Duct Spacers Common Features



DUCT
A
CH
CV
E
F
SIZE
2-WAY
3-WAY
4-WAY
2"
8"
11 3/8"
14 3/4"
3 7/16"
3 7/16"
4 1/4"
1 3/4"
3"
10 1/4"
14 3/4"
19 3/8"
4 9/16"
4 9/16"
4 3/4"
2 1/4"
4"
12 1/4"
17 3/4"
24 1/4"
5 9/14"
5 9/16"
5 1/4"
2 3/4"
1 1/2" SEPARATION
DUCT
A
CH
CV
E
F
SIZE
2-WAY
3-WAY
4-WAY
2"
9 1/2"
13 1/2"
17 3/8"
3 15/16"
3 15/16"
4 1/4"
1 3/4"
3"
11 1/4"
16 1/4"
21 3/8"
5 1/16"
5 1/16"
4 3/4"
2 1/4"
4"
13 3/4"
19 3/4"
25 7/8"
6 1/16"
6 1/16"
5 1/4"
3 1/8"
5"
15 7/8"
22 7/8"
30"
7 1/16"
7 1/16"
5 7/8"
3 5/8"
6"
18"
26 1/4"
34 3/8"
8 3/16"
8 3/16"
6 3/8"
4 1/4"
2" SEPARATION
DUCT
A
CH
CV
E
F
SIZE
2-WAY
3-WAY
4-WAY
2"
10 1/4"
14 3/4"
19 3/8"
4 9/16"
4 9/16"
4 1/4"
1 3/4"
3"
12 1/4"
17 3/4"
24 1/4"
5 9/16"
5 9/16"
4 3/4"
2 1/4"
4"
14 1/4"
20 7/8"
27 1/4"
6 9/16"
6 9/16"
5 1/4"
3 1/8"
5"
16 3/8"
24 1/8"
31 3/4"
7 5/8"
7 5/8"
5 7/8"
3 5/8"
6"
19 1/2"
27"
35 5/8"
8 5/8"
8 5/8"
6 3/8"
4 1/4"
3" SEPARATION
DUCT
A
CH
CV
E
F
SIZE
2-WAY
3-WAY
4-WAY
2"
11 5/8"
16 7/8"
22 1/8"
5 1/4"
5 1/4"
4 1/4"
1 3/4"
3"
14 1/4"
20 7/8"
27 1/4"
6 9/16"
6 9/16"
4 3/4"
2 5/8"
4"
16 3/8"
24 1/8"
31 3/4"
7 5/8"
7 5/8"
5 7/8"
3 5/8"
5"
19 1/2"
27"
35 5/8"
8 5/8"
8 5/8"
6 3/8"
4 1/4"
6"
19 1/2"
29 1/8"
38 3/4"
9 5/8"
9 5/8"
6 3/8"
4 1/4"
1" SEPARATION / BELL TELEPHONE
DUCT
A
CH
CV
E
F
SIZE
2-WAY
3-WAY
4-WAY
4"
11 11/16"
17 1/8"
22 3/8"
5 5/16"
5 5/16"
3 2/3"
2 5/8"
** Standard base clearance from trench floor is 1" - 3" is also available


A TYPE OF SPACER M - Module (Interlocking) U - Unit Type Spacer
MB - Module Base (Interlocking) IU - Interlocking Unit Spacer
IC - Interlocking Converter Module MC - Module Cap (Interlocking)
 
B Indicates the nominal duct size spacer is to accommodate.
Note: For converter module spacers, both duct sizes will be shown. (i.e. 5-4)
 
C  TYPE OF DUCT 

A - Plastic duct; Iron pipe size    

T - Bell spec AT 8546, Plastic duct
 
D  Indicates number of ducts abreast for each tier.     
      
E Horizontal duct separation in 1/10". Note: For interlocking caps, only horizontal dimension is shown.     
      
F Vertical duct separation in 1/10".     
A B C D E F
TYPE OF
SPACER		 NOMINAL
DUCT SIZE		 TYPE OFDUCT DUCTS PER
TIER		 HORIZONTAL SEPARATION VERTICAL
SEPARATION
M 5 A 3 20 20

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