Barmesa Pumps BMV Series Instruction manual

BMV
series
Installation, Operation &
Maintenance Manual
Vertical Multi-Stage
IMPORTANT! - Read all instructions in this manual before operating or servicing
a pump.
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Before installation, read the following
instructions carefully. Failure to
follow instruction and Safety
information could cause serious
bodily injury, death and/or property
damage. Each Barmesa product is
carefully inspected to insure proper
performance. Closely following these
instructions will eliminate potential
operating problems, assuring years
of trouble-free service.
01
General Safety Information
“Danger” indicates an
imminently hazardous situation
which, if not avoided, WILL result in
death or serious injury.
“Warning” indicates
an imminenty hazardous situation
which, if not avoided, MAY result in
death or serious injury.
“Caution” indicates a
potentially hazardous situation
which, if not avoided, MAY result in
minor or moderate injury.
WARNING
DANGER
CAUTION
IMPORTANT! - Barmesa Pumps is not
responsible for losses, injury or
death resulting from failure to
observe these safety precautions,
misuse, abuse or misapplication of
pumps or equipment.
Installation, wiring, and
junc tion connections must be in
accordance with the National Electric
Code and all applicable state and local
codes. Requirements may vary depending
on usage and location.
WARNING
I n s t a l l a t i o n a n d
servicing is to be conducted by
qualified personnel only.
WARNING
Do not us these pumps
i n w a t e r o v e r 1 0 4 º F. H i g h
temperature units 200º F. Do not
exceed manufactures recommended
maximum performance, as this could
cause the motor to overheat.
WARNING
Ground Fault Circuit
Interrupter (GFCI) to be used with
plug-in type power cord.
WARNING
A L L R E T U R N E D
P R O D U C T S M U S T B E
CLEANED, SANITIZED, OR
DECONTAMINATED PRIOR TO
SHIPMENT, TO INSURE EMPLOYEES
WILL NOT BE EXPOSED TO HEALTH
HAZARDS IN HANDLING SAID
MATERIAL. ALL APPLICABLE LAWS
AND REGULATIONS SHALL APPLY.
Keep clear of suction and
discharge openings. Do not
insert fingers in pump with
power connected; the rotating cutter
and/or impeller can cause serious
injury.
Always wear eye protection
when working on pumps. Do
not wear loose clothing that
may become entangled in moving
parts.
Pumps build up heat
and pressure during
operation. Allow time
for p umps t o co ol
DANGER
before handling or servicing the
pump or any a ccessor y items
associated with or near the pump.
T h i s p u m p i s n o t
i n t e n d e d f o r u s e i n
swimming pools or water
installations where human
DANGER
contact with pumped fluid.
Risk of electric shock. To
reduce risk of electric shock,
always disconnect pump
from power source before
DANGER
handling any aspect of the pumping
system. Lock out power & tag.
Do not lift, carry or
hang pump by the electrical
cable s. D a m a ge to th e
electrical cables can cause
DANGER
shock, burns or death. Never handle
connected power cords with wet
hands. Use appropriate lifting device.
S u m p a n d s e w a g e
pumps often handle materials which
could cause illness or disease. Wear
adequate protective clothing when
working on a used pump or piping.
Never enter a basin after it has been
used.
WARNING
Failure to permanently
ground the pump, motor and
controls before connecting
to power can cause shock,
DANGER
burns or death.
These pumps are not to
be installed in locations
classified as hazardous in
accordance with the National
Electric Code, ANSI/NFPA 70.
DANGER
The Uniform Plumbing
Code (UPC) states that sewage
systems shall have an audio and visual
alarm that signals a malfunction of the
systems, that are required to reduce
the potencial for property damage.
WARNING
1 Phase Models
Amps: Volts:
3 Phase Models
Amps L1-2: Volts L1-2:
Amps L2-3: Volts L2-3:
Amps L3-1: Volts L3-1:
Model Number: _____________________
MFG Date: ____________
PHASE: ______ HP: __________________
IMPORTANT! - Prior to installation,
record Model Number, MFG Date,
Amps, Voltage, Phase and HP from
pump name plate for the future
reference. Also record the Voltage and
Current Readings at Startup:
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Description
The non-self priming vertical multi-stage centrifugal pump is driven by a standard electric motor. The motor
output shaft directly connects with the pump shaft through a coupling. The pressure-resistant cylinder and
flow passage components are fixed between pump head and inlet & outlet section with stay bolts. The inlet
and outlet are located at the pump bottom at the same plane. This kind of pump can be equipped with an
intelligent protector to effectively prevent it from dry-running, out-of-phase and overload.
