WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
Page 20 of 46
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4.6.3 Maximum forces and moments allowed on WDX pump flanges
Direction of forces
Fx = horizontal parallel to pump axis
Fy = horizontal perpendicular to pump axis
Fz = vertical perpendicular to pump axis
Direction of moments
Mx = around a horizontal axis parallel to pump axis
My = around a horizontal axis nozzle axis
Mz = around a horizontal axis perpendicular to pump axis
PIPE
CONFIGURATION
FLANGE
FORCES
MOMENTS
Diameter
Fy
Fz
Fx
F
My
Mz
Mx
M
1.5 i n
130 lbf
200 lbf
160 lbf
290 lbf
170 ft-lbf
260 ft-lbf
340 ft-lbf
460 ft-lbf
40 mm
58 daN
89 daN
71 daN
128 daN
23 daN.m
35 daN.m
46 daN.m
62 daN.m
2 in
130 lbf
200 lbf
160 lbf
290 lbf
170 ft-lbf
260 ft-lbf
340 ft-lbf
460 ft-lbf
Vertical pi pewor k
50 mm
58 daN
89 daN
71 daN
128 daN
23 daN.m
35 daN.m
46 daN.m
62 daN.m
perpendic ular
3 in
200 lbf
300 lbf
240 lbf
430 lbf
350 ft-lbf
530 ft-lbf
700 ft-lbf
950 ft-lbf
to the s haft
80 mm
89 daN
133 daN
107 daN
193 daN
47 daN.m
72 daN.m
95 daN.m
128 daN.m
4 in
260 lbf
400 lbf
320 lbf
570 lbf
500 ft-lbf
740 ft-lbf
980 ft-lbf
1330 ft-lbf
100 mm
116 daN
178 daN
142 daN
256 daN
68 daN.m
100 daN.m
133 daN.m
180 daN.m
6 in
460 lbf
700 lbf
560 lbf
1010 lbf
870 ft-lbf
1300 ft-lbf
1700 ft-lbf
2310 ft-lbf
150 mm
205 daN
311 daN
249 daN
448 daN
118 daN.m
176 daN
230 daN.m
313 daN.m
1.5 i n
130 lbf
200 lbf
160 lbf
290 lbf
170 ft-lbf
260 ft-lbf
340 ft-lbf
460 ft-lbf
40 mm
58 daN
89 daN
71 daN
128 daN
23 daN.m
35 daN.m
46 daN.m
62 daN.m
2 in
130 lbf
200 lbf
160 lbf
290 lbf
170 ft-lbf
260 ft-lbf
340 ft-lbf
460 ft-lbf
50 mm
58 daN
89 daN
71 daN
128 daN
23 daN.m
35 daN.m
46 daN.m
62 daN.m
Horizontal pipework
3 in
200 lbf
300 lbf
240 lbf
430 lbf
350 ft-lbf
530 ft-lbf
700 ft-lbf
950 ft-lbf
perpendic ular
80 mm
89 daN
133 daN
107 daN
193 daN
47 daN.m
72 daN.m
95 daN.m
128 daN.m
to the s haft
4 in
260 lbf
400 lbf
320 lbf
570 lbf
500 ft-lbf
740 ft-lbf
980 ft-lbf
1330 ft-lbf
100 mm
116 daN
178 daN
142 daN
256 daN
68 daN.m
100 daN.m
133 daN.m
180 daN.m
6 in
460 lbf
700 lbf
560 lbf
1010 lbf
870 ft-lbf
1300 ft-lbf
1700 ft-lbf
2310 ft-lbf
150 mm
205 daN
311 daN
249 daN
448 daN
118 daN.m
176 daN
230 daN.m
313 daN.m
3 in
240 lbf
200 lbf
300 lbf
430 lbf
350 ft-lbf
530 ft-lbf
700 ft-lbf
950 ft-lbf
80 mm
107 daN
89 daN
133 daN
193 daN
47 daN.m
72 daN.m
95 daN.m
128 daN.m
Horizontal
4 in
320 lbf
260 lbf
400 lbf
570 lbf
500 ft-lbf
740 ft-lbf
980 ft-lbf
1330 ft-lbf
within the pump axis
100 mm
142 daN
116 daN
178 daN
256 daN
68 daN.m
100 daN.m
133 daN.m
180 daN.m
6 in
560 lbf
460 lbf
700 lbf
1010 lbf
870 ft-lbf
1300 ft-lbf
1700 ft-lbf
2310 ft-lbf
150 mm
249 daN
205 daN
311 daN
448 daN
118 daN.m
176 daN.m
230 daN.m
313 daN.m
Notes:
1) F = External force (tension or c ompression).
M = External moment, cloc kwise or counter-clockwise.
2) Forces and moments may be applied si multaneously in any
direction.
3) Val ues apply to all materials.
4) Higher loads may be applicable, if directi on and magnitude of
indivi dual loads are known, but these need written approval
from Flows erve Pump Di vision.
5) Pumps must be on rigid foundations and baseplates must be
fully grouted.
6) Pump/basepl ate should not be us ed as pipe anc hor. Sucti on
and discharge piping s houl d be anchored as clos e as possible
to the pump flanges to r educ e vibration and prevent strai n on
the pump casing. Expansion joints are r ecommended. They
must be properl y tied and l ocated on the side of the pipe anc hor
away from the pump
7) The pump mounting bolt torques specified must be used to
prevent relati ve movement between the pump casing and
baseplate. (See s ection 6.6,
F astener t orques.
). T he bolt
material must have a mini mum yiel d strength of 600 N/mm
2
(87 000 l b/in.
2
).
