Cameron Barton 199 - Page 16

1
7
Table 4-3. NACE Bolt Torque Ratings
Item
SWP
2000 PSI
(13.8 MPa)
3000 PSI
(20.7 MPa)
4500 PSI
(31.0 MPa)
Fastener
12 Pt. Head Bolt
12 Pt. Head Bolt
with Hex Nut
12 Pt. Head Bolt
with Hex Nut
Bolt Size
1/2-13 x 5.5" 1/2-20 x 6" 1/2-20 x 6"
Bolt Material
B7M/L7M Steel B7M/L7M Steel B7M/L7M Steel
Nut Size
N/A 1/2-20 1/2-20
Nut Material
N/A 4140 Steel 4140 Steel
Quantity
6 12 12
Bolt Part Number
0220-1075J S408-0064Z S408-0064Z
Nut Part Number
N/A S408-0021Z S408-0021Z
HSG. Gasket
0001-1140R S528-0001Z S528-0001Z
HSG. O-RIng
0001-1099R N/A N/A
Torque (ft/lbs) 55-60 55-60 55-60
SPECIAL NOTES:
(1) Lubricants: Molykote G paste, Teon-base pipe dope, graphite-base grease,
or similar lubricants. Lube rst 2 threads only. Do not lube bearing surface
.
(2) Torque on bolts is accomplished in 3 or 4 steps. Tighten UNIFORMLY.
(3) If originally supplied with unit, re-install the "Do Not Reuse Bolts" and
"NACE" product tags
.
16