Wright Flow Technologies TR-C Series User manual

Installation, Operation, and
Maintenance Manual
TR-C Series
Centrifugal Pump

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
2
TR-C-
M02
Thankyou for purchasinga Wright Flow product!
This manual contains installation, operation, cleaning and maintenance
instructions for the TR-C, TR-C+ and IC+ series.
It also includes a part list, a troubleshooting chart to assist in determining pump malfunction,
and recommendations forthe maintenance and operation of the equipment.
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Wright Flow Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Safety. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
importantsafetyinformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Installation guidelines .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
How to installthe piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
Assemblypreliminaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
Exploded Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
Part List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Beginning theassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Leg bracketassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Adapterassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Spacing of the impeller and stub shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Assembling and installing the mechanical seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
Kit plus assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
Industrial T21 seal assembly -IC+ series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
General assembly inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
Impeller retention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
Casing assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
Before turning on the pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
Common Problems .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
CONTENTS

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
3
ABOUT THIS MANUAL
Toensurethebestperformanceof yourpump,pleasereadthismanual before installingandoperating
it. You will find useful information including instructions for pump disassembly and reassembly; as
required forrecommended pump maintenance.
For any questions related to the installation, operation, or maintenance of this pump, please contact
your local distributor or Wright FlowTechnologies:
Wright Flow Technologies, Inc.
406 State Street
Cedar Falls, IA 50613 U.S.A.
Call: USA [phone]/ EU+44 (0) 1323 509211
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.
WrightFlow TechnologiesWarranty
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 fromdate of startup, provided that in no event
shall this warranty extend more than eighteen (18) months fromdate of shipment fromWright 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 theproductsarefoundbyWrightFlowTechnologiestobedefectiveinworkmanshipormaterial,
they will be replaced or repaired freeof 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 forservice or parts unless authorized by itin advance.
Equipmentand accessoriespurchasedbyWrightFlowTechnologiesfromoutsidesources,whichare
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 isauthorized to alter this
warranty.
ABOUT THIS MANUAL

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
4
TR-C-
M02
SAFETY
IMPORTANTSAFETYINFORMATION
Safety is very important!
DO NOT attempt to modify any Wright Flow product, the TR-C series centrifugal pumps
have been designed to be safe and reliable. Modifyingthem 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 maintenance and operation personnel do not observe
the instructions in this manual, operation could result in personal injury or machine damage.
The following DANGER,WARNING,and CAUTIONsigns and their meanings are used within
these instructions 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. Immediately replace any label that is missing.
Indicates a potentially hazardous situation
which, if not avoided, could result in death or
serious injury.
CAUTION
WARNING
ROTATINGSHAFT
DO NOT OPERATE
WITHOUTGUARD IN PLACE
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 maintenance
practice.
WARNING

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
5
DESCRIPTION
Before servicing pump, disconnect the electrical power source.
The TR-C series closed-coupled pumps 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
methods. The casing is clamped to the adapter, greatly simplifying removal and permitting
positioning of the discharge outlet through 360º. The external, balanced seal assures a long
seal life. The drive motor is mounted on a frame that has adjustable legs; providing simple
installation and leveling.
INSTALLATIONGUIDELINES
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 forinspection and cleaning.
The pump unit as received from the factory is ready forinstallation. 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.
WARNING
Before servicing pump, disconnect the
electrical power source, carefully relieve
all pressure and drain all fluids from pump
and connected piping.
SAFETY

