QT4 Ex JS Explosion Proof Part Turn Electric Actuator
AC 220V, AC380V
Part-Turn Actuator
Explosion-proof
QT4 Ex JS Explosion Proof Part Turn Electric Actuator Product Information
QT4 Ex JS explosion proof part turn electric actuator is suitable for ball valve, butterfly valve and air door. It is combined by QT4 Ex part turn electric actuator and JS part turn reducer. It is the new generation upgrade valve electric actuator. It is die-casting aluminum, which features with small size, nice appearance, light weight, high efficiency, high reliability, high protection, low noise. It can be operated on site or remote control. QT4 Ex/JS explosion proof part turn electric actuator is used widely in the field of petroleum, chemical, power plant, water treatment, paper making. QT4 Ex/JS explosion proof part turn electric actuator protection class is IP67, and IP68 can be produced especially. We can produce QT Integral (QT.IN), QT Integral Modulating, QT Explosion proof (QT.Ex (ExdIIBT4) and QT Integral Explosion proof (QT.Ex.IN) according to the customer’s requirements. Flowspec Luokai can manufacture and supply the QT4 Ex JS explosion proof part turn electric actuator with voltage of AC220V-1Ph-50Hz, AC380V-3Ph-50Hz. Contact us today. Get the better prices. 30 years of experience. Great after-sales service.
1. FEATURES
- Small volume
- Nice appearance
- Light weight
- High efficiency
- High reliability
- High protection
- Low noise
2. TECHNICAL SPECIFICATIONS
- Model: QT4 Ex./JS
- Voltage: AC220V-1Ph-50Hz, AC380V-3Ph-50Hz
- Power: 0.01kW ~ 0.2kW
- Protection class: IP67 or IP68
- Rotary angle: 0 ~ 90°
- Materials: aluminium die-casting
- Explosion class: Ex dII BT4
Why Choose Flowspec Luokai
45+ Years Experience
Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.
Global Certifications
ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.
OEM Custom Solutions
Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.
Worldwide Delivery
Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.
Our Service Promise
Strict Quality Control
Every valve tested to API 598, EN 12266 before shipment
Timely Global Delivery
Reliable logistics to 5 continents with secure packaging
OEM & Custom Design
Tailored material, size, pressure and actuation to your specs
Dedicated After-Sales
Technical support and service throughout product lifecycle


