DQB10-1T Electric Actuator Product Introduction

The DQB10-1T is a high-performance partial-rotary regulating electric actuator, specifically designed for 90° rotary valves (butterfly valves, ball valves, plug valves, dampers, etc.). It integrates safety protection, precise regulation, and stability, strictly adhering to national and industry standards. It is suitable for various industrial automation control scenarios such as petroleum, chemical, and coal mining, serving as the core drive equipment for remote valve regulation, on-site operation, and safety interlocking.

I. Core Performance and Specifications

The DQB10-1T features a rated output torque of 100N·m and a standard output speed of 1r/min as its core performance, meeting the precise regulation needs of small to medium-sized 90° rotary valves. The standard power supply is three-phase 380V/50Hz, with customizable options for single-phase 220V, 660V, etc., compatible with various industrial power grids. It employs a dedicated flameproof three-phase asynchronous motor with high starting torque, smooth operation, and Class F insulation, suitable for a 10-minute short-time duty cycle (customizable to 30 minutes). Position control accuracy is ≤±1%, and travel repeatability deviation is ≤0.5°, ensuring sensitive regulation response to meet the continuous fine-tuning requirements of process parameters like flow, pressure, and liquid level.

The protection rating is IP55, upgradable to IP65/IP67 for special conditions, offering excellent dust, water, and mild corrosion resistance. The operating environment temperature ranges from -20℃ to +60℃, expandable to -40℃~+80℃ for custom versions, with relative humidity ≤95% (no condensation at 25℃), adapting to harsh conditions such as humidity, dust, and high salt spray. The protection mark is dIIBT4, complying with GB3836.1-2000 and GB3836.2-2000 standards, suitable for locations with explosive gas mixtures of groups IIA, IIB, and T1-T4. Its safety performance is certified by authoritative bodies. The mechanical structure is compact, small in size, and lightweight, featuring standard interfaces for various valve installations, allowing 360° unrestricted orientation for flexible on-site layout.

II. Regulation Control and Safety Features

As an integrated regulating product, the DQB10-1T features a built-in high-precision control module, enabling 4~20mA analog signal input and output without an external control box, achieving continuous valve opening regulation and position feedback. It supports automatic/manual mode switching and is equipped with a lightweight handwheel mechanism for manual operation during power outages or debugging, ensuring smooth switching and effortless operation. Built-in dual limit protection is provided: travel limits use high-precision micro-switches, with 2-4 contacts for closing and opening directions respectively for precise positioning; torque limits can be adjusted as needed, featuring sensitive action and high repeatability, effectively avoiding valve sticking and damage from over-torque.

It features comprehensive electrical safety protection: automatic detection and correction of power phase loss and reverse phase, eliminating the need for manual wiring adjustments; real-time monitoring of motor overheating, overloading, and stalling, with immediate shutdown and alarm output upon fault detection. Input and output signals use photoelectric isolation design for strong anti-interference capability, preventing control anomalies caused by industrial electromagnetic interference and ensuring stable signal transmission. Optional bus communication modules (Modbus, Profibus, etc.) allow seamless integration into DCS and PLC automation systems for remote centralized control, data acquisition, and intelligent management.

III. Structural Design and Durability Advantages

The mechanical transmission utilizes a high-precision worm gear reduction mechanism, offering high efficiency, low operating noise (≤55dB), and strong self-locking performance. It securely maintains the valve position after power loss, preventing valve position drift caused by medium pressure. Key transmission components are made of alloy steel and undergo precision heat treatment, ensuring high hardness, wear resistance, long service life, and no gap loosening during long-term operation. Valve position feedback employs dual monitoring via a mechanical indicator and electronic sensor, intuitively displaying the opening position with precise data.

The housing is made of high-strength cast iron with an anti-corrosion spray treatment. Joints are equipped with high-quality rubber sealing rings for dust and water resistance, impact resistance, and aging resistance. Internal circuit modules are specially treated with three-proof paint (moisture-proof, salt-spray-proof, and mildew-proof) for stable long-term operation in corrosive environments. Electrical interfaces use sealed sealing joints with secure wiring and good sealing, suitable for conductor cross-sections of 1.5-2.5mm², facilitating convenient installation and maintenance. The overall modular design ensures strong parts interchangeability and easy replacement, reducing later maintenance costs and downtime.

IV. Application Scenarios and Core Value

The DQB10-1T is widely used in petroleum, chemical, coal mining, metallurgy, pharmaceuticals, sewage treatment, gas transmission, and other industries. In the petrochemical sector, it fits the regulation of butterfly and ball valves in various medium pipelines; in coal mining scenarios, it meets the safety control needs for dampers and gas pipeline valves in underground non-excavation faces; in the pharmaceutical and food industries, it fits the precise regulation of sanitary pipeline valves; in sewage treatment and metallurgy, it is used for valve automation control in desulfurization, denitrification, and water supply systems.

Compared to ordinary actuators, the DQB10-1T boasts core advantages such as safety protection certification, precise regulation performance, multiple protection mechanisms, and high protection durability. It resolves pain points of traditional equipment like poor regulation accuracy, insufficient safety, and weak stability. The product complies with JB/T8528-1997 and JB/T8529-1997 industry standards, offering reliable quality and stable performance. It enables unattended automated operation, improving system control efficiency and safety levels, making it an ideal choice for various industrial regulation scenarios.

V. Summary

The DQB10-1T regulating electric actuator integrates four major advantages: safety protection, precise regulation, stability and durability, and intelligence and convenience. With core features such as 100N·m torque output, IP55 protection, dIIBT4 protection class, and 4~20mA signal regulation, it perfectly adapts to the automation control needs of 90° rotary valves. Relying on stringent quality standards, comprehensive protection functions, and broad scenario adaptability, it provides a solid guarantee for the safe, efficient, and stable operation of industrial processes, making it the preferred valve drive equipment for high-precision regulation conditions.