Colfax Imo Pump E4 BE Series Installation manual

This instruction is valid for all standard high pressure pumps:
E4, D4 and D6
Contents Page
Pump identication 2
Installation 3
Start-up 8
Trouble shooting 10
!
Before commencing any work, read this instruction carefully! Failure to comply
with these instructions may cause damage and personal injury!
Medium and high
pressure pumps
Installation and Start-up Instruction
Screw pumps
MH 1202.04 GB

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MH 1202.04 GB
These instructions are valid for all medium and high pressure pumps as specied in the Pump identication
chart below.
(1) See Product Description or
Maintenance Instruction
(2) B = Flange mounting
F = Foot mounting
J =For vertical tank mounting
with prolonged inlet pipe
Option
A101/G101
A246/G246Pumps with CCW-rotation
A337
T =For vertical tank mounting with
mounted strainer
3) E = Without valve
P = With Valve
Y = External ball bearing
Z = Internal ball bearing
Com-
ments
Pump
name Material
pump
casing
(1)
Shaft
seal
design
(1)
Moun-
ting
(2)
Valve/
other
(3)
Design
modifi-
cation
(1)
Rotor
lead
(1)
Size
(1) Also valid
for
option
025
032
038
045
052
060
070
1
4
K
L
N
L
Y
B
J
T
EA101
A141
A259
A260
A314
A337
G067
G101
G259
G260
G314
E4 xxBE
025
032
038
045
052
060
070
K
L
N
I
L
N*
B
J
T
E
P
A056
A101
A117
A246
A434
G056
G101
G117
G246
G333
D4 xxBE R
T
V
E
R
V
2
038
045
052
060
070
K
N
S B
F
J
T
Y
Z
D6 xxBx R
T
V
3
E4 xxTE
E4 xxJE
D4 xxBP
D4 xxTE D4 xxJE
D6 xxTx D6 xxJx
A101
A309
D6 xxFx
* Only sizes 025-038
Pump identication

max 90°
min 60°
max 90°
min 60°
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MH 1202.04 GB
Fig. 2 Liing of pump
Identification of safety instructions
Non compliance of safety instructions
identified by the following symbol -
could affect safety for persons.
Safety instructions where
electrical safety is involved,
are identified by:
Safety instructions which shall be considered for
reasons of safe operation of the pump or pump
unit and/or protection of the pump or pump unit
itself are marked by the sign: ATTENTION
Installation
BEFORE COMMENCING ANY WORK, READ THIS INSTRUCTION CAREFULLY!
Design limitations and technical data for each pump are found in the Product description.
Installation of IMO AB medium and high pressure pumps does not require special skills. However, these
instructions presume that the work is carried out by experienced ers.
Maintenance and service instructions, which are specic for each pump are presented in a separate docu-
ment.
Fig. 1 Clean and dry environment
!
Failure to comply with these instructions
may cause damage and personal injury!
Transport and storage
The pump shall always be protected against ingress
of water and other impurities. The pump shall
always be stored in a clean, dry and warm environ
ment. The pump is delivered with the internals oiled
and with protective covers. These covers should
remain in place for as long as possible during the
mounting and installation procedure but must be
removed before start up.
!
All work carried out on the pump has to be
performed in such a manner that risks for
personal injury are observed!
Lifting of pump
!
 Allpumpsshouldbeliedwithstrapsse-
curelyaachedtothepumporpumpunit,so
that the centre of gravity is located between
the straps in order to avoid tipping of the
pump.
Liing of the complete pump unit with the liing
device aached to the motor, should be avoided
as the motor’s liing provisions may not be able to
carry the combined weight of the pump and motor.
!
 Whenliingacompletepumpunit,using
slingsorhooksaachedtothepumpor
connecting frame make sure that the centre
of gravity is located below the points of at-
tachmentorthatsucientprotectionagainst
tipping is provided otherwise.

