Barmesa Pumps IA Series Instruction manual

Installation, Operation &
Maintenance Manual
End Suction Centrifugal Pumps
IMPORTANT! - Read all instructions in this manual before operating or servicing
a pump.
IA series
2-125 HP @
1750 y 3500 RPM
Last update: 07/22/2022
barmesa.com

1
General Safety Information
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.
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
junction connections must be in
accordance with the National Electric
Code and all applicable state and local
codes. R equirements may var y
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
D o n o t p u m p
hazardous materials (flammable,
caustic, etc.) or use these pumps in
water over 160 °F. Do not exceed
m a n u f a c t u re r s r e c o m m e n d e d
maximum performance, as this could
cause the motor to overheat.
WARNING
C a r e f u l l y r e a d
instruction manuals supplied with
motor or engine before operating or
servicing.
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
DECON TAMINAT E D P R I O R TO
S H I P M E N T , T O I N S U R E
E M P L O Y E E S W I L L N O T B E
EXPOSED TO HEALTH HAZARDS IN
HANDLING SAID MATERIAL. ALL
A P P L I C A B L E L A W S A N D
REG U L ATI O NS SHAL L A P P LY .
Keep clear of suction and
discharge openings. Do not
insert fingers in pump with
power connected; the 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
fo r p u m p s t o c o o l
DANGER
before handling or servicing the
p u m p o r a ny a cce s s o r y ite m s
associated with or near the pump. Do
not block or restrict the discharge
pipe/hose.
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 there is
DANGER
human 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 and tag.
Indicates a potentially
hazardous situation which, if not
avoided, MAY result in minor or
moderate injury.
CAUTION
Do not lift, carry or
hang pump by the electrical
c a b l e s . D a m ag e t o t h e
electrical cables can cause
DANGER
shock, burns or death. Never handle
connected power cords with wet
hands. Use appropriate lifting device.
Indicates an immi-
nenty hazardous situation which, if
not avoided, MAY result in death or
serious injury.
WARNING
Indicates an immi-
nently hazardous situation which, if
not avoided, WILL result in death or
serious injury.
DANGER
Failure to permanently
ground the pump, motor and
controls before connecting
to power can cause shock,
DANGER
burns or death.
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: _____________________
Serial: _____________________________
Phase: _______ HP: __________________
IMPORTANT! - Prior to installation,
record Model Number, Serial, Amps,
Voltage, Phase and HP from pump
name plate for the future reference.
Also record the Voltage and Current
Readings at Startup:
Do not breathe exhaust
fumes when working in the area of the
engine. (Exhaust gases are odorless
and deadly poison.)
WARNING
If engine driven, never
op erat e i n a n e ncl ose d
bu i ldi n g o r a re a wh ere
e x h a u s t g a s e s c a n
WARNING
accumulate, or near a building where
gases can seep inside; always take
provisions for adecuate ventilation.
Never add fuel to the
tank while the engine is
running. Stop engine and
allow to cool.
WARNING
Do not smoke while refueling the
engine. Do not refuel near open
flame.
barmesa.com

2
SUCTION: 1½" - 8" NPT or flange horizontal.
DISCHARGE: 1" - 6" NPT or flange vertical.
LIQUID TEMPERATURE: 160 °F (71 °C) max.
VOLUTE: Cast iron ASTM A-48 class 30.
INTERMEDIATE COUPLING: Cast iron ASTM A-48 class 30.
IMPELLER: Cast iron ASTM A-48 class 30 or stainless steel 304. Investment casting, dynamically
balanced.
SEAL: Mechanical, type 01. Ceramic stationary part, carbon ring seal and exclusion in the
rotating part. Buna-N elastomer and stainless steel spring.
SHAFT SLEEVE: Stainless steel.
O-RINGS: Buna-N.
MOTOR: High quality premium efficiency TEFC or ODP electric motors, 1 & 3 phases, 60 Hz,
NEMA, with rated output from 2 up to 125 HP, 1750 & 3500 RPM and frame sizes from
182 JM to 405 JM.
HARDWARE: Carbon steel.
PAINT: Air dry enamel, water based.
Specifications & Dimensions
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3
Recommendations, Warnings & Installation
4Receiving inspection
Upon receiving the pump, it should
be inspected for damage or
shortages. If damage has occurred,
file a claim immediately with the
company that delivered the pump. If
the manual is removed from the
packaging, do not lose or misplace.
