Double-layer stainless steel explosion-proof positive pressure cabinet, insulated and heat-preserving positive pressure explosion-proof cabinet

Application scope of positive pressure purging control system for explosion-proof positive pressure cabinet

1. Hazardous locations with explosive gas mixtures: Zone 0, Zone 1, Zone 2.

2. Explosive gas mixtures: IIA, IIB, IIC.

3. Temperature class: T1 to T6.

4. Indoor, outdoor (IP55)

5. Combustible dust environments Zone 20, Zone 21, Zone 22

6. Corrosion resistance level: WF1

7. Suitable for explosive hazardous environments such as petroleum and petrochemical, chemical, brewing, pharmaceutical, paint, textile, printing and dyeing, military facilities, etc.;

Property: Under specified test conditions, the ratio of the minimum ignition current of a gas or vapor explosive mixture to the minimum ignition current of a methane explosive mixture. In China, hazardous gases and vapors are classified into IIA, IIB, and IIC levels based on the minimum ignition current ratio. A minimum ignition current ratio ≤1.0 and >0.8 is classified as IIA; ≤0.8 and >0.45 as IIB; ≤0.45 as IIC. For example, ethane, ethylene, and acetylene are classified as IIA, IIB, and IIC hazardous substances, respectively.