Features
High efficient
Low noise
A little corrosive liquid resistance
Compact structure
Good appearance
Small volume
Light weight
Easy to service
Good seal performance
etc.
Applications
Pumped liquids: low viscosity, neutral, non-explosive liquids, not containing solid particles or fibres. The
liquid must not attack the pump materials chemically.
Boiler water supply and condensing system.
Water treatment, filtration system.
Food and beverage industries.
Pressure boosting in high-rise buildings.
Farmland irrigation, nursery irrigation and golf court irrigation.
Industry cleaning system.
Liquid conveying, circulation and boosting.
Hot and cool water.
Operation conditions
Medium temperature: normal temperature type -15° C ~ +70° C.
Hot water type -15° C ~ +120° C.
Flow: 0.4 ~ 180 m³/h.
Medium pH range: pH 5 - 9.
Maximum ambient temperature: +40° C.
Maximum altitude: 1000 m.
Minimum inlet pressure: Refer to BMV catalog.
When pumping liquids with a density and/or viscosity higher than that of water, use motors
with correspondingly higher outputs, if required.
02
Applications & Conditions
CAUTION
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Nomenclature
Nameplate
To each pumping equipment is placed an identification plate, as shown below:
03
Definition of Model
B M V 1 - 2 5 0 - 3 0 3
PHASE
HP
STAGE (x10)
RATED FLOW (m³/h)
MULTI-STAGE PUMP
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25
26
27
23
24
28
29
25
26
30
23
31
32
25
26
33
34
18
35
39 40 14 40 41383736
01
02
03
04
06
08
11
13
14
16
18
19
21
22
23
20
09
05
10
07
12
17
15
04
Structure
The pump is mainly composed of motor, pump head, diffuser, impeller, cylinder, inlet & outlet chamber,
pump shaft, mechanical seal and so on. Refer to Fig. 1.
Key parts of the pump, diffuser, impeller, cylinder, shaft, arc all made of stainless steel. Also the material of
pump head and inlet & outlet chamber is made of stainless steel.
Mechanical seal is a single face seal. Seal part is cemented carbides / carbon. Support part of support
diffuser is made of tungsten carbide.
Figure 1A: (BMV1 - BMV4)
For Repair Part Please supply: Model Number and Serial as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.
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05
Structure
ITEM DESCRIPTION QTY. UNIT
01 MOTOR 1 Pc.
02 COUPLING 1 KIT
03 HEXAGON SOCKET HEAD SCREW 4 Pc.
04 COUPLING GUARD (NO NICK) 1 Pc.
05 MECHANICAL SEAL 1 Pc.
06 SCREW M4x8 4 Pc.
07 COUPLING 1 Pc.
08 SCREW, WASHER 4 KIT
09 COUPLING GUARD 1 Pc.
10 NUT M12, WASHER 12 4 KIT
11 STAY BOLT 4 Pc.
12 AIR VENT SCREW 1 Pc.
13 AIR VENT NUT 1 Pc.
14 O-RING 16mm x 2.65mm 2 Pc.
15 LINING 1 Pc.
16 CORRUGATED SPRING 1 Pc.
17 UPPER DIFFUSER 1 Pc.
18 O-RING 136.5mm x 3.3mm 2 Pc.
19 SHAFT 1 Pc.
20 SHAFT PIN 1 Pc.
21 CIRCLIP COVER 1 Pc.
22 SEAL SLEEVE (ONLY FOR BMV4) 1 Pc.
23 IMPELLER 3 Pc.
24 IMPELLER SLEEVE 1 Pc.
25 NECK RING COVER 3 Pc.
26 NECK RING 3Pc.
27 DIFFUSER 1 Pc.
28 IMPELLER SLEEVE (S) 1 Pc.
29 BEARING 1 Pc.
30 SUPPORT DIFFUSER 1 Pc.
31 FIRST IMPELLER COVER 1 Pc.
32 NUT M8, WASHER 8 1 KIT
33 INDUCER 1 Pc.
34 CYLINDER 1 Pc.
35 FLANGE TYPE INLET & OUTLET CHAMBER 1 Pc.
36 CIRCLIP 2 Pc.
37 FLANGE 2 Pc.
38 FLANGE TYPE BASE PLATE 1 Pc.
39 O-RING RETAINER 1 Pc.
40 O-RING 8mm x 2.65mm 1 Pc.
41 DRAINAGE NUT 1 Pc.
42 DRAINAGE SCREW M10 1 Pc.
Table 1A: (BMV1 - BMV4)
For Repair Part Please supply: Model Number and Serial as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.
