Core Structural Features
1. V-Shaped Shear Structure: The V-shaped notch provides a cutting edge effect, effectively shearing fibers, paper scraps, and fine solid particles. It prevents clogging and scaling, making it suitable for solid-liquid mixtures.
2. Excellent Regulation Characteristics: It features inherent equal percentage flow characteristics, ensuring high regulation accuracy, stable control, and strong regulation stability under load changes.
3. High-Performance Hard Seal: The valve seat is made of hard alloy, coated with tungsten carbide/STL/NI60, etc., offering wear resistance, high temperature resistance, and erosion resistance. Custom-made bidirectional seals with high sealing levels are available to meet demanding shut-off requirements.
4. Diverse Valve Body Materials:
Standard: WCB carbon steel, 304/316L stainless steel;
Special: Duplex steel, Hastelloy, fluoropolymer-lined corrosion-resistant versions.
5. Pneumatic Drive Configuration: Single-acting/double-acting pneumatic actuators, paired with:
valve positioners, solenoid valves, filter pressure reducing valves, limit switches, and manual operating mechanisms, enabling remote automatic control.
Key Advantages
1. Dual-function control (regulation and shut-off), integrated design saves installation space and cost;
2. Wear-resistant and erosion-resistant, with a service life far exceeding that of ordinary control valves;
3. Low flow resistance, high flow capacity, and minimal media stagnation;
4. Rapid switching and fast response, suitable for frequent regulation and intermittent start-stop conditions;
5. Simple structure, easy maintenance, and low failure rate.
Technical Parameters
• Nominal Diameter: DN25～DN600
• Pressure Rating: PN16, PN25, PN40, PN64; Class150/300/600
• Applicable Temperature: -20℃～650℃ (Custom sealing materials can withstand high temperatures)
• Regulation Signal: DC 4-20mA
• Flow Characteristics: Equal percentage
• Connection Method: Flange, Clamping
Applicable Working Conditions
1. Chemical Industry: Regulation of slurries, adhesives, suspensions, and highly corrosive media;
2. Coal Chemical Industry, Power Industry: Coal powder, ash slurry, wastewater, desulfurization and denitrification slurry;
3. Paper Industry: Pulp, black liquor, fiber media (significant advantage in shear-resistant anti-clogging);
4. Building Materials, Mining: Slurry, powder mixtures;
5. Wastewater Treatment: Flow regulation of sludge and wastewater containing impurities.
