The HJ (Horizontal Jalousie) type ventilation louver is used in utility and industrial building and in various technical rooms where special requirements are made of air flow, low air pressure increase and rain resistance, as in emergency power generating set rooms and combined electricity/heat production (CHP) rooms, machine rooms, boiler houses and compressor buildings.
The louver allows a great deal of air to enter through a relatively small surface.

Functional Properties:
Vandal-proof, water-repellent, low maintenance, small build-in depth, good stability and simple installation.

System construction:
JAZO’s HJ ventilation louver consists of a frame and single horizontal blades, and a bottom sill. Each blade is totally welded into the frame, resulting in a metallic whole that fulfils the demands on earthing made of technical rooms. Various sorts of framing sections and adjustment casings are available for different possibilities of building in. This makes it possible to build it in with any architectural detail.

Type HJ:
- HJ-44; nett flow 44%
- HJ-55; nett flow 55%

Possibilities:
- Burglar proof
- Fire resistant
- Sound insulating

Materials:
- Aluminium
- Steel
- Stainless steel
 

	HJ-44 ventilation louver, various framing sections possible.   To combine with: - HS-42 safety ventilation louver - HS-42 design louver - HF-58 ventilation louver Technical specs / options
Click to enlarge	HJ-44 Downloads (drawings / spec sheet / ventilation specs)

	HJ-55 ventilation louver, various framing sections possible.   To combine with: - HS-50 safety ventilation louver - HS-50 design louver - HF-66 ventilation louver  Technical specs / options
Click to enlarge	HJ-55 Downloads (drawings / spec sheet / ventilation specs)