Tovent | Professional Integrated Solutions for Petrochemical Explosion-proof Electrical Products
Tovent devotes to explosion-proof electrical industry. Supported by high-tech R&D strength and standardized production systems, we launch five general explosion-proof products for petrochemical industry. We provide one-stop supply of full-range accessories for circuit protection, loop switching, lighting control and on-site operation. With complete certifications, stable performance and perfect customization services, we deliver safe and reliable explosion-proof electrical supporting services for global petroleum, chemical and oil-gas clients.
Explosion-proof Protection・Safe Production: Adapt to All Kinds of Petrochemical High-risk Conditions
Focusing on complex high-risk conditions such as flammable gas, corrosion and dust in petrochemical industry, Tovent’s full-range explosion-proof switches, circuit breakers and push buttons are optimized in structures and materials.
All products pass multiple tests in line with domestic and international explosion-proof standards. Taking safety as the core, we protect production safety of chemical plants, oilfields and terminals with reliable products and help enterprises operate stably and efficiently.
Opciones de personalización

We customize housings with cast aluminum, stainless steel and engineering plastic for chemical & oilfield hazardous areas. Adjust protection grades to adapt to corrosive, humid and dusty working conditions and meet various explosion-proof zone standards.

Additional modules like overload protection, leakage protection and signal feedback are customized for circuit breakers and switches. They match intelligent scenarios such as automated production lines and central control systems.


Multiple installation structures including wall-mounted, guide rail, embedded and floor-standing types are customized. They fit chemical pipe galleries, machine rooms, explosion-proof cabinets and outdoor oil & gas platforms.
BDZ Type Explosion-proof Automatic Air Switch
BDZ series explosion-proof circuit breakers are dedicated power distribution protection devices for high-risk petrochemical scenarios with overload and short circuit dual protection. It cuts off power quickly when circuit faults occur to prevent accident spread. Adopting standard flameproof structure with tight sealing, it isolates sparks from flammable gas. Suitable for refineries, oil & gas tank areas and coal chemical plants, it builds a solid safety line for industrial power distribution.


(B/C)BHZ51 Type Explosion-proof Conversion Switch
Aiming at complex conditions like dust, humidity and corrosion in petrochemical industry, Tovent BDZ explosion-proof circuit breakers provide cast aluminum and stainless steel housings. With high protection grades, it runs stably outdoors and in underground pipe galleries for a long time. Multiple voltages and explosion-proof grades are optional with customization support. Easy to install and maintain, it is widely used in petrochemical production, storage and transportation scenarios.
SW-10 Series Explosion-Proof Illumination Switch
(B/C)BHZ51 series explosion-proof change-over switches feature multi-gear circuit switching and are designed for continuous petrochemical production lines. The precise mechanical transmission ensures smooth switching without electric arc leakage. It is used for main and auxiliary equipment circuit switching, grouped water pump control and central signal scheduling, becoming an indispensable control accessory for chemical workshops, oil platforms and petrochemical pump houses.


LA53 Explosion-proof Control Button
LA53 series are manufactured in strict accordance with national explosion-proof standards. Internal contacts are completely isolated from external environments to prevent flammable gas from being ignited by electric sparks. With excellent insulation and voltage resistance, it eliminates electric leakage risks. Widely used in major domestic petrochemical projects for years, it is recognized by many on-site operators for stable safety performance.
LA5821 Explosion-proof Control Button
LA5821 series are explosion-proof push buttons specially made for strong corrosive conditions such as acid, alkali, salt mist and waste gas washing. Made of anti-corrosion materials with special surface treatment, it resists acid-base vapor and corrosive dust for a long time. Widely used in acid-base workshops, electroplating plants and coastal petrochemical bases, it solves the problem that ordinary buttons are easily damaged by corrosion.

Petrochemical Explosion-proof Switches: Safety Guardians for Hazardous Working Conditions


Explosion-proof electrical products are special industrial equipment, and certifications are core proof of safety. Tovent’s five petrochemical dedicated products have passed 3C compulsory certification, explosion-proof certificates and management system certifications, fully complying with domestic petrochemical safety standards. As a high-tech enterprise with dozens of patents, we iterate products continuously to improve explosion-proof performance, operation experience and service life. Our products meet high-end industrial standards and are designated supporting products for many large domestic petrochemical projects.
The petrochemical industry has multiple harsh conditions including flammable gas, corrosion, dust and extreme temperatures. Ordinary electrical accessories age and fail quickly, bringing hidden dangers. Tovent’s five explosion-proof products are optimized in materials, structures and sealing technologies. Stainless steel housings resist acid and alkali; fully sealed structures prevent dust and water; flameproof chambers isolate sparks and flammable gas. The products operate stably from -40℃ to +40℃, suitable for low-temperature oilfields, humid chemical areas and coastal salt mist plants.
Application of Explosion-proof Accessories for General Petrochemical Scenarios
Petroleum Refining Plants:Suitable for refineries and tank farms to ensure electrical safety.
Chemical Workshops:Applied in chemical lines for equipment control and circuit protection.
Oil & Gas Drilling Platforms:Used in onshore and offshore oil & gas hazardous areas.
Hazardous Chemical Warehouses:Control warehouse lighting and electrical devices to avoid risks.
Petrochemical Terminals:Ensure stable power supply and control for terminal facilities.
Coal Chemical Parks:Serve coal chemical lines and machine rooms against circuit faults.
Underground Pipe Galleries:Fit confined humid galleries for power and lighting control.
Explosion-proof Control Rooms:Applied in control rooms for circuit switching and equipment operation.
Explosion-proof Accessories
Alternative Names
BDZ explosion-proof automatic air switch:Explosion-proof circuit breaker for petrochemical/Chemical plant overload protection switch/Oilfield short circuit protector/Flameproof air switch/IIB explosion-proof circuit breaker/IIC explosion-proof circuit breaker/Outdoor explosion-proof circuit breaker/Corrosion resistant circuit breaker/Low voltage explosion-proof breaker
BHZ51 explosion-proof change-over switch:Petrochemical multi-gear switch/Chemical plant circuit switching switch/Oil platform explosion-proof switch/Flameproof transfer switch/Explosion-proof loop switch/IIB explosion-proof change-over switch/IIC explosion-proof transfer switch/Workshop circuit selector switch/Explosion-proof gear switch/Refinery control switch
SW-10 explosion-proof lighting switch:Petrochemical explosion-proof lamp switch/Chemical workshop light switch/Oilfield explosion-proof lighting controller/Flameproof light switch/Warehouse explosion-proof light switch/Pipe gallery lighting switch/Outdoor explosion-proof light switch/Explosion-proof emergency light switch/Refinery street lamp switch
LA53 explosion-proof control push button:Petrochemical explosion-proof button/Chemical workshop start stop button/Oilfield explosion-proof push button/Flameproof control button/Explosion-proof emergency stop button/Reactor control button/Pump station explosion-proof button/Fan room control button/Refinery on-site button/IIB explosion-proof push button
LA5821 explosion-proof control push button:Anti-corrosion explosion-proof button/Acid-base workshop push button/Salt mist resistant control button/Marine petrochemical explosion-proof button/Corrosive environment flameproof button/Waste gas treatment control button/Electroplating workshop explosion-proof button/Flameproof anti-corrosion push button
Explosion-proof product customization:Explosion-proof switch material customization/Circuit breaker voltage customization/Explosion-proof grade customization/Control button function customization/Switch installation method customization/Explosion-proof equipment marking customization/Flameproof housing customization/Explosion-proof switch module customization