PART No. MODEL
70120001 BMV1-90-103
70120002 BMV1-110-153
70120003 BMV1-130-153
70120004 BMV1-170-203
70120005 BMV1-210-303
70120006 BMV1-230-303
70120011 BMV2-60-153
70120012 BMV2-70-203
70120013 BMV2-110-303
70120014 BMV2-150-403
70120015 BMV2-180-503
70120021 BMV3-80-153
70120022 BMV3-110-203
70120023 BMV3-150-303
70120024 BMV3-170-303
70120025 BMV3-190-403
70120026 BMV3-230-403
70120027 BMV3-250-503
70120031 BMV4-60-303
70120032 BMV4-80-403
70120033 BMV4-100-503
70120034 BMV4-120-503
70120035 BMV4-160-753
barmesapumps.com

06
Structure
16
01
02
03
09
11
12
17
18
20
21
16
19
13
14
05
08
06
04
07
10
15
27
23
24
25
29
30
23
32
33
41 42 14 43 44
28
31
24
25
35
34
36
37
23
24
25
22
26
38 39 40
Figure 1B: (BMV8 - BMV20)
For Repair Part Please supply: Model Number and Serial as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.
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ITEM DESCRIPTION QTY UNIT
01 MOTOR 1 Pc.
02 COUPLING 1 KIT
03 HEXAGON SOCKET HEAD SCREW 4 Pc.
04 MECHANICAL SEAL 1 Pc.
05 COUPLING GUARD (NO NICK) 1 Pc.
06 SCREW, WASHER 4 KIT
07 COUPLING 1 Pc.
08 SCREW M4x8 4 Pc.
09 AIR VENT NUT 1 Pc.
10 COUPLING GUARD 1 Pc.
11 STAY BOLT 4 Pc.
12 AIR VENT SCREW 1 Pc.
13 NUT M16, WASHER 16 4 KIT
14 O-RING 16mm x 2.65mm 2 Pc.
15 LINING 1 Pc.
16 O-RING"169mm x 3.3mm 2 Pc.
17 CYLINDER 1 Pc.
18 SHAFT 1 Pc.
19 SHAFT PIN 1 Pc.
20 ADJUSTING RUBBER 1 Pc.
21 UPPER DIFFUSER 1 Pc.
22 CIRCLIP COVER 1 Pc.
23 IMPELLER 3 Pc.
24 NECK RING COVER 3 Pc.
25 NECK RING 3Pc.
26 DIFFUSER 1 Pc.
27 IMPELLER SLEEVE 1 Pc.
28 SUPPORT DIFFUSER 1 Pc.
29 IMPELLER SLEEVE (L) 1 Pc.
30 BEARING 1 Pc.
31 IMPELLER SLEEVE (S) 1 Pc.
32 FIRST IMPELLER COVER 1 Pc.
33 NUT M12, WASHER 12 1 KIT
34 STRAP 2 Pc.
35 INDUCER 1 Pc.
36 SCREW M8x20 2 Pc.
37 FLANGE TYPE INLET & OUTLET CHAMBER 1 Pc.
38 CIRCLIP 2 Pc.
39 FLANGE 2 Pc.
40 FLANGE TYPE BASE PLATE 1 Pc.
41 O-RING RETAINER 1 Pc.
42 O-RING 8mm x 2.65mm 1 Pc.
43 DRAINAGE NUT 1 Pc.
44 DRAINAGE SCREW M10 1 Pc.
07
Structure
Table 1B: (BMV8 - BMV20)
For Repair Part Please supply: Model Number and Serial as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.
