Flint & Walling SP Self-Priming Sprinkler Pump User Manual

LAWN SPRINKLER, IRRIGATION PUMP

®

MODEL #

95 N. Oak St., Kendallville, IN 46755
260-347-1600 | flintandwalling.com

SAFETY INFORMATION

Please read and understand this entire manual before attempting to assemble, operate or install the
product. If you have any questions regarding the product, please call customer service at

1-800-742-5044, 7:30 a.m.-5:00 p.m., EST, Monday-Friday.

, SP10P1, SP15P1, SP20P1

DANGER

ELECTRICAL SHOCK HAZARD.

Always disconnect power source before performing
any work on or near the motor or its connected load.
If the power disconnect point is out-of-sight, lock it in
the open position and tag it to prevent unexpected
application of power. Failure to do so could result in
fatal electrical shock.

ELECTRICAL SHOCK HAZARD.

Do not handle the pump with wet hands or when
standing in water as fatal electrical shock could occur.
Disconnect main power before handling unit for ANY
REASON!

RISK OF ELECTRIC SHOCK.

These pumps have not been investigated for use in
swimming pool areas.

WARNING

ELECTRICAL SHOCK ALERT.

Follow all local electrical and safety codes, as well
as the National Electrical Code (NEC) and the
Occupational Safety and Health Act (OSHA).

ELECTRICAL SHOCK ALERT.

Unit must be securely and adequately electrically
grounded. This can be accomplished by wiring the unit
to a ground metal-clad raceway system or by using a
separate ground wire connected to the bare metal of
the motor frame or other suitable means.

CHEMICAL ALERT.

This product contains chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm.

CAUTION
ELECTRICAL SHOCK MAY OCCUR

Protect the power cable from coming in contact with
sharp objects.

HOT SURFACE MAY CAUSE BURNS

Be careful when touching the exterior of an operating
motor - It may be hot enough to be painful or cause
injury.

PRODUCT DAMAGE MAY RESULT

Make certain that the power source conforms to the
requirements of your equipment.

ELECTRICAL SHOCK ALERT.

Replace damaged or worn wiring cord immediately.

ELECTRICAL SHOCK ALERT.

Do not kink power cable and never allow the cable
to come in contact with oil, grease, hot surfaces, or
chemicals.

023264 E

PREPARATION

Before beginning installation of product, make
sure all parts are present. Compare parts
with package contents drawing. If any part is
missing or damaged, do not attempt to assemble

Tools Required for Assembly:
Hacksaw
Pipe Wrenches (2)
Wire Strippers
Needle-Nose Pliers
Phillips Screwdriver
Wire Cutters
Adjustable Wrench

Parts Required For Assembly:

2” foot valve or 2” suction strainer with check
valve

2 in. Sched 40 PVC pipe
1-1/2 in. Sched 40 PVC pipe
2 in. MPT x 2 in. slip adaptor
1-1/2 in. MPT x 1-1/2 in. slip adaptor
1-1/2 in. pipe tee
1-1/2 in. slip x 1-1/4 in. FPT reducer bushing,

1-1/4 in. MPT plug
2 in. 90º pipe elbow
1-1/2 in. 90º pipe elbow
thread tape
1/4 in. electric wire strain relief

the product. Contact customer service for
replacement parts.

Estimated Installation Time: 2 hours.

2-step PVC glue system (primer and sealer)
Thread paste.

Optional Parts For Assembly (not included):

1. Priming Plug with Pressure Gauge: Used

instead of a priming plug alone. Helps
determine if the pump is primed, indicates if
the pump is operating properly and what kind
of pressure is in the system when operating.

a. (1) 1-1/4 in. MPT x 1/2 in. FPT reducer

bushing

b. (1) 1/2 in. MPT x 1/4 in. FPT reducer

bushing

c. (1) 100 PSI pressure gauge

2. Unions: Used for easy removal of the pump
from the sprinkler system.

a. (2) 2 in. union
b. (1) 1-1/2 in. union

3. (1) 1-1/2 in. Ball Valve: Prevents back ow

of water from the sprinkler system when the
pump is removed from the system.

4. 1-1/2 in. Couplers: Quantity determined by
the total length of pipe used.

5. 2 in. Couplers: Quantity determined by the
total length of pipe used.