4Storage
Any product that is stored for a
period longer than six (6) months
from the date of purchase should be
bench tested prior to installation. A
bench test consists of, checking the
impeller to assure it is free turning
and a run test to assure the motor
(and switch if provided) operate
properly.
4Service Stations
To find the nearest Barmesa Pumps
authorized service shop, please
directly contact your distributor or
the factory.
The anchors of the motor are to be
anchor, on a raised base,
approximately 4", this to prevent
accumulated water from entering the
motor.
**See friction table in pipes and fittings
to determine the dimensions of the
suction and discharge. (Page 8)
At any time exceeding six (6) months,
but no more than twenty four (24),
the equipment must be stored in a
controlled area, keeping it away from
contact with rain, dust, etc., and the
temperature is maintained between
43-104 °F. If there is a possibility of
high humidity (coastlines, etc.), the
entire unit must be sprayed with
antioxidant liquid.
4Installation
The pump should be as close as
possible to the liquid to be pumped,
with a minimum number of
couplings, adapters, etc., in order to
reduce friction on the suction side.
The suction and discharge piping
must be perfectly aligned in the
pump volute and supported
independently using support or
anchors, this to prevent excessive
load on the volute.
A successful operation depends on
the calculation of the friction loss in
the suction, considering acceptable
limits. The minimum suction pipe size
to use can be determined by
comparing the NPSH available at the
pump suction against the NPSH
required by the impeller, as shown in
the performance curves.
Usually, we recommend using a pipe
diameter of 1/2" to 1" greater as that
of the suction volute or body.
A strainer or sieve should be installed
in the suction to prevent the entry of
objects. The strainer must have a free
entry area at least three times the
pipe diameter. Usually a suction valve
is combined with a strainer Figure 1.
Use pipe or hose reinforced
sufficiently robust to prevent
collapsing by the difference in
atmospheric pressure. Check for leaks
at all joints.
4Suction
Figure 1 Proper installation.
Motor
Anchors Base Pippe
support
Eccentric
reducer
Vacuum
gauge
Straight pipping as short
as possible, but not less
than 6 times the
"D" diameter
Perfectly
sealed joints
As closeAs close
as possibleas possible
As close
as possible
Strainer
Appropriate size "D"
to avoid the excess
of friction
1 "D"
min.
4 "D"
min.
SuctionSuction
valvevalve
Suction
valve
4"
"D"
barmesa.com

4
Installation
NOTE: The values in this table refer to frictions and clean water pipes and hoses smooth
walls. As used pipe and / or hose rough walls increase the values about 50% to 100%.
Table 1 Friction in meters x 100 m of piping.
1" 1¼" 1½" 2" 2 ½" 3" 4" 5" 6" 8" 10"
30 4.54 8
37 6.86 1.77 10
45 9.62 2.48 12
57 16.2 4 1.53 15
68 20.6 5.22 2.42 18
76 25.1 6.34 2.94 20
95 38.7 9.6 4.48 1.2 0.54 25
113 54.6 13.6 6.26 1.82 0.75 30
151 95 23.5 10.79 3.1 1.28 40
170 119 29.4 13.45 3.85 1.6 45
189 146 36 16.4 4.67 1.94 0.66 50
208 43.2 19.7 5.51 2.33 0.79 55
227 51 23.2 6.59 2.72 0.92 60
246 59.6 27.1 7.7 3.17 1.07 65
265 68.8 31.3 8.86 3.63 1.22 70
284 78.7 35.8 10.15 4.14 1.39 75
303 89.2 40.5 11.4 4.66 1.57 80
322 100 45.6 12.6 5.27 1.77 85
360 125 56.5 15.8 6.49 2.18 0.57 95
378 138 62.2 17.4 7.11 2.39 0.62 100
416 75.25 21.05 8.55 2.88 0.75 110
454 88.3 24.7 10 3.37 0.88 120
530 119 33.2 13.5 4.51 1.17 0.38 140
568 137.5 38.1 15.45 5.16 1.33 0.43 150
