RUTHMAN RAE Pumps GTPH Series User manual

Installation,
Operation, and
Maintenance Manual
GTPH Series
Multistage Horizontal
External Mount Pumps
RAE Pumps
1212 Streng Street
Cincinnati, OH 45223
513.779.3034
www.RAEPumps.com
60 Hz
MODELS
GTPH 2T
GTPH 4T
GTPH 8T
GTPH 12T
GTPH 25T
GTPH 50T

Table of Contents
INTRODUCTION ............................................................................................................................ 03
SPECIFICATIONS–SECTION A .................................................................................................... 03
MODEL CODE EXPLANATION.......................................................................................... 03
OPERATING PARAMETERS ............................................................................................. 04
MOTOR DATA .................................................................................................................... 04
INSTALLATION–SECTION B ........................................................................................................ 04
INSTALLATION SITE.......................................................................................................... 04
PIPING................................................................................................................................ 04
ELECTRICAL CONNECTION–SECTION C .................................................................................. 05
SPECIFICATIONS .............................................................................................................. 05
CONNECTION .................................................................................................................... 05
ROTATION DIRECTION..................................................................................................... 05
POSITIONING CONNECTION BOX................................................................................... 05
WIRING DIAGRAMS........................................................................................................... 05
OPERATION AND MAINTENANCE–SECTION D......................................................................... 05
PRIMING............................................................................................................................. 06
START UP .......................................................................................................................... 06
LUBRICATION .................................................................................................................... 06
SUCTION FILTER............................................................................................................... 06
PERIODIC INSPECTION.................................................................................................... 06
TROUBLESHOOTING–SECTION E .............................................................................................. 07
DIMENSIONS–SECTION F ............................................................................................................ 08
GTPH 2T DIMENSIONS, WEIGHTS and OUTLINE DRAWING ........................................ 08
GTPH 4T DIMENSIONS, WEIGHTS and OUTLINE DRAWING ........................................ 08
GTPH 8T DIMENSIONS, WEIGHTS and OUTLINE DRAWING ........................................ 09
GTPH 12T DIMENSIONS, WEIGHTS and OUTLINE DRAWING ...................................... 09
GTPH 25T DIMENSIONS, WEIGHTS and OUTLINE DRAWING ...................................... 10
GTPH 50T DIMENSIONS, WEIGHTS and OUTLINE DRAWING ...................................... 10
WARRANTY–SECTION G ............................................................................................................. 11
Please read this manual carefully before
beginning installation and operation.

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INTRODUCTION
This Installation, Operation, and Maintenance Manual is designed to help you get the best performance
and longest life from your RAE pump.
This pump is a GTPH Series multistage horizontal centrifugal pump. This pump should be mounted
externally during operation and primed before use.
GTPH Series pumps are intended for industrial use to carry fluids such as water, coolant, light oil and
other clean, non-aggressive liquids.
Standard pump construction is stainless steel wetted parts.
If there are any questions regarding the pump or its applications which are not covered in this manual,
or in other literature accompanying this unit, please contact your RAE Pumps distributor, or write:
RAE Pumps
1212 Streng Street
Cincinnati, OH 45223
513.779.3034
[email protected]
www.RAEPumps.com
For information or technical assistance on the power source, contact the power source manufacturer’s
local dealer or representative.
! DANGER !
This pump is not intended to transfer explosive liquids, such as gasoline, diesel oil and other
similar liquids. It is only suitable for water, and diluted, low viscosity, non-corrosive cooling or
lubricant liquids.
SPECIFICATIONS–SECTION A
MODEL CODE EXPLANATION
The pump models are coded based on the
number of pump stages/impellers. Standard
stages consist of both diffusers and impellers.
GTPH 25T and 50T models have an F at the
end of the model code, indicating a flange type
connection.
The pump model is shown on the pump
nameplate.

