The main panel is a positive pressure chamber, containing the electrical components required by the user and the pressure sensing system, ventilation and air distribution system, and pressure regulating system required for explosion-proof; the auxiliary panel contains an. The main panel is a positive pressure chamber, containing the electrical components required by the user and the pressure sensing system, ventilation and air distribution system, and pressure regulating system required for explosion-proof; the auxiliary panel contains an. ◆ The shell is made of high-quality steel plate or stainless steel with sealed welding, compact structure, and beautiful appearance; ◆ The main chamber is a positive pressure chamber, containing the electrical components and pressure detection sensor system required by the user, gas distribution. The new EXpressure cabinets are revolutionising the science of explosion protection. They are equipped with grids made from stainless steel wire mesh in the walls through which pressure flows in the event of an explosion. Positive pressure explosion-proof control device is adopted with. Purging and pressurization is an explosion protection method (Ex p) that uses compressed air or inert gas to eliminate and prevent hazardous substances such as gas, dust, or a combination of the two, from entering the enclosure and causing a fire or explosion. Only after the specified ventilation time is reached, the power can be automatically transmitted, and there is a low-pressure automatic alarm and automatic air supply.