Q-Pumps QIS Series User manual

02-11
QIS SERIES
OPERATION AND MAINTENANCE MANUAL
INTERNAL BALANCED
MECANICHAL SEAL
CENTRIFUGAL PUMP
en.q-pumps.com
[e-mail]

2
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
Thank you for purchasing a Q-Pumps product.
This manual contains installation, operation, cleaning and maintenance instructions for the QIS
Series.
It also includes a part list as well as a troubleshooting chart to assist in determining pump
malfunction and practical advices for the maintenance and operation of the equipment.
ABOUT THIS MANUAL ......................................................................................................................................................... 3
Q-Pumps S.A. de C.V. Warranty.................................................................................................................................. 3
SAFETY ........................................................................................................................................................................................ 4
IMPORTANT SAFETY INFORMATION ...................................................................................................................... 4
INSTALATION ........................................................................................................................................................................... 5
DESCRIPTION....................................................................................................................................................................... 5
INSTALLATION GUIDELINES........................................................................................................................................ 5
ASSEMBLY PRELIMINARIES ......................................................................................................................................... 6
QIS GENERAL DIAGRAM...................................................................................................................................................... 7
QIS PART LIST .......................................................................................................................................................................... 8
ASSEMBLY ................................................................................................................................................................................. 9
START THE ASSEMBLY................................................................................................................................................... 9
1. LEG BRACKET ASSEMBLIES........................................................................................................................................................9
2. ASSEMBLY THE ADAPTER TO THE MOTOR...............................................................................................................10
3. SPACING OF THE IMPELLER AND STUB SHAFT .....................................................................................................11
4. ASSEMBLING THE MECHANICAL SEAL..........................................................................................................................14
5. ASSEMBLING THE CASING........................................................................................................................................................17
QUICK GUIDE FOR SOLVING COMMON PROBLEMS ..................................................................................... 19
CONTENTS

3
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
ABOUT THIS MANUAL
To ensure the best performance of your pump, please read this manual before starting it. You will find useful
information and instructions for the assembly and disassembly procedures required for the necessary pump
maintenance.
For any questions related to the operation, maintenance or installation, please contact your local distributor
or directly to Q-Pumps:
Q-Pumps S.A. de C.V.
Acceso A # 103 Fracc. Industrial Jurica
Querétaro, Qro. Mexico. 76130
Call: [phone]
For Technical support contact:
[e-mail]
For Sales support contact:
[e-mail]
The information in this manual might change without notice, we recommend visiting our website for any
updates.
Q-Pumps S.A. de C.V. Warranty
Q-Pumps guarantees that all manufactured and sold products are free from defects in materials and
manufacture for a period of one (1) year from the date of shipment. The warranty does not apply to products
which require repair or replacement due to what is considered normal wear. Conditions caused by normal
wear include (but are not limited to standard rotors wear) casing, mechanical seals, gears and bearings wear.
Accidents, operating errors or improper maintenance are not covered by the warranty. Q-Pumps assumes
no liability for incidental, accidental or consequential damages. The purchaser by acceptance of delivery
assumes all liability for the consequences of use or misuse by it, its employees or third parties. Unless they
are approved in advance, Q-Pumps does not assume any costs related to parts and / or service.
Q-Pumps disclaims any responsibility for modifications or conversions to the pump and the system. For
security reasons and functionality use original parts only. The use of other parts voids the warranty and
excludes liability for any consequences.
The pump is designed only for pumping fluids under established characteristics in the selection sheet. Any
other use besides the intended one without the prior written consent of the manufacturer’s application, will
result in disclaim of any responsibility from Q-Pumps.
If the pump is stored temporarily or indefinitely, avoid weather exposure and protect the connection ports
with plastic plugs supplied with your pump. Turn the pump shaft by hand every two months to change the
rotating position of the bearings.
ABOUT THIS MANUAL

4
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
SAFETY
IMPORTANT SAFETY INFORMATION
DO NOT attempt to modify any Q-Pumps product, the QIS series centrifugal pumps have been
designed to be safe and reliable, to do so could create unsafe conditions and void all warranties.
DO NOT place any Q-Pumps 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 could result in personal injury or machine damage.
The following DANGER, WARNING, and CAUTION signs and their meanings are used within these
instructions to avoid serious injury and/or possible damage to equipment.
Safety labels are placed on every pump. DO NOT remove any labeling on any Q-Pumps product.
Replace any label that is missing.
DANGER
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.
WARNING
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.
CAUTION
Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious
injury.
SAFETY
C
O
D
E
1
3
6
5
3
0
0
0
2
(
G
u
a
r
d
w
a
r
n
i
n
g
)
W
A
R
N
I
N
G
R
O
T
A
T
I
N
G
S
H
A
F
T
D
O
N
O
T
O
P
E
R
A
T
E
W
I
T
H
O
U
T
G
U
A
R
D
I
N
P
L
A
C
E
C
O
D
E
1
3
6
5
3
0
0
0
1
(
R
o
t
a
t
i
n
g
d
i
r
e
c
t
i
o
n
c
c
w
)

