Tovent | Professional Dust Explosion Protection for Industrial Safety

With years of experience in dust explosion protection, Tovent integrates R&D, production, customization and services. Our full range of venting, isolation and suppression devices are fully certified and customizable for woodworking, chemical, grain and lithium battery industries. We build all-round dust safety systems for global industrial workshops with professional technology and reliable quality.

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Tovent Explosion Protection & Suppression Solutions

For powder processing enterprises, the most critical step in achieving explosion safety is to implement protective measures to minimize damage caused by explosions. It is essential to protect the plant from explosions at all times to ensure employee safety and enable quick production resumption. After all, every minute of production downtime translates to economic losses.In most cases, explosion safety can be provided cost-effectively through venting, isolation, and suppression measures.
We are pleased to present customized dust explosion protection solutions tailored to your specific operational conditions.
Tovent explosion safety solutions are divided into two core categories:
  1. Dust Explosion Protection: This includes three types of key equipment: explosion vent panels, explosion isolation valves, and flameless explosion venting devices, designed to mitigate explosion effects through venting and isolation.
  2. Suppression & Extinguishing: This covers explosion suppression systems and spark detection and extinguishing systems, which intervene early to suppress the occurrence and spread of explosions.
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Dust Explosion

A dust explosion happens when suspended combustible dust ignites in closed spaces, spiking temperature and pressure. It requires five conditions: flammable dust, ignition sources, confined areas, oxidants and explosive dust concentration. Ignited dust spreads heat to surrounding particles for cyclic combustion, accelerating reaction speed exponentially and generating powerful blast waves with catastrophic damage.

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Why Explosion Isolation Is Critical

In practical production, vessels and silos are interconnected via pipelines, pneumatic conveyors, dust collectors and exhaust ducts. When a dust explosion occurs, flames and pressure shockwaves travel through pipelines to other workshop equipment. Pre-compression of blast waves and flame jets intensify explosions in connected vessels, triggering successive secondary explosions that lead to severe catastrophic damage.

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Active & Passive Explosion Isolation Systems

Explosion isolation systems fall into two categories: active and passive. Passive isolation devices activate directly upon explosion; their structural design blocks the propagation of flames and pressure waves. Active isolation systems are triggered by monitors or sensors that detect pressure spikes or flame signals, then initiate protective actions such as valve shut-off.

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Options de personnalisation

High-Strength
Size Customization

We customize rectangular, circular and other full-size products for dust collectors, silos and pipelines, fitting DN100-DN1000 pipelines and industrial equipment installation.

Quality Packaging
Material Customization

We offer 304/316 stainless steel, carbon steel and Teflon composite materials for high-temperature, corrosive and humid industrial environments.

Nontoxicity
Structure Customization

Flat single-layer, composite and arch structures are customized to meet demands of vacuum resistance and ultra-high pressure venting.

Unique Design
Fitting Customization

Flanges, vacuum brackets and maintenance ports are customized for indoor, outdoor, horizontal and vertical installation.

Flameless Explosion Venting Device

After installing the flameless explosion venting device, flames will be rapidly cooled and fully extinguished when passing through the wire mesh flame arrester, preventing any flame jet or pressure shockwave from escaping. Meanwhile, pressure surges and noise generated inside production facilities are minimized.

This flameless vent offers dust explosion protection for both indoor and outdoor installations. Custom sizes are available to match RAS/RA/RDS/RD series bursting discs. It features zero operating cost and simple installation.

 

DR Rupture Disc

Tovent DR rupture discs range from 150 to 910mm with carbon steel and stainless steel materials for St1-St3 combustible dust. Pass EN16009 flame test and Abaqus explosion simulation, customizable 0.01–0.1MPa burst pressure. Zero operating cost, instant pressure relief cuts explosion peak pressure. Fit dust collectors, silos and cyclones with complete test certificates to pass safety inspection.

Wood, flour and metal workshops face severe dust deflagration risks. Tovent DR rupture disc adopts power-free mechanical design to release blast waves instantly and avoid tank rupture. Stainless steel type resists solvent and salt fog with wide temperature adaptability. Full sizes match FVDS flameless vents to form full vent system, maintenance-free to cut long safety cost.

