Wright Flow Technologies TR-IS Series User manual

Installation, Operation, and
Maintenance Manual
TR-IS Series
INTERNAL, BALANCED MECHANICAL SEAL
CENTRIFUGAL PUMP
02-11

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
2
TR-IS
Thank you for purchasing a Wright Flow product!
This manual contains installation, operation, cleaning, and maintenance instructions
for the TR-IS Series.
It also includes a parts list, a troubleshooting chart to assist in determining pump
malfunction, and practical advice for the maintenance and operation of the equipment.
About this Manual
Wright Flow Technologies Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
Important Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Assembly Preliminaries . . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . .
6
TR-IS General Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
TR-IS Part List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
Start the Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
1. Leg Bracket Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
2. Assembling the Adapter to the Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
3. Spacing of the Impeller and Stub Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
4. Assembling the Single Mechanical Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
5. Assembling the Double Mechanical Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
6. Assembling the Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
CONTENT

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
3
TR-IS
ABOUT THIS MANUAL
To ensure the best performance of your pump, please read this manual before operating it. You
will find useful information and instructions for the assembly and disassembly procedures required
for necessary pump maintenance.
For any questions related to the installation, operation, or maintenance of this pump, please
contact your local distributor or Wright Flow Technologies:
Wright Flow Technologies, Inc.
406 State Street
Cedar Falls, IA 50613 U.S.A.
Call: USA [phone] / EU [phone]
Fax: USA [phone] / EU [phone]
[e-mail] / [e-mail]
The information in this manual may change without notice. We recommend visiting our website
for any updates.
Wright Flow Technologies Warranty
Wright Flow Technologies warrants all products manufactured by it to be free from defects in
workmanship or material for a period of one (1) year from date of startup, provided that in no
event shall this warranty extend more than eighteen (18) months from date of shipment from
Wright Flow Technologies. If during said warranty period, any products sold by Wright Flow
Technologies prove to be defective in workmanship or material under normal use and service,
and if such products are returned to Wright Flow Technologies factory at Cedar Falls, Iowa,
transportation charges prepaid, and if the products are found by Wright Flow Technologies to
be defective in workmanship or material, they will be replaced or repaired free of charge,
F.O.B. Cedar Falls, Iowa.
Wright Flow Technologies assumes no liability for consequential damages of any kind and the
purchaser by acceptance of delivery assumes all liability for the consequences of the use or
misuse of Wright Flow Technologies products by the purchaser, his employees or others.
Wright Flow Technologies will assume no field expense for service or parts unless authorized
by it in advance.
Equipment and accessories purchased by Wright Flow Technologies from outside sources,
which are incorporated into any Wright Flow Technologies product, are warranted only to the
extent of and by the original manufacturer’s warranty or guarantee, if any.
THIS IS WRIGHT FLOW TECHNOLOGIES’S SOLE WARRANTY AND IS IN LIEU OF ALL OTHER
WARRANTIES EXPRESSED OR IMPLIED, WHICH ARE HEREBY EXCLUDED, INCLUDING IN
PARTICULAR ARE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
No officer or employee of IDEX Corporation or Wright Flow Technologies is authorized to alter
this warranty.
ABOUT
THIS
MANUAL

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
4
TR-IS
SAFETY
IMPORTANT SAFETY INFORMATION
Safety is very important!
DO NOT attempt to modify any Wright Flow product! The TR-IS series centrifugal pumps
have been designed to be safe and reliable. Any modifications could create unsafe
conditions and void all warranties.
DO NOT place any Wright Flow product in an application where general product service
ratings are exceeded! If the instructions in this manual are not observed and/or adhered
to, personal injury and/or machine damage could result.
The following DANGER, WARNING, and CAUTION signs and their meanings are used within
these instructions. Follow these signs to avoid serious injury and/or possible damage to
equipment.
CODE 136530001
(Rotating direction ccw)
CODE 136530002
(Guard warning)
Safety labels are placed on every pump. DO NOT remove any labeling on any Wright Flow
product. Replace any label that is missing.
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury. The word danger is used in
the most extreme cases.
DANGER
Indicates a potentially hazardous situation
which, if not avoided, could result in minor
or moderate injury. May also be used to alert
against an unsafe operating or main-
tenance practice.
WARNING
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
CAUTION
WARNING
ROTATING SHAFT
DO NOT OPERATE WITHOUT
GUARD IN PLACE