PART No. MODEL
70120041 BMV8-50-403
70120042 BMV8-60-503
70120043 BMV8-80-753
70120044 BMV8-100-1003
70120045 BMV8-l20-1003
70120046 BMV8-l40-1503
- BMV12-20-303
- BMV12-50-753
- BMV12-70-1003
- BMV12-100-1503
- BMV12-140-2003
70120051 BMV16-40-1003
70120052 BMV16-60-1503
70120053 BMV16-80-2003
70120054 BMV16-100-2503
- BMV20-40-1003
- BMV20-60-1503
- BMV20-80-2003
- BMV20-100-2503
barmesapumps.com

08
Structure
01
04
02
03
06
07
09
11
14
16
15
20
21
24
25
08
05
10
12
13
15
17
18
18
22
23
19
28
29
30
31
26
27
32
33
27
28
29
30
34
26
27
28
29
30
35
36
38
37
44
39
4342 15 13
41
40
Figure 1C: (BMV32 - BMV65)
For Repair Part Please supply: Model Number and Serial as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.
barmesapumps.com

09
Structure
ITEM DESCRIPTION QTY. UNIT
01 MOTOR 1 Pc.
02 COUPLING 1 Pc.
03 HEXAGON SOCKET HEAD SCREW 4 Pc.
04 SCREW M4x8 4 Pc.
05 BRACKET 1 Pc.
06 COUPLING GUARD 2 Pc.
07 HEX. SCREW, NUT, WASHER 4 KIT
08 HEXAGON SOCKET HEAD SCREW 4 Pc.
09 HEXAGON SOCKET HEAD SCREW 4 Pc.
10 SEAL COVER 1 Pc.
11 NUT, WASHER 2 KIT
12 MECHANICAL SEAL 1 Pc.
13 DRAINAGE SCREW M10 3 Pc.
14 AIR VENT SCREW 1 Pc.
15 O-RING 4 Pc.
16 AIR VENT NUT 1 Pc.
17 COUPLING 1 Pc.
18 O-RING 2 Pc.
19 CYLINDER 1 Pc.
20 STAY BOLT 4 Pc.
21 SHAFT 1 Pc.
22 HEXAGON SOCKET HEAD SCREW, WASHER 4 KIT
23 ADJUSTING RUBBER 1 Pc.
24 UPPER DIFFUSER 1 Pc.
25 STRAP 2 Pc.
26 IMPELLER NUT 2 Pc.
27 CONE 3 Pc.
28 IMPELLER 3 Pc.
29 NECK RING COVER 3 Pc.
30 NECK RING BASE ASSEMBLY 3Pc.
31 SUPPORT DIFFUSER 1 Pc.
32 INTERMEDIATE BEARING 1 Pc.
33 IMPELLER NUT FOR SUPPORT DIFFUSER 1 Pc.
34 DIFFUSER 1 Pc.
35 INDUCER 1 Pc.
36 BOTTOM BEARING 1 Pc.
37 SOCKET HEAD SCREW, WASHER 4 KIT
38 BOTTOM SLEEVE 1 Pc.
39 FLANGE TYPE INLET & OUTLET CHAMBER 1 Pc.
40 LINING 1 Pc.
41 SOCKET HEAD SCREW, WASHER 1 KIT
42 CIRCLIP 2 Pc.
43 FLANGE 2 Pc.
44 FLANGE TYPE BASE PLATE 1 Pc.
Table 1C: (BMV32 - BMV65)
For Repair Part Please supply: Model Number and Serial as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.
PART No. MODEL
70120061 BMV32-32-1003
70120062 BMV32-42-1503
70120063 BMV32-52-2003
70120064 BMV32-60-2503
70120065 BMV32-82-3003
70120066 BMV32-90-4003
70120073 BMV42-20-2003
70120070 BMV42-30-2503
70120071 BMV42-42-3003
70120074 BMV42-40-4003
70120075 BMV42-50-4003
70120072 BMV42-60-5003
70120093 BMV65-20-3003
70120091 BMV65-30-4003
70120092 BMV65-42-5003
70120094 BMV65-52-6003
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10
Installation & Connection
Handling
When lifting the pump, use the motor eyebolts.
Installation
The pump should be installed in a well ventilated and frost-free position. The distance between pump-
motor and other objects should be at least 6 inches in order to have enough air to cool the motor.
The inlet pipe shall be as short as possible in order to reduce the head loss of the inlet.
Ensure that the check valve is installed in the pipe line system before the pump is installed. If pump is
used for boiler water supply, a check valve must be installed in the piping between pump and boiler.
Pump shall be installed in a concrete base or other similar base with suitable height. It can also be
installed in fixed grounds or fixed brackets on the wall.
Pay attention not to let the weight of pipe system on pump to prevent pump from damage.
When installation, motor is not allowed to be hung upside down.
Arrow on the inlet and outlet chamber shows the direction of flow of liquid through the pump. Check
whether the liquid can flow easily before starting pump.
