Walrus TPAK Series User manual

TPAK Series
COOLANT PUMP
Instruction Manual
ISO 9001 Certied
WALRUS PUMP CO., LTD.

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EC Declaration of Conformity
Manufacturer:
Walrus Pump Co., Ltd.
Address:
No.83-14, Dapiantou, Sanzhi Dist., New Taipei City 252, Taiwan
Declare that the machinery described:
Name : Water Pump
Model : TPAK Series
Conform to the following directive:
2006/42/EC—Machinery directive
2014/35/EU—Low voltage directive
2014/30/EU—EMC (Electromagnetic compatibility) directive
Refer to the following standards:
EN ISO 12100:2010 EN ISO 13857:2008
EN 809:1998+A1:2009 EN 60204-1:2006
EN 60335-1:2012 EN 60335-2-41:2003
EN 61000-6-2:2005 EN 61000-6-3:2007
R&D department manager: Kao Tien-chuan
Manager:

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Please read this instruction
manual carefully before installing
your new system as failures
caused by incorrect installation
and operation are not cover by
the warranty.
1. Application
The TPAK Series coolant pump is design
for the circulation and spraying of cooling
lubricants, especially for machine tools.
This series may use on all machine tools
performing Turning, Milling, Drilling, Cutting,
Slitting, Grinding etc. operation.
It is suitable to carry liquids such as water,
coolant, light oil and other clean, non
aggressive matters.
2. Model Code
3. Operating Limits
1. Ambient temperature : Max. +40°C
2. Liquid temperature range: 0°C to 90°C
3. Operating pressure : Max. 10 kg/cm²
4. Head: 50Hz : Up to 12M
60Hz : Up to 17M
4. Installation
The pump has hot surface on the
motor. It must be installed so that
persons cannot accidentally come
into contact the hot surface.
4.1.Pump location
Note : The pumps can only be mounted in
vertical position, see g.1.
4.2.Submerged depth : L (mm)
To avoid dry running and damage the pump
during operation, the minimum pump
submerged depth as follows.
Model TPAK 2 TPAK 4 TPAK 8 TPAK 15
L (mm) 50 60 90 120
4.3.Maximum liquid level
TPAK 2 - 18
Installation length
18 = 180 mm
25 = 250 mm
Output power
2 = ¼ HP
4 = ½ HP
8 = 1 HP
15 = 1.5 HP
Model name
Fig.1
Min. L
Min. 20 mm

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5. Electrical Connection
5.1 The electrical connection should
be carried out in accordance
with local regulations. Never
make any connections unless
the electricity supply has been
switched o.
5.2. The electrical hazard warning
mark is placed outside the
connection box. Be careful.
5.3. Electrical data (voltage and frequency)
are shown on the pump nameplate.
Verify if these data match your
electricity supply. A Residual current
device (RCD, 30mA) should be
installed and the grounding be properly
connected for your safety.
5.4. Motors must be connected to a
motor-protective circuit breaker
which can be manually reset. Set
the motor-protective circuit breaker
according to the rated current of
the motor. See nameplate.
5.5. Make electrical connection in accordance
with connecting diagram located inside
the connection box. The motor current
must be within the rated amps range
indicated on nameplate. Three phase
motor requires a magnetic starter for
safety.
5.6. For three phase motors, look down from
the fan cover the correct direction of
rotation is rotate clockwise. if wrong
rotation, you can reverse the direction
of rotation by interchanging any two of
the incoming supply wires.
5.7. Motors must equipped overload
protector and open-phase protector to
avoid motor damage.
6. Start-up
Before starting the pump, make sure the
following:
6.1. For three phase motors, verify if the
rotating direction is correct. It should be
clockwise, look down from the motor
fan cover.
6.2. All piping joints are completely tight.
Leakage in piping may cause the pump
hydraulic loss.
6.3. The pump is lled with liquid.
6.4. The suction filter is not blocked by any
foreign objects.
7. Operation and Maintenance
It is dangerous to operate the
pump against a closed discharge
outlet because it will cause
extremely high liquid flow
temperature and damage the
pump in a few minutes.
7.1. Periodic checks
The following checks should be carried
out periodically to ensure the normal
operation.
7.1.1. Check the quantity of liquid and
operating pressure.
7.1.2. Check there are no leaks on piping
joints.
7.1.3. Check the tripping of the motor
starter.
7.1.4. Check that all controls are
functioned normally.
7.2. The pump must not be used to transfer
explosive liquids. In systems with hot
liquids (over 60°C), extra caution should
be exercised to prevent from personal
injury.
7.3. The pump should not be used to transfer
toxic or contaminated liquids. Please
carefully follow all instructions in the
manual as Walrus may refuse to accept
the contaminated pump for servicing.
7.4. If the supply cord is damaged, it must be
replaced by a special cord or assembly
available from the manufacturer or its
service agent.

