Fastening Down; Pipework; Flange Loading And Tightening Torques - EBARA EVMSU Operation, Installation & Maintenance Manual Operation, Installation & Maintenance Manual

Vertical multistage pumps
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8.2.3 FASTENING DOWN

Bolt the pump on to a concrete base or suitable metal structure.
Use of anti-vibration supports is highly recommended in com-
mercial buildings (with occupants) if the concrete base is an in-
tegral part of the reinforced concrete structure of buildings.
When fastening, use a drill bit to center mark the 4 holes in the
base of the pump on the surface it is due to be installed on.
Use a drill to make 4 holes (dia. 12mm (15/32") for EVMSU 1, 3,
5, 10, 15, 20 pumps and dia. 14mm (9/16") for EVMU 32, 45, 64
pumps). Move the pump back into position, line it up with the
pipes and tighten the screws all the way.
The position of the fastening holes is also illustrated in section 15.6.

8.2.4 PIPEWORK

In addition to the instructions given below, also comply with the
general instructions found in sect. 15.7 of the manual and with
the directions in fig. 1.
WARNING!
Suction and discharge piping must be sized to
withstand the maximum working pressure of the
pump.
Models
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMU(L)
EVMUG
EVMU(L)
EVMUG
EVMU(L)
EVMUG
Models
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMSU(L)
EVMU(L)
EVMUG
EVMU(L)
EVMUG
EVMU(L)
EVMUG
EBARA
www.pumpsebara.com
Models
EVMSU(L)
1-3-5
EVMSU(L)
1-3-5
EVMSU(L)
1-3-5
EVMSU(L)
10-15-20
EVMSU(L)
10-15-20
EVMSU(L)
10-15-20
32
EVMU(L)(G)
EVMU(L)(G)
32
EVMU(L)(G)
45
EVMU(L)(G)
45
EVMU(L)(G)
64
EVMU(L)(G)
64
ALLOWABLE STRAIN ON THE FLANGE
Flange
1-3-5
F
ANSI
1-1/4"
1-3-5
L
ANSI
1-1/4"
1-3-5
N
-
1-1/4"
10-15-20
F
ANSI
2"
10-15-20
L
ANSI
2"
10-15-20
N
-
2"
32
F
ANSI
2-1/2"
32
F
ANSI
2-1/2"
45
F
ANSI
3"
45
F
ANSI
3"
64
F
ANSI
4"
64
F
ANSI
4"
ALLOWABLE TORQUE ON THE FLANGE
Flange
1-3-5
F
ANSI
1-1/4"
1-3-5
L
ANSI
1-1/4"
1-3-5
N
-
1-1/4"
10-15-20
F
ANSI
2"
10-15-20
L
ANSI
2"
10-15-20
N
-
2"
32
F
ANSI
2-1/2"
32
F
ANSI
2-1/2"
45
F
ANSI
3"
45
F
ANSI
3"
64
F
ANSI
4"
64
F
ANSI
4"
Pumps Americas Corporation
It is recommended that a pressure gauge be installed on the
discharge line before the check valve and isolating valve. Use
adequate supports for the suction and discharge lines to avoid
stress on the pump flange. If the pump is installed with a suc-
tion lift arrangement (liquid level lower than the pump) and it
feeds an open circuit, install a foot valve at the end of the suc-
tion line and use a hose connected to the pump.
WARNING!
Ensure that available NPSH is greater than NPSH
required by the pump. Insufficient NPSH will
result in cavitation, which reduces pump
performance and may result in damage to the
pump. Refer to the pump curves.
8.2.5 ELECTRICAL CONNECTION
WARNING!
Electrical connections must be made by qualified
personnel. Motor and circuit protection must be
appropriately sized. Observe all applicable codes
and standards.
Connect the electrical supply to the pump, following the motor
manufacturer's instructions.

8.3 FLANGE LOADING AND TIGHTENING TORQUES

FLANGE TIGHTENING TORQUE
Flange
Bolt Size
F
ANSI
1-1/4"
5/8"
L
ANSI
1-1/4"
5/8"
N
-
1-1/4"
M10
F
ANSI
2"
5/8"
L
ANSI
2"
5/8"
N
-
2"
M12
F
ANSI
2-1/2"
5/8"
F
ANSI
2-1/2"
3/4"
F
ANSI
3"
5/8"
F
ANSI
3"
3/4"
F
ANSI
4"
5/8"
F
ANSI
4"
3/4"
Strain X
Strain Y [lb]
[lb]
[N]
[lb]
61
270
52
61
270
52
61
270
52
110
490
101
110
490
101
110
490
101
472
2100
416
236
1050
208
562
2500
506
281
1250
253
753
3350
674
377
1675
337
Torque X
Torque Y
[lb-ft]
[Nm]
[lb-ft]
170
230
207
170
230
207
170
230
207
251
340
310
251
340
310
251
340
310
885
1200
1106
442
600
553
959
1300
1180
479
650
590
1069
1450
1291
535
725
645
Tightening torque
No. of
Bolts
[lb-ft]
[Nm]
4
52
70
4
52
70
2
22
30
8
26
35
8
26
35
2
37
50
4
59
80
8
59
80
4
59
80
8
59
80
8
59
80
8
74
100
Strain Z [lb]
[N]
[lb]
[N]
230
47
210
230
47
210
230
47
210
450
90
400
450
90
400
450
90
400
1850
382
1700
925
191
850
2250
461
2050
1125
230
1025
3000
607
2700
1500
303
1350
Torque Z
[Nm]
[lb-ft]
[Nm]
280
140
190
280
140
190
280
140
190
420
221
300
420
221
300
420
221
300
1500
811
1100
750
406
550
1600
848
1150
800
424
575
1750
922
1250
875
461
625
9
rev. 01/19

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