HJ-55 fire resistant build-up louver
Article number: 1295
The aluminium ventilation louvres type HJ are specially designed for ventilation of technical rooms. The eight structure consists of a steel with a stainless steel fire-resistant cassette. The whole is delivered with a fire resistance class E120 EW60 * according to NEN-EN 1634-1. The size in width and height is virtually unlimited. Ask us about the possibilities
Properties of the louvre:
• rain protection free according to specification
• (dust) snow and dust / sand resistant according to specification
• maintenance-free
• ground completely
• vandal-proof and condensate-draining
The JAZO ventilation louvre type HJ consists of a frame and single horizontal blades . Each blade is welded to the front and / or rear in the frame, creating a metallic whole that meets the requirements for the grounding of technical areas. One earth-litze is sufficient.
There are various types of framing profiles and frame for a variety of mounting options. This makes it possible to assemble in every architectural detail
| Features | Wert |
| Pitch | 59.5 [mm] |
| Build-in depth | 66.5 [mm] |
| Drag coefficient in | 6.71 |
| Drag coefficient out | 7.52 |
| Nettflow | 55 [%] |
| V in/out (m/s) | effectiveness (%) |
| 0,00 | 96,80 |
| 0.00 | 96.80 |
| 0,50 | 95,20 |
| 0.50 | 95.20 |
| 1,30 | 92,70 |
| 1.30 | 92.70 |
| 2,00 | 87,80 |
| 2.00 | 87.80 |
| 2,80 | 84,60 |
| 2.80 | 84.60 |
| V in/out (m/s) | rain |
| 0,50 | B |
| 0.50 | B |
| 1,00 | B |
| 1.00 | B |
| 1,50 | C |
| 1.50 | C |
| 2,00 | C |
| 2.00 | C |
| 2,50 | D |
| 2.50 | D |
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