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
5
TR-IS
DESCRIPTION
Before servicing pump, disconnect the electrical power source.
The TR-IS series are closed-coupled pumps and are made up of two sections: power or
drive section, and the liquid end or pump section.
The pump is mounted to the frame of the drive motor by means of an adapter and is
coupled to the motor shaft. The impeller mounts on the stub shaft and is retained by one of
three possible methods. The casing is fixed to the adapter with screws, allowing positioning
of the discharge outlet at 0°, 45° and 90°. The internal, balanced mechanical seal (single
or double) assures long seal life. The drive motor is mounted on a frame that has adjustable
legs, providing simple installation and leveling.
INSTALLATION GUIDELINES
UNPACKING EQUIPMENT
Check the contents and all wrapping when unpacking your equipment. Inspect all parts for
damage that may have occurred during shipping. Report any damage to the carrier.
LOCATION AND INSTALLATION
The pump unit should be located as near as possible to the liquid source and in a position
where the suction piping can be short and direct with a minimum number of elbows and
fittings. It should also be readily accessible for inspection and cleaning.
The pump unit, as received from the factory, is ready for installation. To install it, attach
a hoist (if necessary), loosen the set screws in the adjusting leg brackets, and individually
adjust the legs until the pump is leveled. Tighten the set screws.
Attach the suction and discharge piping. Be sure suction and
discharge piping is properly supported to avoid any strain on the
pump casing.
INSTALL ATION
Before servicing pump, disconnect the
electrical power source, carefully relieve all
pressure, and drain all fluids from pump and
connected piping.
WARNING

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TR-IS SERIES Centrifugal Pump
6
TR-IS
ASSEMBLY PRELIMINARIES
Before beginning the assembly procedure, identify every element that is going to be
installed. An exploded view and part list shown on pages 7 and 8. During the assembly,
you may need the following tools:
1. 1”, 3/4”, 9/16” and 1/2” Wrenches.
2. 3/16” and 1/4” Allen wrenches.
3. Rubber mallet.
4. Shims with different thicknesses: 0.005”, 0.010” and 0.020”.
5. Ratchet handle and sockets 5/8” and 7/8”, – for impeller nut.
6. 3/8” diameter steel rod – to avoid the stub shaft from turning.
7. Torque Wrench.
INSTALLATION
Before servicing pump, disconnect the
electrical power source, carefully relieve all
pressure, and drain all fluids from pump and
connected piping.
WARNING

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TR-IS SERIES Centrifugal Pump
7
TR-IS
TR-IS GENERAL DIAGRAM
GENERAL DIAGRAM

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TR-IS SERIES Centrifugal Pump
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TR-IS
TR-IS PART LIST
ITEM
PART DESCRIPTION
QTY
1
CASING
1
2
CASING O-RING
1
3
IMPELLER NUT PLUS
1
4
IMPELLER NUT GASKET
1
5
IMPELLER TR-IS
1
6
MECHANICAL SEAL
1
6A
ROTARY HOLDER
1
6B
INTERNAL ROTARY FACE
1
6C
STATIC FACE
1
6D
EXTERNAL ROTARY FACE (DOUBLE MECHANICAL SEAL)
1
6E
INTERNAL ROTARY SPRING
1
6F
EXTERNAL ROTARY SPRING (DOUBLE MECHANICAL SEAL)
1
6G
O-RING INTERNAL ROTARY HOLDER (DOUBLE MECHANICAL SEAL)
1
6H
O-RING OUTBOARD ROTARY HOLDER
1
6I
O-RING STATIC FACE
1
6J
O-RING STATIC FACE FRONT
1
6K
O-RING STATIC FACE BACK
1
6L
O-RING EXTERNAL ROTARY FACE (DOUBLE MECHANICAL SEAL)
1
7
BACKPLATE
1
8
PLUG (SINGLE MECHANICAL SEAL)
2
9
RACOR FLUSH (DOUBLE MECHANICAL SEAL)
2
10
STUBSAHFT
1
11
STUBSHAFT PIN
1
12
STUBSHAFT KEY
1
13
STUBSHAFT COLLAR
1
14
COLLAR BOLT
1 OR 2
15
ADAPTER
1
16
ADAPTER GUARD
1
17
ADAPTER GUARD BOLT
1
18A
ADAPTER HEXAGONAL SCREW
4
18B
ADAPTER HEXAGONAL NUT
4
19
WASHER
4
20
CASING HEXAGONAL SCREW
4
21
WASHER
4
22
BACKPLATE HEXAGONAL SCREW
4
TR-IS PART LIST

