GAD
Description
Copes-Vulcan Port Throttling GAD Trim was developed to meet the rigorous requirements of feedwater and feedwater start-up control. It is an excellent solution for applications where plug instability or vibration exists due to turbulence or high velocity. The trim’s cage-guided design ensures stable modulation and reliable performance in severe service conditions. Ideal for high-pressure water and steam applications, it offers consistent control and is well-suited for use in automated valve systems requiring precise regulation.
Features
- The control mechanism is situated in a zone of low turbulence that avoids flow-induced instability or standing pressure waves.
- Internal cage guiding results in low hydraulic unbalance, reducing required actuator force.
- Custom engineering of the flow control areas optimizes the valve characteristic to system requirements.
- The flow streams through the stationary cage result in energy dissipating jet impingement within the bore of the cage.
- Designed to give optimum flexibility in power operated control valves, the trim is available in double seat, balanced single seat and tandem versions.
- Quick-change design with no threaded or welded parts. Seat ring is a separate replaceable item.
Applications
• Feedwater & feedwater startup control
• High pressure steam
• Gas letdown
• High mass flow rate pressure reduction
