Cavitation is always a concern to plant operators and maintenance personnel because of reduced plant availability and profitability. Cavitation not only decreases the flow through a valve, but it also causes material damage, excessive noise, and excessive vibration. Qublock provides a specially designed “ANTI-CAVITATION” trim device for its control butterfly valve based on a careful engineering review of the process applications. Compared to a typical butterfly valve, this special anti-noise trim minimizes cavitation more efficiently and prevents operational problems.

• Perfect Solutions for Cavitation Problems

  Qublock’s anti-cavitation trim design provides improved performance in demanding applications such as oil & gas production, oil refinery, fertilizer, ethylene, and propylene applications. Reduced vibration & cavitation, lower operating torques, and a longer valve life cycle while withstanding a high pressure drop are optimally achieved through Qublock’s low noise trim valves.

• Special Trim Design

  Qublock’s anti-noise trim can be selected to combat the damaging effects of cavitation using an isolation or elimination technique. The Qublock trim is specially designed based on trim service conditions.

• Tight Shut Off Performance

  Qublock provides a tight shut-off performance with the anti-noise trim design. If seat leakage occurs when a valve is closed, the fluid moves quickly from a high-pressure area to a low-pressure area, which may result in cavitation and potential damage. For this reason, a tight shut-off performance is important.

• Qublock Special Trim Advantages

  - Reduced Vibration
  - Low Noise Levels
  - Anti-Cavitation
  - Bubble Tight Shut Off