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
9
TR-IS
START THE ASSEMBLY
It is highly recommended that the general diagram is used to help identify the components used
in carrying out the assemblies and sub-assemblies that are explained below.
1. LEG BRACKET ASSEMBLIES
The leg bracket assemblies are optional. They allow leveling of the pumps via adjusting the legs
vertically. The size of the brackets (209) and legs (207) depend on the NEMA or IEC motor
frame.
First, affix the legs to the brackets with the hexagonal screws (209A). Next, with the hexagonal
screws (209B), attach the brackets to the motor base. You may need to lift the motor to make
this assembly. Please reference Figure A.
Figure A
ASSEMBLY
209B
209A
209
207

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
10
TR-IS
ASSEMBLY
2. ASSEMBLY OF THE ADAPTER TO THE MOTOR
Place the stainless adapter (15) on the motor flange and fasten it with hexagonal screws.
Tighten to the torque values recommended in Chart 1.
Chart 1 –Torque values for tightening the adapter screws
Torque ft-lb
Models NEMA
Models IEC
20
Frame 56 to 14
Frame 80 to 90
55
Frame 18 to 25
Frame 100 to 160
70
Frame 28
Frame 180
110
Frame 32 to 36
Frame 200 to 225
For “C” face NEMA motors, use the four hexagonal screws (18A). Figure B.
Figure B
For “FF” face (B5 flange) IEC motors, use the four hexagonal screws (18A) and the
hexagonal nuts (18B). Figure C.
Figure C
18A
15

11
OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
TR-IS
3. SPACING OF THE IMPELLER AND STUB SHAFT
The correct operation of the pump depends on the separation of the impeller (5) from the
backplate (7), and the fixation of the stub shaft (10) on the motor shaft. Follow the ensuing steps
to install the stub shaft on to the motor shaft.
3a. Position the stub shaft collar (13) with the corresponding Allen screws (14) loosely on the
stub shaft and place it on the motor shaft. It must slide in and out without problem. Figure D.
Figure D
3b. Place and secure the backplate (7) into the adapter using the four hexagonal screws (22) and
washers (21). The orientation of the backplate is with the flushing holes in a vertical position;
those holes are used only with the double mechanical seal and the backplate has a square shape
in the back to keep the static face of the mechanical seal in place. Figure E.
ASSEMBLY
14
13
10
22
21
7

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
12
TR-IS
ASSEMBLY
Figure E
3c. Place only the rotary holder of the mechanical seal (6A) together with its respective O-ring
(6H) until it seats on the shoulder of the stub shaft. Put the impeller key (12) on the keyway of
the stub shaft. The impeller key should not interfere with the mechanical seal rotary holder.
Take the impeller nut (3) and place the impeller gasket (4) on it. Then place the impeller on the
stub shaft and tighten with the impeller nut; compressing the assembly. Figure F.
Use a 5/8” hexagonal socket for models 114 and 214. Use a 7/8” hexagonal socket for the rest of
models to tighten the nut.
To prevent the stub shaft-impeller assembly from turning, insert a Ø3/8” plastic or soft dowel in
the bore that has the stub shaft on its side. Thus, the impeller nut can be tightened or loosened.
Figure G.
Figure G
Remember, water or dish soap can be used to lubricate or stick the O-rings and gaskets to the
metal elements. This will help facilitate assembly.
12
6H
6A
Figure F
Ø3/8” rod