FVDS Flameless Explosion Venting Device

 

Technical Specifications

Material: 304 stainless steel /carbon steel

Size range: 150 ~ 910 mm, custom special dimensions available

Avantages

  • Effectively reduces noise levels
  • Zero operating cost
  • Delivers comprehensive surrounding protection
  • Equipped with integrated inspection access for easy maintenance
  • Direct retrofitting compatible with existing bursting discs
  • Delivers maximum venting efficiency via full flameless relief structure
  • The flame arrestor design prevents any flame or combustible material ejection that could harm personnel. It mitigates catastrophic explosion hazards and provides top-tier safety protection for on-site staff.

FVDC Flameless Explosion Venting Device

Technical Specifications

Material: 304 stainless steel /carbon steel

Size range: 150–910 mm, custom special dimensions available

Avantages

  • Effectively reduces noise levels
  • Zero operating costs
  • Provides comprehensive surrounding protection
  • Equipped with an integrated inspection port for convenient maintenance
  • Directly retrofittable to existing bursting discs
  • Delivers maximum venting efficiency with full flameless pressure relief structure
  • The flame arrester structure prevents ejection of flames and combustible debris to avoid personnel injury. It mitigates catastrophic explosion risks and offers top-level safety protection for workers.

EPVS One-way Explosion Isolation Valve

It is a passive explosion isolation device that stays fully open under normal operating conditions. In the event of a dust explosion, reverse airflow generated by blast shockwaves forces the valve disc to close and maintain tight sealing for a sufficient duration to block flame propagation along pipelines.

Key Benefits

  • Simple & fast servicing: no full disassembly required, inspect and service through a fully open maintenance hatch
  • Streamlined internal structure cuts airflow pressure loss effectively
  • Fully customizable, available in any custom dimension and nominal diameter

Working Mechanism (DN100–DN1000)

Home Position:During standstill, the valve flap closes under its own dead weight and returns to the home position.Operating State.While the system is running, the isolation valve flap mounted on the suction side is held open by process airflow.

Explosion Occurrence:In the event of an explosion, the valve flap will be forced closed by pressure shockwaves propagating through the pipeline. It effectively blocks further explosion propagation. As a result, equipment and personnel on the suction pipeline side are fully protected from explosion hazards.

EPV Two-way Explosion-proof Isolation Valve

It is an explosion isolation device that uses the shock wave generated during an explosion to push a float ball, thereby blocking the flame and shock wave from the explosion. It is commonly used in conveying lines with explosion sources on both sides and at the clean air outlet side of dust collectors.
The valve can be controlled either with or without an external power source. Thanks to its low activation pressure and ease of maintenance, it offers simple and reliable explosion safety performance.

Technical Specifications & Advantages

Technical Specifications

Size Range: DN100 – DN600
Applicable for conveying dust, gas or mixed media
Optimized structure with smooth inner surface for low pressure drop
Minimum activation explosion pressure: 0.005 MPa
Maximum withstand explosion pressure: 1.0 MPa @ 20℃
Horizontal & vertical installation available
Dual function: unidirectional & bidirectional explosion isolation

Avantages

  • Low activation explosion pressure
  • Short required installation distance
  • Streamlined construction design to reduce airflow pressure loss
  • Suitable for dust explosion, gas explosion and hybrid mixture explosion protection
  • Bidirectional blast isolation capability

TYFK Dust Explosion-Proof Control Cabinet

TYFK dust explosion-proof control cabinet features max. 380V rated voltage and 400A rated current, designed for Zone 21/22 combustible dust hazardous areas. It supports circuit control, instrument display and on-site cabinet retrofitting, delivering stable and reliable explosion-proof electrical protection for powder industries.

Explosion Suppression System

Explosion suppression systems detect pressure build-up during an explosion within mere milliseconds and discharge suppression agent into enclosed vessels before destructive blast pressure develops. The suppression medium interrupts explosion reactions by absorbing heat from the deflagration flame front, cooling the flame down below the minimum temperature required to sustain combustion. It also forms a barrier between combustible particles to block further heat transfer.An explosion suppression system consists of suppression agent canisters, control unit and pressure detectors.

Both pressure detectors and controllers are available in custom explosion-proof versions for Zone 21 and Zone 22 dust hazardous locations.

Working Mechanism

The explosion suppression system detects deflagration at its incipient stage and extinguishes explosion flames within milliseconds by discharging fire suppression powder.

A specialized nozzle system achieves optimal distribution of suppression powder inside pipelines and process equipment, realizing reliable safe isolation of explosion flames.

