Six-Eccentric Butterfly Valve

This series of high-performance valves is engineered for extreme industrial applications, comprising three models: the CVS-288 for ultra-high-pressure systems, the CVS-290 for general high-temperature use, and the CVS-290C for specialized cryogenic applications. All three models share a unique six-eccentric structural design. Compared to conventional triple-offset butterfly valves, this design offers significantly improved sealing, more flexible operation, and a lower wear rate, ensuring stable performance even during long-term operation. Its exceptionally wide operating range—from cryogenic LNG applications at -196°C to high-temperature conditions of up to 1100°C—enables it to serve critical sectors such as nuclear power, petrochemicals, aerospace, and renewable energy. This versatility makes it a single, unified technology capable of meeting a wide spectrum of extreme demands. The valve body is crafted from ANSI S31603 stainless steel, providing superior corrosion resistance and high strength to ensure stable operation in harsh environments and under extreme temperature fluctuations. Advanced manufacturing processes achieve a sealing face profile tolerance of just 0.01 mm and a mirror-finish surface roughness of Ra 0.156μm, ensuring every seal is precise and flawless. A protective chamfered design effectively prevents accidental damage during installation and maintenance, while the valve's aesthetic proportions and structural details meet the stringent requirements for high-pressure, high-temperature industrial equipment. The interplay of metallic texture and geometric proportions creates an understated yet professional visual impression, embodying a function-first industrial aesthetic. The six-eccentric structure, paired with a patented cam-driven mechanism, enables smoother valve actuation, requiring approximately 30% less torque than conventional triple-offset butterfly valves. This allows for smaller, more power-efficient actuators, leading to significant long-term energy savings. The sealing performance has been rigorously tested and validated under multiple extreme conditions, including cryogenic temperatures, high heat, and high pressure. Whether in LNG storage and transport, petrochemical refining, or nuclear safety systems, it maintains zero-leakage operation to guarantee system integrity. The valve can be seamlessly integrated into industrial automation systems for remote control, while also allowing for quick manual operation on-site. Maintenance is streamlined, requiring no complex positioning or specialized tools. Standard technicians can perform inspections and repairs, significantly reducing downtime and ensuring continuous, efficient production.