NIBCO Technical Services • Phone: 1.888.446.4226 • Fax: 1.888.336.4226
3
gear operator hand wheel position in relation to the valve body and piping system. Pre-planning
may save from having to remove a newly installed valve and reinstalling in another orientation.
TABLE 1
III.
GEAR OPERATOR INSTALLATION AND HANDWHEEL POSITIONING
Piping/Flange Inside Diameter Requirements - Flange, Lug, & Wafer BFVs Only
Valve
Series
LD/WD/LC/WC
1000/2000/3000/5000 Series
LD7000/8000 Series
N200 Series
Valve Size
Minimum
Pipe/Flange
ID for Disc
Clearance
Maximum
Pipe/Flange
ID for
Proper Seal
Minimum
Pipe/Flange
ID for Disc
Clearance
Maximum
Pipe/Flange
ID for
Proper Seal
Minimum
Pipe/Flange
ID for Disc
Clearance
Maximum
Pipe/Flange
ID for
Proper Seal
2
”
2.00
2.49
1.31
2.43
1.38
2.24
2½”
2.37
2.86
1.89
3.06
1.95
2.74
3
”
2.67
3.43
2.64
3.65
2.66
3.33
4”
3.69
4.55
3.67
4.75
3.67
4.55
5
”
4.76
5.62
4.44
5.54
4.48
5.50
6
”
5.84
6.62
5.96
6.84
5.96
6.66
8”
8.01
8.62
7.85
8.89
7.85
8.61
10
”
10.00
10.80
9.73
10.70
9.76
10.75
12”
11.99
13.12
11.71
12.74
11.72
12.79
14
”
13.02
14.01
13.02
15.50
—
—
16”
15.20
16.30
15.20
17.90
—
—
18
”
17.09
18.31
17.16
19.67
—
—
20”
18.90
20.08
19.10
21.05
—
—
24”
23.05
24.71
23.04
25.57
—
—
28”
—
—
27.10
29.31
—
—
30”
29.06
30.29
29.08
31.28
—
—
32
”
—
—
30.91
33.93
—
—
36”
33.59
35.78
33.60
36.77
—
—
42
”
39.83
42.77
39.87
44.96
—
—
48
”
44.85
48.27
44.86
51.57
—
—
54
”
—
—
50.67
54.25
—
—
60”
—
—
54.93
60.25
—
—
Commercial
2"
— 8"
9/16" hex wrench
10"
—
14"
3/4" hex wrench
16"
—
18"
1
1
/
8
" hex wrench
Tools Required
Fire
Protection
(UL/FM)
2"
— 8"
9/16" hex wrench & 1/8" hex allen
wrench
10"
—
12"
3/4" hex wrench and 1/8" hex allen
wrench
Commercial
2"
— 8"
9/16" hex wrench
10"
—
14"
3/4" hex wrench
16"
—
18"
1
1
/
8
" hex wrench
