CONTENTS

LEGEND

ORDERING INFORMATION

ELBOWS

TEES

LATERALS

CROSSES

Y BRANCH RECTANGLE TO ROUND,
REDUCER &
OFFSET

BELLMOUTH, COUPLING, ANGLE RING & END CAPS

CURVED SADDLES, FLAT SADDLES, SPUN INSIDE: OUTSIDE COUPLING, SPUN INSULATION END & SPUN REDUCER

CLAMP ACCESS DOOR & DUCT CONNECTIONS

Round Duct Gauge Selection Galvanized or Stainless Steel


Maximum 2" w.g. Static Positive

Maximum 10" w.g. Static Positive

Maximum 2"w.g Static Negative

Duct Diameter
In Inches

Spiral Seam
Gauge

Longitudinal Seam
Gauge

Spiral Seam
Gauge

Longitudinal Seam
Gauge

Spiral Seam
Gauge

Longitudinal Seam
Gauge

6"
8"
10"
12"
14"
16"
18"
19-26"
27-36"
37-50"
51-60"
61-84"

28
28
28
28
28
26
26
26
24
22
20
18

28
28
26
26
26
24
24
24
22
20
18
16

28
28
28
26
26
24
24
24
22
20
18
16

28
26
26
24
24
22
22
22
20
20
18
16

28
28
28
28
28
26
24
24
22
20
18
16

28
28
28
26
24
24
22
20
18
18
16
14

Fittings shall be of wall thickness not less than specified above for longitudinal seam strait ducts.

Aluminum Round Duct Thickness



Maximum 2" w.g. Static Positive

Maximum 2"w.g Static Negative

Duct Diameter in Inches

Spiral Seam(inches)

Longitudinal seam(inches)

Spiral seam(inches)

Longitudinal seam(inches)

3 thru 8
9 thru 14
15 thru 26
27 thru 36
37 thru 50
51 thru 60
61 thru 84
.025"
.025"
.032"
.040"
.050"
.063"
N.A.

.032"
.032"
.040"
.050"
.063"
.071"
.090"

.025"
.032"
.040"
.050"
.063"
N.A.
N.A.

.040"
.040"
.050"
.063"
.071"
.090"
N.A.

SPIRAL PIPE