Product Name: Low Emission Packing Set for Cryogenic Gate Valve (API 6D, Class 600 LB)
Structure: Full Packing Structure
Size: 46mm * 66mm * 5 Rings
Certifications: ISO 15848-1, TA-Luft (Class 1500 LB, -196°C)
Application Conditions: -196°C
Material Properties:
Graphite Purity: ≥99%
Metal Wire Content: 20% (Material: Inconel 600)
Sulfur Content: ≤50PPM
Chlorine Content: ≤20PPM
Features
Excellent stability with no leakage fluctuation under alternating ambient and cryogenic temperatures (-196°C).
Cost is less than one-fourth of European and American brands.
Professional technical guidance for installation and overall machine processing is available.
Operating Parameters
Speed: 2 m/s
Temperature Range: -200°C to +400°C (for most media), -200°C to +550°C (for steam)
pH Value: 0 to 14
Pressure: 25 MPa
Media: Suitable for most chemical substances (solvents, hydrocarbons, acids, alkalis, steam, alcohol, oil)
Except for strong oxidizing acids, such as sulfuric acid and nitric acid.
Source: https://www.magpievalves.com/low-temperature-gate-valve-packing-iso-15848-1-46mm-66mm.html