6.4
Reference Data
6.4.1 Tightening Torque Values
1. Unless otherwise specified in text, the torque values in Table 1 apply.
2. The indicated torque values are valid for bolts in greased condition.
3. Self locking nuts must be replaced on reassembly
4. Pipe connections (swivel nuts) should be tightened just enough so that leakage is stopped. Not more
than finger tight plus up to an additional 1/2 turn.
Bolt or Screw
Hex and socket head
Hex and socket head
Hex and socket head
Hex and socket head
Hex and socket head
Hex and socket head
Table 6-1: Torque Values
6.4.2 Torque Sequence Diagrams
Figure 6-2
2
6.4.3 Conversion Formulas
°F = 9/5°C + 32
PSI = BAR x 14.5
Page 93
1/4" (M 6)
5/16" (M 8)
3/8" (M 10)
1/2" (M 12)
9/16" (M 14)
5/8" (M 16)
6 Bolt and 4 Bolt Torque Sequence
3
4 Bolt Torquing
1
Sequence
4
Size
5
6 Bolt Torquing
2
Sequence
4
Purification Systems
Max. Torque
7 ft. lbs. (10 Nm)
18 ft. lbs. (25 Nm)
32 ft. lbs. (45 Nm)
53 ft. lbs. (75 Nm)
85 ft. lbs. (120 Nm)
141 ft.-lbs (200 Nm)
3
1
6
°C = 5/9 x (°F-32)
BAR =PSI x 0.0689
3rd Edition, Rev 0 Chg 6