Teflon Backing Ring

A backup ring is a component used in conjunction with O-rings and is installed on one or both sides of the O-ring groove. Its primary purpose is to support the O-ring and prevent it from being extruded out of the groove under pressure. In high-pressure environments, especially in applications requiring resistance to chemical corrosion, high and low temperatures, and wear, Teflon backup rings are often used. This includes industries such as semiconductor, chemical, automotive, mechanical, food, and applications where electronic components need to have good electrical insulation properties.

Teflon materials offer superior characteristics, such as self-lubrication, extremely low friction coefficients, and high-temperature resistance (-100°C to +200°C), making them an ideal choice for various industrial machinery, precision automated machinery, and applications involving corrosive fluids. In extremely corrosive environments, Teflon backup rings made of PTFE material are particularly advantageous.