Wind-resistance proof grades range from 7 to 12.
Designed for specific blast valve or blast damper to ensure zero flow resistance
added to of blast valve or blast damper.
Stainless steel made frames and sectional aluminum blades or optional stainless steel blades assure long-term maintenance free.
Made of chemical-resistant material and fit all corrosive conditions.
Top surface is bias by 5 degree to ground surface to assure self-clean.
Sizes: For specific blast valve or damper type.
Options |
Descriptions |
Material of frame |
1-Stainless Steel 316 2-Stainless Steel 304 |
Blades |
1-Sectional Aluminum 2-Stainless Steel 316 3-Stainless Steel 304 |
Roof |
1-Stainless Steel 316 2-Stainless Steel 304 |
Wind Resistance Grade |
7 (17m/s) 9 (24m/s) 12 (32m/s) |