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
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TR-IS
3d. Once the assembly is tightened, place a spacer between the back of the impeller and the
front of the backplate. Use a spacer of 0.025” (0.63 mm) thru 0.030” (0.76 mm) for models 114,
214, 216 & 316; and a spacer of 0.035” (0.89 mm) thru 0.040” (1.00 mm) for models 218, 318,
328, 428, 4410 & 6410. Use a caliper or some shims to set the critical distance required for the
correct performance of the mechanical seal. Keep both the stub shaft slot and the collar slot
aligned before tightening the screw (or screws) on the shaft collar. Compress the impeller against
the backplate with the spacer between them and proceed to tighten the screw or screws on the
shaft collar. Figure H.
Align stub shaft
and collar slots
0.025” (0.63 mm)
thru 0.030” (0.76 mm)
or
0.035” (0.89 mm)
thru 0.040” (1.00 mm)
Figure H
Use the torque values shown in Chart 2 to tighten the collar screws. Next, turn the impeller by
hand. It must turn with no restriction. Check that every blade is separated by the distance
indicated.
Chart 2 –Torque values for tightening the stub shaft collar Allen screws
Torque ft-lb
Models NEMA
Models IEC
15
Frame 56 to 18
Frame 80 to 112
30
Frame 21 to 25
Frame 132 to 160
40
Frame 28 to 32
Frame 180 to 225
ASSEMBLY

14
OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
TR-IS
6K
6C
6J
ASSEMBLY
3e. To remove the elements previously assembled, use the Ø3/8” plastic or soft dowel, the
hexagonal socket, and wrench to untighten the impeller nut. Take the impeller nut, impeller
gasket, impeller, and impeller key off. Do not forget to remove the spacer used to determine the
stub shaft position. Finally, remove the backplate and continue assembling the mechanical seal
(6). Figure I.
Figure I
Continue to Step 4 for instructions on the single mechanical seal assembly or go to Step 5 for
instructions on the double mechanical seal assembly.
4. ASSEMBLING THE SINGLE MECHANICAL SEAL
4a. Place the seal housing and the stationary face of the mechanical seal (6C) with its O-rings
(6J & 6K), into the backplate. First, place the O-ring (6J) on the stationary face groove, then
the O-ring (6K) on the back. The square shape in both parts must be aligned. Push until the first
O-ring fully seats in the housing. Figure J.
Figure J
Place and fix the backplate, with the stationary seal, into the adapter as in step 3b. Use the
torque value of 6 ft.lb (all models) to fix the backplate. Be careful not to make contact with the
seal and the stub-shaft end.

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
15
TR-IS
4b. Internal Rotary Seal Sub-Assembly
First, place the spring (6E) into the rotary holder (6A). The cut side must be centered with the
pin inside the rotary holder. It is recommended to place the tips of the spring touching the rotary
holder’s inside surface. Then, place the O-ring (6I) in the groove on the rotary holder. Put the
internal rotary seal face (6B) into the rotary holder. The pin must fit in the slot of the rotary seal
face. Next, compress until the rotary seal face is inserted. Finally, place the rotary holder O-ring
(6H) in the groove on the front of the holder. Figure K.
Figure K
4c. Insert the whole rotary seal sub-assembly onto the stub shaft. This will contact the stationary
seal face placed previously in the backplate. Push to compress the assembly and then insert the
impeller key into the stub-shaft. Assemble the impeller and tighten it with the impeller nut;
keeping in mind to place the impeller gasket into the impeller nut. Figure L.
ASSEMBLY
Figure L

