一．Product Introduction
The Eccentric Flange Segment Ball Valve is a sophisticated control valve widely applied in industrial pipelines to regulate the flow, pressure, and direction of media such as liquids, gases, and slurries. It integrates the structural advantages of ball valves and segment valves, featuring an eccentric design that enables excellent sealing performance and extended service life.
This valve is commonly utilized in industries like petroleum, chemical, pharmaceutical, and water treatment, where precise flow control and reliable sealing are critical. Its flange connection type ensures easy installation and maintenance in pipeline systems, making it a preferred choice for engineers seeking both functionality and durability.
二．Product Features
- Superior Sealing Performance: The eccentric structure ensures that the sealing surface is not easily worn during opening and closing, achieving bubble-tight sealing even under high-pressure conditions.
- Long Service Life: Reduced friction between the sealing components due to the eccentric design leads to minimal wear, significantly prolonging the valve’s operational lifespan.
- Wide Media Compatibility: Capable of handling various media, including corrosive chemicals, high-temperature fluids, and abrasive slurries, thanks to the availability of different material options (such as stainless steel, alloy steel, and special coatings).
- Precise Flow Control: The segment ball design allows for accurate throttling and flow regulation, making it suitable for both on-off and control applications.
- Easy Maintenance: The flange connection and modular design facilitate quick disassembly and repair, reducing downtime and maintenance costs.
三．Technical Data
- Size Range: DN15 – DN300 (or 1/2″ – 12″)
- Pressure Rating: PN16 – PN160, Class 150 – Class 900
- Temperature Range: -20℃ – 250℃ (depending on material; can be extended to -40℃ or higher with special materials)
- Material Options:
- Body: Cast steel, stainless steel (304, 316, 316L), alloy steel
- Ball/Seat: Stainless steel, hard alloy, PTFE, rubber
- Actuation Types: Pneumatic actuator (as shown in the figure), electric actuator, hydraulic actuator, or manual operation
- Sealing Class: ANSI Class VI, ISO Class A
- Connection Type: Flange (complying with ANSI, DIN, JIS, GB standards)
- Flow Coefficient (Cv): Varies with size and design, typically ranging from 5 to 5000+
