one.DQW Partial Rotary Valve Electric DeviceBrief Introduction

Abbreviated asQ-type electrical installation. It is a driving device for valves to achieve opening, closing, or regulating control, suitable for valves such as butterfly valves, ball valves, plug valves, and dampers that rotate 90 degrees. It can be controlled remotely or operated on-site. Widely used in industries such as power, metallurgy, petroleum, chemical, food, textile, papermaking, pharmaceuticals, water plants, and sewage treatment.
The performance of DQW electric device complies with the technical specifications of JB/T8528-1997 "Technical Conditions for Ordinary Valve Electric Devices"; The performance of the explosion-proof type complies with the provisions of GB3836.1-2000 "Electrical Equipment for Explosive Gas Environments Part 1: General Requirements", GB3836.2-2000 "Electrical Equipment for Explosive Gas Environments Part 2: Explosion proof Type" d "", and JB/T8529-1997 "Technical Conditions for Explosion proof Valve Electric Devices".

two.DQW Partial Rotary Valve Electric Deviceclassification

Classified by protection type: there are outdoor type and explosion-proof type;
Divided by control mode: there are conventional type, integral type, and integral adjustment type;
Conventional electric devices have a separate structure and require an external control box without on-site buttons. The integral electric device is an integrated structure that can input switch signals and output4-20mA signal with on-site buttons. The regulating electric device is an integrated structure that can input and output 4-20mA signals, adjust the valve opening size, and thus achieve the adjustment of flow rate.

three.DQW Partial Rotary Valve Electric DeviceIntegral type and integral adjustment type

Integrated type: The combination of the control system and the electric device is called an integrated electric device, and its electrical part mainly consists of integrated modules, button boxes, opening meters (or digital indicators), contactors, etc. The electrical components are installed on a reversible board for adjusting the torque control mechanism, stroke control mechanism, and opening indicator mechanism. There are three buttons on the button box, with the field in the middle/Remote control conversion button, with on-site valve closing button on the left and on-site valve opening button on the right. Covering the button box cover is for remote control, and remote control is for 24VDC switch contact control (24VDC is already provided internally). Opening the cover is for on-site operation.
Integrated regulation type: By introducing a regulation module on the basis of the integrated type, an integrated regulation type electric device is formed. Its electrical part consists of a regulation module, button box, opening meter (or digital indicator), contactor, etc. Can receive and output4-20mA standard signal.

four.DQW Partial Rotary Valve Electric DeviceWorking environment and main technical parameters
1. Power supply: Conventional, three-phase 380V (50Hz) special, three-phase 660V, 415V, single-phase 220V, 110V (50Hz, 60Hz)
2 Working environment:
Environmental temperature: -20~+60 ℃ (special orders -40~+80 ℃).
Relative humidity: ≤ 95% (at 25 ℃).
Protection type: Outdoor type used in places without flammable, explosive, and non corrosive media. Explosion proof products includeThere are two types, d Ⅰ and d Ⅱ BT4. d Ⅰ is suitable for non mining working faces in coal mines; DIIBT4 is used in factories and is suitable for explosive gas mixtures in environments of IIA and IIB levels T1 to T4. (See GB3836.1 for details)
3. Protection level: IP55 (special orders IP65, IP67)
4. Work schedule: Short 10 minutes (30 minutes for special orders)


Yangzhou Bell Valve Control Co., Ltd. specializes in productionPrecision small electric actuators, LQ series electric actuators, DKZ linear electric actuators, DKJ angular stroke electric actuators, DQW partial rotary electric actuators, DZW multi rotary electric actuators, 3810 series electronic electric actuators, electric valve controllers, electric gate valves, electric globe valves, electric butterfly valves, electric ball valves, electric control valves, check valves, solenoid valves, shut-off valves, are widely used in automation industries such as power, steel mills, petroleum, metallurgy, chemical, building, and water supply and drainage engineering.