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OPERATING PARAMETERS
Ambient temperature: Max 104°F
Liquid temperature range: 32°F to 194°F
Operating pressure: Max 142 psi
Inlet pressure: Max 85 psi
GTPH 2T GTPH 4T
Flow (gpm): 4 to 16 8 to 36
Head (feet): 20 to 220 25 to 240
GTPH 8T GTPH 12T
Flow (gpm): 17 to 44 35 to 70
Head (feet): 40 to 160 10 to 210
GTPH 25T GTPH 50T
Flow (gpm): 65 to 200 130 to 380
Head (feet): 20 to 220 40 to 190
MOTOR DATA
Nominal speed: 3500 rpm at 60 Hz
Standard voltage: 3 phase; 230V/460V
Protection class: IP54
Insulation class: F
INSTALLATION–SECTION B
! WARNING !
When running, the motor surface
temperature is extremely high. Mount pump
in a safe place to avoid accidental touch.
INSTALLATION SITE
1. Select a dry and good ventilated site and
provide accessible space around the pump
for future maintenance and service.
2. Mount and bolt the pump base to the
foundation.
3. Make sure the ambient temperature is
below 104ºF and the pumped liquid
temperature does not exceed 194ºF.
4. Do not operate the pump in an explosive
environment.
5. Horizontal installation is recommended.
When it is installed in other positions, rotate
intake flange so that drain hole is at the
lowest position.
6. Indoor: do not install the pump on ceiling,
carpet, or near electrical appliances.
Provide drain hole.
7. Outdoor: provide a suitable cover to protect
pump from weather and frost, prevent
debris from falling into the motor fan cover.
PIPING
1. The pump should be installed so that the
suction pipe is as short as possible.
2. When you draw liquid from the same level
of the pump suction inlet, allow a slope from
the liquid source to the suction inlet to avoid
air lock. If it is to pump liquid from a level
lower than the pump suction inlet, a foot
valve check valve must be fitted to the end
of the suction pipe.
3. Select the pipe size specified in the pump
outline drawings in DIMENSIONS
SECTION-F. Smaller piping will cause
considerable pressure loss and affect pump
efficiency.
4. All piping joints must be completely tight.
Leakage in suction piping may result in the
loss of the suction capability. Leakage in
discharge piping may cause the "cycling" of
the pump.
5. Prevent any foreign objects (chewing gum,
dirt, and sand etc.) from falling into the
pump or motor.
6. The pump lifting capacity is related to the
temperature of the pumped liquid. Under
normal liquid temperature (68ºF – 86ºF), it
will lift up to 16Ft. At high temperature
operation (over 140ºF), the pump must be
installed at the level lower than the liquid
source or the pump inlet pressure must be
higher than 15 psi.
7. It is extremely dangerous to run the pump
against a closed discharge valve. Doing so
will cause extremely high liquid flow
temperature and damage the pump.
Connect a bypass/a drain to the discharge
pipe to allow a minimum liquid flow through
the pump.
8. Metal piping is recommended when the
operations require high lifting head or high
liquid temperature.

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ELECTRICAL CONNECTION– SECTION C
! WARNING !
Electrical installation should be carried
out in accordance with the local
electrical code. Make sure that the
electricity supply has been switched off
before electrical connection.
Use care when accessing pump
electrical components.
SPECIFICATIONS
Electrical specifications (voltage, hertz) are
shown on the pump nameplate. Verify that the
power supply voltage and hertz match pump
requirements. An external ON/OFF switch must
be installed.
CONNECTION
Electrical connection should be in accordance
with diagram shown on the connecting box, and
motor current should be within rated amps as
shown on nameplate. Three phase pump
requires extra magnetic starter with protection.
ROTATION DIRECTION
On this three phase motor, rotating direction is
critical. The rotating direction is indicated on the
fan cover (counterclockwise viewing from fan
cover end). Interchanging any two leads with
power off can reverse the pump rotation.
POSITIONING CONNECTION BOX
The position of the motor connecting box is
adjustable. The preset position from the factory
is on top of the motor. It can be turned to either
side before the pump is installed.
To change the position of the connection box,
remove the bolts on the motor frame (4 bolts
which are bolted into the chamber) and turn the
stator housing to the required position (Figure
1). Replace the screws and tighten securely.
Figure 1
WIRING DIAGRAMS
OPERATION AND MAINTENANCE–SECTION D
! WARNING !
The pump cannot be operated with
discharge outlet fully closed. Doing so
will raise the liquid temperature
abnormally, and damage the pump after
5 minutes.
! WARNING !
The pump cannot be used to transfer
explosive liquids.
Extra protective gear is required if the
working liquid temperature exceeds
140°F to avoid scald hazard.

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The pump should not be used to transfer
toxic or contaminated liquid. Warranty
will be void if the pump application is not
in compliance with the installation and
operation procedures.
! CAUTION !
This pump must be primed before start
up.
PRIMING
Booster systems and systems where the
liquid level on the suction side is above the
pump inlet:
1. Close the isolating valves either side of
the pump.
2. Remove the priming plug (Figure 2).
3. Slowly open the suction valve and keep
it open until a steady stream of liquid
runs out the priming port.
4. Replace the priming plug and tighten.
Figure 2
Pumping from tanks and wells where the
liquid level on the suction side is below the
pump inlet:
1. Close the discharge isolating valve.
2. Remove the priming plug (Figure 3).
3. Pour water through the priming port.
Make sure that the suction pipe and
pump are completely filled with liquid
and vented.
4. Replace the priming plug and tighten.
Figure 3
START UP
Start the pump and slowly open the
discharge valve until it is fully open.
If there is no discharge flow after a few
minutes, turn off the pump and repeat the
priming process. Repeat as needed until
pump is working normally.
When pump is operating normally, measure
the motor current and check it with the
nameplate value. If it exceeds the rated
value, please reduce the lifting capacity or
fully open the valve.
When pump is not in use for a period, it
should be drained by removing the priming
and drain plugs (Figure 4). For start up after
long time inactivity, verify the impeller and
mechanical seal are free of debris. Clean if
locked up by sand, rust or other debris.
Figure 4
LUBRICATION
The mechanical seal and shaft sleeves
inside the pump are lubricated by working
liquid.
SUCTION FILTER
For maximum performance, the suction filter
should be always kept clean and free from
obstructions.
PERIODIC INSPECTION
The following checks should be carried out
periodically to ensure normal operation:
1. Measure the discharge and output
pressure.
2. Inspect piping and joints for leaks.
3. Examine the motor starter/container.

