The explosion-proof ultraviolet sterilizer is a low-flow disinfection device specifically designed for flammable and explosive environments. It is equipped with one 80-watt high-efficiency ultraviolet lamp, has an overall length of 900mm, and uses an explosion-proof quick-connect interface, fully complying with the Ex d ⅡB T4 Gb explosion-proof standard.
Product Description
The explosion-proof UV sterilizer is a high-performance ultraviolet disinfection system specifically engineered for hazardous environments where flammable gases, vapors, or dust may exist. Designed for continuous in-line treatment, it ensures safe and efficient microbial control without introducing chemicals into the process system.
As a critical solution for industrial water treatment and process safety, this explosion proof UV sterilizer is widely used in chemical plants, oil & gas facilities, pharmaceutical production, and other high-risk zones requiring reliable hazardous area UV disinfection. It integrates seamlessly into pipeline systems, offering non-chemical, eco-friendly sterilization while maintaining operational safety standards.
● Compliant Explosion-Proof Design: The entire unit is certified to Ex d IIB T4 Gb explosion-proof standards. The cavity is constructed of 304 stainless steel with an explosion-proof structure (wall thickness ≥6mm), capable of withstanding an explosion pressure of 0.4MPa. Electrical components (ballast, junction box) are explosion-proof, and all gaps are filled with explosion-proof sealant to prevent electrical spark leakage. Cable interfaces are equipped with explosion-proof glands to prevent flammable gases from entering the equipment, making it suitable for environments with Class IIB flammable gases such as methane and propane.
● High-Efficiency Sterilization with Low Flow Rate: One 80-watt low-pressure UV lamp forms a uniform radiation zone within a 900mm cavity. Combined with a flow-guiding structure, this ensures sufficient contact between the water flow and UV light (residence time ≥8 seconds), achieving a kill rate of ≥99.9% against E. coli, Salmonella, and influenza viruses. With a processing flow rate of 1-3 m³/h, it perfectly matches the disinfection needs of low-flow water use in explosion-proof areas (such as equipment cleaning and localized cooling). Explosion-proof quick-connect for convenient installation: Utilizes explosion-proof certified quick-connect interfaces (compatible with DN32-DN40 pipes). The interfaces feature built-in double-layer oil-resistant explosion-proof sealing rings. Simply align the clips and rotate to lock them in place. Installation/disassembly can be completed by a single person within 3 minutes, requiring no welding or threaded tightening, avoiding mechanical sparks in explosion-proof areas and simplifying the equipment disassembly and assembly process for later maintenance.
● Durability in harsh environments: The 304 stainless steel housing is resistant to acid and alkali corrosion (suitable for water with pH 4-9). The surface is treated with anti-static spraying (surface resistance ≤10⁸Ω) to prevent dust accumulation and static electricity generation. With an IP66 protection rating, it can withstand the moisture and dust commonly found in explosion-proof areas. The lamp life is ≥8000 hours, reducing the safety risks associated with frequent replacements.
● Dual Safety Protection: An integrated explosion-proof door interlock device automatically cuts off power when the chamber cover is opened, preventing UV leakage and electrical sparks. The ballast features over-temperature (≥75℃) and over-current protection, immediately shutting down in case of abnormalities. Combined with an explosion-proof observation window (tempered borosilicate glass), the lamp status can be checked without opening the cover, further reducing operational risks.
● Explosion-proof Environment Disinfection: The 80-watt lamp emits 253.7nm ultraviolet light to disinfect water with a flow rate of 1-3m³/h within the explosion-proof chamber, killing microorganisms. The treated water can be used for localized equipment cleaning and floor wiping in explosion-proof areas, preventing equipment malfunctions or product quality issues caused by microbial contamination.
● Explosion-proof Quick-connect Connection: The quick-connect interface allows for tool-free sealing connection to pipes. The explosion-proof sealing ring at the interface withstands 1.0MPa water pressure and meets explosion-proof gap requirements (≤0.15mm), ensuring a secure, leak-free connection while preventing mechanical sparks during installation, suitable for rapid construction needs in explosion-proof areas.
● Safety Status Monitoring: An explosion-proof observation window (pressure ≥1.0MPa) allows for direct monitoring of the lamp's illumination status. Explosion-proof indicator lights on the ballast box (red for operation, green for fault) provide real-time feedback on equipment status. Dual mechanisms of door interlocking and over-temperature protection ensure immediate disconnection of the risk source in case of equipment malfunction.
● Adaptability to Confined Spaces: Its streamlined 900mm length and compact structure allow for installation in confined areas such as gaps between explosion-proof equipment and pipe corners, without requiring additional explosion-proof space. Suitable for space-constrained scenarios such as petrochemical plant areas and localized water usage points in pharmaceutical workshops.
Compared with traditional chlorination or ozone systems, UV sterilization eliminates chemical handling risks and avoids by-product formation. Our system is specifically optimized for industrial safety requirements, ensuring stable performance even under extreme working conditions.
