DINKONDA GLOBAL Power Plants Special Boiler Drain Gate Valve, Feedwater Shut-off Valve, And Flue Gas System Isolation Valve ROTORK CK500 Intelligent Multi Turn Electric Actuator

DINKONDA GLOBAL Power Plants Special Boiler Drain Gate Valve, Feedwater Shut-off Valve, And Flue Gas System Isolation Valve ROTORK CK500 Intelligent Multi Turn Electric Actuator 

Product Overview

This domestically produced intelligent multi turn electric actuator is a domestically developed replacement model for the benchmark Rotork CK500 (500Nm torque level). The flange interface, valve stem connection size, installation center height, and control signal definition are fully compatible with CK500, and can achieve on-site * * no modification of brackets, valve stems, and rewiring * * direct replacement, solving the pain points of long supply cycle, high spare parts price, and slow after-sales response of imported CK500. The product is developed for existing renovation projects such as thermal power, chemical, long-distance pipelines, and sewage treatment in China. It takes into account both switch off and continuous adjustment conditions, and supports multiple control schemes such as on-site operation, DCS remote control, and bus communication. It is the preferred domestic production solution for upgrading existing valve automation projects.

Structure and Compatibility Design

The whole machine continues the modular architecture logic of the CK series, while optimizing the structure for domestic working conditions. It is divided into five independent modules: power drive module, deceleration transmission module, independent intelligent control unit, manual operation mechanism, and sealed housing

1. * * The connection interface is fully aligned with CK500 * *: the output flange standard, valve stem sleeve specifications, installation positioning dimensions match the original CK500 one by one, without the need for machining modifications to the valve bracket and valve stem, greatly reducing the replacement period;
2. * * Oil bath fully sealed gear reducer * *: adopts a high load-bearing alloy helical gear set, fully immersed in oil lubrication, supports installation in any posture, has strong anti vibration performance, and is suitable for industrial sites with continuous vibration such as pump rooms, furnace sides, pipelines, etc;
3. * * Separated intelligent control box * *: The control unit can be integrated into the main body or remotely installed separately according to working conditions (up to 100 meters), suitable for high temperature, strong radiation, and valve points that are inconvenient for personnel to approach, and logically aligned with the original CK Centronik remote control solution;
4. * * Independent safety handwheel mechanism * *: The handwheel transmission link is completely decoupled from the motor drive, and the handwheel does not move during electric operation. In the event of power failure or malfunction, the valve can be manually opened and closed at any time. The operating torque has been optimized through mechanics, making manual operation more effortless than imported models with the same torque;
5. * * Shell Sealing Structure * *: Adopting a double-layer independent sealing structure, the wiring chamber and gear transmission chamber are isolated from each other, with a standard protection level of IP67 and an optional upgrade to IP68 immersion protection, suitable for outdoor rain and underground valve well humid environments.

Localization Optimization Core Advantages (different from the original CK500)

1. * * Signal compatibility breadth upgrade, compatible with mainstream control systems in China**
In addition to standard 4-20mA analog and switch signals, it natively supports Modbus RTU and HART bus protocols and can directly interface with domestic DCS and PLC systems without the need for additional signal conversion isolation modules; Parameter debugging supports dual modes of infrared handheld setter and local panel, with a Chinese menu interface, reducing the learning threshold for on-site operation and maintenance personnel.

2. * * Dual redundant sensors for torque and valve position, suitable for harsh safety conditions**
Independent torque sensor+non-contact multi turn encoder dual acquisition, valve position signal is not lost due to power outage; Torque protection can be independently set in both directions, with separate thresholds for opening and closing protection. It provides precise protection for different sealing characteristics of gate valves and globe valves, and can be selected with SIL3 safety certification version to meet the requirements of chemical and thermal power safety instrument systems.

3. * * Localized supply chain for components, with controllable delivery and maintenance**
Core electrical components, seals, and gear spare parts are readily available in domestic inventory with short delivery cycles; Support separate procurement of control boards, motors, sealing kits, and gear components, modular and individual replacement, without the need for the entire machine to be returned to the factory for maintenance, significantly reducing later operation and maintenance costs and breaking the monopoly of imported spare parts.

4. * * Wide range power supply adaptation, adapted to on-site voltage fluctuations**
The motor drive supports dual versions of three-phase 380V and single-phase 220V, with a power supply tolerance range of ± 15%. It has been optimized for anti surge and anti harmonic circuits to reduce the problems of actuator misoperation and circuit board damage caused by power disturbances in old factory working conditions where the power grid voltage is unstable.

5. Optimization of Temperature Control and Dehumidification System**
Built in self-adjusting PTC heating and dehumidification module, which can automatically start and stop according to the humidity inside the shell. Different from the original constant heating mode, it avoids internal component aging caused by continuous heating, and has stronger adaptability to high humidity valve wells and coastal salt spray environments; The anti-corrosion coating of the shell is made of salt spray resistant polyester coating, and the salt spray test duration is longer than the original CK500 standard.