TPH Series

MULTISTAGE CENTRIFUGAL PUMP

Instruction Manual

234867

ISO 9001 Certified

Walrus America Inc
 EC Declaration of Conformity

Manufacturer:
Walrus Pump Co., Ltd.
Address:
No. 83 -14, Dapiantou, Sanjhih Township, Taipei County 252, Taiwan
Declare that the machinery described:
Name : Water Pump
Model : TPH Series

Conform to the following directive:

2006/42/EC—Machinery directive
2006/95/EC—Low voltage directive
2004/108/EC—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 60335-1:2002 EN 60335-2-41:2003
EN 61000-6-2:2005 EN 61000-6-3:2007

R&D department manager: Kao Tien-chuan

Manager:
TPH Instruction Manual 2.1.7 Outdoor: When the pump is installed outside,
Please study all instructions carefully before installing please provide a suitable cover to protect it
your new system, as failures caused by incorrect from weather and frost. Please do not allow any
installation and operation are not covered by the foreign objects fall into the motor fan cover.
warranty. 2.2 Electrical connection
2.2.1 This mark located outside the connection
box is a warning for an electrical
1. General Data: hazard.
1.1 Applications 2.2.2 The electrical connection should be carried out in
The TPH Series are modernly designed with quiet and accordance with local regulations. The
high efficient operation pumps, suitable for operating voltage and frequency are marked on
dependable water transfer, circulating or booster the nameplate. Please make sure that these
service. It works for clean or other liquids without data match with your job requirement. For your
abrasive matters. safety, be sure the circuit breaker is in your
-Industrial circulation system system and grounding is properly connected to
-Washing/cleaning system prevent from electric shock.
-Pressure boosting system 2.2.3 Three phase motors must be connected to a
-Water/liquid transfer motor starter for protection of overload and
-Agricultural irrigation single phase running. Please be sure if the
-Air-conditioning direction of rotation is correct. For three phase
motor you can reverse the direction of rotation
by interchanging any two of the incoming
CAUTION supply wires. Before your first operation, please
This pump has been tested to water only.
place a allen wrench against the shaft at motor
end and turn by the direction of rotation to see
1.2 Pump Construction: if rotor spins freely.
Horizontal multi-stage centrifugal pump, non 2.2.4 The position of the connection box is adjustable.
self-priming, co-axial pump/motor design, impellers It can be turned either side before the pump is
mounted on extended motor shaft. All parts in contact installed. The preset position from the factory is
with the pumped liquid are made of stainless steel. on the top of the motor. To change the position
of the connection box, please remove the bolts
1.3 Operation conditions: on the motor frame (4 bolts which are bolted
Ambient temperature: Max. 104oF (40oC ) into the chamber) and turn the stator housing
Liquid temperature range: 32oF (0oC) to 194oF (90oC) to the required position. Replace the screws and
Operating pressure: Max. 142 psi tighten securely.
Inlet pressure: Max. 85 psi

2. Installation and piping

2.1 Installation site
2.1.1 For secure operation, please mount and bolt the
pump base to the foundation.
2.1.2 Select a dry and good ventilated site and provide
accessible space around the pump for future 2.3 The pump should be installed so that the suction
maintenance and service. pipe is as short and the suction lift as small as
2.1.3 Make sure the ambient temperature is below possible.
104oF(40oC) and the flowing liquid temperature 2.4 When you draw liquid from the same level of the
does not exceed 194oF(90oC) . pump suction inlet, please allow a slope from the
2.1.4 Do not operate the pump under explosive liquid source to your suction inlet to avoid air
environment. sucked in. If it is to pump liquid from a level lower
2.1.5 Horizontal installation is recommended. When it than the pump suction inlet, a foot valve check
is installed in other positions, please provide valve must be fitted to the end of the suction
drain holes to allow drainage of the pump. pipe.
2.1.6 Indoor: TO avoid your furniture damage, do not 2.5 Please select the pipe size specified in the
install the pump on ceiling, carpet or any place specifications. Smaller piping will cause
close to electrical appliance, and also must considerable pressure loss and affect pump
provide drain hole. efficiency.

