一．Product Introduction
The Worm Gear V notch Ball Valve is a precision control valve that integrates a V-notch ball design with a worm gear actuation system. This valve is engineered for accurate flow regulation, throttling, and on-off control in industrial processes where manual or semi-automated, precise operation is required. The worm gear mechanism provides smooth, gradual actuation, making it ideal for applications such as petrochemical, water treatment, power generation, and chemical processing industries. It handles various media, including liquids, gases, and slurries, with high efficiency and reliability, even under demanding pressure and temperature conditions.
二．Product Features
- Precision Flow Control: The V-notch ball design delivers either linear or equal percentage flow characteristics, enabling accurate adjustment of media flow rates for optimal process control and ensuring consistent performance across different operating conditions.
- Worm Gear Actuation Advantage: The worm gear system offers smooth, torque-multiplied operation, allowing for precise positioning of the ball with minimal effort. It also provides a mechanical advantage, making it suitable for larger valve sizes or higher torque requirements.
- Robust Construction: Crafted from high-quality materials (such as stainless steel, carbon steel, or alloys), the valve body and components resist corrosion, wear, and high pressures, ensuring durability and a long service life in harsh industrial environments.
- Reliable Sealing Performance: Equipped with advanced sealing technology, the valve ensures tight shut-off with minimal leakage, complying with international leakage class standards (e.g., ANSI/FCI 70-2 Class V/VI) for enhanced process safety.
- Versatile Media Compatibility: Available in various material configurations, it can handle corrosive, viscous, and particulate-containing fluids, adapting to diverse industrial media and operational demands.
- Low Flow Resistance: The streamlined internal geometry minimizes pressure drop, promoting energy-efficient media transport and reducing operational costs.
- Easy Maintenance: The modular design allows for straightforward disassembly and maintenance, reducing downtime and ensuring the valve remains operational with minimal intervention.
三．Technical Data
- Size Range: Typically from DN25 to DN300 (or 1” to 12”) to meet different pipeline specifications.
- Pressure Rating: Commonly PN16 to PN64, ANSI Class 150 to Class 300, suitable for medium to high-pressure applications.
- Temperature Range: Depends on material selection, generally from -29℃ to 425℃ (with special materials enabling wider ranges for extreme conditions).
- Flow Characteristic: Linear or Equal Percentage, based on the V-notch configuration, to align with specific process control needs.
- Seat Leakage Class: Complies with ANSI/FCI 70-2 Class V or VI, ensuring minimal leakage during operation.
- Material Options:
- Body: Carbon Steel (WCB), Stainless Steel (304, 316, 316L), Alloy Steel
- Ball: Stainless Steel, Hardened Alloy (for wear resistance)
- Seat: Resilient Materials (PTFE, NBR, EPDM) or Metal Seats (for high-temperature/pressure scenarios)
- Connection Type: Flanged (as shown in the image), conforming to standards like ANSI, DIN, JIS, etc.
- Worm Gear Actuation: Provides a gear ratio that enables precise ball positioning; operating torque varies with valve size and pressure rating, designed for ergonomic and controlled operation.
- Standards Compliance: Manufactured in accordance with international standards such as API, ISO, and ASME, ensuring compatibility and reliability in global industrial applications.