ZJM Electric Multi-stage Pressure-reducing Cage Guided Control ValveCharacteristic
1. Multi-stage throttling for energy dissipation:Utilizes multiple concentric cages or specialized multi-stage plug designs to reduce pressure in steps. This effectively lowers the flow velocity at each throttling stage, fundamentally eliminating cavitation damage and extending the service life of internal components under extreme pressure drops.
2.Superior noise reduction performance:The multi-stage pressure drop distribution avoids the sharp noise generated by single-stage high-velocity expansion. Compared to standard cage valves, it can reduce noise levels by 15 to 30 decibels, meeting strict industrial environmental standards.
3.Highly integrated intelligent drive:Equipped with an intelligent electronic electric actuator featuring built-in servo control. It supports non-intrusive calibration, fault diagnosis, and real-time position feedback, ensuring high precision and stability in the control loop.
4.Pressure-balanced design for low torque:The plug features a pressure-balanced structure with balance holes to offset high unbalanced forces from the medium. This allows for smaller actuator sizing even under ultra-high pressure conditions, improving the agility and accuracy of regulation.
5.Excellent erosion and wear resistance:Critical internal components like the cages and plugs are made of high-strength stainless steel or alloy steel, often reinforced with hardening treatments or Stellite hard-facing. This ensures reliable operation in high-speed, abrasive fluid environments.
6.Stable cage-guided structure:The large-area side-guiding design of the cage ensures precise axial alignment of the plug throughout its full stroke, effectively suppressing mechanical vibration and ensuring long-term stable performance under high loads.
7.Fail-safe logic and protection:The actuator includes built-in torque protection, thermal sensors, and stroke limit switches. It supports programmable fail-safe positions (such as fail-in-place, full open, or full close) upon control signal loss.
8.Modular design for easy service:Features a top-entry structure that allows the extraction of the actuator, bonnet, and internal cages as modules without removing the valve body from the pipeline, significantly reducing maintenance downtime and costs.