ACE BOILER INC.
Page
8
Torque’s:
The following are recommended bolt torque requirements
Bolt Size
Min Torque Max Torque
1/2" 45
ft.lb
60 ft.lb
5/8"
90 ft.lb
120 ft.lb
3/4"
150 ft.lb
200 ft.lb
7/8"
240 ft.lb
320 ft.lb
1"
368 ft.lb
490 ft.lb
1 1/8"
533 ft.lb
710 ft.lb
1 1/4"
750 ft.lb
1000 ft.lb
1 1/2"
1200 ft.lb
1600 ft.lb
Notes:
* Spray each stud bolt and nut generously with penetrating oil before re-torque.
** Gasket thickness before compression. All partition gaskets are
⅛ײ
in width before compression. All gaskets
expand twice their width after compression.
*** These are recommended torque values. Stud bolts must not be stressed above 60% of their yield strength.
Stud bolt torque (T) & Bolt diameter (Y)
Gap between flanges
approx. (X) after torque
Figure 1.2
Shell flange to bonnet flange joint –
DW Tube Bundle
360º
Leak
detection
area
Figure 1.1
Shell flange to bonnet flange joint –
SW Tube Bundle
Содержание PVG WW
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