Assembly references, Maximum torque values for fasteners, Spare parts – Goulds Pumps 3620 - IOM User Manual
Page 86
Maintenance
Assembly references
Maximum torque values for fasteners
Lubricated values are 2/3 of the unlubricated values.
Fastener size
(diameter in
inches) –
threads per inch
2210 material ft-lb (Nm)
2229 material ft-lb (Nm)
2239 material ft-lb (Nm)
Lub.
Unlub.
Lub.
Unlub.
Lub.
Unlub.
3/8 –16
8 (9)
12 (16)
17 (23)
22 (30)
27 (37)
36 (49)
7/16 –14
13 (18)
20 (27)
26 (39)
35 (47)
43 (58)
57 (77)
1/2 –13
20 (27)
30 (41)
40 (54)
54 (73)
65 (88)
87 (118)
9/16 –12
29 (39)
43 (58)
58 (79)
78 (106)
94 (127)
125 (169)
5/8 –11
39 (53)
59 (80)
80 (108)
107 (145)
130 (176)
173 (235)
3/4 –10
70 (95)
105 (142)
99 (134)
132 (179)
230 (312)
307 (416)
7/8 –9
113 (152)
170 (230)
159 (216)
212 (287)
371 (503)
495 (671)
1 –8
170 (230)
255 (346)
239 (324)
318 (431)
557 (755)
742 (1006)
1-1/4 –8
N/A
N/A
N/A
N/A
1148 (1556)
1531 (2076)
1-3/8 –8
N/A
N/A
N/A
N/A
1558 (2112)
2077 (2816)
1-1/2 –8
N/A
N/A
N/A
N/A
2056 (2788)
2742 (3718)
1-3/4 –8
N/A
N/A
N/A
N/A
3344 (4534)
4459 (6046)
2-1/8 –8
N/A
N/A
N/A
N/A
6150 (8338)
8200 (11118)
2-1/2–8
N/A
N/A
N/A
N/A
10198 (13827)
13598 (18436)
Spare parts
Critical service spare parts
For critical services, stock these parts, where applicable:
• Impeller (101)
• Thrust bearing end cover, outboard (ball and sleeve bearing construction only) (109A)
• Shaft (122)
• Radial bearing end cover, inboard (ball bearing construction only) (160)
• Impeller key (178)
An alternative approach is to stock a complete rotating element. This is a group of assembled
parts that includes all rotating components except the bearings (and parts), mechanical seals,
and coupling.
Recommended spare parts
When ordering spare parts, always state the serial number, and indicate the part name and
item number from the relevant sectional drawing. It is imperative for service reliability to have a
sufficient stock of readily available spare parts.
Stock these spare parts, where applicable:
• Cartridge mechanical seal
• Thrust bearing (duplex pair) (112A)
• Oil rings (114, 323)
• Sleeve bearings, two (117) (sleeve bearing construction only)
• Impeller locknut, radial (124)
• Impeller locknut, thrust (130)
• Bearing locknut (136)
• Impeller wear rings (142)
• Casing wear rings (164)
• Radial bearing (168) (ball bearing construction only)
• Labyrinth seal, outboard (332A)
• Labyrinth seal, inboard (333A)
84
Model 3620, API Type BB2 Single Stage / ISO 13709 1st/2nd Ed. / API 610 8th-11th Ed. Installation, Operation, and
Maintenance Manual