Component Specications

Pump housing Heavy-duty, cast-iron

Diffuser Thermoplastic

Impeller Thermoplastic

Rotary seal Carbon/silicon carbide

Mounting ring Heavy-duty, cast-iron

Square cut ring Buna-N

Base Rigid steel

Motor Dual voltage, double-ball

bearing

© Copyright 2014 Flint & Walling. All rights reserved.

HP Phase Volts

1

1

1
1

1-1/2

1
1

2

1

2

MOTOR DATA CHART

Code

Letter

Amps

115

H

230
115

18.00

G

230
115

21.00

G

230

10.50

Max

17.6

8.8

9.00

Locked

Rotor
Amps

62.0

31.0

72.0

36.0

108.0

54.0

GENERAL PUMP INFORMATION

Valve

Typical Pump Setup

Typical setups for lawn sprinkler pump systems
include ground water wells (Fig. 1) or surface
water, such as lakes, ponds or streams. (Fig. 3)

Location

For best performance, the pump must be located
as close to the water source as possible and
protected from the elements.

Ventilation

Ventilation and drainage must be provided to
prevent damage to the motor from heat and
moisture.

Freezing

The pump and all piping must be protected from
freezing. If freezing weather is forecast, drain
pump or remove completely from the sprinkler
system.

Water Supply

The water source must be able to supply enough
water to satisfy the capacity of the pump and
water needs. See performance chart.

WARNING: NEVER run pump against a
closed discharge. Doing so can boil water inside
pump, causing hazardous pressure in unit, risk
of explosion and possibly scalding persons
handling pump. (Fig. 2)

Vertical
Lift

25 ft.

max

60 ft. max.

Inlet pipe to water

Pipe
Support

Inlet
Pipe

Water Level

Vertical
Lift

25 ft.

max

Fig 4

1-1/2 in. Discharge

Outlet
Pipe

Discharge to
Sprinkler System

Fig 3

60 ft. max.

Inlet pipe to water

Pipe
Support

Water Level

Foot

Discharge to
Sprinkler System

2 in.
Suction

Inlet
Pipe

Fig 2Fig 1

Outlet Pipe

Motor Cover

Vertical Lift

Vertical lift is the vertical distance from the lowest
level of the water to the pump intake. The pump
will move water as long as the pump is within 25
vertical feet of the water source.

Horizontal Distance

The horizontal distance is the horizontal
measurement between the pump inlet and the
water source. This distance may affect the ability
of the pump to operate. If it is over 150 feet, call
customer service at 1-866-994-4148.

Pipe And Fittings

Use galvanized steel or NSF PW Schedule 40
PVC pipe and fittings. This material is designed
for water pressure and will seal against air
and water under pressure. Do Not Use: DWV
fittings, as these are designed for drains without
pressure and will not seal properly.

CAUTION: The entire system must be
air and water tight for efficient operation and to
maintain prime.

Wire Size:

The wire size is determined by the distance from
the breaker box to the pump motor, and the
horsepower rating of the motor. See the wire chart
for proper wire size.

© Copyright 2014 Flint & Walling. All rights reserved.

3

PUMP PREPARATION FOR WELL AND SURFACE WATER

CAUTION: Dry-t entire assembly to

ensure proper t before gluing or taping parts.

CAUTION: Follow all proper gluing

procedures as specied by the glue

manufacturer. Always glue in a vertical direction
whenever possible to prevent glue from

dripping inside pipe or ttings

CAUTION: Use thread tape and a thread
paste compound on all male threads except for
the unions. Tighten securely with a wrench and
add another 1/4 turn to ensure proper seal.

1. Thread 1-1/2 in. MPT x 1-1/2 in. slip adaptor

into the outlet port located at the top of the
pump.

2. Glue a 6 in. piece of 1-1/2 in. pipe into the

adaptor.

3. Glue a 1-1/2 in. tee to the pipe.

4. Glue a 1-1/2 in. slip x 1-1/4 in. adaptor to

the top opening of the 1-1/2 in. tee.

5. Thread in a 1-1/4 in. priming plug or optional

priming plug with pressure gauge.

NOTE: Hand tighten only, as this will be
removed for priming.

6. Glue another 6 in. section of 1-1/2 in. pipe

into the opening in the 1-1/2 in. tee.