605 156 43 17.4 5.81 1.49 0.48 160
643 48.55 19.65 6.54 1.67 0.54 170
681 54.1 21.9 7.28 1.86 0.6 180
757 66.3 26.7 8.9 2.27 0.73 0.3 200
833 80 32.2 10.07 2.72 0.87 0.35 220
908 95 38.1 12.6 3.21 1.03 0.41 240
984 111 44.5 14.7 3.74 1.2 0.48 260
1060 128 51.3 16.9 4.3 1.38 0.56 280
1135 146 58.5 19.2 4.89 1.58 0.63 300
1324 79.2 26.1 6.55 2.11 0.85 350
1514 103 33.9 8.47 2.72 1.09 0.27 400
1892 52.5 13 4.16 1.66 0.42 500
2082 63.2 15.7 4.94 2 0.5 550
2271 74.8 18.6 5.88 2.34 0.59 0.19 600
2649 101 25 7.93 3.13 0.79 0.25 700
2838 28.7 9.07 3.59 0.91 0.29 750
3028 32.4 10.22 4.04 1.02 0.32 800
3217 36.6 11.56 4.5 1.13 0.36 850
3406 40.8 12.9 5.05 1.27 0.41 900
3595 45.5 14.35 5.61 1.42 0.45 950
3785 50.2 15.8 6.17 1.56 0.5 1000
4163 19.15 7.41 1.87 0.6 1100
4542 22.5 8.76 2.2 0.7 1200
4920 26.45 10.2 2.56 0.81 1300
LITERS
PER
MINUTE
PIPING DIAMETER GALLONS
PER
MINUTE
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5
Installation
Table 1 Equivalent length in meters of straight pipe and valve connections for calculating friction.
1" 1½" 2" 2 ½" 3" 4" 5" 6"
STANDARD 90°
ELBOW 0.84 1.07 1.22 1.68 1.98 2.44 3.35 4.12 4.88
MEDIUM RADIUS
ELBOW 90° 0.69 0.92 1.07 1.37 1.68 2.14 2.75 3.51 4.27
LONG RADIUS
ELBOW 90° 0.54 0.69 0.84 1.07 1.37 1.6 2.14 2.75 3.36
STANDARD 45°
ELBOW 0.38 0.54 0.61 0.77 0.92 1.15 1.53 1.83 2.29
STANDARD TEE 1.68 2.29 2.75 3.36 4.28 5.19 6.71 8.23 10.1
ANGLE GLOBE VALVE
(OPEN) 3.97 5.49 6.71 8.23 10.7 12.2 16.8 21.3 25.9
GLOBE VALVE (OPEN) 7.93 10.7 13 16.8 21.3 24.4 35.1 42.7 48.8
GATE VALVE (OPEN) 0.19 0.25 0.29 0.38 0.43 0.54 0.69 0.84 1.07
INCREASER 1.21 1.52 1.82 2.74 3.35 4.26 6.09 7.92 10.1
REDUCER 0.3 0.3 0.3 0.61 0.61 0.9 1.21 1.21 2.13
SUCTION VALVE 0.91 1.21 1.52 2.13 2.74 3.35 4.87 6.4 7.92
DESCRIPTION DIAMETER PART 1¼"
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6
Installation
Figure 2 Wrong installation.
Without
strainer
Vortex
"D"
Too much
height
Less than
4 "D"
Long piping
Concentric
reducer
Air
pocket Air leaks
A valve in the suction pipe
is not recommended
Piping elbow immediately
installed after the suction
Suction height - suction pipe should
have a slope of 0.39" per 3.3 ft of
suction. Never exceed 16.4 ft suction,
considering friction. (Figure 3)
Positive/Drowned Suction - A gate
valve is installed in the suction pipe
to service the pump (Figure 4). Volute
or body have plugs, and these must
be removed to allow trapped air to
escape.
Use pipe or hose reinforced
sufficiently robust to prevent
destruction due to high pressure.
4Discharge pipe
Due to the cost of energy or BHP
necessary to overcome the friction
generated by using a smaller
diameter pipe, a larger diameter
discharge pipe is commonly used
than the required by the volute or
body.
Figure 3 Inclination.
Correct Incorrect
Air pocket
0.39" of inclination
per 3.28 ft
Figure 4 Positive suction.
Check valve
(completely open)
"D"
6 "D" min.
Pressurized water
Correct
Figure 5 Positive suction.
A retention valve in the suction pipe
is not recommended. If required,
better install the valve in the
discharge pipe.
Valve partially
closed
Incorrect
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7
Installation & Operation
In order to determine the optimal
size of the piping, compare the total
cost of the equipment's operation
(cost of the pump, control
equipment, piping and energy
consumption). By increasing the
discharge diameter reasonably, it
reduces the required BHP due to the
low friction. Perform different tests
using several piping diameters until
you find the more convenient.