16
OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
TR-IS
ASSEMBLY
4d. Tighten the assembly as it is indicated in step 3c. For models 114and 214 use a torque value
of 25 ft.lb. For all other models, use a torque value of 40 ft.lb. Figure M.
Figure M
5. ASSEMBLING THE DOUBLE MECHANICAL SEAL
5a. Steps 1-3 must be completed prior to installing the double mechanical seal.
Place the external rotary face (6D) with its O-ring (6L) and external spring (6F) onto the stub-
shaft (10). The stub-shaft has a pin (11) which locks the external rotary seal of the double
mechanical seal.
First, insert the O-ring (6L) inside the rotary face (6D) groove. Continue by placing the spring
(6F) onto the stub-shaft until reaching the shaft shoulder; passing the spring at the back of the
pin. Finally, place the rotary face and O-ring onto the stub-shaft and push. The pin must fit the
machined slot in the rotary seal face. Figure N.
Figure N
6F
6D
6L

OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
17
TR-IS
5b. Place the stationary face of the mechanical seal (6C) with its O-rings (6J & 6K) into the
backplate seal housing. First, place the O-ring (6J) on the stationary face groove, then the O-ring
(6K) on the back. The square shape in both parts must be aligned. Push until the first O-ring fully
seats on the housing. Figure O.
Figure O
Install the backplate with the stationary seal into the adapter as in step 3b. For all models, use
the torque value of 6 ft.lb to secure the backplate. Be careful not to hit the seal with the stub-
shaft end.
5c. Internal Rotary Seal Sub-Assembly
First, place the spring (6E) into the rotary holder (6A). Note that the cut side must be centered
with the pin inside the rotary holder. It is recommended to place the tips of the spring touching
the rotary holder inside surface. Then, place the O-ring (6I) in the groove on the rotary holder.
Put the internal rotary seal face (6B) into the rotary holder. The pin must fit in the slot of the
rotary seal face. Next, compress until the rotary seal face is inserted. Finally, place the rotary
holder O-ring (6H) in the groove on the front of the holder. Figure P.
Figure P
6I
6E
6A
6H
6B
ASSEMBLY
6K
6C
6J

18
OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES Centrifugal Pump
TR-IS
ASSEMBLY
5d. Now, insert the whole rotary seal sub-assembly on to the stub-shaft. This will contact the
stationary seal face previously placed in the backplate. Push to compress the assembly and then
insert the impeller key into the stub-shaft. Place the O-ring (6G) onto the stub-shaft end; this O-
ring seals between the stub-shaft, the rotary holder, and impeller. Now, insert the impeller and
tight it with the impeller nut. Do not forget to place the impeller gasket into the impeller nut.
Figure Q.
5e. Due to the action of the two springs, it is normal to require some force to compress the
assembly when placing the rotary seal on to the stub-shaft. Tighten the assembly as it is indicated
in step 3c. Next, tighten the impeller nut. For models 114and 214, use a torque value of 25 ft.lb.
For all other models, use a torque value of 40 ft.lb. Figure R.
Figure R
Figure Q

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TR-IS SERIES Centrifugal Pump
19
TR-IS
Inlet
5f. Finally, place the racor flushes (9) on to the backplate; one on top and one at the bottom.
It is recommended to feed clean water to the double mechanical seal with a pressure of 10 to 15
psi maximum. This water should be from an external line. Use the bottom racor as the inlet and
the top as the outlet. Figure S.
Outlet
Figure S
ASSEMBLY

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TR-IS SERIES Centrifugal Pump
20
TR-IS
ASSEMBLY
6. ASSEMBLING THE CASING
6a. Once the mechanical seal has been installed and the impeller and impeller nut assembly has
been tightened, place the casing O-ring (2) onto the groove on the front of the backplate. Take
the casing (1) and place it onto the adapter. Position the discharge at the desired location and
use the four hexagonal screws (20) and washers (19) to install the casing. Figure T.
20
19
1
2
Horizontal Position
Figure T
To fix the casing, use the torque value of 6 ft.lb for models 114, 214, 216 & 316; and 11 ft.lb for
models 218, 318, 328, 428, 4410 & 6410.
Vertical Position
45 Degree Inclination