For even more versatility, Super Vac offers a manhole adapter, which allows departments and utility companies to safely place negative pressure fans on top of the manhole to pull smoke and toxic fumes from deep below the surface. This aluminum adapter is available in four sizes.
Manhole
Adapter |
Fan Size |
Manhole Size |
| MA12-24 |
12"(305 mm)
|
24" (610 mm)
|
| MA12-30 |
12"(305 mm)
|
30" (762 mm)
|
MA16-24
|
16"(406 mm)
|
24" (610 mm)
|
MA16-30
|
16"(406 mm)
|
30" (762 mm)
|