Before pump installation, the inlet pipe line shall be cleaned. If there is impurities in the pipe, it is
necessary to install a strainer at 20 - 40 inches in front of the pump inlet (particularly recommended for
pump with flow less than 8 m³/h).
The air locks shall be avoided when installing the inlet pipe line. See Fig. 3.
If the outlet globe valve might be closed (or the flow is decreased to be zero), a bypass shall be installed
in outlet pipeline to ensure adequate lubricating and cooling water to pass the pump.
CAUTION
Figure 2
Figure 3
Air Air
Air
Wrong Correct
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B1
B2
D2
D3
E
G
G1
C
M
M1
DN
4-D2
P2
P
P1
n-D1
G1/2
H
G1/2
D1
Pump size and dimension is as follows.
11
Dimensions
Figure 4
Table 2
BMV1 BMV2 BMV3 BMV4 BMV8
BMV12 BMV16 BMV20 BMV32 BMV42 BMV65
DN 32 40 65 80 100
P1 107 120 150
P1 100 110 145 160 180
P2 140 145 185 200 220
n-D1
C 280 320 365 380
E 80 105
H 25 30
RATED
FLOW PN25-40 PN16-25 PN16
8x Ø18
250 300
75
32
90
35
140
45
50
115
85
60
25
80
125
160
4x Ø14
PN25
4x Ø18
MODELS
DIMENSIONS
(mm)
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Table 3
12
Dimensions
B1 B2 B1+B2 D1 D2
BMV1-90-103 16 10 25 7 6 55
BMV1-110-153 17 10 27 7 6 62
BMV1-130-153 18 10 28 7 6 62
BMV1-170-203 22 11 33 7 6 66
BMV1-210-303 24 11 36 7 6 77
BMV1-230-303 26 11 37 7 6 88
BMV2-60-153 13 10 23 7 6 55
BMV2-70-203 14 11 26 7 6 66
BMV2-110-303 17 11 29 7 6 77
BMV2-150-403 21 12 33 8 6 88
BMV2-180-503 23 13 36 9 7 99
BMV3-80-153 15 10 24 7 6 55
BMV3-110-203 17 11 29 7 6 66
BMV3-150-303 20 11 32 7 6 77
BMV3-170-303 22 11 33 7 6 77
BMV3-190-403 23 12 36 8 6 88
BMV3-230-403 26 12 39 8 6 88
BMV3-250-503 28 13 41 9 7 110
BMV4-60-303 16 11 27 7 6 77
BMV4-80-403 18 12 31 8 6 88
BMV4-100-503 21 13 34 9 7 99
BMV4-120-503 23 13 36 9 7 99
BMV4-160-753 28 17 45 10 8 154
BMV8-50-403 18 12 30 8 6 104
BMV8-60-503 19 13 32 9 7 115
BMV8-80-753 22 17 39 10 8 170
BMV8-100-1003 25 17 42 10 8 192
BMV8-120-1003 27 17 44 10 8 192
BMV8-140-1503 33 19 52 13 10 291
BMV12-20-303 14 11 26 7 6 84
BMV12-50-753 19 17 36 10 8 159
BMV12-70-1003 22 17 38 10 8 159
BMV12-100-1503 29 19 48 13 10 324
BMV12-140-2003 33 19 53 13 10 357
BMV16-40-1003 20 17 37 10 8 181
BMV16-60-1503 27 19 47 13 10 324
BMV16-80-2003 31 19 50 31 19 357
BMV16-100-2503 34 22 56 34 22 423
BMV20-40-1003 20 17 37 10 8 181
BMV20-60-1503 27 19 47 13 10 324
BMV20-80-2003 31 19 50 13 10 357
BMV20-100-2503 34 22 56 13 10 423
BMV32-32-1003 25 19 45 13 10 265
BMV32-42-1503 32 19 52 13 10 397
BMV32-52-2003 35 19 54 13 10 485
BMV32-60-2503 38 22 59 13 10 551
BMV32-82-3003 43 23 67 16 12 639
BMV32-90-4003 46 26 72 16 12 750
BMV42-20-2003 29 19 49 13 10 412
BMV42-30-2503 33 22 54 13 10 443
BMV42-42-3003 36 23 59 14 11 569
BMV42-40-4003 36 26 62 16 12 692
BMV42-50-4003 39 26 65 16 12 752
BMV42-60-5003 42 26 68 16 12 805
BMV65-20-3003 30 23 53 14 11 556
BMV65-30-4003 33 26 59 16 12 739
BMV65-42-5003 36 26 62 16 12 794
BMV65-52-6003 39 28 67 18 13 948
MODEL DIMENSION (inches) WEIGHT
(lb)
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Electrical connection
The electrical connections should be carried out by an authorized electrician.
