The material type and characteristics of pneumatic sealing ring

Pneumatic sealing ring is a common sealing element used to ensure the sealing performance of gas in containers, mainly used in industrial equipment and machinery fields. According to different working conditions and requirements, pneumatic seals can be selected from different materials. The following are some common types of pneumatic seal materials and their characteristics.

Rubber material: Rubber sealing ring is the most commonly used pneumatic sealing ring material. Commonly used rubber materials are nitrile butadiene rubber (NBR), fluorine rubber (FKM), acetone rubber (ACM) and so on. The rubber material has the characteristics of good elasticity, abrasion resistance and corrosion resistance. Nitrile rubber is suitable for sealing under general working conditions, fluorine rubber is suitable for high temperature and corrosion resistant occasions, acetone rubber is suitable for sealing of automotive and mechanical equipment.

Polyurethane material: polyurethane sealing ring has the characteristics of wear resistance, oil resistance and high pressure resistance, suitable for high-speed rotation and high pressure working conditions pneumatic seal. Polyurethane material has good sealing performance, high dimensional stability and long service life.

Polytetrafluoroethylene (PTFE) sealing ring is a material with excellent chemical stability and high temperature resistance. PTFE sealing ring has low coefficient of friction, good corrosion resistance and excellent sealing performance. PTFE sealing rings are suitable for the sealing of corrosive media such as acid and alkali.

Metal material: Metal sealing ring is mainly made of stainless steel, copper, aluminum and other metal materials. The metal sealing ring has the characteristics of high temperature resistance, pressure resistance and corrosion resistance. The metal seal ring is suitable for sealing high temperature, high pressure and corrosive media.

Cellulose material: Pneumatic sealing ring Customized cellulose sealing ring is mainly made of paper, tape, cork and other cellulose materials. The cellulose seal ring has the characteristics of temperature resistance, pressure resistance and certain elasticity. Cellulose seal ring is suitable for low temperature, low pressure and non-corrosive media sealing.

Polyester material: Polyester sealing ring has good thermal stability and elastic recovery performance, suitable for sealing under high temperature and high pressure working conditions. Polyester material has good sealing performance, high dimensional stability and good solvent resistance.

The above are some common types of pneumatic sealing ring materials and their characteristics. According to the specific working conditions and requirements, the selection of the appropriate material can ensure the sealing performance and service life of the pneumatic seal ring. In addition, different materials can also be combined to achieve a better sealing effect.