t
D4 ø max 0.3 mm
D6 ø max 0.4 mm
E4 ø max 0.4 mm
max
0.1°
D
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MH 1202.04 GB
Fig. 3 Alignment of the IMO AB standard coupling
Fig. 4 Distance between coupling halves
(IMO AB standard coupling)
Outer diameter
of coupling
(mm)
Distance between
coupling halves
(mm)
Outer diameter
of coupling
(mm)
Distance between
coupling halves
(mm)
50
67
82
97
112
128
2.0
2.5
3.0
3.0
3.5
3.5
148
168
194
214
240
3.5
3.5
3.5
4.0
4.0
Mounting
The pump must be securely mounted on a rm
stable foundation and positioned so that it is easily
accessible for inspection and servicing.
Provisions for collecting oil spillage when servicing
the pump are to be installed.
ATTENTION
The installation must always be designed to
minimise damage should an operational or
functional failure occur.
Provisions should be installed to collect oil
spillage if a functional failure results in a
broken pipe or pump housing.
The pump installation should be provided
with an emergency shutdown to avoid dam-
ages due to overheating or if the oil volume
is below a minimum tank level.
Alignment and shaft couplings
The pump shall be connected to its driver via a ex-
ible sha coupling. The pump may also be driven
via gears or pulleys as specied in the Product De-
scription, provided the radial forces are kept within
the specied range. We recommend that the pump
is connected via our standard connecting frame and
IMO AB standard coupling.
The coupling and alignment shall be selected not to
exert any axial or radial loads on the sha ends.
IMO AB standard couplings shall have a distance
between the coupling halves as per table, g. 4 the
coupling halves shall be secured by lock screws.
For other types of couplings, please refer to respec-
tive maker’s instructions.
For direct driven pumps the alignment between
pump and motor shas must be kept within the
limits according to g. 3 and 4.
!
Measures shall be provided to avoid acci-
dentalcontactwiththerotatingshacou-
pling. Any installed coupling guard
shallpermiteasyaccesstothepumpsha
for maintenance and inspection of the
pump bearing and seal housing.
!
When handling liquids that may harm skin
use gloves and/or protective clothing.
!
When handling liquids which may involve
rehazardsappropriateprecautionstoavoid
danger are to be taken.
!
In case of failure for a system with elevating
pressureuidjetsmaycauseinjuryand/or
damage.
See table below An angular
misalignment of
0.1° corresponds
to approx. 0.2 mm
deviation/100 mm.
Angular
alignment
Distance
between
coupling halves
Circular
run-out
Outer diameter Distance between Outer diameter Distance between
of coupling coupling halves of coupling coupling halves
(D mm) (t mm) (D mm) (t mm)

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MH 1202.04 GB
Fig. 7 De-aeration
Pipe connections
The pipe work should be installed and supported so
as not to exceed any permied loads and transfer to
the pump casing.
The pipe work should be tight in order to avoid
leakage and ingress of foreign particles and/or air.
Shut o valves should be installed in the discharge
line and when appropriate in the suction line (not
tank mounted version), so that the pump can be
hydrauli cally isolated.
Welding of counter anges must be performed in
such a way that no weld slag etc. can enter into the
pump. Pumps delivered with counter anges from
IMO AB have a protection plate which shall be re-
moved aer that welding is completed.
Suction line
The suction line should be designed so that the total
pressure drop, measured at the pump inlet ange,
does not exceed the suction capability of the pump.
Make a proper calculation of the suction line includ-
ing components such as valves, strainer, pipe bends
etc.
Generally, the pressure drop in the suction line
should be as low as possible, which is achieved if
the suction pipe is short, straight and has a suitable
diameter.
The velocity in the suction line should be kept in the
range 0.5  1.2 m/s.
The suction line must be equipped with a port that
allows lling the pump before start.
Discharge line
The discharge line should be dimensioned to keep
the velocity in the range 1  3 m/s.
De-aeration
In installations with negative suction head, where
the pump might be started against a pressurized
system, a deaeration pipe with a suitable dimen-
sioned orice has to be installed, see g. 7. The
de-aeration pipe should be connected to the highest
point of the outlet pipe.
This must also be installed when the pump is used
as an standby pump.
Fig. 5 Pipe connections
Fig. 6 Suction line