The pipe, valves, etc. should be
perfectly align with the volutes
suction and discharge centerlines,
this to avoid any excessive loads on
the pumps volute. If needed, install
new expansive joints to protect the
pump from excessive thermal or
pressure forces.
Install the foot valve at the suction
pipe Figure 1 and fill with liquid the
superior part of the pump's body.
Sometimes air is trapped inside the
body, to remove it you should uncap
the male plug until the liquids spills
out. Re-install the male plug using a
sealant.
IMPORTANT! - Do not
operate pump without
priming first. Operating dry
will damage seal.
4Pre-Operation
1.Check Voltage and Phase -
Compare the voltage and phase
information stamped on the
pump name plate.
2.Check Pump Rotation - Improper
motor rotation can result in poor
pump performance and can
damage the motor and/or pump.
Check rotation on three phase
units by momentarily applying
power and observe the "kickback".
4.Priming - Every centrifugal pump
must be primed (suction pipe and
pump's body should have liquid),
before operating.
Kickback should always be in a
counter-clockwise direction as
viewed from motor end or opposite
to impeller rotation. Impeller rotation
is counter-clockwise as viewed from
bottom of pump.
3.Name Plate - Record the
information from the pump name
plate to drawing in front of manual
for future reference.
Figure 6 Discharge piping.
Expansive
joint
Service valve
Safety shutoff
valve
Junta de
expansión
Service valve Retarded action
check valve
Swing check valve
could cause a
"water hammer"
Correct Incorrect
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8
4Starting
When starting for the first time your
equipment check that the discharge
valve is 90% closed. Gradually open
the valve until the motor runs at full
load (amperage plate). Never allow
the amperage consumed by the
pump exceeds the maximum
permitted by the engine.
Mechanical Seal - To inspect or
replace the shaft seal, remove the
body and impeller. If any part shows
wear or damage, replace both parts
(stationary seat and rotary part). The
rotating seal parts may be stuck
together with the shaft, this happens
when the seal has been assembled
for a long time.
If the mechanical seal does not leak
and there is need to open the pump
for inspection or cleaning, DO NOT
remove the seal, remove the spring
only if the impeller needs to be
removed. Once a seal has been in
operation is very difficult to remove
and reassembly without creating a
seal leak.
IMPORTANT! - Always
unplug the pump before
applying maintenance,
service or repair to avoid
electric shock.
Handle seal parts with
extreme care. DO NOT
damage lapped surfaces.
Operation & Maintenance
4Mechanical seal
Mechanical seals installed in this
pumps are lubricated by water, there
for the pump should not be operated
dry. You will find the appropriate seal
for each use and liquid to be
pumped, check with your Barmesa
Pumps distributor for more
information.
4Stuffing box*
If the pump has graphite packing
(stuffing box) consider the following:
ŸWhen the pump is placed into
operation, the liquid will drip from
the stuffing box; if this does not
happen, loosen the nuts on the
stuffing box until dripping occurs.
ŸOnce the pump has operated for a
reasonable period and the
dripping has not decreased to "a
few drops per minute", it is
necessary to tighten the nuts
stuffing box. If tightening the nuts
the required drip is not achieved,
the graphite packing rings must
be replaced.
ŸAfter a few minutes of operation,
gradually tighten the nuts until
the drip decreases but does not
stop.
4Frame*
All pumps come with factory
lubricated bearings. It is very
important to have oil in the oil tank.
(Use oil DTE26). Change the oil every
1,000 hours of operation, considering
a daily operation of 8 hours.
It is important not to overfill the oil
tank because it would cause an
increase in pressure by heating,
affecting the bearings and seals. In
normal operation, the frame
temperature increases 122 °F above
ambient temperature.
*For Barmesa pumps with universal
transmission.
4Flexible coupling*
All pumps operated through flexible
coupling or by pulleys and belts must
be perfectly aligned to ensure
smooth operation. In no case
problems occur with flexible
couplings if the pump-motor
alignment is correct. All pumps are
manufactured following this
condition.
4Maintenance
Body and Impeller - All pump parts
are removable by removing nuts and
bolts. For body maintenance,
disconnect the suction and
discharge, and remove the body of
the intermediate coupling. For
maintenance of the impeller is not
necessary to remove the suction or
discharge, simply remove the body
nuts; this would uncover the impeller.
