On the selection of rubber diaphragm materials

Pump valves are widely used in industry, agriculture, and life. The realization of their functions such as suction/pressure regulation and throttling can be said to be completely dependent on diaphragms. However, the use scenarios of pump valves are changeable. Different use environments have different effects on rubber membranes. Sheets have different performance requirements, and the material determines its basic performance. Today we will talk about the performance between different materials for your reference.

EPDM (EPDM), because of its good ozone resistance, aging resistance, and low cost, is the preferred material for Rolling diaphragm, and it has a large share in water pumps and air pumps. , in order to make EPDM have more properties, people have successively improved it. For example, in order to make it have good elasticity, flame resistance and other requirements, new improved varieties such as ethylene propylene chloride and sulfonated ethylene propylene have been successively produced. , so if we hear the manufacturer say that the EPDM material is used to make a certain product, it may also be an improved EPDM

Next, let’s talk about silicone rubber. Its biggest feature is that it is non-toxic and tasteless, and it can come into contact with food. Therefore, where a rubber diaphragm needs to be used in food environments such as water dispensers and coffee machines, silicone rubber materials are the first choice. In addition, the high temperature of silicone rubber is 200°C It can also maintain a certain degree of resilience and toughness. In Europe and the United States, kitchenware made of silicone rubber is very popular, and because it has very little rejection reaction to the human body, it is also widely used in the medical industry.

Finally, let’s briefly talk about neoprene rubber and nitrile rubber. Neoprene has good acid and alkali resistance and chemical resistance, and its application can often be seen in the chemical industry. The biggest advantage of nitrile is oil resistance, so in the chemical industry Great advantage when conveying oily materials

Ok, the simple popularization of Fabric reinforced diaphragm materials has been completed, and there are still many rubber materials, but due to space limitations, we will not talk about them today. If you have anything else you want to know or business inquiries, you can contact us at any time.

Founded in 1993, Hangzhou Biaozheng Rubber Plastic Fittings Factory is a professional enterprise engaged in the research, design and manufacture of rubber diaphragms.

The company not only has a complete set of rubber molding products such as kneading machine, open mill, filter machine, flat vulcanizing machine, etc., but also set up a mold processing and production center, which can customize various rubbers for customers. Diaphragm.