4 recommended spares, 5 fastener torques – Flowserve ERPN-M User Manual
Page 26
ERPN-M USER INSTRUCTIONS ENGLISH 02-08
Page 26 of 37
6.4 Recommended spares
Spares Recommended
Part
Start up
Normal Maintenance
No.of identical pumps
1 - 3
4 - 6
7+
1 - 3
4 - 6
7 - 9
10+
Case
1
Head (case cover and stuffing box)
1
Bearing housing
1
Shaft
(w/key)
1 1 2 1
Impeller
1 1 2 3
Wear rings (set)
1
1
1
1
1
2
3
Bearings complete (antifriction,radial)
1
2
3
1
2
3
3
Bearings complete (antifriction,thrust)
1
2
3
1
2
3
3
Magnetic
Coupling
1 2 3 1 2 3 3
Secondary
seal
1 2 3 1 2 3 3
Gaskets, O-rings (set)
1
2
3
1
2
3
3
6.5 Fastener torques
Tightening torque M
A
Nm (lbf.ft)
Size of
screw
Duplex SS
(S32760, S31803,
1.4462)
Carbon Steel (NACE)
(A 193 Gr.B7M,
A 320 Gr. L7M)
Carbon Steel
(A 193 Gr. B7,
A 320 Gr. L7, 8.8)
Austenitic SS
(A 193Gr. B8MA)
(NACE)
Austenitic SS
(A 193 Gr. B8/B8M,
A4-70,A2-70)
M 4
2 (1,5)
2,4 (1,8)
2,8 (2,1)
0,9 (0,7)
2 (1,5)
M 5
3,9 (2,9)
4,8 (3,6)
5,6 (4,1)
1,8 (1,4)
3,9 (2,9)
M 6
6,8 (5)
8,3 (6,1)
9,7 (7,1)
3,2 (2,3)
6,8 (5)
M 8
16,2 (12)
19,8 (14,6)
23,1 (17)
7,6 (5,6)
16,2 (12)
M 10
31,9 (23,6)
39 (28,8)
45,4 (33,5)
14,9 (11)
31,9 (23,6)
M 12
55,4 (40,9)
67,8 (50)
78,8 (58,2)
25,9 (19,1)
55,4 (40,9)
M 14
87,9 (64,9)
107,5 (79,3)
125,1 (92,3)
41 (30,3)
87,9 (64,9)
M 16
134,6 (99,3)
164,5 (121,4)
191,4 (141,3)
62,8 (46,4)
134,6 (99,3)
M 18
188 (139)
230 (170)
267 (197)
88 (65)
188 (139)
M 20
263 (194)
321 (237)
373 (276)
123 (90)
263 (194)
M 22
353 (260)
431 (318)
502 (370)
165 (121)
196 (145)
M 24
453 (334)
553 (408)
644 (475)
211 (156)
251 (186)
M 27
654 (483)
799 (590)
930 (686)
305 (225)
363 (268)
M 30
892 (658)
1090 (805)
1269 (936)
416 (307)
496 (366)
M 33
1200 (886)
1467 (1082)
1707 (1260)
560 (413)
667 (492)
M 36
1550 (1144)
1895 (1398)
2205 (1627)
723 (534)
861 (636)
M 39
1988 (1467)
2430 (1793)
2827 (2086)
928 (685)
1104 (815)
M 42
2472 (1824)
3021 (2229)
3515 (2594)
1153 (851)
1373 (1013)
M 45
3061 (2259)
3741 (2761)
4354 (3213)
1429 (1054)
1701 (1255)
M48
3703 (2732)
4526 (3340)
5266 (3886)
1728 (1275)
2057 (1518)
M64
8862 (6539)
10831 (7993)
12604 (9301)
4136 (3052)
4923 (3633)
Above mentioned torques are for all screwed unions, which works under dynamical load. For all other
connections you can use a corresponding smaller torque.