Flexible Acoustical Duct

DB Core

One ply of perforated, corrugated aluminum with interlocked seams, folded flat and knurled for flexibility and strength.

Length

10' standard

Velocity

3000 FPM

Operating Temp

0-750° F

Working Pressure

2” WC + and -

Burst Pressure

4" WC

1-ply Aluminum Core

.0055" thick,
AL 3003 - H111
Type DB

Type DB has a DB core wrapped with fiberglass insulation and sleeved in a polyethylene vapor barrier.

Length

10' standard

Velocity

3000 FPM

Operating Temp

10-200° F

Working Pressure

2” WC + and -

Burst Pressure

4" WC

1-ply Aluminum Core

.0055" thick,
AL 3003 - H111

Insulation

1.5" thick, .5 lb density

R-Value

4.5

Vapor Barrier

.17 perms
Type DBA

Type DBA has a DB core wrapped with fiberglass insulation and sleeved in a fiberglass reinforced, metalized polyester vapor barrier.

Length

10' standard

Velocity

3000 FPM

Operating Temp

10-200° F

Working Pressure

2” WC + and -

Burst Pressure

4" WC

1-ply Aluminum Core

.0055" thick,
AL 3003 - H111

Insulation

1.5" thick, .5 lb density

R-Value

4.5

Vapor Barrier

.05 perms