Torque Values (Flanges); Torque Pattern Sequences - DANIEL 762 User Manual

CONTROL VALVES 762, 763, 765, 766 AND 767
Installation prerequisites
Important
Provide fire prevention measures and equipment per local regulations.
Flanges with 4 and 8 bolts
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Flanges with 12 or more bolts
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5.3

Torque values (flanges)

Table 5-1:
5.4

Torque pattern sequences

Table 5-2:
66
70
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First round - 30% of final torque (flange sequential order)
Second round- 60% of final torque (flange sequential order)
Third round - 100% of final torque (flange sequential order)
One final time - clockwise or counter clockwise sequentially around the flange
First round - 20% of final torque (flange sequential order)
Second round - 40% of final torque (flange sequential order)
Third round - 80% of final torque (flange sequential order)
Fourth round - 100% of final torque (sequential order)
One final time - clockwise or counter clockwise sequentially around the flange
Reference torque values for Daniel Control Valve (ft-lb) flange connections
Nominal pipe size
(NPS) Daniel Class 150
2 90
3 90
4 90
6 160
8 160
10 250
12 250
16 400
Cross-pattern tightening sequence when using single tool
Nominal pipe size
(NPS) Daniel Class 150
2 1-3-2-4
Daniel Class 300
90
160
160
160
250
400
550
800
Daniel Class 300
1-5-3-7 2-6-4-8
Daniel Models 762, 763, 765, 766 and 767 Control Valves
Daniel Class 600
90
160
250
400
550
800
800
1400
Daniel Class 600
1-5-3-7 2-6-4-8