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
6
TR-C-
M02
INSTALLATION
HOWTO INSTALLTHEPIPING
GENERAL
This section provides some dos and don’ts of piping, which will aid in obtaining the maximum
efficiencyand service from your pump. Piping should be independently supported at both the
suction inlet and discharge outlet. Care should be taken that piping is properly aligned and
does not put any strain on the pump casing. The piping should haveas fewbends aspossible.
SUCTION PIPING
The suction piping should be short and follow a direct routewith a minimum number ofelbows
and fittings. Elbows should be located as far as possible from the suction inlet to prevent
head loss due to increased friction. Excessive friction losses in the suction line could result
in pump cavitation, causing poor performance, noise, vibration, damage to equipment, and
possible damage to the fluid.
Whenever possible the diameter of the piping at the suction inlet should be increased in size.
An eccentric tapered reducer should be used instead of a concentric tapered reducer to
prevent air pockets from formingand impairing pump efficiency.Inturn, the eccentric reducer
may be placed at the inlet of the pump and should be positioned so the straight side is up. A
horizontal suction pipe must have a gradual rise to the pump. A high point in the suction line
will form an air pocketand prevent proper pump operation. All joints in the suction line should
be airtight, to prevent air leakage that can reduce pump capacity and efficiency.
DISCHARGE PIPING
Position of the pump discharge is preferably either vertical or top horizontal. The discharge
piping should beshort and directwith aminimumnumber of elbows and fittings. Elbows should
not be used at the discharge outlet, as the friction encountered would be increased, resulting
in head loss. However,use of a larger discharge pipe than recommended may reduce the
total pump head, but increase the pump volume, which can cause pump vibration due to
overload. Use of a discharge pipe smaller than the pump discharge outlet increases the total
pump head but decreases the volume. If a reducer is required on the outlet port of the pump
and the discharge is vertical, a concentric reducer should be used. If the
dischargeishorizontalan eccentricreducershouldbe
used and should be positioned so the straight side is
down.
LOCATING VALVES
In suction lift applications where the lift is not very
high, it may be desirable to install a foot valve, to
facilitate priming and to prevent draining all the
liquid back to the source. A throttling valve should
be installed in the discharge piping to provide
control of the pump flow rate and prevent motor
overload.

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
ASSEMBLY PRELIMINARIES
Before beginning the assembly procedure, identify every element that is going to be installed.
You can use the exploded view and part list shown in pages 6 and 7. During the assembly
you may need the following tools:
1. 1", 3/4", 9/16" and 1/2" Wrenches.
2. 1/8", 5/32", 3/16" and 1/4" Allen wrenches.
3. Rubber mallet.
4. Caliper, useful when assemble seal type “E”.
5. 5/8" & 7/8" Socket –for impeller nut, for TR-C+ models.
6. 3/8" diameter steel rod –to hold stub shaft plus, for TR-C+ models.
7.Torque Wrench
Recently, we have added new lines to the known TR-C series: the kit plus, TR-C plus series,
and IC plus series for every specific application. There are some modifications in the
assembly in each one of these series without altering the operation of the equipment.
KIT PLUS (KIT+)
It is made up by a stub shaft plus, a stub shaft collar, a shaft key,animpeller plus, an impeller
nut, and the frontand back impeller gaskets. The collar may use one ortwo screws according
to the pump model. This assembly works the same as a standard assembly from the TR-C
series.
TR-C PLUS (TR-C+) SERIES
The TR-C plus series has been developed to facilitate and offer some advantages to the
assembly of the TR-C series pumps. TR-C plus series have a better subjection when
mounting the stub shaft onto the motor using a collar. The stub shaft plus is threaded and
offersa better assembly tothe impeller by means of a key and a nut. It was designed to meet
3A regulations. An ordinary TR-C series pump can be turned into a TR-C plus series with a
Kitplus.
IC PLUS (IC+) SERIES
Series IC plus is a modality of the TR-C series plus and is intended for industrial purposes.
It uses an internal mechanical seal denominated T21, which lodges in an industrial back
plate. Because of this is industrial, it does not meet 3A regulations. No other type of
mechanical seal, like “D”, “DG”, ”E” or “F” seals from the TR-C series, is compatible with the
IC plus series. An ordinary TR-C series pump can be turned into a IC plus series with a Kit
plus, an industrial back plate, and a mechanical seal type T21.
TR-C-M02 7
Before servicing pump, disconnect the
electrical power source, carefully relieve all
pressure and drain all fluids from pump and
connected piping.
WARNING
INSTALLATION

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
EXPLODED ASSEMBLY
8 TR-C-M02

