You are here:
Stl. HS-27 muurrooster montage voorzijde WK3
Back to overview

Stl. HS-27 muurrooster montage voorzijde WK3

Article number: WSA10128

Assembly service

Our craftsmen assemble the products on site so that you are assured of a perfect end result.

Before we start assembling, we first come to the construction site to view the situation and measure everything again.

In the shopping cart you can indicate that you want to use the assembly service.

The safety ventilation louvres type HS (High Safety) are specially designed for the natural ventilation of transformer rooms and gas rooms.


  • rainproof
  • (dust) snow and dust resistant
  • sand-resistant
  • safe-proof
  • Flame-extinguishing
  • mouse-tight
  • maintenance-free
  • one metallic whole for grounding
  • vandal-proof and condensate-draining

As a result, people, animals, equipment and machines are optimally protected.

The JAZO ventilation louvre type HS consists of a frame and single horizontal blades , with a leak sill. Each blade is welded at the rear, creating a metallic whole that meets the requirements for the grounding of technical areas. One earth-litze is sufficient.

Features Wert
Pitch 36 [mm]
Build-in depth var [mm]
Drag coefficient in 62.6
Drag coefficient out 83.6
Nettflow 27.7 [%]
pressure loss according to EFD.Pro
V in/out (m/s) effectiveness (%)
0,00 94,00
0.00 94.00
0,50 84,00
0.50 84.00
1,30 72,00
1.30 72.00
2,00 43,00
2.00 43.00
2,80 21,00
2.80 21.00
sandblasting according to NEN-EN 13181: 2001, BSRIA
V in/out (m/s) rain
0,50 A
0.50 A
1,00 B
1.00 B
1,50 D
1.50 D
2,00 D
2.00 D
2,50 D
2.50 D
rain penetration classes according to NEN-EN 13030, BSRIA
Do you have any questions or would you like advice? 0316 - 59 29 11