Avantages

  • Reliable automatic system self-test function
  • Modular construction design for simplified operation and maintenance
  • Touch screen display controller
  • Suppression vessels available in a full range of standard sizes
  • Sanitary grade installation materials as optional supply
  • Adaptable to variable installation spacing requirements

Spark Detection & Extinguishing System

Our spark suppression device eliminates risks of dust fire and explosion. It captures sparks and hot glowing particles via dedicated sensors, triggering the water extinguishing module to put out sparks before they flow into downstream dust collectors, silos and processing machines.

This full-set active explosion protection package includes spark detectors, touch controller, alarm system, spray extinguishing unit and stable constant-pressure water supply, delivering proactive safety for all dust conveying pipelines.

Avantages

  • Reliable automatic system self-test function
  • Modular structural design for simplified operation and maintenance
  • Touch screen display controller
  • Extinguishing assemblies available in multiple standard specifications
  • Millisecond-level rapid response time
  • Equipped with high-pressure nozzles for superior spark quenching performance

Tovent Overall Dust Explosion Solution, Universal Gear for Domestic Plants & Export Projects

Tovent customizes integrated explosion sets per dust type, equipment size and indoor/outdoor conditions: FVDS flameless vents + DR discs for indoor dust collectors, EPV two-way valves for pipelines, spark & suppression gear for high-risk zones. All units hold CCC certificates, with optional IECEx & ATEX plus bilingual drawings & test reports. Tested for St1–St3 combustible dust like starch, aluminum, coal and wood powder. We own dozens of explosion patents and university joint R&D with domestically leading tech. Full services including scheme design, factory test and after-sales inspection serve domestic chemical/grain groups and overseas projects, meeting both domestic safety and foreign customs compliance at one stop.

Blast Panel

RDS Bursting Disc

Adopts single-layer flat structural design,Standard flange equipped on the outlet side,Standard static burst pressure: 0.01 MPa @ 22℃.

Technical Specifications

  • Material: 304 stainless steel, 316 optional . Ambient temperature range: -40℃ ~ +80℃
  • Shape: Rectangular & Circular .Static burst pressure range: 0.01–0.1 MPa
  • Maximum operating pressure equals 50% of static burst pressure
  • Max vacuum resistance: 50 kPa. Vacuum support bracket is required for higher vacuum conditions
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RD Bursting Disc

Adopts flat composite structural design,Standard static burst pressure: 0.01 MPa @ 22℃.

Technical Specifications

  • Material: 304 stainless steel / Teflon; 316 stainless steel / Teflon optional
  • Product Shape: Rectangular, Circular
  • Ambient Temperature Range: -40℃ ~ +230℃
  • Static Burst Pressure Range: 0.01–0.1 MPa
  • Maximum allowable operating pressure is 50% of the static burst pressure
  • Max vacuum resistance: 50 kPa. Vacuum support bracket is required for higher vacuum conditions
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RAS Bursting Panel

Designed with domed single-layer construction,Flange fitted as standard on outlet side,Standard static burst pressure: 0.01 MPa @ 22℃.

Technical Specifications

  • Material: Grade 304 stainless steel, Grade 316 as optional material
  • Ambient operating temperature: -40℃ ~ +80℃
  • Available configuration: Rectangular & Circular
  • Static burst pressure range: 0.01–0.1 MPa
  • Maximum allowable working pressure reaches 70% of rated static burst pressure
  • Maximum vacuum resistance capacity: 300 kPa
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RA Bursting Panel

Adopts domed composite layered structural design,Standard static burst pressure: 0.01 MPa @ 22℃.

Technical Specifications

  • Material: 304 stainless steel with Teflon lining; 316 stainless steel / Teflon as optional
  • Ambient temperature range: -40℃ ~ +230℃
  • Product shape: Rectangular, Circular
  • Static burst pressure range: 0.01–0.1 MPa
  • Maximum allowable working pressure equals 70% of static burst pressure
  • Maximum vacuum resistance capacity: 300 kPa
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Build Solid Explosion-Proof Barriers for Safer Powder Production

Dust safety is critical for industrial production. Adhering to technological innovation, Tovent develops highly stable and safe dust explosion-proof products. We provide exclusive protection devices for enclosed workshops and long conveying pipelines. We protect all workers and support sustainable development of enterprises with superior product quality.

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  • We installed flameless explosion vents and one-way isolation valves for our wood dust workshop. No flame leakage indoors, pipeline explosion spread fully blocked. Safe and easy to maintain.

  • The two-way explosion isolation valve and flameless vent match our dust collector perfectly. Custom sizes fit our equipment, low pressure loss without extra operating cost.

