This explosion-proof material for large fuel tanks offers a "purely physical, passive" defense solution. It operates independently of electronic systems, utilizing a dense internal mesh structure to subdivide the large interior volume of a storage tank into countless tiny, honeycomb-like cells. Should an ignition source appear, any resulting flame is instantly cooled (quenched) and extinguished as it travels through the sphere's narrow channels, while pressure is gradually released through micropores-thereby fundamentally preventing the generation of an explosive shockwave. It is ideally suited to serve as foundational safety infrastructure for facilities involved in the storage and transport of a wide range of standard chemicals at ambient temperatures.

Products Specifications

Parameter	Specifications
Product Material	Modified high-polymer engineering plastic (non-metallic; contains conductive additives)
Appearance/Structure	Black, open-structure, polyhedral mesh framework
Unit Diameter	Standard sizes: 30mm / 40mm / 50mm
Volumetric Fill Ratio	≤ 5% (exceptionally high effective volume retention)
Applicable Media (Standard)	Gasoline, diesel, aviation kerosene, methanol, ethanol, etc.
Custom Chemical Compatibility	Corrosion-resistant formulations available for benzenes, alcohols, ethers, acetone, toluene, propylene oxide, etc.
Standard Temperature Range	-30°C to +120°C
Special Specifications	Stainless steel-based explosion-proof structure available as an option for LNG (Liquefied Natural Gas, -162°C)
Standard Warranty Period	1 year

Product Features

Corrosivity varies drastically depending on the solvent; general-purpose plastics are unsuitable for handling substances like acetone or ethers. For specialized chemicals, we offer custom formulations tailored to the solvent's chemical properties - such as modified polyurethane-based materials specifically designed for acetone resistance - ensuring the spheres neither dissolve nor swell when exposed to aggressive solvents.

Whether utilized in marine cargo vessels, road tankers, or specialized air-freight containers, the material provides an effective physical barrier. It also complies with the Chinese national standard GB 50156 regarding the design and construction of gas stations.

It works in tandem with inert gas systems (nitrogen blanketing) to provide dual-layer protection. Underground gas station tanks face critical risks of static-induced flash explosions caused by vapor leaks during unloading, while large refinery floating-roof tanks are vulnerable to lightning strikes and operational errors. Integrating this material with existing nitrogen blanketing systems elevates safety standards and significantly mitigates the risk of catastrophic fires.

The formulation maintains stable performance across a temperature range of -30°C to +120°C. It requires no special maintenance under standard operating conditions and withstands seasonal temperature fluctuations encountered by most land-based gas stations, refineries, and transport vehicles without softening or becoming brittle.

Product display

Product Advantages

Inherently safe and zero-energy: Free from complex electronic components, there is no risk of losing explosion-proof functionality due to power outages or sensor failures. It offers a highly cost-effective passive safety solution that meets stringent regulatory requirements for hazardous chemical management.

Significant suppression of VOC emissions: The spheres form a physical covering layer on the liquid surface, drastically reducing the evaporation area of volatile liquids (particularly light petroleum products, methanol, and ethanol). This serves not only safety purposes but also acts as an effective measure to comply with strict overseas environmental emission standards.

Highly versatile with no-modification installation: Suitable for refined fuel tanks, military fuel depots, underground vertical tanks, and even fuel compartments on trains or cargo ships; installation simply requires pouring the spheres in through the manhole, with no need to alter the internal structure of the existing container.

No media contamination or equipment clogging: Made from specially modified materials, the spheres do not dissolve, swell, or shed debris during long-term immersion in various liquid hydrocarbons and common solvents. They do not clog fuel pump filters, fundamentally eliminating the maintenance burden associated with cleaning tank bottoms.

Product Applications

Production Process

Raw material selection

Screen high-quality alloy plates and polymer particles, and conduct strict performance testing

Forming processing

Adopt automatic equipment to make honeycomb/hollow structure through pressing and foaming

Precision treatment

Cut and polish the semi-finished products to ensure the consistency of size and structure

Quality inspection

Carry out explosion suppression, corrosion resistance and high temperature resistance tests on finished products

Packaging and storage

Classify and package qualified products to avoid damage during transportation

Customization Options and After-Sales Service

Customized Chemical Formulations: We match specific modified polymer formulations (e.g., acetone-resistant polyurethane) to the specific chemicals you handle (such as acetone, toluene, or propylene oxide) to ensure absolute corrosion resistance.

Customized Dimensions and Colors: While standard diameters range from 30–50 mm, we offer custom sizes between 20 mm and 100 mm to fit various manhole openings; we also support custom identification colors such as blue or yellow.

Warranty: 1-year warranty. We guarantee a free replacement if swelling, cracking, or severe material shedding occurs due to causes other than external impact during normal immersion use.

Professional Selection Support: Simply provide your chemical composition list, and we will offer free online technical consultation on chemical compatibility to ensure the material is 100% suitable for your application.

Bulk Order Delivery Guarantee: For large-scale orders from facilities like refineries and terminals (typically starting at a 40-foot container load), we provide an expedited delivery schedule of approximately 15 working days. Each shipment includes an independent inspection report and guidance on maritime logistics tailored for lightweight, high-volume cargo.

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