The CSV-830 Double Eccentric Butterfly Valve is a high-performance bi-directional zero-leakage valve engineered for demanding shut-off and flow control applications. Designed for long service life, easy maintenance, and exceptional sealing reliability, it performs efficiently in petrochemical processing, water treatment, marine engineering, steam systems, and industrial pipelines.
The CSV-830 Double Eccentric Butterfly Valve is specifically developed for industrial systems requiring dependable shut-off performance under high pressure, high temperature, and continuous cycling conditions. With its advanced double offset disc design, the valve significantly reduces seat wear during opening and closing, ensuring smoother torque operation, extended service life, and lower maintenance frequency.
Engineered and endurance-tested for long-term field reliability, the CSV-830 has successfully demonstrated over 100,000 operating cycles under 720 psi (49.6 Bar) pressure and more than 878,000 low-pressure cycles while continuously maintaining bi-directional zero leakage sealing performance. This makes it an ideal solution for mission-critical pipelines where operational stability and leak prevention are essential.
The valve body supports a broad range of material configurations including carbon steel, stainless steel, duplex alloys, nickel-based alloys, and special corrosion-resistant metals, allowing adaptation to aggressive chemicals, seawater, steam, gas, slurry, and abrasive media. Combined with its integrated high-strength stem construction, replaceable sealing system, and standardized actuator mounting platform, the CSV-830 offers both strong operational reliability and simplified on-site servicing.
Widely used across petrochemical plants, steel mills, marine installations, environmental water treatment facilities, power generation systems, and chemical process lines, the CSV-830 is built to provide secure isolation, precise flow control, and long-lasting industrial value.
Oil & Gas, Steam, Power Generation, Refining, Chemical Processing, Marine Engineering, Industrial Water Treatment
1. Advanced Double Eccentric Sealing Geometry
The CSV-830 utilizes a precision-engineered double eccentric disc structure that minimizes friction between the disc and seat during valve operation. This design greatly reduces sealing surface wear, lowers operating torque, and ensures smoother opening and closing under high differential pressure.
2. High Strength Integrated Stem Construction
A standardized one-piece high-strength stem is adopted to improve mechanical rigidity and torque transmission efficiency. The integrated stem design also provides excellent interchangeability with automated pneumatic, electric, or hydraulic actuators for easy system integration.
3. Reliable Stem Packing Sealing System
The PTFE packing ring combined with a carbon fiber anti-extrusion ring allows continuous compression compensation, ensuring stable stem sealing even under high cycling frequency, elevated temperatures, and demanding fire-safe applications.
4. Bi-Directional Zero Leakage Shut Off
The sealing assembly is designed to provide true bi-directional zero leakage performance, effectively isolating upstream booster pressure and downstream pipeline media. This ensures safe shut-off capability in critical process systems.
5. Easy On-Site Maintenance
The replaceable seat and sealing components simplify routine maintenance without requiring full valve removal from the pipeline, reducing plant downtime and maintenance labor costs.
6. Wide Material Adaptability
CSV-830 supports a wide variety of body, disc, stem, and seat materials to handle corrosive chemicals, seawater, steam, abrasive slurry, sulfur-containing gas, and other aggressive media.
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