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MH 1202.04 GB
Cleanliness
The pump has to be protected from foreign maer,
such as weld slag, pipe scale, etc., that could enter
the pump via the suction line. If the cleanliness of
the system cannot be guaranteed, a strainer must be
installed in the inlet pipe near the pump.
The size of the strainer should be selected so that it
is large enough to allow adequate pressure at the
pump inlet. The pressure drop across the strainer
should preferably not exceed 0.1 bar at max. ow
rate and operating viscosity. A vacuum gauge
between the strainer and the pump inlet is recom-
mended to indicate when the strainer needs clean-
ing.
Some pumps are equipped with inlet strainers
in standard design, mesh size 0.5 mm. For other
pumps, strainers with the same mesh size are recom-
mended.
To further extent the service life of the pump im-
proved cleanliness is recommended.
For hydraulic oils a cleanliness of at least 19/16
according to ISO 4406 at pressure > 16 bar and at
least 20/16 at lower pressure is recommended.
Liquid trap
In some mounting arrangements (xxBx and xxFx)
the pump may not retain the liquid at stand still. In
such installations the suction pipe should be ar-
ranged so it forms a liquid trap together with the
pump. See g. 9.
Fig. 9 Liquid trap
Fig. 8 Cleanliness

bar
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MH 1202.04 GB
Fig. 10 External pressure relief valve
Safety valve
Pumps not equipped with an internal valve require
a separate relief valve connected to the delivery pipe
to limit uid pressure. Locate the pressure relief
valve as close to the pump outlet port as possible,
preferably upstream of a check valve, where so
equipped. The return line from the valve should be
run back to a suitable position in the tank to limit the
temperature rise in the pump when overow takes
place.
Set the valve opening pressure as low as correspon-
ding to satisfactory system performance. Do not
choose an opening pressure in excess of the maxi-
mum operating pressure of the pump.
The D4 xxBP pump is supplied from IMO AB with
an integrated pressure relief valve designed for
external overow. The return line from the pressure
relief valve should be run back to the tank to limit
the temperature rise in the pump when overow
takes place.
Pressure testing and ushing
The system must be ushed with the pump replaced
by a dummy pipe and pressure tested before con-
necting the pump.
If corrosive liquid, such as water is used, the system
must be thoroughly drained, dried and protected
against corrosion before the pump is reinstalled as
otherwise the pump might be damaged before start-
up due to internal corrosion.
!
 Oilleakagemaymaketheoorslippery
and cause personal injury.
Pressure gauge
There should be a tap point for connecting a pres-
sure gauge to the delivery pipe to adjust and check
the seing of the pressure relief valve.
Some pumps are equipped with pressure taps.
Fig. 11 Pressure gauges

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MH 1202.04 GB
Start-up
Before starting
Aer installation or whenever it can be assumed
that the pump has been emptied, the pump must be
thoroughly lled with liquid. See chapter ”Suction
Line ”, page 5.
!
Make sure the prime mover is disconnected
and can not be started accidentally.
While lling the pump rotate the sha by hand. If
the sha is not accessible, rotation can be performed
from the motor fan, to ensure that the rotor bores
and the sha seal com part ment is lled.
!
 Donotforgettotthemotorfancoveragain
before making start of motor possible.
Open the shuto valves in the inlet and delivery
pipes to the full extent. Set pump pressure relief
valve at the lowest opening pressure. The pump is
now ready for starting.
If the suction pipe cannot be completely lled, it is
important to ensure that the trapped air is evacuated
without any pressure build up.
(See g. 7 De aeration).
ATTENTION
Starting a dry pump is likely to cause
damage to the pump.
Direction of rotation
When the pump is ready to be started, switch the
motor briey on and o and check that the drive
motor rotates in the correct direction as indicated by
the rotation arrow.
Check the direction of rotation by watching the fan
on the electric motor.
Fig. 12 Filling the pump before starting
Fig. 13 Direction of rotation