Examine and replace if it shows wear
or damage.
When the impeller requires
replacement, remove the screw of
the shaft, and using a puller, remove
the impeller being careful not to
abuse the keyway of the shaft.
4Disassembly
Mechanical Seal - Perform the steps
above. Remove the rotating part. It
may be necessary to remove the
intermediate link to remove the
stationary seat. To do this, remove the
nuts and washers that attach the
coupling to the motor. When
removing the coupling, the steady
part will move towards the front seat
of the shaft and the sleeve. If the seat
does not yield itself, push from the
rear of the coupling.
4Reassembly
Mechanical Seal - Identify all parts of
Figures 7 and 8. The ring (6) and seat
(1) are perfectly polished, so care
must be taken not to scratch or
smudge. The cleaning during the
assembly process is very important.
IMPORTANT! - All parts
must be clean before
reassembly.
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9
1 - Ceramic seat
2 - Seal seat Buna-N
3 - Inox. retainer
4 - Inox. jacket
5 - Inox. spring
6 - Carbon ring
7 - Elastomer Buna-N
8 - Inox. washer
2
1
3
6
4
5
7
8
Figure 7 Mechanical Seal - Sectional View.
Intermediate
coupling
Shaft
sleeve
Shaft
Seal
stationary
Seal
rotating
member
Spring
Impeller
Impeller
lockwasher
Lockwasher Hex.
screw
Figure 8 Mechanical Seal - Assembly.
Service
Step 1: Install the intermediate
coupling if it was previously
removed. Make sure the shaft and
cavities, where will it seats, are clean.
The shaft sleeve should not be sharp,
but a radius of about 1/32". It is
recommended that lightly polish the
area of the shaft. If the shaft and it
radius are perfectly polished, the seal
can be relatively easily installed.
Step 2: Install the seat assembly (1
and 2) on the inside of the
intermediate coupling, slightly
moistening with water on the rubber
parts (do not use grease or oil). This
assembly should be done only
manually, meaning without the use
of an instrument.
Step 3: Install the rotating portion of
the seal without the spring. Moisten
the arrow and the inside of the seal
with some water (do not use grease
or oil). With clean, dry hands, insert
the rotating portion to the shaft,
sliding it abuts the stationary seat.
Once the seal is in place, insert the
spring (5).
Step 4: Place the impeller and
washers; tighten the hex screw.
barmesa.com

10
4 HOLES
H
ELECTRIC MOTOR
BRAND "US"
ENCL. ODP
5.31"
B
A
5.50"5.75"
DISCHARGE
1-1/2" NPT
THREADED
C
3.38" G F
E D
SUCTION
2" NPT
THREADED
MODEL IA1-1/2 & IA1-1/2H
HIGH PRESSURE CENTRIFUGAL PUMP
GENERAL DIMENSIONS
MODEL
IA1-1/2-7.5-2
IA1-1/2-10-2
IA1-1/2-15-2
CODE HP
7.5
10
15
RPM
3515
3505
3530
PHASE
3
3
3
FRAME
213JM
215JM
254JM
A
5.25
6.25
B
7.60
10.0
C
8.50
10.0
D
5.50
7.00
8.25
E
4.25
4.50
F
19.06
G
4.54
IA1-1/2-5-2 5 3490 3184JM 4.50 7.50 5.50 3.63 11.81
ALL DIMENSIONS ARE IN INCHES.
IA1-1/2-20-2 20 3525 3 256JM 10.0 19.65
IA1-1/2H-15-2
IA1-1/2H-20-2
IA1-1/2H-25-2
15
20
25
3530
3525
3525
3
3
3
254JM
256JM
284JM
IA1-1/2H-3-4 3 1740 3182JM
IA1-1/2H-30-2 30 3525 3 286JM
H
0.53
6.88
4.50
4.50 7.50 3.63 11.81 4.25 0.416.88
14.75
13.25 4.25 0.41
4.54
6.25 10.0 10.0 8.25 4.50 19.06 4.54
10.0 19.65 0.53
7.00 11.75 11.0 9.50 4.75 20.50 5.18
11.0
MODEL IA1 GENERAL DIMENSIONS
HIGH PRESSURE CENTRIFUGAL PUMP
4 HOLES
H
ELECTRIC MOTOR
BRAND "US"
ENCL. TEFC
4.06"
B
A
4.50"5.44"
DISCHARGE
1" NPT
THREADED
C
2.50" 4.34" F
E D
SUCTION
1½" NPT
THREADED
MODEL HP RPM PHASE FRAME A B C D E F
ALL DIMENSIONS ARE IN INCHES.
