What is the service life of non-metallic expansion joint skin?

We know that expansion joints have a certain service life according to the material and media conditions, did you know that the skin of non-metallic expansion joints also has a certain service life, Luoying will introduce you to the service life of non-metallic expansion joint skin part.
The skin is generally composed of silica gel cloth and alkali-free glass fiber cloth and teflon cloth, the skin is a very high strength sealing composite material, can work continuously at high temperatures, and is resistant to high pressure, corrosion resistance is also very good. This skin can absorb the amount of compensation, but also can protect the fan in an accident.
Non-metallic expansion joints generally do not require maintenance inside the normal use of years. Moreover, the replacement of non-metallic expansion joints is easier and more convenient than that of metal expansion joints. The service life of the non-metallic expansion joint skin is very closely related to the working environment. Generally in non-metallic expansion joints in coal-fired power plants working temperature below 300 ℃, if the medium is not corrosive conditions of use, the use of ten years is also very common. If the medium is burning light oil or diesel, the service life of the skin is generally about three or four years. If the burning of heavy oil or crude oil class, to often clean, life expectancy of about one or two years.