The unit is designed with reinforced quartz sleeves, corrosion-resistant stainless steel chambers, and explosion-proof electrical enclosures. These features make it ideal for industries where safety compliance is non-negotiable.
● Petrochemical Plant Areas: Installed in the gaps between explosion-proof equipment in refineries and chemical plants for disinfecting localized cleaning water and cooling water, preventing microbial blockage of pipes or corrosion of equipment. Suitable for environments containing flammable oil and gas.
● Pharmaceutical Explosion-Proof Workshops: Used for disinfecting localized cleaning water (such as rinsing workbenches and preliminary cleaning of equipment) in raw material production workshops, meeting GMP requirements for microbial control of pharmaceutical water while also complying with electrical safety regulations for explosion-proof areas.
● Spray Painting/Ink Plant: In explosion-proof areas of spray painting production lines and ink mixing rooms, disinfect water used for cleaning spray guns and tools to prevent coating defects caused by microorganisms in the water. The equipment's anti-static design avoids safety risks posed by paint dust.
● Natural Gas Processing Station: Installed on domestic water branch pipes or equipment cooling water pipes in natural gas purification areas, it disinfects small-flow water bodies, adapting to the potentially hazardous environment of natural gas leaks and ensuring water and production safety.
● Grain Processing Explosion-Proof Area: Used in explosion-proof workshops of flour mills and feed mills to disinfect water used for cleaning equipment, preventing mold growth and contamination of grain products, and adapting to dust explosion hazards.
● Installation Specifications: Installation must be performed by personnel with explosion-proof electrical installation qualifications. Before installation, confirm that the area has been degraded to a non-hazardous state (or explosion-proof measures have been taken);
● Equipment must be reliably grounded (grounding resistance ≤ 4Ω). After connecting quick-connect interfaces, check the sealing rings for integrity to ensure no gas leakage;
● Avoid installation near fire sources, high-temperature pipelines, or locations subject to severe vibration to prevent damage to the explosion-proof structure.** Operational
● Safety: Do not touch the equipment casing during operation (normal operating temperature rise is possible), and do not open the chamber cover or ballast box; Observe the lamp status through the explosion-proof observation window; do not use tools to pry open the interfaces or sealing components; In case of emergency shutdown, first disconnect the upstream power supply, then close the water inlet valve, and avoid pressurized operation.
● Maintenance Prohibitions: Maintenance must be carried out in a well-ventilated area after confirming the absence of flammable gases/dust, and explosion-proof tools (such as brass wrenches) must be used; Wear anti-static gloves when replacing lamps to avoid contaminating the quartz glass with oil from your hands. After installation, check that the explosion-proof seal is intact; Clean the quick-connect interface sealing rings quarterly. If aging or deformation occurs, replace them with explosion-proof special sealing rings immediately; do not use ordinary rubber rings as substitutes.
● Pretreatment Requirements: Raw water must be filtered through a 10μm precision filter, with turbidity controlled to ≤2NTU; otherwise, impurities in the water will block ultraviolet rays and accelerate lamp contamination; High-salt or highly corrosive water bodies must be pre-treated to prevent corrosion of the chamber or interfaces, which would affect the explosion-proof performance.
| Parameter | Specification |
| Lamp Power | 80W (Low-pressure mercury lamp) |
| UV Wavelength | 253.7nm ±5nm |
| Sterilization Rate | ≥99.9% (against E. coli) |
| Treatment Flow Rate | 1–3 m³/h - Original: 1-3m=/h |
| Lamp Lifespan | ≥8,000 hours (decay to 70% of initial intensity) |
| Explosion-proof Rating | Ex d II B T4 Gb |
| Working Pressure | 0.8MPa |
| Operating Temperature | Ambient: -20–40°C; Water: 5–40°C |
| Power Supply | AC 220V ±10%, 50Hz |
| Ballast Power Consumption | ≤90W |
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This product is part of our advanced Pipeline UV Sterilizer system portfolio, allowing seamless integration into existing water treatment pipelines. It supports both horizontal and vertical installation, ensuring flexibility for complex industrial layouts.
Q1: What makes this UV sterilizer explosion-proof?
A: It uses certified explosion-proof electrical components and sealed enclosures designed to prevent ignition in hazardous environments.
Q2: Can it replace chemical disinfection systems?
A: Yes, it provides effective microbial control without chemicals, reducing operational risks and environmental impact.
Q3: Is it suitable for all pipeline systems?
A: It is compatible with most industrial pipeline configurations and can be customized based on flow rate and pressure requirements.
Upgrade your process safety with a reliable explosion-proof UV sterilizer designed for demanding industrial environments. Improve water quality, reduce chemical usage, and ensure compliance with global safety standards.
Contact us today to get a customized solution for your pipeline disinfection needs and explore our full range of UV systems.
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