Dongguan, China – August 28, 2026 — A certificate presentation ceremony was held at Dongguan Villo Technology Co., Ltd. on August 28 to mark the certification of Villo’s explosion isolation rotary valve.
Villo CTO and Head of Explosion Protection, Miao Nan, together with the company’s management team and technical specialists, attended the ceremony. Kristof, Head of Industrial Explosion Protection and Industrial Risk Assessment Services at TÜV SÜD Greater China, formally presented the EU CE-ATEX certification and Chinese explosion protection certificate to Villo.
The dual certification provides independent third-party recognition of the product’s explosion protection and explosion isolation performance, marking an important milestone in Villo’s continued development of internationally certified explosion protection solutions.
Why Explosion Isolation Matters
In industries that handle combustible dust, an explosion can spread from one piece of equipment to another through connected ducts, pipelines, or material-handling systems. Preventing this propagation is therefore a critical part of dust explosion protection.
Villo’s explosion isolation rotary valve is designed to serve as an isolation device in dust handling systems, helping prevent flames and pressure from propagating through the material discharge path in the event of an explosion.
Unlike conventional rotary valves, an explosion isolation valve must meet more demanding requirements for both mechanical design and explosion protection performance.
Engineering for Reliable Explosion Isolation
Achieving reliable explosion isolation requires precise control of the valve’s internal structure. Key factors such as rotor blade design, blade thickness, and the clearance between the rotor and housing affect both isolation performance and material handling capacity.
Clearances that are too large may increase the risk of flame propagation, while overly tight clearances can cause material blockage or interference and affect continuous operation.
Villo has therefore focused on balancing explosion isolation performance, material throughput, operational reliability, and manufacturing precision throughout the product development process.
From structural design and engineering analysis to prototype development, assembly, and testing, Villo has carried out systematic development and validation of the explosion isolation rotary valve.
Independently Tested and Certified by TÜV SÜD
Villo worked closely with TÜV SÜD throughout the certification process to evaluate the product against applicable European explosion protection requirements.
Under the European ATEX Directive 2014/34/EU and relevant standards, including EN 15089, TÜV SÜD conducted design reviews and type testing to assess the product’s explosion protection and explosion isolation performance.
Following multiple rounds of testing and assessment, Villo’s explosion isolation rotary valve successfully obtained both EU CE-ATEX certification and Chinese explosion protection certification.
The certifications provide customers with independent third-party verification when evaluating explosion protection equipment for combustible dust applications.
Villo’s Explosion Protection Portfolio
In addition to the certified explosion isolation rotary valve, Villo offers a comprehensive range of explosion protection products, including explosion vent panels, explosion isolation flap valves, flameless explosion vents, explosion suppression systems, spark detection and extinguishing systems, and explosion isolation pinch valves.
Based on specific process conditions and application requirements, Villo can combine these products to develop integrated explosion prevention and protection solutions tailored to the customer’s process and equipment.on
Supporting Customers in Global Markets
The certification further strengthens Villo’s capabilities in explosion protection and expands its offering for industries handling combustible dust.
For industries such as lithium battery manufacturing, chemical processing, grain and food processing, and pharmaceuticals, effective dust safety requires more than a single piece of equipment. Dust collection, conveying, filtration, material discharge, explosion venting, and explosion isolation all form part of a comprehensive protection strategy.
With its growing range of explosion protection products and dust collection solutions, Villo is positioned to support customers with equipment and integrated solutions for different combustible dust applications.
For Villo, this certification is another step forward in the company’s ongoing commitment to developing safer, more efficient dust collection and explosion protection solutions.
The company will continue to invest in product development, testing, and certification, with a focus on real-world industrial applications and international safety requirements, to serve customers around the world.
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