1995 SMACNA PER TABLE 1-7
WITH TIE-ROD OPTION
ALL 4-BOLT CONNECTORS
PITTSBURGH SEAM CONSTRUCTION
|
|
DUCT SIZE
|
GALV
GUAGE
|
SMACNA
CODE
|
JOINT
CONNECTION
|
FINISHED
LENGTH |
SINGLE
REINFORCEMENT |
DOUBLE
REINFORCEMENT |
|
0" - 12"
|
26
|
J
|
WC |
60" |
|
|
|
13" - 22"
|
24
|
J
|
WC |
60" |
|
|
|
23" - 36"
|
26
|
J
|
WC |
60" |
CTR |
|
|
37" - 48"
|
22
|
J
|
WC |
60" |
CTR |
|
|
49" - 60"
|
22
|
J
|
WC |
60" |
|
DTR |
|
61" - 72"
|
20
|
J
|
WC |
60" |
|
DTR |
|
73" - 84"
|
18
|
J
|
WC |
60" |
|
DTR |
|
85" - 96"
|
18
|
K
|
DM45 |
60" |
|
DTR |
Abbreviations:
WC = C.L. WARD "J" CONNECT CONNECTOR
DM45 = DUCTMATE 45 "K" CONNECTOR
CTR = CENTER TIE ROD (TUBE WITH THREADED INSERT)
DTR = DOUBLE TIE ROD (TUBE WITH THREADED INSERT)
|