To make sure the motor is suitable for the power supply, cables of the motor must be connected to
power supply according to the on the terminal box and the motor nameplate. figure
Motor shall be connected with a fast and effective motor starter, to ensure that the motor will not be
damaged by lack of phase, unstable voltage or overload. The motor shall be earthed reliably.
Before take apart the terminal box cover or dismantle pump, make sure that the power supply is
switched off.
Electrical connection and safety devices
The pump units should be connected to the power supply by the appropriately rated power cables
according to the motor ratings.
The pump units should always be equipped with safety devices as required in the standards (EN 809
and/or EN 60204-1) as well as by the national rules of the country where the pump is used.
Despite the rules of any country, the power supply to the pump unit must be equipped with at least
following electrical safety devices with appropriate ratings:
Emergency switch.
Circuit breaker (as a supply disconnecting (isolating) device as well as an overcurrent protective
device).
Motor overload protection.
Recommendation for Electrical Connection and Safety Devices
CAUTION
WARNING
13
Installation & Connection
Table 4
No. Power
input (HP)
Cable
connection
Input
current (A)
Cable spec
(mm²)
Circuit
breaker (A)
Thermal
protector (A)
1 0.5 Y 1 0.75 5 1.2
2 0.75 Y 1.4 0.75 5 1.7
3 1 Y 1.8 0.75 5 2.2
4 1.5 Y 2.6 1.0 5 3.1
6 2 Y 3.5 1 10 4.2
8 3 Y 4.9 1.5 10 5.9
11 4 Y 6.3 1.5 10 7.6
13 5 ∆ 8.2 2.5 20 9.8
15 7.5 ∆ 11 2.5 20 13.2
16 10 ∆ 15 4 20 18
17 15 ∆ 21 4 25 25.2
18 20 ∆ 29 6 32 34.8
19 18.5 ∆ 35 10 40 42
20 25 ∆ 41 16 60 49.2
21 40 ∆ 55 16 60 66
22 50 Λ 68 25 80 81.6
23 60 Λ 82 35 100 98.4
25 75 Λ 100 70 160 120
26 100 Λ 134 70 160 160.8
27 120 Λ 160 90 200 192
380V / 60Hz
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14
Start-up, operation & maintenance.
Before opening the terminal box, please shut off the power supply to prevent an electric shock.
Before opening the coupling guards, stop pump first to prevent body injuries.
When installing the pump, please fix the foundation bolts to prevent pump from falling.
Please fill grease to the pump when it required. For motor power is less than 7.5 HP, it is free of
filling grease. For motor power is equal or bigger than 7.5 HP, please fill grease every 5000 running
hours.
Read the label on the cylinder carefully before start-up.
1. Do not start the pump until it has been filled with water or liquid fully.
Fill water in pump in inverse pouring system.
Close the pump outlet valve, release air vent screw on the pump head, and open the inlet valve slowly
until stable water flows from the air vent s-crew. Then fasten the screw.
Open the check valve completely in the inlet pipeline. In open system, fill water in pump when liquid
surface is lower than pump. (A check valve shall be installed in the inlet pipe).
Close the pump outlet valve, release air vent screw and fill the liquid in pump through the air vent screw
hole until the pump and inlet pipe line are filled with water fully.
Fasten the air vent screw again.
Do not start the pump until it has been filled with liquid fully and air vented. Be careful the
direction of the air vent screw hole. Make sure the flowing water will not hurt persons or pump or its parts
and especially, prevent from hurting for the hot water application.
2. Check the rotary direction.
Switch on the power supply and view the rotary direction by viewing the motor fan. Arrow on the pump
head indicates the correct direction of rotation. That is, from the motor end, pump shall run counter-
clockwise.
3. Check before pump start-up.
Check whether the foundation bolt is fasten.
Check whether pump is filled with water fully.
Check whether the voltage of power supply is correct.
DANGER
WARNING
WARNING
CAUTION
CAUTION
CAUTION
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Check whether it turns correctly.
To make sure all pipe lines are connected tightly and can supply water normally.
The valves in the inlet pipe line are completely opened and the outlet valve shall be opened slowly after
the pump is started up.
Check the operation pressure if pressure meter is installed.