  • ATEX compliant flameless vents and passive explosion isolation flaps pass our safety audit. Quick installation, inspection port design greatly cuts daily maintenance time.

  • Metal powder production has high explosion hazards. The flameless vent cools blast flame instantly, isolation valve closes within milliseconds to isolate shockwave.

Produits apparentés

Alternative Names:

RDS explosion rupture disc ：Single layer blast panel / 304 explosion bursting disc / 316 stainless rupture disk / Dust vent bursting panel / 0.01MPa relief disc / Rectangular blast panel / Circular rupture disc / Low pressure bursting sheet / Silo explosion vent plate / Dust collector rupture panel / Flour mill blast disc / Wood dust relief plate / St1-St3 bursting disc / Vacuum resistant blast panel / Easy replace rupture sheet / No maintenance vent disc / Low temp blast panel / High temp rupture plate

RD composite rupture disc ：Teflon lined blast panel / High temp bursting sheet / Double layer vent disc / Corrosion resistant rupture plate / Chemical dust blast panel / Pharmaceutical vent disc /-40~230℃ rupture sheet / Solvent resistant bursting disc / Coated explosion relief plate / Food grade rupture disc / Plastic powder blast panel / Anti-corrosion vent sheet / Rectangular composite disc / Circular lined rupture disc / Dust silo composite panel / Bag filter bursting sheet / Custom pressure rupture disc / Vacuum support blast panel

RAS arched rupture disc ：Single dome blast panel / High vacuum bursting sheet / 70% working pressure disc / 304 arched vent plate / Coal dust rupture disc / Large vacuum resistant panel / Horizontal silo blast disc / Vertical equipment rupture sheet / High pressure resistance disc / No fragment vent plate / Wood dust arched disc / Metallic powder blast panel / DN600 dome rupture disc / DN1200 vent sheet / Low set pressure disc / Quick replace blast panel / Mine dust rupture plate

FVDS flameless vent ：Dust explosion flame arrester / Stainless steel flameless vent unit / No flame venting equipment / Indoor dust vent device / Explosion noise reduction vent / Match RAS rupture disc / Flour mill flameless vent / Wood dust flame trap / St1-St3 explosion protection unit / Low pressure drop vent housing / Quick access inspection port / Retrofit existing blast panel / Zero operation cost vent / Full flame interception device / Aluminum powder vent unit

FVDC reusable flameless vent ：Recycle flame trap unit / Washable flame interception module / Low noise explosion vent equipment / Zero operating cost arrester / Dust collector reusable vent / Match RD composite rupture disc / Food grade flameless housing / Pharmaceutical dust vent unit / St1-St3 reusable protection device / Pressure shock reduction vent assembly / No flame ejection vent system / Woodworking recyclable flame trap / Feed mill explosion arrester

EPVS passive single blast isolation valve ：One-way flame shut-off damper / DN100-DN1000 dust isolation valve / Passive explosion barrier valve / Inlet pipeline blast stop device / Low pressure drop isolation housing / Self-weight reset valve flap / Quick open maintenance hatch / No full disassembly repair / Flour mill one-way isolation damper / Wood dust blast shut valve / St1-St3 passive isolation equipment / Cyclone inlet explosion barrier / Bag filter isolation valve

EPV Two-way Explosion-proof Isolation Valve：EPV bi-directional explosion isolation valve / Two-way flame shut-off damper / Floating ball blast barrier valve / DN100-DN600 dual isolation damper / Bidirectional deflagration stop device / Low actuation pressure blast valve / 0.005MPa trigger isolation valve / Max 1.0MPa blast resistant housing / Horizontal vertical dual installation / Dust & gas dual isolation equipment / Smooth inner duct low pressure drop

Dust explosion suppression system ：Millisecond blast extinguishing equipment / Pressure sensor suppression unit / Touch screen explosion controller / Modular suppression cabinet / Self-check explosion control system / Multi-spec suppressant tank / High speed injection nozzle / Large equipment blast suppression device / Bucket elevator suppression kit / Reactor explosion suppression unit / St1-St3 blast extinguishing system / ATEX 21/22 zone suppression system

Spark detection extinguish system ：Millisecond spark sensor unit / Dust pipeline flame arrest equipment / Touch screen spark controller / Modular spark monitoring cabinet / Full system self-check function / High pressure water extinguish nozzle / Constant pressure water supply unit / Acoustic optical alarm device / Multi-section spark probe kit / Max 7m probe spacing design / Wood sanding spark protection system / Sawing machine spark suppression unit

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