Masoneilan 37002 Series MiniTork II Valve (w/actuator Model 33) Instruction Manual | 11
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Figure 8
Figure 9
Installation - Alignment
(cont.)
I.D. Tubing (Canadian Standard)
This tubing I.D. in nominal. Example: 6” tubing is 6” I.D. (See
Table 4). Install lined valve without gaskets. Use gaskets with
unlined valves. Cut gasket I.D. to equal tubing I.D. + 1/4“ to
prevent possible extrusion from interfering with the disc.
I.D. Tube Canadian Std
Size (in.)
I.D. (in.)
2
2
3
3
4
4
6
6
8
8
10
10
12
12
Table 4
Heavy Wall Pipe
2”, 3” and 4” Valves
The 2”, 3” and 4” MiniTork Butterfly valves, both lined and
unlined, may be mounted in Schedule 80 pipe lines in the
standard manner without disc-pipe interference. See section on
mounting the valve in “STANDARD COMMERCIAL WROUGHT
STEEL PIPE”.
6”, 8”, 10” and 12” Valves
For pipe I.D. less than standard Schedule 40 (either Schedule
60 or 80), either the flanges must be bored out to a given recess
depth or spacer rings must be used on either side of the valve to
assure free movement of the disc.
Pipe Recess
Spacer Rings
Valve
Size
(in.)
A (in.)
B
(in.)
I.D.
(in.)
O.D.
150
lb.
(in.)
O.D.
300
lb.
(in.)
Thick-
ness
T (in.)
6
1/4
6
1/16
6
1/16
8
5/8
9
3/4 1/4
8
1/2
8
8
10
7/8
12
1/2
10
7/8
10
10
13
1/4
14
1/8 7/8
12
1
12
12
16
16
1/2
1
Table 5