Check all the controls for normal operation. If the pump is controlled by pressure switch, check and
adjust the starting pressure and stopping pressure. Check the full load current to make sure it not
surpasses the max. current.
4. Frequency of pump starts: Pump should not be started too frequently. It is suggested pump shall not be
started more than 100 times per hour if the motor power is less or equal to 5 HP. When motor power is big
than 5 HP, pump shall not be started more than 20 times in one hour. If pump starts and stops too frequently,
control device shall be checked and adjusted to make pump not start and stop too frequently. Also, it is
necessary to check the installation.
5. Suggestion: When pump running, flow should be controlled at the range of 0.5 - 1.3 times of rated flow.
6. Pump which is installed according to this installation manual will work effectively and require a
little maintenance.
Mechanical seal will be adjusted automatically, the moving part and stationary part is lubricated and
cooled by the transfering liquid. When replace the mechanical seal, the user don't need to disassemble
the motor for power bigger than 10 HP.
The bearing in pump is lubricated by the transfering liquid.
7. Frost Protecting. Pump can be used in the system with anti-frozen measures to water. If the pump is
installed in easily frozen place, suitable antifreeze shall be added to the transfering liquid to prevent pump
from being damaged. If antifreeze is not used, pump shall be stopped when it is frozen. Pumps which are not
being used should be drained.
8. The following should be checked regularly for pump.
Pump working and operating pressure.
Possible leakage.
Possible motor overheat.
Cleaning / replacement of all strainers.
The switch off time of motor when overload.
Frequency of starts and stops.
All control operation.
If malfunction is found, check system according to “Fault Finding & Solution Chart”.
9. Pump shall be cleaned and kept appropriately when it is not used for a long time.
l0. Pump shall be prevented from being corrupted and damaged in storage.
15
Start-up, operation & maintenance.
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1. For BMV 1, 2, 3, 4
Put the circlip cover on the shaft, and then fit the sleeve, impeller, impeller sleeve, diffuser, support
diffuser. Continue the assemble order till the last impeller is fitted. Then fit the impeller cover, washer,
screw the nut. Pay attention to the position of the support diffuser, for less stages pump, the last one is
support diffuser. For more stages pump, support diffuser should be increased accordingly, the distance
of each support diffuser should be even, and put on the support sleeve and bearing with support
diffuser.
Put the inducer on the inlet & outlet chamber, and then fit the finished parts as above on the inducer.
Fit the O-ring on the inlet & outlet chamber, put on the cylinder and the top diffuser.
Put the pump head installed with O-ring, lining and corrugated springon the cylinder. Screw the four
nuts of the stay bolts on the base plate. Do not tighten one nut completely at one time, but tighten them
symmetrically in turn.
Fit the mechanical seal and tighten it, then install motor and coupling, screw the bolts in coupling (but
not tightly), press the coupling and shaft down to the direction of the base plate. Then lift it about 0.04"
in reverse direction, tighten the screws. Note that the space between the two couplings should be equal.
Tighten fixing bolts in mechanical seal, rotate the coupling to ensure that the shaft can rotate freely and
not be choked.
Reverse the process above can disassemble a pump.
2. For BMV 8, 12, 16, 20
Put the circlip cover on the shaft, and then fit the sleeve, impeller, impeller sleeve, diffuser, support
diffuser, bearing, support sleeve. Continue the assemble order till the last impeller is fitted, and then
install the impeller cover, washer, tighten the nuts.
Put the inlet & outlet chamber on the base plate, then put the O-ring, clamp plate inducer on inlet &
outlet chamber, then put the finished parts on the inducer, and put the top diffuser on the top, tighten
nuts of straps. At last, put on the cylinder.
Put the pump head installed with O-ring, lining and adjusting rubber on the cylinder, then tighten the
four stay bolts symmetrically in turn.
Fit the mechanical seal and tighten it, then install motor and coupling, screw the bolts in coupling (but
not tightly), press the coupling and shaft down to the direction of the base plate. Then lift it about 0.04"
in reverse direction, tighten the screws. Note that the space between the two couplings should be equal.
Tighten fixing bolts in mechanical seal, rotate the coupling to ensure that the shaft can rotate freely and
not be choked.
Reverse the process above can disassemble a pump.
16
Assemble & disassemble
barmesapumps.com

3. For BMV 32, 42, 65
Put the inlet & outlet chamber on the base plate, fit flanges on inlet & outlet chamber at two sides, and fit
the inducer.