H
IA1-7.5-2 7.5 3535
IA1-5-2 5 3525 3184JM 4.50 7.50 5.50 3.63 13.567.50 0.41
IA1-3-2 3 3540 3182JM 4.50
PART No.
62212002
62212003
62212004
Drawings
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11
Drawings
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12
Drawings
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13
Drawings
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14
SUCTION
4" NPT
THREADED
DISCHARGE
3" NPT
THREADED
ELECTRIC MOTOR
BRAND "US"
ENCL. ODP
4 HOLES
HIGH PRESSURE CENTRIFUGAL PUMP
MODEL IA3 & IA3H
GENERAL DIMENSIONS
MODEL HP RPM PHASE FRAME A B C D E F G H
IA3-3-4 3 1740 3 182JM 4.5"
IA3-5-4 5 1730 3 184JM
IA3-7.5-4 7.5 1750 3 213JM 5.25" 7.6" 8.5" 4.25" 13.5" 4.78"
IA3-15-2 15 3530 3 254JM 8.25" 19.31"
IA3-20-2 20 3525 3 256JM 10" 19.94"
IA3-25-2 25 3525 3 284JM 9.5"
IA3-30-2 30 3525 3 286JM 11"
IA3-40-2 40 3530 3 324JM 10.5"
IA3-50-2 50 3530 3 326JM 12"
IA3H-30-2 30 3525 3 286JM 7" 11.75" 11" 11" 4.75" 20.5" 0.53"
IA3H-40-2 40 3530 3 324JM 10.5"
IA3H-50-2 50 3530 3 326JM 12"
IA3H-60-2 60 3565 3 364JM 11.25" 23"
IA3H-75-2 75 3565 3 365JM 12.25" 24"
0.69"
5.46"
8" 14.75" 12.5" 5.25" 22.25"
0.69"
9" 16.31" 14" 5.88"
4.5" 6.88" 7.5" 3.63" 11.81" 4.53" 0.41"
5.5"
6.25" 10" 10"
4.75"
5.53"
0.53"
7" 11.75" 11" 20.5"
5.46"
8" 14.75" 12.5" 5.25" 22.25"
Drawings
MODEL HP RPM PHASE FRAME A B C D E F G
IA2½H-40-2 40 3600 3 324JM 24" 10.5"
IA2½H-50-2 50 3600 3 326JM 25.52 12"
IA2½H-60-2 60 3600 3 364JM 28" 11.25"
IA2½H-75-2 75 3600 3 365JM 29" 12.25"
IA2½H-100-2 100 3600 3 405JM 32" 13.75" 5.75" 16" 10" 17.25" 0.81"
5.75"
12.5"
0.66"16.5"14" 9"
5" 8" 12" 0.66"
HIGH PRESSURE CENTRIFUGAL PUMP
MODEL IA2½H GENERAL DIMENSIONS
DISCHARGE
2½" NPT
THREADED
SUCTION
4" NPT
THREADED G
4 HOLES
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15
Drawings
HIGH PRESSURE CENTRIFUGAL PUMP
MODEL IA4 GENERAL DIMENSIONS
SUCTION
6" NPT
DISCHARGE
4" NPT
4 HOLES
MODEL HP RPM PHASE FRAME A B C D E F G
IA4-40-2 40 3530 3 324TSC 24" 10.5"
IA4-50-2 50 3530 3 326TSC 25.5" 12"
IA4-60-2 60 3565 3 364TSC 28" 11.25"
IA4-75-2 75 3555 3 365TSC 29" 12.25"
IA4-100-2 100 3560 3 405TSC 30.5" 13.75" 6.38" 16" 10"
IA4-125-2 125 3570 3 444TSC 37.75" 14.5" 8.75" 18" 11" 18.75" 0.81"
5" 12.5" 8" 12" 0.66"
5.75" 14" 9" 16.5" 0.66"
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16
Drawings
MODEL HP RPM PHASE FRAME A B C D E F
IA4BJH-20-4 20 1745 3 256JM 20.25" 10" 4.25" 10" 6.25" 9.9"
IA4BJH-25-4 25 1760 3 284JM 22.62" 9.5"
IA4BJH-30-4 30 1760 3 286JM 24.56" 11"
IA4BJH-40-4 40 1765 3 324JM 25.31" 10.5"
IA4BJH-50-4 50 1765 3 326JM 25.31" 12"
IA4BJH-60-4 60 1765 3 364JM 27" 11.25" 5.88" 14" 9" 16.44"
4.75" 11" 7" 12.94"
5.25" 12.5" 8" 15.44"
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17
Drawings
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18
MODELS:
* IA1
* IA1½
* IA1½H
* IA2
* IA2H
* IA2½
* IA3
* IA3H
Parts List
barmesa.com
Item Part No. Description Qty.
