Zero Leakage Graphite packing Ring

Zero Leakage Graphite Packing Ring is the unique type of Pure Graphite Packing Ring which is mainly used in the environment with difficult condition for valve and pump. Zero Leakage Graphite Packing Ring can play outstanding role when be used and anti-leakage. UNIQUEFEATURES: 1. There is no leakage occur after 200 times of movements of valve stem; 2. Leakage rate is below 1.0x10-8(Helium gas); 3. With low bolt load; 4. The maximum temperature: 560oC; 5. The maximum pressure: 45Mpa. *If you need more information about this Zero Leakage Graphite Packing Rings, please feel free to contact with technologist of Tiansheng.