Fisher 8580 - Page 7

Instruction Manual
D103300X012
8580 Valve
April 2020
7
Table 6. Stud Bolt Data
VALVE SIZE
DOUBLE FLANGE STYLE
CL150 CL300
Size Dia &
Thread,
Inch
Through Holes Threaded Holes
Size Dia &
Thread,
Inch
Through Holes Threaded Holes
NPS
No. of
Stud
Bolts
C Dimen‐
sion, Inch
No. of Stud
Bolts
B Dimen‐
sion, Inch
No. of
Stud
Bolts
C Dimen‐
sion, Inch
No. of Stud
Bolts
B Dimen‐
sion, Inch
3 5/8-11 8 3.75 - - - - - - 5/8-11 12 4.25 4 3.25
4 5/8-11 12 4.00 4 3.00 3/4-10 12 4.75 4 3.75
6 3/4-10 12 4.50 4 3.50 3/4-10 12 5.25 4 4.00
8 3/4-10 12 4.50 4 3.75 7/8-9 20 6.00 4 4.5
10 7/8-9 20 5.00 4 4.00 1-8 28 6.50 4 5.25
12 7/8-9 20 5.25 4 4.00 1 1/8-8 28 7.00 4 5.25
Figure 3. Stud Bolts for Installation (also see table 6)
DOUBLE-FLANGE VALVE BODY
(THREADED HOLES)
DOUBLE-FLANGE VALVE BODY
(THROUGH HOLES)
C
B
Figure 4. Optional Shaft‐to‐Valve Body Bonding Strap Assembly
Note
Standard packings for the 8580 valve are composed of all conductive packing rings (graphite ribbon packing) or partially
conductive packing rings (such as a carbon‐filled PTFE female adaptor with PTFE V‐ring packing) to electrically bond the shaft to