Vertical and Horizontal Stainless Steel Explosion Proof Pressure Cabinet - Application Range

● Suitable for hazardous areas 1 and 2 explosive gas environments

● Suitable for IIA, IIB, IIC explosion-proof gas environments

● Suitable for combustible dust environments in zones 20, 21, and 22.

●Suitable for environments in temperature groups T1-T6.

This product is suitable for factories in various industries such as petrochemicals, offshore drilling platforms, metallurgy, light industry, textiles, winemaking, paints, coatings, food, biotechnology, aerospace engineering, and hazardous chemical storage facilities.

Features of Vertical and Horizontal Explosion-Proof Stainless Steel Pressure Vessel Cabinets

The product housing is made of steel plate welding or stainless steel welding, with a surface treated by high-speed shot blasting followed by powder electrostatic spraying, ensuring a beautiful appearance.

This product is an improved explosion-proof model from "Zhongtong Electrical," which can be installed with various standard detection, analytical, and display instruments, transformers, soft starters, inverters, PLCs, buttons, switches, microcomputer touchscreens, and general electrical components, without any restrictions on the electrical components required by the user.

● Available in various designs, including cabinet style (up-down, left-right), wall-mounted, music stand, flat, etc.

●The distribution cabinet consists of the cabinet body, control system, gas distribution system, alarm system, and power distribution system; the positive pressure chamber is equipped with explosion-proof components of part of the control system and the user's power distribution system components (also available in split or integrated configurations as per customer requirements).

The cabinets on both sides feature a ventilation type of air intake, which means a continuous, uninterrupted supply of air. The working heat of the components inside the positive-pressure chamber can be carried away through the airway, providing excellent heat dissipation effects.

This product is designed, manufactured, and inspected in accordance with GB3836.1-2000, GB3836.5-2004, and relevant standards.

● Under the control of the automatic control system, the protective gas is introduced into the pressure chamber, where the pressure inside is higher than that outside, creating a micro-positive pressure safe environment. This prevents flammable hazardous gases from entering the pressure chamber, ensuring the safe operation of the general instruments and electrical components inside. The automatic control system primarily handles functions such as air exchange, gas replenishment, ultra-high pressure automatic alarm, exhaust, under-pressure alarm, and low-pressure interlock shutdown. (This pressure chamber features a low-pressure interlock function, automatically cutting off the user's power distribution source to the pressure chamber when the pressure falls below the specified value (50Pa), further enhancing the product's safety and practicality.)

● External protective doors can be installed upon customer request, capable of displaying or indicating internal control functions.

All fasteners are made of corrosion-resistant 304 stainless steel.

Cabling methods available include steel pipes, cables, or explosion-proof hoses.

● Available for special customization to meet customer requirements.

● Ventilated and compensated types based on the air intake method. Ventilated type provides continuous gas supply, allowing the working heat of the components in the positive pressure chamber to be carried away by the gas circuit, offering excellent heat dissipation and suitable for solving the heat dissipation issues of high-power explosion-proof frequency converters; Compensated type supplies gas intermittently, requiring good sealing of the positive pressure chamber to ensure minimal gas consumption.

● Users must provide a gas source, which should be: purified air or nitrogen, with a pressure of 0.2～0.8Mpa; typically, the instrument air at the user's site can meet the requirements.

The Zhongtong Intelligent Positive Pressure Explosion-Proof Distribution Box is mainly composed of the cabinet, automatic control system, gas distribution system, alarm system, and power distribution system; the cabinet consists of a positive pressure chamber and a secondary chamber, with the positive pressure chamber housing the user's power distribution system components and the secondary chamber housing the automatic control system.

● Cabinet products are constructed with GGD or German craftsmanship cabinets, featuring a left-right structure for the main and auxiliary trays. They are installed with cable channel bases, with incoming lines at the bottom and operations through the front door, and maintenance via the back door.

● Box-type products feature steel plate welded construction, with the main and auxiliary disks in an up-down configuration, hung for installation, bottom entry, front door operation, and maintenance.

● The piano stand-style products are made by steel plate folding and welding, with the main and auxiliary plates in a front and rear structure, mounted in a pedestal style, bottom entry line, piano stand operation, and rear door for maintenance.

●Steel plate materials generally use GB710-88 cold-rolled steel plate, or stainless steel material GB3280-84 can be selected according to customer requirements.