Flowserve Mach 1 User Manual
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8
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User Instructions Mach 1 High Performance Plug Valve - DVENIM0300-01 - 03.13
TABLE IV-A-II
*Apply Loctite® 242 to fastener threads, top cap only.
TORQUE REQUIRED ON TOP CAP FASTENERS OF CLASS 150 MACh 1 VALVES
TABLE V-A-III
*Apply Loctite® 242 to fastener threads, top cap only.
TORQUE REQUIRED ON TOP CAP FASTENERS OF CLASS 300 MACh 1 VALVES
TABLE V-A-IV
*Apply Loctite® 242 to fastener threads, top cap only.
TORQUE REQUIRED ON TOP CAP FASTENERS OF CLASS 600 MACh 1 VALVES
TABLE V-A-V
TORQUE ON PLUG ADJUSTER OF MACh 1 VALVES, 150#, 300# AND 600#
SECTION V
17. Place the locking stop (Part 12) on the top cap as shown in
Figure V-A7 and tighten the locking stop fasteners (Part 13) to
a reasonable torque. Check their orientation based on the loca-
tion marks made during disassembly (Section III, step 1).
FIGURE V-A7
18. Place the stop collar (Part 14) and retainer (Part 15) on the
plug stem as shown in Figure V-A8. The stop collar should
point in the direction of the flow. Check the orientation based
on the location marks made during disassembly (Section III,
step 1).
FIGURE V-A8
19. The valve should turn clockwise to close. The valve is now
ready for test and use.
20. LEAK TESTING: Anytime a valve has been modified in any
manner, including fastener changes, it must be re-tested.
Normal testing, using gas, should be at 80 PSI for Class
150 through Class 600. Refer to API or MSS for test proce-
dures complying with these specifications.
Valve sizes
1"
1.5"
2"
3"
4"
6"
Max. Torque (ft-lbs)
10
10
15
28
40
80
Valve sizes
1"
1.5"
2"
3"
4"
6"
Max. Torque (ft-lbs)
12
12
22
35
62
115
Valve sizes
1"
1.5"
2"
3"
4"
6
"
Max. Torque (ft-lbs)
14
20
35
45
42
70
Valve sizes
1"
1.5"
2"
3"
4"
6
"
Max. Torque (ft-lbs)
35
35
35
50
75
150