Put the first impeller on the shaft, tighten the nuts and put the impeller on the neck ring base of inducer,
then put on the diffuser impeller, support diffuser, until the top diffuser, then fix all the diffuser with the
straps.
Shaft parts: fit the bottom sleeve, cover, washer on the shaft, tighten the bolts, fit bottom bearing on the
inlet & outlet chamber, fit washer. Then put the shaft parts on the inlet & outlet chamber, fit on O-ring,
lubricate the O-ring and then put on the cylinder.
Fit stay bolts on the base plate, then fit the O-ring, adjusting rubber, air vent gag on the pump head, and
put the pump head on the stay bolts, then put on the washer and tighten all the nuts.
Fit the mechanical seal on the pump head, then fit the seal cover, tighten the bolts, and the bolts in the
seal. Lift the shaft and insert the adjusting slice.
Fit the bracket and motor on the pump head.
Finally fit the coupling, tighten the bolts, and take out the adjusting slice. Rotate the coupling to ensure
that the shaft can rotate freely and not be choked.
Reverse the above process to disassemble a pump.
17
Assemble & disassemble
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Caution: Before removing the terminal box cover and before any removal/dismantling of the pump, make
sure that the power supply has been switched off.
18
Fault Finding & Solution Chart
FAULT CAUSE SOLUTION REMARKS
a) Power supply failure. a)Check power supply.
b) Fuses are blown. b) Replace fuses.
c) Motor is overloaded. c) Check system.
d) Main contacts of starter are
not connected well or the coil
is defective.
d) Replace motor starter.
e) Control circuit is defective. e) Check control circuit.
f) Motor is defective. f) Repair.
a) Fuses are blown. a) Replace fuses.
b) Contacts of overload device
are faulty. b) Check motor starter.
c) Cable connection is loose
or faulty.
c) Check cables and power
supply.
d) Motor winding is defective. d) Replace motor.
e) Pump mechanicably
blocked. e) Check and repair pump.
a)The setting of overboad is
too low. a) Reset overload setting.
b) Periodic power supply
faults. b) Check power supply.
c) Low voltage at peak times. c) Add regulator.
a) Contacts of starter are not
contacted welI or the coil is
faulty.
a) Change motor starter.
b) Control circuit are
defective b) Check control circuit.
a) Suction pipe is too small. a) Enlarge inlet pipeline.
b) There is not sufficient water
in pump water inlet.
b) Improve system and
increase coming water.
c) Liquid Ievel is Iow. c) Try to lift liquid level.
d) Pump inlet pressure is too
low compared with water
temperature, pipeline Ioss
and flow.
d) Improve system and try to
increase the inlet pressure.
e) Suction pipe is partly
blocked by impurities. e) Check and clear impurities.
In the case of d) and e),
users shall not
disassemble the pump
by themselves.
Motor does not run
when started.
Overload device of
motor starter trips out
immediately when
power supply is
switched on.
Overload device trips
out occasionally.
Motor starter has not
tripped out but the
pump does not run.
Pumped water does
not flow constantly.
Table 5
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19
Fault Finding & Solution Chart
FAULT CAUSE SOLUTION REMARKS
a) Suction pipe is blocked by
impurities.
a) Check and clean suction
pipe.
b) Foot valve or check valve is
closed.
b) Check and repair foot valve
or check valve.
c) Leakage in suction pipe. c) Check and repair suction
pipe.
d) There is air in suction pipe
or pump. d) Refill liquid, release air.
a) Leakage in suction pipe. a) Check suction pipe.
b) Foot valve or check valve is
defective.
b)Check and repair foot valve
or check valve.
c) Foot valve is blocked in
opened or partly opened
position.
c)Check and repair foot valve.
d) There is air in suction pipe. d) Check and repair suction.
a) Leakage in suction pipe. a) Check and repair suction
pipe.
b) Suction pipe is too small or
suction pipe is partly blocked
by impurities.
b) Enlarge or check suction
pipe.
c) There is air in suction pipe
or pump.
c) Refill liquid to the pump
and vent air.
d) The comparison of the
delivery head of device with
delivery head of pump is very
Iow.
d) Improve system or choose
another pump model.
e) Pump mechanically
blocked. e)Check and repair pump.
Abnormal vibration or
noise from pump
In the case of e), users
shall not disassemble the
pump by themselves.
Pump runs backwards
when switched off.
Pump runs but gives
no water.
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