Cavitation phenomenon and multi-effect evaporation of pneumatic diaphragm pump will harm the calculation of flow coefficient in specific production process. Noise and vibration will also be reasonably generated during the application process, which will immediately cause a reduction in the service life of the valve. Therefore, it is necessary to avoid valve cavitation and multi-effect evaporation in the whole process of valve selection.

Pneumatic diaphragm pump

The primary factor of the pneumatic diaphragm pump is that there are many types of commercial valve bodies, which is a very critical part of the selection of valve bodies. Common valve bodies include small total flow, direct double sitting, axial rotation, diaphragm, ball, dish, etc. Before selecting the valve body, it is necessary to analyze the main parameters of the operating medium throughout the whole process. The key factors are considered according to the combination of liquidity performance and unbalance. Pneumatic diaphragm pump in the selection of the valve body in the link the key is based on the shape and structure of the valve core.

The wear resistance of pneumatic diaphragm pump products is mainly when the liquid medium has a high concentration of wear-resistant material particles in the solution, each time the valve core and valve ball composition will be more serious friction. The material inside the valve must be firm, and the flow path of the valve should be smooth and clean. The corrosion of machinery and equipment is mainly caused by the erosion of the medium. When the machine and equipment achieve the control role, be sure to choose a simple valve structure as far as possible.

Pneumatic diaphragm pumps must use high-pressure gate valves and valves whose core raw materials are easily disturbed by changes in temperature and working pressure. During the application of pneumatic diaphragm pumps, the temperature and burden of the medium will cause a large change. In order to avoid cavitation phenomenon, flash should only be carried out in liquid medium.