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2.6 All piping joints must be completely tight. Leakage
in suction piping may result in the loss of the Priming plug
suction capability. Leakage in discharge piping
may cause the "cycling" of the pump.
2.7 Please do not allow any foreign objects (chewing
gum, dirt, and sand etc.) fall into the pump or
motor.
2.8 The pump lifting capacity is related to the
temperature of flowing liquid. Under normal
flowing temperature (68oF - 86oF), it will lift up to
16Ft. At high temperature operation (over 140oF),
the pump must be installed at the level lower
3.1.2.3 Pour water through the priming port. Make
than the liquid source or the pump inlet pressure
sure that the suction pipe and pump are
must be higher than 1 atmosphere (15 PSI).
completely filled with liquid and vented.
2.9 It is extremely dangerous to run the pump against
3.1.2.4 Replace the priming plug and tighten it.
a closed discharge valve, because it will cause
3.2 Start the pump and slowly open the discharge
extremely high liquid flow temperature and
valve until it is fully open.
damage your pump. You may connect a bypass/a
3.3 If there is no discharge flow after a few minutes,
drain to the discharge pipe to allow a minimum
please turn off the pump and repeat the Process
liquid flow through the pump.
of 3.1 Turn the pump on and off several times
2.10 Metal piping is recommended when the
until it is working normally.
operations require high lifting head or high liquid
3.4 When pump is working on normal condition,
temperature.
measure the motor current and check it with the
2.11 In systems with hot liquids (over 140oF), extra
nameplate value. If it exceeds the rated value,
caution should be exercised to prevent from
please reduce the lifting capacity or fully open
personal injury caused by escaping water.
the valve.
3.5 When pump is not in use for a period, it should be
3. Operation instructions drained by removing the priming and drain plugs.
3.1 Priming For start up after long time inactivity, please
Do not start the pump until it has been primed. Follow check if the impeller and mechanical seal are free.
the following priming instruction: If they are locked up by sand, rust or something
3.1.1 Booster systems and systems where the liquid else please clean them up.
level on the suction side is above the pump inlet:
3.1.1.1 Close the isolating valves either side of the Priming plug
pump.
3.1.1.2 Remove the priming plug, fig. 2.
Priming plug

Drain plug

Fig. 4
4. Sound pressure level
Motor
(HP) LA dB(A)
Fig. 2
½ <70
3.1.1.3 Slowly open the suction valve and keep it open ¾ <70
until a steady stream of liquid runs out the 1 <70
priming port. 1½ 71
3.1.1.4 Replace the priming plug and tighten it. 2 72
3 76
3.1.2 Pumping from tanks and wells where the liquid 5 78
level on the suction side is below the pump inlet: 7½ 78
3.1.2.1 Close the discharge isolating valve. 10 78
3.1.2.2 Remove the priming plug, fig. 3. 15 78

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5. Wiring diagram

1Ø 3Ø
CONNECTING
CONNECTING
U2 V2 W2 U2 V2 W2
U1 V1
U5 V5 W5 U5 V5 W5

C099D5400103
230V U1 V1 W1 U1 V1 W1

230V 460V
1Ø

C099D5410109
CONNECTING
W2 U2

3Ø
U1 V1 CONNECTING
W6 U6 V6 W5 U5 V5
115V
W2 U2 V2 W2 U2 V2
W2 U2
U5 V5 W5 W6 U6 V6
U1 V1
U1 V1 W1 U1 V1 W1

230V
230V 460V

C099D5410206
C099D5400201

6. Fault finding
(Make sure to disconnect the power before attempting to diagnose any fault.)
Fault Cause
1. Pump does not start 1. Check if electrical power source, fuse or circuit breaker
failed.
2. Check if pump is locked up by sand, rust or any foreign
objects.
3. Check if the motor is defective due to overload or
other causes.
2. Pump runs at reduced capacity or no 1. If it is a three phase motor, please check if the
discharge water direction of rotation is correct.
2. Check if the inlet source is sufficient, the suction lift is
not too great and the temperature is within the
normal range.
3. Check if there is any leakage in suction pipe, check
valve works normal and mechanical seal is not
defective etc.
3. Pump stops during operation 1. Motor overheat due to excessive suction lift or too
high liquid temperature.
2. Control circuit has cut out (pressure switch or level
controller).

