1. Main structural features
1. WCB cast steel valve body
● WCB ASTM A216 Material (Carbon Steel Casting)
● Minimum wall thickness exceeds standard by 15% (GB/T 12224)
● Full pass design (flow resistance coefficient ≤ 0.05)
2. Worm gear system
● Two-stage worm gearbox (gear ratio 1:30/1:50)
● Self-locking function (supports any opening)
● IP65 protection grade (outdoor type, rainproof type)
3. Sealing Configuration
● Standard Type: PTFE Soft Seal (150°C)
● Improved Type: Solid Metal Seal (550°C)
● Flame Retardant Construction (API 607)
2. Performance Benefits
1. Advantages of the material
● Tensile strength ≥485MPa
● Impact energy ≥27J (-29°C)
● 40% lower cost than forged steel valves
2. Performance Characteristics
● 50% reduction in operating torque (compared to flywheel)
● 90° quick opening and closing (≤30 seconds)
● Accurate opening indication (±2°)
3. Cost-effectiveness
● Maintenance-free period ≥5 years
● High degree of standardization of spare parts
● Total cost savings of 35%
3. Typical Applications
1. Petrochemicals
● Crude Oil Pipelines
● Auxiliary systems for oil refining plants
● Chemical material pumping
2. Energy
● Power plant recycling water system
● Boiler feed water management
● Desulphurization system piping
3. Municipal construction
● Main water supply network
● Regional heating system
● Industrial wastewater treatment
Ball Valve Series
Butterfly Disc Valve Series
Slide Valve Series
Stainless Ball Valve Series
