Liquid phase cut-off valve inflatable explosion-proof positive pressure cabinet

Scope of application:

1. Applicable to Zone 1 and Zone 2 based on the frequency and duration of explosive gas environments.
2. According to the explosive gas mixture test safety gap or Z-small ignition current ratio applicable to electrical equipment sites, applicable to IIA, IIB, IIC, and T1-T5 according to their Z-high surface temperature
3. According to the classification of hazardous areas containing explosive dust, it is applicable to Zone 20, Zone 21, and Zone 22.
4. Suitable for environments containing flammable and explosive gases, such as oil extraction, storage, chemical, pharmaceutical, military industrial facilities, etc.

Product features:

1. There are two types of combinations for the main and auxiliary cabinets: upper and lower, and left and right. The main cabinet is a positive pressure sealed chamber with front and rear doors and an observation window on the front. The auxiliary cabinet is mainly equipped with a positive pressure air circuit control system.
2. It has the functions of automatic ventilation before startup, ventilation delay, automatic air supply, and automatic control of positive pressure range.
3. The operation is simple and convenient, and after ventilation, it enters a positive pressure operating state.
4. It has positive pressure protection (upper and lower limits), sound and light alarm, automatic power-off at the critical lower limit of positive pressure, and power-off when opening the door. Emergency manual power-off and other safety interlock protection functions.
5. Cable compression type introduction device.

6. Various instruments and frequency converters can be installed inside the product, PLC、 Soft starter, touch screen, computer control system, can achieve local and remote control.

Technical parameters:

1. Control power supply: 220V 380V AC
2. Operating positive pressure value of 150Pa-900Pa (>900Pa automatic exhaust,< 150Pa automatic air supply
3. Critical positive pressure value:> 1000Pa manual exhaust ＜ 70Pa automatic power cut-off
4. Gas source: clean air and protective gas with a pressure not less than 0.4Mpa
5. Explosion proof mark: ExpzdeibIIB T5 Gc ; ExpzdeibIIC T5 Gc
6. Shell protection level: IP65

Liquid phase cut-off valve inflatable explosion-proof positive pressure cabinet