Products
Double-Eccentric Semi-Ball Valve – Side-Mounted Anti-Clogging Valve
High-performance side-mounted double-eccentric semi-ball valve engineered for water, sewage, and industrial flow control. Featuring an anti-clogging straight-through design, powerful self-cleaning shearing action, and low operating torque, this industrial valve serves as a reliable shut-off and throttling alternative to gate and butterfly valves. Ideal for pumping stations and water diversion projects.
Technical Specifications
| Model | VD-BV-BPGH |
|---|---|
| Nominal Size | DN100–DN1400 (4"–56") |
| Nominal Pressure | PN10–PN40 |
| Working Temperature | 0°C–85°C |
| Applicable Media | Water, sewage, or media with physical and chemical properties similar to water. |
| Manufacturing Standards | CJ/T 283, GB/T 26146 |
| Connection Flange Standards | GB/T 17241.6, GB/T 9113 |
| Performance Standards | GB/T 13927 |
Discription
1. Product Overview & Core Applications
The side-mounted double-eccentric semi-ball valve is a next-generation industrial valve engineered for precise fluid management and heavy-duty flow control. To satisfy diverse automation and system integration requirements, this high-performance valve offers multi-actuation versatility, seamlessly supporting manual, electric, and pneumatic actuation options.
Engineered with excellent overall structural rigidity, minimal head loss, robust anti-fouling capabilities, and reliable bi-directional sealing, this industrial valve excels under the most demanding pipeline environments. It easily handles high-velocity flows and media containing dense impurities, such as water, oil, and gas. As a premium, long-lasting alternative to traditional gate valves and butterfly valves, it serves as an ideal shut-off and throttling device, widely utilized across critical infrastructure sectors including:
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Large-scale water diversion and water transmission projects
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Municipal and industrial pumping station systems
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Urban water supply and drainage networks
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Industrial wastewater and sewage treatment plants
2. Key Product Features & Technical Advantages
Superior Flow Capacity & Anti-Clogging Design
When at the 90° fully open position, the valve plug (ball segment) completely retracts into the body’s ball cavity. This creates an unobstructed, straight-through flow path that minimizes fluid resistance (head loss) and eliminates any risks of particle jamming, media clogging, or flow obstruction.
High Stability Under Extreme Working Conditions
This high-pressure semi-ball valve exhibits exceptional adaptability to high-velocity and high-flow rate applications. It maintains stable, vibration-free operation even when functioning under high differential pressures at minimal opening degrees, preventing cavitation damage.
Low Operating Torque & Effortless Actuation
During the opening and closing cycles, the advanced double-eccentric geometry allows the valve plug to instantly disengage from the valve seat. This zero-contact movement drastically reduces the daily operational torque, ensuring exceptionally smooth rotation and significantly extending the service life of both the sealing face and the seat.
Reliable Self-Cleaning & Shearing Action
Utilizing its specialized eccentric structure, the valve generates a powerful squeezing and shearing action between the plug and the seat during closure. This mechanical clearing mechanism easily cuts through and wipes away scale, sticky media, or solid build-ups on the sealing surfaces, consistently maintaining a bubble-tight, leak-free seal.
Wear Compensation & Extended Service Life
The innovative double-eccentric alignment enables the spherical sealing pair to automatically compensate for mechanical wear over long-term operations. This ensures drop-tight sealing performance even after tens of thousands of cycles, greatly extending the valve’s lifecycle and lowering overall maintenance costs for enterprises.
Compact Structure & Low-Maintenance Cost
Featuring a space-saving and compact body design, this valve offers exceptional pipeline efficiency. Its structural design ensures straightforward on-site installation, quick disassembly, and hassle-free routine inspection, which significantly reduces pipeline downtime and operational overhead.
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