First, we focus on the core component of the diaphragm pump – the diaphragm. The diaphragm is subjected to frequent deformation and stress during the operation of the pump, so its material selection is crucial. Common diaphragm materials include fluorine rubber, polytetrafluoroethylene (PTFE), butadiene rubber and so on. The diaphragm of different materials has differences in chemical stability, wear resistance and elasticity, so it needs to be selected according to the specific process conditions and the characteristics of the transport medium.

Fluororubbers and PTFE are common choices when it comes to corrosion resistance. Fluorine rubber has excellent chemical corrosion resistance and is suitable for many acid and alkali media. PTFE, due to its excellent corrosion resistance, is often used to transport highly corrosive media, such as strong acids, strong bases and so on.

In addition to the diaphragm material, the pump body and valve body material of the diaphragm pump are also crucial. In general, metal, plastic and composite materials are common pump body and valve body materials. Metal materials such as stainless steel and cast iron are superior in strength and durability, and are suitable for some harsh working conditions. However, for some metal-sensitive media, it may be more appropriate to choose plastics such as polypropylene or composite materials.

In practical engineering, the selection of materials needs to consider many factors such as the nature of the medium, the working environment, and the operating pressure. The pursuit of corrosion resistance alone may neglect other performance indicators, so a comprehensive evaluation is required when selecting materials. The excellent performance of the diaphragm pump depends not only on its design and manufacturing process, but also on the reasonable material selection to provide reliable support for industrial production.

The diaphragm pump uses a two-way diaphragm structure, that is, through a piston to separate the liquid on both sides of the inlet and outlet. When the pressure inside the pump body changes, the piston will move to both sides, so as to achieve the suction and discharge of liquid. Compared with traditional centrifugal pumps, diaphragm pumps have the following notable features:

First of all, the diaphragm pump has a high self-priming capacity. Due to the existence of the piston structure, the diaphragm pump can self-priming when the liquid level is lower than the pump inlet, eliminating the complicated arrangement of the inlet pipe and reducing the use cost.

Secondly, diaphragm pumps can transport liquids containing particles, high viscosity and corrosive fluids. Because there is no shaft seal structure inside the pump body, the diaphragm pump can effectively avoid leakage problems, so that it is suitable for a variety of complex working conditions.

In addition, the diaphragm pump has a wide flow range and regulatory performance. By controlling the switch of the inlet and outlet valves, the flow regulation of the diaphragm pump can be realized to adapt to different transportation needs.

The role of diaphragm pump in liquid transport can not be ignored. It is widely used in chemical, petroleum, pharmaceutical, food and other fields, for conveying various media, such as acid, alkali, solvent, wastewater and so on. In the chemical industry, diaphragm pumps are often used to transport a variety of corrosive media, and their corrosion resistance makes the production process safer and more reliable.

In the petroleum industry, diaphragm pumps are often used to transport oil, natural gas and viscous media. Its energy-saving and efficient characteristics make the conveying process more economical and feasible.

In the pharmaceutical and food industries, diaphragm pumps are often used to transport various liquid pharmaceutical and food raw materials. Its structure is simple, easy to clean, in line with health requirements, to ensure the quality and safety of drugs and food.

In short, diaphragm pump, as an important liquid transport equipment, plays an irreplaceable role in industrial production. Its unique structure and performance make the diaphragm pump suitable for a variety of complex working conditions, and play a key role in the chemical, petroleum, pharmaceutical, food and other industries. With the continuous advancement of technology, it is believed that saiken’s diaphragm pumps will play a more extensive and efficient role in liquid transportation.