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Dimensions ( TPH 2/4 )
Outlet NPT1" D PT 3/8" 5.59

2T: NPT 1"

Inlet
4T: NPT 1¼"
8.90
7.95
6.38 (1Ø)
(3Ø)
3.54

5.43 C 4-Ø0.33 4.25

6.30 B PT 3/8" 5.12
A
TPH 2T TPH 4T
Model A(in.) B(in.) C(in.) D(in.) Model A(in.) B(in.) C(in.) D(in.)
TPH 2T 1K 12.01 1.81 2.91 3.90 TPH 4T 2K 12.36 2.83 3.27 4.29
TPH 2T 2K 12.01 1.81 2.91 3.90 TPH 4T 3K 15.00 3.90 4.33 5.31
TPH 2T 3K 12.72 3.19 3.62 4.61 TPH 4T 4K 16.06 4.96 5.39 6.38
TPH 2T 4K 13.43 3.90 4.33 5.31 TPH 4T 5K 17.13 6.02 6.46 7.44
TPH 2T 5K 15.71 4.61 5.04 6.05 TPH 4T 6K 19.37 7.09 7.52 8.54
TPH 2T 6K 16.42 5.31 5.75 6.73

Dimensions ( TPH 8/12 )

Outlet NPT 1½"
D 7.17
PT ½"

Inlet NPT 1½"

9.49
7.44
4.37

PT ½"
5.43 C 4-Ø0.33 4.25
6.30 B 5.12
A
Outlet NPT 1½"
TPH12T5K D
PT ½"
7.17

Inlet NPT 1½"

9.45
7.4
4.33

PT ½"
5.43 C 4-Ø0.33 6.30
9.45 B 7.48
A
TPH 8T TPH 12T
Model A(in.) B(in.) C(in.) D(in.) Model A(in.) B(in.) C(in.) D(in.)
TPH 8T 2K 13.19 3.03 3.46 2.95 TPH 12T 1K 13.19 3.03 3.46 2.95
TPH 8T 2.5K 16.02 4.29 4.72 4.21 TPH 12T 2K 14.76 3.03 3.46 2.95
TPH 8T 3K 16.02 4.29 4.72 4.21 TPH 12T 3K 17.13 4.29 4.72 4.21
TPH 8T 4K 17.13 4.29 4.72 4.21 TPH 12T 4K 17.13 4.29 4.72 4.21
TPH 8T 5K 18.46 5.63 6.06 5.55 TPH 12T 5K 20.87 5.63 7.63 5.55

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Dimensions ( TPH 25T )

Outlet NPT 3"

D 9.63

PT ½"

Inlet NPT3"
12.6

5.79

PT ½"
7.87 C 4-Ø0.47 6.61
11.02 B 7.48
A

TPH 25T 60Hz

Model A(in.) B(in.) C(in.) D(in.)
TPH 25T 2K 21.16 6.24 7.81 4.72
TPH 25T 3K 23.52 8.60 10.18 7.09
TPH 25T 4K 23.52 8.60 10.18 7.09
TPH 25T 5K 27.85 10.96 12.54 9.45
TPH 25T 6K 27.85 10.96 12.54 9.45

Dimensions ( TPH 50T )

Outlet NPT 4" 9.65

D
PT ½"

Inlet NTP 4"

12.8

5.79

PT ¼"
7.87 C 4-Ø0.47 6.61
11.02 B 7.48
A

TPH 50T 60Hz

Model A(in.) B(in.) C(in.) D(in.)
TPH 50T 2.5KF 22.93 7.99 9.57 6.38
TPH 50T 4KF 27.26 10.35 11.93 8.74
TPH 50T 5KF 29.23 10.35 11.93 8.74

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 Limited Warranty
Products manufactured by Walrus Pumps Co (Walrus) are warranted to the first 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 specific legal
rights and obligations, however, additional rights may exist, which may vary from state to
state.

Supersedes all previous publications

CC70D0001D600UW0R02

Walrus America Inc

20220 Hempstead Road, Suite #30, Houston, TX 77065
Web: www.walrusamerica.com