Figure 79: Venturi insert and casing
6.6.9 Post-assembly checks
Perform these checks after you assemble the pump, then continue with pump startup:
•
Rotate the shaft by hand in order to make sure that it rotates easily and smoothly and that there is
no rubbing.
•
Open the isolation valves and check the pump for leaks.
6.6.10 Assembly references
6.6.10.1 Maximum torque values for fasteners
Preload and Torque for Metal-to-Metal Joints High Strength Steel Fasteners
The torque values specified in the table are for lubricated threads. These values should be increased for
dry threads only. Materials listed in this table are equal to the respective API 610, 12th Edition material
classes. In some cases, superior materials are substituted.
Table 13: Goulds 2239, ASTM A193 B7 and Goulds 2299 ASTM A320 L7
Bolt Dia. (D) in.
-
threads/inch
Tensile Stress
Area (Ab), (sq-in)
2239 (A193 B7)
¼-2 ½ dia: Sult = 125 ksi, Sy=105 ksi
over 2 ½ – 4: Sult = 115 ksi, Sy=95 ksi
over 4 – 7: Sult = 100 ksi, Sy=75 ksi
2299 (A320 L7)
¼-2 ½ dia:
Sult = 125 ksi, Sy=105
ksi
Max preload
(lbs)
Torque (ft-lb)
Nickel or
Moly Anti-seize
K=0.15
Torque (ft-lb)
Nickel or
Moly Anti-seize
K=0.15
1/4-20
0.0318
2337
7
7
5/16-18
0.0524
3851
15
15
3/8-16
0.0775
5696
27
27
7/16-14
0.1063
7813
43
43
1/2-13
0.1419
10430
65
65
9/16-12
0.1819
13370
94
94
5/8-11
0.226
16611
130
130
6.6 Reassembly
Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual
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