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Figure 10 – Typical Spring Isolator Types and Construction
Type CT-4 Spring Isolators
5/8" [16 mm]
9-1/4"
[235 mm]
7-1/2" [191 mm]
C-C
foundation
bolts
6-1/2" [165 mm]
Free Height
Type CT-7 Spring Isolators
5/8"
[16 mm]
8-3/4" [222
[184 mm]
mm] C-C
foundation
bolts
6-5/8" [168
mm] Free
5/8"
Height
[16 mm]
CDHF-SVN01B-EN
General Information
10-1/4"
[260 mm]
Adjusting Bolt
Adjust the isolator so
that the upper
housing clears the
lower housing by at
least 1/4" [6 mm]
Acoustical nonskid
neoprene pad (top
and bottom)
7-1/4"
9-3/4"
[248 mm]
Adjust the isolator so that
the upper housing clears the
lower housing by at least
1/4" [6 mm]
Adjusting Bolt
Acoustical nonskid
neoprene pad (top
and bottom)
Isolator
Maximum
Type
Load
Deflection
and Size
(lbs.)
CT-4-25
1,800
CT-4-26
2,400
CT-4-27
3,000
CT-4-28
3,600
CT-4-31
4,400
CT-4-32
5,200
Isolator
Maximum
Type
Load
Deflection
and Size
(Kg)
CT-4-25
816
CT-4-26
1,089
CT-4-27
1,361
CT-4-28
1,633
CT-4-31
1,996
CT-4-32
2,359
Isolator
Maximum
Type
Load
Deflection
and Size
(lbs.)
CT-7-25
3,150
CT-7-26
4,200
CT-7-27
5,250
CT-7-28
6,300
CT-7-31
7,700
CT-7-32
9,100
Isolator
Maximum
Type
Load
Deflection
and Size
(Kg)
CT-7-25
1,429
CT-7-26
1,905
CT7-27
2,381
CT-7-28
2,858
CT-7-31
3,493
CT-7-32
4,128
Spring
Color
(Inches)
Coding
1.22
Red
1.17
Purple
1.06
Orange
1.02
Green
0.83
Gray
0.74
White
Spring
Color
(mm)
Coding
31
Red
30
Purple
27
Orange
26
Green
21
Gray
19
White
Spring
Color
(Inches)
Coding
1.22
Red
1.17
Purple
1.06
Orange
1.02
Green
0.83
Gray
0.74
White
Spring
Color
(mm)
Coding
31
Red
30
Purple
27
Orange
26
Green
21
Gray
19
White
21
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