40020008 3 HP, 3510 RPM, 3 PH, frame 182T JM
40020011 5 HP, 3490 RPM, 3 PH, frame 184T JM
40020014 7.5 HP, 3515 RPM, 3 PH, frame 213T JM
03010028 Intermediate Coupling, for 2 to 5 HP
03010018 Intermediate Coupling, for 7.5 HP
3 03090038 Volute Case 1
03140031 Impeller IA1-3-2, Dia. 5.75"
03140031B Impeller IA1-5-2, Dia. 6.81"
03140031C Impeller IA1-2-4 & IA1-7.5-2, Dia. 7½"
5 30400808 Shaft Sleeve 1
6 92010029J O-Ring Shaft Sleeve 1
7 92010014 Slinger 1
8 31030131 Mechanical Seal 1
9 92010033 O-Ring 1
10 91010345C Impeller's Screw 1
11 91010061 Lock Washer 3/8" SS 1
12 30400418 Impeller Washer 1
13 30400631 Shaft Key 1
14 91010303 Stud 3/8"-16x 1½" 8
15 91010413 Hex Nut 3/8" 8
16 91010012 Lock Washer 3/8" Steel 8
91010243 Cap Screw 3/8"-16 x 1¼"
91010263 Cap Screw 1/2"-13 x 1½"
91010012 Lock Washer 3/8" Steel
91010014 Lock Washer 1/2" Steel
19 93010143 Pipe Plug 1/4" NPT 5
17 4
418
1
-1
4
12
For IA1 ~ IA2½

19
4IA3 4IA3H
ITEM QTY. DESCRIPTION # PART
ELECTRIC MOTOR, 200-230/460, ODP
3 HP, 1740 RPM, 3 PH, FRAME 182T JM
5 HP, 1730 RPM, 3 PH, FRAME 184T JM
7.5 HP, 1750 RPM, 3 PH, FRAME 213T JM
15 HP, 3530 RPM, 3 PH, FRAME 254T JM
20 HP, 3525 RPM, 3 PH, FRAME 256T JM
25 HP, 3525 RPM, 3 PH, FRAME 284T JM
30 HP, 3525 RPM, 3 PH, FRAME 286T JM
40 HP, 3530 RPM, 3 PH, FRAME 324T JM
50 HP, 3530 RPM, 3 PH, FRAME 326T JM
INTERMEDIATE COUPLING, FOR 3 TO 5 HP, 1750 RPM 03010028
INTERMEDIATE COUPLING, FOR 7.5 HP, 3500 RPM 03010018
INTERMEDIATE COUPLING, FOR 15 & 20 HP, 3500 RPM 03010051
INTERMEDIATE COUPLING, FOR 25 TO 50 HP, 3525 RPM 03010020
3 1 VOLUTE CASE 03090042
IMPELLER IA3 FOR 3 HP, Ø7.50" (SHAFT Ø7/8") 03140035I
IMPELLER IA3 FOR 5 HP, Ø8.40" (SHAFT Ø7/8") 03140035J
IMPELLER IA3 FOR 7.5 HP, Ø9.00" (SHAFT Ø7/8") 03140035H
IMPELLER IA3 FOR 15 & 20 HP, Ø6.94" (SHAFT Ø1¼") 03140035B
IMPELLER IA3 FOR 25 HP, Ø7.50" (SHAFT Ø1¼") 03140035C
IMPELLER IA3 FOR 30 HP, Ø8.00" (SHAFT Ø1¼") 03140035D
IMPELLER IA3 FOR 40 HP, Ø8.75" (SHAFT Ø1¼") 03140035E
IMPELLER IA3 FOR 50 HP, Ø9.00" (SHAFT Ø1¼") 03140035F
SHAFT SLEEVE, FOR 3 TO 7.5 HP 30400808
SHAFT SLEEVE, FOR 15 TO 50 HP 30400812
SLINGER, FOR 3 TO 7.5 HP, Ø1¼" 92010014