5
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
INSTALATION
DESCRIPTION
Before servicing pump, disconnect electrical power source.
The QIS 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 the three methods.
The casing is fixed to the adapter with screws allowing to position 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 having 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.
WARNING
Before servicing pump, disconnect electrical
power source, carefully relieve all pressure
and drain all fluids from pump and connected
piping.
INSTALLATION

6
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
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.
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 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.
WARNING
Before servicing pump, disconnect electrical
power source, carefully relieve all pressure
and drain all fluids from pump and connected
piping.
INSTA
LLATION

7
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
QIS GENERAL DIAGRAM
GENERAL DIAGRAM
1
2
3 4
5
6
7
9
8
10
12
13
14
18A
18B
17
21
22
19
20
16
209
207
209A
209B
15
6H
6A
6G
6E
6I
6B
6J
6C
6K
6D
6L
6F
6H
6A
6G
6E
6I
6B
6J
6C
6K
Double mechanical seal
Single mechanical seal

8
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
QIS PART LIST
ITEM DESCRIPTION QTY ITEM DESCRIPTION QTY
1 Casing 1 10 Stubsahft 1
2 Casing o-ring 1 12 Stubshaft key 1
3 Impeller nut plus 1 13 Stubshaft collar 1
4 Impeller nut gasket 1 14 Collar bolt 1 OR 2
5 Impeller QIS 1 15 Adapter 1
6 Mechanical seal 1 16 Adapter guard 1
6A Rotary holder 1 17 Adapter guard bolt 1
6B Internal rotary face 1 18A
Adapter hexagonal
screw 4
6C Static face 1 18B Adapter hexagonal nut 4
6D External rotary face 1 19 Washer 4
6E Internal rotary spring 1 20 Casing hexagonal screw 4
6F External rotary spring 1 21 Washer 4
6G O-ring rotary holder 1 22
Backplate hexagonal
screw 4
6H O-ring rotary holder 1 207 Leg 4
6I O-ring internal rotary face 1 209 Leg bracket 2
6J O-ring static face front 1 209A Leg hexagonal screw 4
6K O-ring static face back 1 209B
Leg bracket hexagonal
screw 4
6L
O-ring external rotary
face 1 209B
Leg bracket hexagonal
screw 4
7 Backplate 1
8 Plug 2
9 Flush double seal 2
PART LIST

9
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
ASSEMBLY
START THE ASSEMBLY
It is highly recommended that you use the general diagram to identify the components and thus
be able to carry out the assemblies and sub-assemblies that will be explained below.
1. LEG BRACKET ASSEMBLIES
The leg bracket assemblies are optional. They allow to level the pumps adjusting the legs
vertically. The size of the brackets (209) and legs (207) depend on the NEMA or IEC motor frame.
First make the sub-assemblies of the legs to the brackets with the hexagonal screws (209A). Next,
with the hexagonal screws (209B) fix the brackets to the motor base; You may need to lift the
motor to make this assembly. Figure A.
FigureA
209B
209A
M
209
207
ASSEMBLY

10
QIS SERIES-M03
OPERATION AND MAINTENANCE MANUAL
QIS SERIES Centrifugal Pump
2. ASSEMBLY THE ADAPTER TO THE MOTOR
Place the stainless adapter (15) on the motor flange and fix it with hexagonal screws and tighten
to the torque values recommended in chart 1.
Table 1 – Torque values for tightening the adapter screws
Torque ft-lb Models NEMA Models IEC
55 Frame 18 to 25 Frame 110 to 160
70
Frame
28
Frame
180
110 Frame 32 to 36 Frame 200 to 225
For NEMA motors “C” face use the four hexagonal screws (18A). Figure B.
Figure B
For IEC motors “FF” face (B5 flange) use the four hexagonal screws (18A) and the hexagonal nuts
(18B).
Figure C.
18A
15
18A
15
18B
ASSEMBLY