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The bolting must be checked for correct size, length, material and that all connection flange bolt holes are
utilized. Tighten the bolts and nuts in the crossover method shown in Fig. 1, to load the pipe and valve evenly
and prevent stress on the joints. Finally tighten bolts to correct torque levels as recommended in Table. Do not
overtighten.
•
To avoid effects of weight and stress of the piping system to the valves, all piping systems should contain
independent support mechanisms.
•
After the installation process is completed, check the connections for leaks with water. Do not use the valve if it
is leaking.
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During installation prevent to damage the paint of the valve.
Metric
M10
M12
Torque
50
87,2
(Nm)
Doc. No: FRM.65
Rev. No: 00 Rev. Date: 01.06.2015
M16
M20
M24
M27
210,8
411,9
711
1048
Hex Head Bolt - Grade 8.8
M30
M33
M36
1422
1932
2481
Fig.1
M39
M45
M52
M56
3226
4992
7747
9650
M64
14416
6