1. Main structural features
1. Two-piece design
● Bolted connection of valve body and cover (ASTM A193 B7 bolts)
● The seat can be replaced without removing the pipeline
● Maintenance time is reduced by 50% (compared with the integrated type)
2. American Standard Flange
● Standard: ASME B16.5 Class150-600
● Sealing surface: RF/RTJ/FF
● Hole Tolerance: ±0.5mm (ANSI B16.25)
3. Improved sealing system
● Double Piston Effect Valve Seat (API 6D)
● Fire safety design (API 607)
● Anti-Static Device (Resistance <10Ω)
2. Performance Benefits
1. Service Benefits
● Valve seat replacement online (≤20 minutes)
● Seal components can be replaced separately
● Standard tools can be used for disassembly and assembly
2. Compatible with American standard
● Seamless connection with ASME pipelines
● 100% interchangeability of flanges
● Meets American Petroleum Institute API specifications
3. Reliability
● Maintenance-free period ≥ 8 years
● Fire test for 30 minutes without leakage
● Seismic performance conforms to IEEE 693
3. Typical Applications
1. Oil and gas field
● Crude Oil Pipeline
● Natural Gas Processing Plant
● LNG loading and unloading system
2. Chemical process
● High Pressure Reaction System
● Corrosive Environment Control
● Ethylene cracking unit
3. Energy
● Supercritical Installation
● Nuclear Power Auxiliary System
● High-pressure water supply control
Ball Valve Series
Butterfly Disc Valve Series
Slide Valve Series
Stainless Ball Valve Series