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TROUBLE SHOOTING–SECTION E
! WARNING !
Verify electrical supply has been switched off before trouble shooting.
Fault Possible Causes
Motor 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 foreign
objects
3. Check if motor is defective due to overload or other
causes
Pump runs at reduced capacity
or does not discharge liquid
1. Verify rotation direction
2. Check inlet source is sufficient, the suction lift is not
too great, and the temperature is within normal range
3. Check for leakage in suction pipe, verify normal valve
operation, check mechanical seal for defects.
Pump stops during operation 1. Motor overheated due to overload or other causes
2. Control circuit has cut out (pressure switch or level
controlle
r

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DIMENSIONS AND WEIGHT–SECTION F
GTPH 2T
Model A B C D Weight
(inches) (inches) (inches) (inches) (pounds)
GTPH2T2K 12.01 1.81 2.91 3.90 26.0
GTPH2T3K 12.72 3.19 3.62 4.61 26.2
GTPH2T4K 13.43 3.90 4.33 5.31 26.5
GTPH2T5K 15.71 4.61 5.04 6.05 29.8
GTPH2T6K 16.42 5.31 5.75 6.73 30.0
GTPH 2T
GTPH 4T
Model A B C D Weight
(inches) (inches) (inches) (inches) (pounds)
GTPH4T2K 12.36 2.83 3.27 4.29 25.8
GTPH4T3K 15.00 3.90 4.33 5.31 29.3
GTPH4T4K 16.06 4.96 5.39 6.38 31.1
GTPH4T5K 17.13 6.02 6.46 7.44 31.3
GTPH4T6K 19.37 7.09 7.52 8.54 35.5
GTPH 4T

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GTPH 8T
Model A B C D Weight
(inches) (inches) (inches) (inches) (pounds)
GTPH8T2K 13.19 3.03 3.46 2.95 41.7
GTPH8T3K 16.02 4.29 4.72 4.21 43.0
GTPH8T4K 17.13 4.29 4.72 4.21 48.5
GTPH8T5K 18.46 5.63 6.06 5.55 57.5
GTPH 8T
GTPH 12T
Model A B C D Weight
(inches) (inches) (inches) (inches) (pounds)
GTPH12T1K 13.19 3.03 3.46 2.95 40.1
GTPH12T2K 14.76 3.03 3.46 2.95 43.4
GTPH12T3K 17.13 4.29 4.72 4.21 59.5
GTPH12T4K 17.13 4.29 4.72 4.21 63.9
GTPH12T5K 20.83 5.63 6.06 5.55 79.0
GTPH 12T

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GTPH 25T
Model A B C D Weight
(inches) (inches) (inches) (inches) (pounds)
GTPH25T2KF 21.16 6.24 7.81 4.72 112.3
GTPH25T3KF 23.52 8.60 10.18 7.09 125.1
GTPH25T4KF 23.52 8.60 10.18 7.09 125.6
GTPH25T5KF 27.85 10.96 12.54 9.45 151.5
GTPH25T6KF 27.85 10.96 12.54 9.45 152.0
GTPH 25T
GTPH 50T
Model A B C D Weight
(inches) (inches) (inches) (inches) (pounds)
GTPH50T2.5KF 22.93 7.99 9.57 6.38 122.4
GTPH50T4KF 27.26 10.35 11.93 8.74 171.0
GTPH50T5KF 29.23 10.35 11.93 8.74 191.8
GTPH 50T

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M-RC20-007/10-20
www.RAEPumps.com | 513.779.3034
WARRANTY–SECTION G
RAE Pumps will replace, within one year of shipment from our plant, any pump that, in our judgment,
has failed due to defects in materials or workmanship, provided the pump has been properly installed
and maintained and has not been subject to abuse.
Modifications, including removal of pump tags or misapplication, void this warranty.
Pump must return to RAE Pumps with complete history of service for inspection and warranty
consideration.
RAE Pumps does not accept the responsibility for transportation to and from our plant. Furthermore, we
do not assume any responsibility for consequential damage or loss of production.