| High performance of blast resistance | Innovative tortoiseshell design to ensure high performance of blast resistance against blast waves with peak pressure more than 13 bar peak pressure reflected by long duration and multiple blast impacts and maintain all functions after blasts. |
| High performance of impulse block rate | Being able to completely close within 4 ms under 2 bar peak pressure reflected, which assures the approximate 100% impulse block rate. |
| Automatic-reset | Being able to retrieve ventilation function automatically after the blasts. |
| Double acting | Being able to provide protection from both positive pressure and negative pressure. |
| Excellent corrosion resistance | Being made of chemical-resistant materials enables long term maintenance-free. |
| Designed peak pressure | 13 bar reflected |
| Designed blast duration | 70 ms |
| Impulse block rate | 99.9% (Certified at 13 bar peak pressure reflected/70 ms) |
| Designed operating temperature | -30ºC to 300ºC |
| Air flow rate of single block | 600 m3/h at 100 Pa pressure drop |
| High temperature resistance: | >40 mins at 300ºC |
| ATEX |
(Gas), Zone 1 & 2, IIC, T6…T2; (Dust), Zone 21 & 22, IIC, T70ºC ~ T285ºC |
| A. Application | H-Hardened shelter, I-Industry |
| B. Block material | 1-Hard anodizing aluminum alloy, 2-Anodizing aluminum alloy, 3-Aluminum alloy |
| C. Blade material | 1-Hard anodizing aluminum alloy, 2-Anodizing aluminum alloy, 3-Aluminum alloy |
| D. Frame material | 1-Stainless steel 316, 2-Stainless steel, 3-Hot galvanized steel, 4-Epoxy coated steel |
| E. Column number | 01, 02, … |
| F. Raw number | 01, 02, … |
| Certificates | Product is type tested at VTT, Finland. Test reports are upon request. |
| Applications | OGP, Chemical, Nuclear power, Others |
