Flowserve Worthington WXB User Manual download pdf (Page 37)

WXB USER INSTRUCTIONS ENGLISH - 07/14

Page 37 of 51

7.3 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

Mechanical seal complete (Cartridge) 1 2 3 1 2 3 3

Shaft sleeve and interstage bush (set) 1 2 3 1 2 3 3

Gaskets, O-rings (set) 1 2 3 1 2 3 3

Balance drum and drum head (set) 1 1 1 1 1 2 3

7.4 Fastener torques

Tightening Torque M

Nm (lbf.ft)

Duplex SS Carbon Steel Austenitic SS

Size

Screw

S32760,

S31803,

1.4462

A193 B7M,

A320 L7M

(NACE)

A193 B7,

A320 L7,

8.8

3.6 4.6 10.9

A193 B8M

Cl2

A4-

70,

A2-70

A193

B8/B8M,

A193 B8MA

(NACE)

A2-

50,

A4-50

[Nm] [lbf.ft] [Nm] [lbf.ft] [Nm] [lbf.ft] [Nm] [lbf.ft] [Nm]

[lbf.ft] [Nm] [lbf.ft] [Nm]

[lbf.ft] [Nm]

[lbf.ft]

[Nm]

[lbf.ft]

M4 2.1 (1.5) 4.2 (3.1) 3 (2.2) 0.8 (0.6) 1.1 (0.8) 4.6 (3.4) 3.2 (2.4) 1.9 (1.4) 0.9 (0.7)

M5 4.1 (3) 8.3 (6.1) 5.9 (4.4) 1.6 (1.2) 2.2 (1.6) 8.6 (6.3) 6.4 (4.7) 3.6 (2.7) 1.6 (1.2)

M6 7.1 (5.2) 14.2 (10.5) 10.1 (7.4) 2.8 (2.1) 3.7 (2.7) 14.9 (11) 10.9 (8) 6.3 (4.6) 2.9 (2.1)

M8 17 (12.5) 35 (26) 24.6 (18.1) 6.8 (5) 9.1 (6.7) 36 (27) 27 (19.9)

15 (11.2)

7.1 (5.2)

M10 34 (25) 68 (50) 48 (35) 13.7 (10.1) 18.3 (13) 71 (52) 52 (38) 30 (22) 14 (10.3)

M12 59 (44) 118 (87) 84 (62) 23 (17) 31 (23) 123 (91) 91 (67) 51 (38) 24 (17.7)

M14 94 (69) 187 (138) 133 (98) 37 (27) 50 (37) 195 (144) 143 (105) 82 (60) 38 (28)

M16 145 (107) 290 (214) 206 (152) 57 (42) 76 (56) 302 (223) 222 (164) 126 (93) 58 (43)

M18 201 (148) 335 (247) 295 (218) 80 (59) 106 (78) 421 (311) 308 (227) 176 (130) 82 (60)

M20 283 (209) 472 (348) 415 (306) 112 (83) 150 (111) 592 (437) 434 (320) 247 (182) 115 (85)

M22 387 (285) 644 (475) 567 (418) 151 (111) 202 (149) 807 (595) 473 (349) 337 (249) 157 (116)

M24 487 (359) 811 (598) 714 (527) 193 (142) 257 (190) 1017 (750) 595 (439) 426 (314) 198 (146)

M27 716 (528) 1193 (880) 1050 (774) 284 (209) 379 (280) 1496 (1103) 716 (528) 292 (215)

M30 968 (714) 1614 (1190) 1420 (1047) 386 (285) 515 (380) 2033 (1500) 968 (714) 397 (293)

M33 1315 (970) 2191 (1616) 1928 (1422) 523 (386) 697 (514) 2747 (2026) 1008

(744) 536 (395)

M36 1692 (1248)

2820 (2080) 2482 (1831) 672 (496) 897 (662) 3535 (2607) 1297

(957) 690 (509)

M39 2187 (1613)

3645 (2689) 3208 (2366) 870 (642) 1160

(856) 4569 (3370) 890 (656)

M42 2714 (2002)

3920 (2891) 3980 (2936) 1146

(845) 1447

(1067)

5670 (4182)

M45 3375 (2489)

4875 (3596) 4950 (3651) 1425

(1051)

1800

(1328)

7050 (5200)

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 50 51

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Flowserve Worthington WXB User Manual Page 37

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