Bar
0
1
2
3
4
5
6
7
8
9
10
Bar
4
5
6
7
8
14
20
26
32
38
44
PLPH
PH
PL
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MH 1202.04 GB
Starting
Set the pumps pressure relief valve to low pressure
and start the pump with the valves in the inlet and
delivery pipes fully open. When the pump begins
discharging uid, ”has primed”, raise the pressure
to 1.01.5 bar or slightly below the system pressure
if this is lower. Allow the pump to run for a few
minutes until air has been evacuated from the sys-
tem and the uid is free of bubbles, adjust the pump
pressure for the rated value of the system.
If the pump fails to prime, do not run it for more
than a few seconds. Repeat the start procedure a few
times at intervals of a few minutes. If this proves
unsuccessful, there is a fault condition in the system.
See ”Trouble shooting”.
ATTENTION
Because of design principle the D4 pump
must reach a minimum of discharge pres-
sure(asperg.14)immediatelyaerstartto
prevent failure.
!
If operating temperature exceeds 60°C, ap-
propriate measures to avoid burn injury
shall be provided.
!
Use hearing protections whenever high
noise can be expected from pump, motor
and/or environment.
Fig. 14 Minimum discharge pressure at given inlet
pressure for D4 pump

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MH 1202.04 GB
Trouble shooting
 Wrong direction of rotation.
- Suction line is not open or pres-
sure drop in the suction line is
too high.
 Major air leakage into the suc-
tion line.
- The pump cannot evacuate the
air through the discharge line
due to excessive counter pres-
sure.
 The pump is not primed.
- The pressure relief valve is set
below the counter pressure.
- The pressure relief valve is set
too low (Discharge pressure also
low).
 Something is restricting the ow
in the suction line. (This would
usually cause noise).
 The pumped liquid contains
a signicant amount of com
pressible gas, such as free air.
(This would usually cause
noise).
- The pressure relief valve is set
too low.
 System open for unintendent
bypass or malfunctioning or
wrongly operated components
in the system.
- A too small pump has been
chosen.
- The pressure relief valve is set
too high.
- The oil is too cold (or has higher
viscosity than anticipated).
- Counter pressure in the dis-
charge line is too high.
1.Thepumpcannotbeprimed.
Connecting and discon-
necting of electric cables
must be done only by
personnelauthorizedto
do such work.
2.Noow.
3. Flow too low.
4. Pressure too low.
5. Pressure too high.
Reverse the terminal connection
on electric motor.
Check all components in suction
line. The inlet condition should
be checked with a vacuum
gauge at the pump inlet.
Check the suction line.
See deaeration (page 5).
See above.
Readjust the pressure relief
valve to a value above counter
pressure.
Readjust the pressure relief
valve.
Check all components in the suc-
tion line.
See the chapter on Noise and
Vibrations. (Page 11).
Readjust the pressure relief
valve.
Check the components in the
discharge line.
Check the valve. See the Mainte-
nance and Service instruction for
the pump.
Readjust the pressure relief
valve.
Reduce the pressure seing until
operational temperature has
been reached.
Check the dimensioning of the
discharge line.
What to doDisturbance Cause

11
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MH 1202.04 GB
What to doDisturbance Cause
6. Drivemotordicultto
start or tends to stop by
tripping the motor over-
load relay.
Connecting and dis-
connecting of electric
cables must be done
only by personnel
authorizedtodosuch
work.
7. Noise and vibrations.
!
Monitor the pump func-
tion and shut down if
any sign of malfunction
is noticed.
Connecting and dis-
connecting of electric
cables must be done
only by personnel
authorizedtodosuch
work.
 Counter pressure too high.
 Liquid too cold.
- Motor is undersized for the pre-
vailing conditions.
 Electrical power supply faulty.
 Motor overload relay set too low
or is faulty.
 Incorrect seing of Y/D starter.
 The ow to the pump is insuf-
cient.
 Insucient support of pipe
work.
 Wrong alignment.
 Air leakage into the suction line.
 Free air in the liquid or gas
cavitation.
 Faulty electrical supply.
See above: Pressure too high.
Readjust the pressure relief valve
to a lower value. Thus the power
consumption for the pumping is
relieved and overloading due to
the high viscosity may be avoid-
ed. When the liquid has reached
normal temperature and thus
ows easily, the pressure relief
valve is reset to normal pressure.
Check the motor.
Check the power supply, the mo-
tor and motor connection.
Readjust or replace the relay.
Readjust the seing of the start-
ing sequence.
Check the liquid level in the tank.
See also chapter: The ow is too
low.
Check for pipe vibrations in
the pump connections. Check
that the pipes are suciently
clamped.
Check alignment, see page 4.
Check the suction line for air
leakage.
Contact your IMO representative.
Check all three phases of the
supply.