Bolt Patterns - Flowserve Valtek Mark 100 User Instructions

Valtek ® Control Products Mark 100
10. Using the actuator, stroke the valve open and closed two
or three times to center the seat ring using pressure on the
top of the actuator.
11. With the plug stroked into the seat, tighten the body
bolting, following the bolting sequence outlined in
Figure 6. Use a minimum of four steps to reach the
suggested bolt torque values shown in Table 2. Stroke
the plug into the open position before the final bolting
torquing is completed. Never exceed more than 30% of
the suggested bolt torque value in a single step.
4
2
6
Six-Bolt Pattern
1
11
7
4
9
6
2
12-Bolt Pattern
Figure 6: Bolt patterns
VAIOM000103-02 (EN/AQ) March 2020
and Mark 100SC Control Valves
™
1
7
4
5
6
3
5
10
10
3
4
12
8
12
12. Slowly stroke the plug up and down to check the alignment
of the plug with the sleeve.
a CAUTION: If binding or sticking is observed, discon-
tinue stroking the valve and reassemble using the
above steps. Failure to do so could cause serious
valve damage. Contact your Flowserve representative
if binding cannot be resolved.
13. Perform a Quick Check as described in section 4.1.
1
5
8
2
Eight-Bolt Pattern
1
13
6 7
11
9
5
8
2
14
14-Bolt Pattern
6
10
3 4
7
2
10-Bolt Pattern
11
7
13
3 4
10
6
16
16-Bolt Pattern
1
8
3
9
5
1
15
5
9
3
14
8
12
2
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