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8. Sound pressure level
Motor dB(A)
TPAK 2 <70
TPAK 4 <70
TPAK 8 <70
TPAK 15 <70
9. Wiring diagram
CONNECTING
3Ø
L1
LOW VOLTAGE
U1
W2
L2
V1
U2
L3
W1
V2
HIGH VOLTAGE
L2 L3L1
W2 U2 V2
U1 V1 W1
10. Fault nding
(Make sure electricity supply has been switched o before attempting to diagnose any fault)
Fault Cause
10.1 Motor does not start
a. No electricity supply
b. Fuses are blown.
c. Motor overheating relay tripped.
d. Defective magnetic contactors.
e. Control circuit malfunction.
10.2. Motor cut out during operation.
a. Fuses blown or breakers tripped.
b. Overheating relay tripped.
c. Control circuit malfunction.
d. Pump locked up by foreign objects.
10.3. Pumped capacity is not constant.
a. Pump impeller blocked by impurities.
b. Insucient liquid level in the tank.
(See Sec. 4.2)
10.4. Pump runs but gives no liquid.
a. Impellers damage.
b. Liquid level is too low (See Sec. 4.2)
c. Incorrect rotating direction.

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11. Dimensions
D
A
C
F G
B
J
J
H
I
L
K
E
Model DIMENSIONS: ( mm ) N.W weight
(kg)
A B C D E F G H I J K
TPAK 2 -15 325 150 175 24 Rp ½” 80 112.5 Ø120 Ø120 160 4xØ8 PCD158 9.5
TPAK 2 -18 355 180 175 24 Rp ½” 80 112.5 Ø120 Ø120 160 4xØ8 PCD158 10.0
TPAK 2 -25 425 250 175 24 Rp ½” 80 112.5 Ø120 Ø120 160 4xØ8 PCD158 10.6
TPAK 4 -15 385 150 235 28 Rp ¾” 85 111 Ø135 Ø135 170 4xØ9 PCD170 11.2
TPAK 4 -18 415 180 235 28 Rp ¾” 85 111 Ø135 Ø135 170 4xØ9 PCD170 11.9
TPAK 4 -25 485 250 235 28 Rp ¾” 85 111 Ø135 Ø135 170 4xØ9 PCD170 12.7
TPAK 8 -18 456 180 276 29 Rp 1” 95 111 Ø150 Ø150 190 4xØ9 PCD185 15.5
TPAK 8 -25 526 250 276 29 Rp 1” 95 111 Ø150 Ø150 190 4xØ9 PCD185 17.1
TPAK 15-25 573 248 325 42 Rp 1½” 122 124 Ø180 Ø180 200 4xØ9 PCD210 24.0

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12. SPECIFICATION
Model PH
(Ø)
Cycle
(Hz)
Input
Power
(W)
Volts
(V)
Full load
current
(A)
TPAK 2 3
50 270 200-255 / 380-440 1.0-1.3 / 0.6-0.8
60 350 200-255 / 380-480 1.2 / 0.7
TPAK 4 3
50 440 200-255 / 380-440 1.5-1.9 / 0.9-1.2
60 620 200-255 / 380-480 2.0 / 1.1
TPAK 8 3
50 930 200-255 / 380-440 3.1-4.4 / 1.9-2.6
60 1320 200-255 / 380-480 4.0 / 2.4
TPAK 15 3
50 1300 220 / 380 4.8 / 2.8
60 2000 220 / 380 5.4 / 3.1

Limited Warranty
Products manufactured by Walrus Pumps Co (Walrus) are warranted to the rst user only to be
free of defects in material and workmanship for a period of 12 months from date of installation,
but no more than 24 months from date of shipment. Walrus' liability under this warranty shall
be limited to repairing or replacing at our election, without charge, FOB Walrus' distribution
center or authorized service agent. Walrus will not be liable for any cost of removal, installation,
transportation or any other charges that may arise in connection with warranty claim.
The warranty period commences on the date of original purchase of the equipment. Proof of
purchase and installation date, failure date, and supporting installation data must be provided
when claiming repairs under warranty.
This warranty is subject to due compliance by the original purchaser with all directions and
conditions set out in the installation and operating instructions. Failure to comply with these
instructions, damage or breakdown caused by fair wear and tear, negligence, misuse, incorrect
installation, inappropriate chemicals or additives in the water, inadequate protection against
freezing, rain or other adverse weather conditions, corrosive or abrasive water, lightning or
high voltage spikes or through unauthorized persons attempting repairs are not covered
under warranty.
Walrus will not be liable for any incidental or consequential damages, losses, or expenses,
arising from installation, use, or any other causes. There are no express or implied warranties,
including merchantability or fitness for a particular purpose, which extend beyond those
warranties described or referred to above.
Certain states do not permit the exclusion or limitation of incidental or consequential
damages or the placing of limitations on the duration of an implied warranty, therefore, the
limitations or exclusions herein may not apply. This warranty sets forth specic legal rights and
obligations, however, additional rights may exist, which may vary from state to state.
Supersedes all previous publications
CC70D0004DA00EW0R04
WALRUS PUMP CO., LTD.
Web: w ww.walru spump.com