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
9
TR-C-
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PART LIST
External balanced seal type D
11
Backplate “D”
1
11F
Backplate pin
2*
80
Carbon
1
80A
Cup seal “D”
1
80B
O-ring carbon
1
80C
Spring seal “D”
1
80K
Set screw collar seal “D”
2
80L
Drive collar “D”
1
Clamped-in seat seal type DG
11F
*
Backplate pin
2*
11H
Backplate “DG”
1
17J
Gland ring “DG”
1
17K
Bolt/screws gland ring
4**
17M
Lock washer
4**
80N
Seal seat “DG”
1
80P
PTFE gasket
1***
80R
PTFE gasket
1***
Leg brackets
207
Adjustable leg
4
209
Adjustable leg bracket
2
209A
Set screw
4
209B
Bracket mounting screw
4
Kit plus
2P
Impeller plus
1
6P
Stub shaft plus
1
24C
Shaft key plus
1
24D
Nut plus
1
91A
Back gasket plus
1
91B
Front gasket plus
1
92
Drive collar plus
1
92A
Bolt drive collar
1**
* Not necessary in some models
** Quantity may vary with model
*** Not interchangeable
Water cooled balanced double
seal type E
11B
Backplate “E”
1
11F
Backplate pin
2*
17
Follower
1
17A
Machine screw
4**
17B
O-ring
1
17C
Lock washer
4**
80
Carbon
2
80B
O-ring
2
80G
Cup seal “E” 2
80H
Spring seal “E”
1
80J
Drive collar “E”
1
80M
Set screw drive collar “E”
2
83C
Stuffing box “E”
1
83D
Machine screw
4**
83E
O-ring
1
Industrial Kit plus
Kit plus
1
11F
Backplate pin
2*
11P
Industrial backplate
1
95
Seal T21
1
Common components
1
Casing
1
2
Impeller
1
6E
Stub shaft
1
24
Retainer (impeller)
1
92A
Bolt drive collar
1
71
Adapter
1
71A
Adapter pin
2*
71B
Adapter mounting screw
4
75
Clamp assembly complete
1
90
Casing gasket
1
131
Seal guard assembly
1
131A
Set screw
1
132
Water cascade assembly
1
M
Motor
1
PART LIST

Installation, Operation & Maintenance Manual
TR-C Series Centrifugal Pump
10
TR-C-
M02
ASSEMBLY
BEGINNINGTHEASSEMBLY
It is highly recommended that you resort to the diagram on page 6 to verify the assemblies
and subassemblies whose directions will follow.
1. LEG BRACKET ASSEMBLY
Sets of leg-brackets are optional and can be used to vertically adjust the pump. The size of
the brackets (209) and the legs (207) depend upon the NEMA or IEC motor.First, complete
the primary assembly of the legs and the brackets using the hexagonal screws (209A) to
tighten the legs tothe brackets.Next,use the hexagonal screws (209B) totighten the brackets
to the motor(210).You may need to lift the motorto complete this part of the assembly.
2. ADAPTER ASSEMBLY
Place the stainless steel adapter on the motor and tighten using fourhexagonal screws (71B)
with the torque values recommended on Chart 1
The adapter should be accompanied by two adapter pins, which normally come preinstalled.
If not, insert them in the corresponding drilled holes. These pins serve to set the backplate
(11) to the adaptor (71),hooking the backplate onto the adapter pins using the two backplate
pins (11F) located on the backplate. Depending upon the pump model and seal type, some
backplates do not havepins forreasons of design. The adapter comeswith a protectiveguard
(131) which comes attached by a hexagonal screw (131A). It is highly recommended, for
reasons of safety, not to operate the pump if this guard is not placed on the adapter.
3. SPACING OFTHE IMPELLER AND STUB SHAFT
To set the stub shaft onto the motor,it is necessary toplace it at the proper distance. To find
this position it is necessary to provide a spacing of seventy one-thousandths of an inch
(0.070 in.) between the impeller and the backplate, as shown in Figure A.
You can make this adjustment using a caliper or spacing gage.
Depending on the pump model and the seal type,the backplate
requires two pins (11F), which serve to hold the backplatein place
when mounted on the adaptor.
The backplate pins should always be placed pointing in a counter-
clockwisedirection so that the backplate does not slip. When handling
the backplate be careful not to damage the contact surface of the
mechanicalseal or the frontside of the backplate.
An explanation on how to place the stub shaft onto the motorfollowsup
next.Chart 2