tell how to correctly select the pneumatic diaphragm pump.

1, for the pneumatic diaphragm pump body material, diaphragm, the choice of seals, must be good! Diaphragm damage caused by the failure of pneumatic diaphragm pumps accounted for a high proportion of all failures, some occasions can reach more than 30% to 40%.

2, the selection must provide the name of the medium conveyed, so that the diaphragm pump factory to choose the appropriate material diaphragm. As there are very many types of chemical liquids, the corrosiveness of various liquids also varies, the need for precise characteristic parameters, especially corrosiveness, concentration, volatility, vaporization pressure, viscosity, density, etc. These properties are closely related to the material selected, not only the material of metal, but also pay attention to the interaction between plastic materials and the medium.

Corrosive liquids are available in stainless steel, plastic or fluoroplastic depending on the degree of corrosion. You can refer to the table of corrosive parameters of the material. In the case of uncertainty about the characteristics of the material, it is recommended to choose the same material as the conveying pipeline.

3, to pay attention to the pneumatic diaphragm pump liquid temperature should not exceed 80 degrees. As the pneumatic diaphragm pump diaphragm material is made of rubber or tetrafluoro materials, such as high temperature diaphragm will become soft, which will lead to pneumatic diaphragm pump can not suck liquid and liquid. It can be seen that the temperature of the pneumatic diaphragm pump performance has a great impact on the selection must be noted.

4, pneumatic diaphragm pump air supply pressure can not exceed 0.8mpa, head can only reach about 80 meters.

5, pneumatic diaphragm pumps used in the working conditions of the tuning parts.

6. The size of the diaphragm pump model can be selected according to the flow rate or the calibre. The flow rate stated for diaphragm pumps is a test value at 7 kg pressure, at 0 suction and 0 head, the actual flow rate has to be estimated again according to the working conditions. If the calibre and flow rate do not match, a reducer fitting can be added to the inlet and outlet. The pneumatic diaphragm pump belongs to the volume pump, the shear of the material is low, can convey the material with particles. However, the size of the particles conveyed must be smaller than the maximum passable particle diameter of the pump.