Explosion-proof Rotary Valve for Sale
The explosion-proof rotary valve is a special equipment designed on the basis of the ordinary star-shaped discharger for explosive dust or gas environments. Its core function is to ensure continuous material conveying and air-tightness while guaranteeing operational safety.
The explosion-proof rotary valve overcomes the safety issues of material discharge in flammable and explosive environments through the use of a dedicated motor, multiple seals, anti-static materials, and explosion-proof structural optimization. When selecting the model, it is essential to pay close attention to the explosion-proof certification level and the compatibility with the working conditions.
- Explosion-proof Motors
- Anti-static Material
- Certification
Using explosion-proof motors that comply with the GB3836 standard (equivalent to the international IECEx standard).
- Explosion-proof type (Ex d): By reinforcing the casing to withstand the internal explosion pressure and prevent the spread of flames outward;
- Intrinsic safety type (Ex ia/ib): Limiting the circuit energy and eliminating the risk of ignition by electric sparks.
- The impeller and the casing are made of conductive materials such as stainless steel or titanium steel to prevent the accumulation of static electricity.
- Isolation design for bearings and transmission components to prevent the generation of friction sparks.
- Domestic project: GB3836 explosion-proof certificate (Ex d IIB T4 or Ex ia IIIC T135°C);
- International projects: IECEx or ATEX certification.
Chemical industries, food processing, metallurgy, etc. have working conditions where there are flammable dusts (such as coal dust, aluminum powder, starch) or combustible gases.
It supports both forward and reverse operation. However, it is necessary to ensure that the materials do not contain large particles or foreign objects to avoid jamming the motor.
Install overload protection devices to prevent the equipment from getting stuck or the motor from burning out due to sticky materials or foreign objects.