Product Name: Flexible Graphite Gland Packing
Type: Seal Packing, Gland Packings for Valves
Material: Flexible graphite with special lubricant
Structure: Special folded cross-section for low sliding friction
Color: Black
Application: High-temperature, high-pressure valves
Metal Content: None
Technical Data
Temperature Range: -270°C to +650°C (Packing temperature ≤ 450°C)
Pressure Rating: Up to 77.6 MPaG (Class 4500 LB)
pH Range: 0 to 14
Features
Excellent sealing performance
Low valve stem friction
High chemical resistance
Designed for extreme operating conditions
Source: https://www.magpievalves.com/flexible-graphite-gland-packings-class-4500-low-emission.html