SLINGER, FOR 15 TO 50 HP, Ø1¾" 92010016
MECH. SEAL, FOR 3 TO 7.5 HP 31030131
MECH. SEAL, FOR 15 TO 50 HP 31030133
8 1 O-RING 92010033
IMPELLER'S SCREW, FOR 3 TO 7.5 HP 91010345C
IMPELLER'S SCREW, FOR 15 TO 50 HP 91010351
LOCK WASHER, 3/8" SS, FOR 3 TO 7.5 HP 91010061
LOCK WASHER, 1/2" SS, FOR 15 TO 50 HP 91010062
IMPELLER WASHER, FOR 3 TO 7.5 HP 30400418
IMPELLER WASHER, FOR 15 TO 50 HP 30400416
SHAFT KEY, FOR 3 HP TO 7.5 HP 30400631
SHAFT KEY, FOR 15 TO 50 HP 30400633
13 8 STUD 3/8-16X 1.50" 91010303
14 8 HEX NUT 3/8" 91010413
15 8 LOCK WASHER 3/8" 91010012
CAP SCREW, 3/8-16 X 1.25" FOR 3 & 5 HP 91010243
CAP SCREW, 1/2-13 X 1.50" FOR 7.5 TO 20 HP 91010263
CAP SCREW, 5/8-11 X 1.50" FOR 25 TO 50 HP 91010282
LOCK WASHER, 3/8" STEEL, FOR 3 & 5 HP 91010012
LOCK WASHER, 1/2" STEEL, FOR 7.5 TO 20 HP 91010014
LOCK WASHER, 5/8" STEEL, FOR 25 & 50 HP 91010015
18 1 PIPE PLUG 1/2" NPT 93010142
19 3 PIPE PLUG 1/4" NPT 93010143
17 4
9 1
10 1
11 1
12 1
16 4
2 1
4 1
5 1
6 1
7 1
1 1
ITEM QTY. DESCRIPTION # PART
ELECTRIC MOTOR, 200-230/460, ODP
30 HP, 3525 RPM, 3 PH, FRAME 286T JM
40 HP, 3530 RPM, 3 PH, FRAME 324T JM
50 HP, 3530 RPM, 3 PH, FRAME 326T JM
60 HP, 3565 RPM, 3 PH, FRAME 364T JM
75 HP, 3565 RPM, 3 PH, FRAME 365T JM
2 1 INTERMEDIATE COUPLING, FOR 30 TO 75 HP, 3500 RPM 03010020
3 1 VOLUTE CASE 03090042
IMPELLER IA3H FOR 30 HP, Ø7.50" (SHAFT Ø1¼") 03140066B
IMPELLER IA3H FOR 40 HP, Ø7.94" (SHAFT Ø1¼") 03140066C
IMPELLER IA3H FOR 50 HP, Ø8.50" (SHAFT Ø1¼") 03140066D
IMPELLER IA3H FOR 60 TO 75 HP, Ø9.0" (SHAFT Ø1¼") 03140066E
5 1 SHAFT SLEEVE, FOR 30 TO 75 HP 30400812
6 1 SLINGER, FOR 30 TO 75 HP, Ø1¾" 92010016
7 1 MECH. SEAL, FOR 30 TO 75 HP 31030133
8 1 O-RING 92010033
9 1 IMPELLER'S SCREW 91010351
10 1 LOCK WASHER, 1/2" SS 91010062
11 1 IMPELLER WASHER 30400416
12 1 SHAFT KEY, FOR 30 TO 75 HP 30400633
13 8 STUD 3/8-16X 1.50" 91010303
14 8 HEX NUT 3/8" 91010413
15 8 LOCK WASHER 3/8" 91010012
16 4 CAP SCREW, 5/8-11 X 1.50" 91010282
17 4 LOCK WASHER, 5/8" STEEL 91010015
18 1 PIPE PLUG 1/2" NPT 93010142
19 3 PIPE PLUG 1/4" NPT 93010143
1 1
4 1
Parts List
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