A passive mechanical in-duct isolation valve used in pipelines containing combustible dust. In the event of an explosion, the valve swiftly closes with a millisecond response speed, rapidly isolating the explosion. This prevents the propagation of dust explosions from downstream pipelines to upstream pipelines, effectively mitigating the risk of "secondary explosions" or "multiple explosions.
| Item | Parameter | |||
| Specification | DN100~DN300 | DN350~DN600 | DN650~DN1000 | |
| Pressure loss @20m/s | 260Pa | 350Pa | 400Pa | |
| pred,max | 0.05MPa | 0.04 MPa | 0.03 MPa | |
| Installation Distance | 2~7m | 3~7.5m | 5.5~8.5m | 4.5~8.5m |
| Dust species | Non metallic dust：St1 and St2 | Non metallic dust：St1 | ||
| metallic dust：St1 | / | |||
| No corrosiveness, no viscosity, no friction. | ||||
| Applicable technology | Negative pressure technology; | |||
| Working pressure not higher than one atmospheric pressure (0.1MPa); | ||||
| Oxygen content is not higher than that in air (21%). | ||||
| Reusability | Not reusable | |||
| Product standard | EN 16447-2014 Explosion isolation flap valves | |||
| Test Report | Certified by the third-party authority in China | |||
High Pressure Explosion-Proof Dust Collector
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