ZDLM electronic electric cage guided control valve is an industrial automation control valve consisting of an electronic electric actuator and a high-performance cage-guided balanced valve body. This valve integrates advanced servo control technology, eliminating the need for an external servo amplifier as it can directly receive 4-20mA DC or 1-5V DC standard analog signals from control systems such as PLC or DCS. The actuator, through its built-in electronic module, efficiently converts electrical energy into linear displacement to drive the valve stem, causing precise movement of the balanced valve plug within the cage. By utilizing the throttling effect of the valve plug on the cage windows, it adjusts the fluid flow area in real-time to achieve accurate control of process parameters like flow rate, pressure, temperature, and liquid level. Due to its cage-guided design and pressure-balanced plug structure, the valve features excellent dynamic stability, high allowable pressure differential, low noise, and strong cavitation resistance, making it particularly suitable for automated processes with high pressure drops, large flow fluctuations, and strict operational stability requirements.

Product Image of ZDLM Electronic Electric Cage Guided Control Valve

Feature

1. Electronic integrated drive:Equipped with an integrated electronic electric actuator with a built-in servo system and position feedback module, simplifying system wiring and reducing space requirements.
2.Pressure-balanced structure:The valve plug features balance holes to effectively offset most of the unbalanced forces from the medium, ensuring excellent dynamic stability and vibration resistance during operation.
3.High allowable pressure differential:Since fluid thrust on the plug is balanced, the actuator requires minimal driving force to accurately control high-pressure fluids, significantly enhancing adaptability to high-pressure conditions.
4.Agile and precise response:The actuator features high resolution and a minimal dead zone, accurately capturing small signal fluctuations and executing valve position compensation instantly for low steady-state error.
5.Noise reduction and cavitation resistance:The cage-guided design and window-type throttling effectively alter flow direction and reduce velocity, significantly lowering noise and improving resistance to cavitation in harsh conditions.
6.Intelligent safety protection:The actuator includes overload, stall, and over-temperature protection. In the event of signal interruption or power failure, it can execute logical protection based on preset safety positions (full open, full close, or fail-in-place).
7.Material and environmental adaptability:Body materials include cast steel, stainless steel, and high-temperature alloy steel, compatible with thermal oil, high-pressure steam, and various chemical media across power, chemical, and metallurgical sectors.
8.Easy maintenance and durability:The cage structure provides a large guiding area and is easy to disassemble. As a modular throttling component, the cage can be replaced quickly based on wear without removing the valve body, reducing maintenance costs.