Neles™ Q-Disc™ Flow Balancing Trim

The Neles™ Q-Disc™ from Valmet is a next-generation flow balancing trim designed specifically for high-performance butterfly valves used in demanding control applications. Integrated into the Neldisc™ Model D metal-seated triple eccentric butterfly valve, the Q-Disc™ enhances valve performance by minimizing dynamic torque, improving flow stability, and significantly reducing noise.

Key Features

• Extreme flow balancing for control service, reducing dynamic torque effects caused by uneven pressure across the disc.
• Noise reduction capabilities of up to 12 dB, making it ideal for applications with strict acoustic requirements.
• Modular add-on compatible with LW, LG, and L6 Model D valves.
• Wide temperature range support, up to +600 °C, suitable for harsh process conditions.
• Simple, integrated design that maintains valve performance and durability.

Performance Benefits

• Superior control accuracy and responsiveness, even under high pressure drop conditions.
• Reduced actuator sizing requirements, leading to more cost- and energy-efficient valve packages.
• Improved reliability and process efficiency through optimized flow dynamics.
• Minimized cavitation at low opening angles, enhancing valve longevity.

Technical Specifications

• Size range: DN 80–300 (3″–12″)
• Pressure classes: PN 10–40 / ASME 150–300
• Cv range: 196–5720
• Design standard: ANDI/ISA S-75.01
• Material compatibility: Suitable for all body types and face-to-face lengths

Applications

• Control valve installations in power generation, chemical processing, and other demanding industrial environments.
• Flow balancing in systems requiring precise modulation and noise control.
• Retrofit or upgrade of existing Neldisc™ butterfly valves for enhanced performance.

The Q-Disc™ is a patent-pending innovation that combines smart engineering with practical benefits, making it a game-changing solution for modern flow control challenges.

Specifications