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3.3. If larger pipe is required, an eccentric pipe reducer
(with straight side up) must be installed at the pump.
3.4. Installation with pump below source of supply:
3.4.1. Install full flow isolation valve in piping for
inspection and maintenance.
Do not use suction isolation valve to
CAUTION
throttle pump.
3.5. Installation with pump above source of supply:
3.5.1. Avoid air pockets. No part of piping should be
higher than pump suction connection. Slope
piping upward from liquid source.
3.5.2. All joints must be airtight.
3.5.3. Foot valve to be used only if necessary for
priming, or to hold prime on intermittent
service.
3.5.4. Suction strainer open area must be at least
triple the pipe area.
3.6. Size of inlet from liquid source, and minimum
submergence over inlet, must be sufficient to prevent
air entering pump through vortexing. See Figures 1
through 4.
3.7. Use 3 to 4 wraps of Teflon tape to seal threaded con-
nections.
H min.
---------
D
---------
Figure 1
3.0D
min.
H min.
min.
D
D
4.
4.
4. DISCHARGE PIPING
4.
4.
4.
4.
4.
4.
4.
4.
4.
D
D
D
D
D
D
D
D
D
D
D
ISCH
IS
IS
IS
IS
IS
IS
IS
IS
IS
IS
CH
CHAR
C
CH
CH
CH
CH
CH
C H
CH
AR
ARGE
AR
AR
AR
AR
AR
AR
AR
AR
GE
GE
GE
GE
GE
GE
GE
GE
GE
GE
P
P
P
P
P
P
P
P
P
P
P
IP
IPIN
IP
IP
IP
IP
IP
IP
IP
IP
P
ING
IN
IN
IN
IN
IN
IN
IN
IN
IN
4.1. Arrangement must include a check valve located
between a gate valve and the pump. The gate valve
is for regulation of capacity, or for inspection of the
pump or check valve.
4.2. If an increaser is required, place between check valve
and pump.
4.3. Use 3 to 4 wraps of Teflon tape to seal threaded
connections.
5.
5.
5.
5.
5.
5.
5
5.
5 .
5. ROTATION
5 .
5
R
R
R
R
R
R
R
R
R
R
R
OTAT
OT
OT
OT
OT
OT
OT
OT
OT
OT
OT
AT
AT
AT
AT
AT
AT
AT
ATIO
AT
AT
IO
IO
IO
IO
IO
IO
ION
IO
IO
IO
N
N
N
N
N
N
N
N
N
N
5.1. Correct rotation is right-hand (clockwise when
viewed from the motor end). Switch power on and
off quickly. Observe shaft rotation. To change rota-
tion:
5.1.1. Single-phase motor: Non-reversible
4
H min.
D
Figure 2
H
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16
G
G
G
G
G
G
G
G
G
G
5.1.2. Three-phase motor: Interchange any two
power supply leads.
6
6.
6 .
6
6
6.
6.
6 .
6
6.
6 .
6. OPERATION
O
O
O
O
O
O
O
O
O
O
O
PE
PE
PE
PE
PERA
PE
PE
PE
PE
PE
PE
RA
RA
RA
RA
RATI
RA
RA
RA
RA
RA
TI
TI
TI
TION
T
T I
TI
T
TI
TI
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
6.1. Before starting, pump must be primed (free of air
and suction pipe full of liquid) and discharge valve
partially open.
6.2. Make complete check after unit is run under operat-
ing conditions and temperature has stabilized. Check
for expansion of piping.
7.
7.
7. MAINTENANCE
7.
7
7.
7.
7
7 .
7.
7.
7.
M
M
M
M
M
M
M
M
M
M
M
AI
AI
AI
AI
AI
AI
AI
AINT
AI
AI
AI
NT
NT
NT
NT
NT
NT
NT
NT
NT
NTEN
EN
EN
EN
EN
EN
EN
ENAN
EN
EN
EN
AN
AN
AN
AN
AN
AN
ANCE
AN
AN
AN
7.1. Ball bearings are located in and are part of the mo-
tor. They are permanently lubricated. No greasing
required.
Pumped liquid provides lubrication. If
CAUTION
pump is run dry, rotating parts will seize
and mechanical seal will be damaged. Do not operate
at or near zero flow. Energy imparted to the liquid is
converted into heat. Liquid may flash to vapor. Rotating
parts require liquid to prevent scoring or seizing.
8.
8.
8.
8.
8.
8. DISASSEMBLY
8.
8.
8.
8.
8.
8.
D
D
D
D
D
D
D
D
D
D
D
IS
IS
IS
IS
IS
IS
IS
IS
IS
IS
ISAS
AS
AS
AS
AS
AS
AS
AS
ASSE
AS
AS
SE
SE
SE
SE
SE
SE
SE
SE
SEMB
SE
MB
MB
MB
MBLY
MB
MB
MB
MB
MB
MB
LY
LY
LY
LY
LY
LY
LY
LY
LY
LY
Complete disassembly of the unit will be described. Pro-
ceed only as far as required to perform the maintenance
work required.
8.1. Turn off power.
8.2. Drain system and flush if necessary.
8.3. Remove motor hold-down bolts.
8.4. Disassembly of Liquid End
8.4.1. Remove casing bolts (370).
8.4.2. Remove back pull-out assembly from casing
(100).
8.4.3. Remove impeller locknut (304).
Do not insert screwdriver between impel-
CAUTION
ler vanes to prevent rotation of close-
coupled units. Remove cap at opposite end of motor. A
screwdriver slot or a pair of flats will be exposed. Using
them will prevent impeller damage.
8.4.4. Remove impeller (101) by turning counter-
clockwise when looking at the front of the
pump. Protect hand with rag or glove.
Failure to remove the impeller in a
CAUTION
V
counter-clockwise direction may damage
threading on the impeller, shaft or both.
8.4.5. With two pry bars 180 degrees apart and
inserted between the seal housing (184) and
the motor adapter (108), carefully separate
the two parts. The mechanical seal rotary unit
(383) should come off the shaft with the seal
housing.
8.4.6. Push out the mechanical seal stationary seat
from the motor side of the seal housing.
9.
9.
9.
9. REASSEMBLY
9.
9.
9.
9.
9.
9.
9.
9.
R
R
R
R
R
R
R
R
R
R
R
EA
EASS
EA
EA
EA
EA
EA
EA
EA
EA
EA
SS
SSEM
SS
SS
SS
SS
SS
SS
SS
SS
EM
EM
EMBL
EM
EM
EM
EM
EM
EM
EM
BL
BL
BL
BL
BL
BL
BL
BL
BLY
BL
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
9.1. All parts should be cleaned before assembly.
9.2. Refer to parts list to identify required replacement
items. Specify pump index or catalog number when
ordering parts.
CE
CE
CE
CE
CE
CE
CE
CE
CE
CE
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