Has the following characteristics:
1. the sealing performance is good. In the long-term operation, the sealing state is stable and the leakage amount is small.
2. No adjustment during operation. Suitable for continuous, automated production.
3.long service life. Generally it can be used continuously for 1-2 years, and special can be used for 5-10 years.
Pressure in the sealed chamber:≤1MPa
Temperature in the sealed chamber:-30℃~200℃