1. Main structural features
1. Forged steel valve body
● One-piece stamping (GB/T 12228 standard)
● Grain size 6 or higher (GB/T 6394)
● Minimum wall thickness exceeds standard by 25% (GB/T 12224)
2. Fixed ball design
● Upper and lower shaft support structure (60% reduction in working torque)
● Supersonic Sputtering (HVOF) Sphere Surface Treatment
● Valve Blowout Stem (GB/T 26480)
3. Compatibility with national standards
● Flange Size: GB/T 9113 Series
● Constructed Length: GB/T 12221
● Test Standard: GB/T 13927
2. Performance Benefits
1. Advantages of the material
● Tensile strength ≥590Mpa
● Impact energy ≥47 J (-40°C)
● Passed SSC/HIC (GB/T 4157) test
2. Tightness
● Two-way zero leakage (GB/T 13927 Class A)
● Automatic pressure compensation
● Sealing 30 minutes after fire prevention
3. Advantages of the national standard
● 100% compliance with domestic production
● Full compatibility with GB pipelines
● Maintenance costs reduced by 40%
3. Typical Applications
1. Oil and natural gas
● Valve room of long-distance main pipeline
● Natural Gas Processing Plant
● Oil Storage Inlet and Outlet System
2. Chemical industry
● High Pressure Reaction System
● Synthetic ammonia plant
● Methanol Synthesis Pipeline
3. Energy
● Supercritical Unit
● Nuclear Power Auxiliary System
● High-pressure water supply control
