Instruction manual

Instruction Manual
D500240X012
A31A Valve
October 2012
10
Figure 4. Optional Shaft-to-Valve Body Bonding Strap Assembly
VALVE BODY
ACTUATOR
A
A
VIEW A-A
37A6528-A
A3143-2
Table 5. Hex Head Screw, Stud Bolt and Cap Screw Data
(1)
VALVE SIZE, NPS
NUMBER SIZE DIA. INCH & THREAD LENGTH, INCH
CL150 CL300 CL150 CL300 CL150 CL300
Single-Flange Style with Stud Bolts
3 4 8 5/8-11 3/4-10 5-3/4 6
4 8 8 5/8-11 3/4-10 6 6-1/2
6 8 12 3/4-10 3/4-10 6-1/2 7-1/2
8 8 12 3/4-10 7/8-9 7 9
10 12 16 7/8-9 1-8 8 10
12 12 16 7/8-9 1-1/8-8 8-1/2 11
Wafer-Style with Cap Screws
3 8 16 5/8-11 3/4-10 1-7/8 2
4 16 16 5/8-11 3/4-10 2 2-1/4
6 16 24 3/4-10 3/4-10 2 2-1/2
8 16 24 3/4-10 7/8-9 2-1/4 3
10 24 32 7/8-9 1-8 2-1/2 3
12 24 32 7/8-9 1-1/8-8 2-3/4 3-3/8
1. Thread engagement in accordance with ASME B31.3 “Chemical Plant a nd Petroleum Refinery Piping”.
WARNING
The valve drive shaft is not necessarily grounded to the pipeline when installed. Personal injury or property damage could
result, if the process fluid or the atmosphere around the valve is flammable, from an explosion caused by a discharge of
static electricity from the valve components. If the valve is installed in a hazardous area, electrically bond the drive shaft to
the valve.
Note
The packing is composed of all conductive packing rings (graphite ribbon packing) to electrically bond the shaft to the valve for
hazardous area service or non-conductive PTFE packing rings. For oxygen service applications, provide alternate shaft-to-valve
body bonding according to the following step.