7. Glue the male thread side of a 1-1/2 in.

union to the pipe.

8. Thread 2 in. MPT x 2 in. slip adaptor into

the inlet port located on the front of the
pump body.

9. Glue an 8 in. section of 2 in. pipe into the 2

in. adaptor.

10. Glue one side of a 2 in. union to the pipe.

Priming Plug
with Pressure
Gauge

1-1/4 in.
Priming
Plug

Fig 2Fig 1

Fig 4Fig 3

Fig 6Fig 5

Fig 8Fig 7

© Copyright 2014 Flint & Walling. All rights reserved.

Fig 10Fig 9

4

PUMP PREPARATION FOR WELL AND SURFACE WATER

For Well Installations

11. Thread a 2 in. MPT x 2 in. slip adaptor into
the foot valve.

12. Glue 2 in. pipe into the adaptor. Glue enough
sections of pipe together using 2 in. couplers
in order for the foot valve to be completely
submerged in water. Be sure inlet pipe
will remain fully submerged at the lowest
expected level of the water source.

13. Install well seal in order to hold the inlet pipe
in position in the well.

14. Glue a 90º elbow when the inlet pipe is in line
with the inlet port of the pump.

For Surface Water Installations

For surface water installations, follow steps 11
and 12 above and then:

15. Glue a 45º elbow when the inlet pipe is in line
with the inlet port of the pump.

16. Support inlet pipe with pipe support.

Well Seal

Inlet Pipe

Water Level

IL1261

Discharge to
Sprinkler System

Elbow

Water Level

Fig 12Fig 11

Fig 14Fig 13

Fig 16Fig 15

Discharge to
Sprinkler System

Water
Level

Elbow

Inlet
Pipe

Discharge to
Sprinkler System

Outlet Pipe

Pipe
support

Water level

Slope pipe upward
from water source

Use a concrete block or
other solid material to
support suction pipe

© Copyright 2014 Flint & Walling. All rights reserved.

5

PUMP INSTALLATION FOR WELL AND SURFACE WATER

Priming Plug

1. Mount pump on a solid foundation as close to
the water source as possible.

CAUTION: Support the 2 in. inlet
pipe from the well or lake to the inlet port
to prevent sagging. Sagging will create air
pockets within the pipe that will prevent the
pump from priming and operating correctly.

2. Glue female 2 in. union to the end of inlet
pipe leading from the water source.

3. Connect the 2 in. union together to complete
the inlet line to the pump.

4. Glue a 6 in. piece of 1-1/2 in. pipe to the
female portion of the 1-1/2 in. union.

5. Glue 1-1/2 in. ball valve to the other end of
the 6 in. piece of pipe.

6. Connect the 1-1/2 in. outlet pipe to the
sprinkler system by gluing in additional
sections of pipe as needed.

7. Connect union to ensure proper t. Do not
tighten until after priming.

CAUTION: Do not glue union together.

Well Seal

Water
Level

100 PSI
Pressure
Gauge

Union

Inlet
Pipe

Well

Water Level

2 in.
Union

Inlet
Pipe

Ball

Union

Valve

Outlet
Pipe

Discharge to
Sprinkler System

Outlet Pipe

Ball Valve

Water
Level

Fig 2Fig 1

2 in.
Female
Union

Fig 4Fig 3

Fig 6Fig 5

Inlet
Pipe

1-1/2 in.
Union

Outlet Pipe

Outlet Pipe

Fig 7

Outlet Pipe

Inlet
Pipe

Discharge to
Sprinkler System

Inlet
Pipe

Discharge to
Sprinkler System

© Copyright 2014 Flint & Walling. All rights reserved.

6

PUMP ELECTRICAL INSTRUCTIONS

WARNING
ELECTRICAL SHOCK ALERT.

Under-size wiring can cause motor failure and
even fire. Use proper wire size specified in the
wire size chart.

ELECTRICAL SHOCK ALERT.

Replace damaged or worn wiring cord immediately.

ELECTRICAL SHOCK ALERT.

Do not kink power cable and never allow the cable
to come in contact with oil, grease, hot surfaces, or
chemicals.

ELECTRICAL SHOCK ALERT.

The pump must be properly grounded using

(*) Not economical to run in 115V, use 230V

the proper wire cable with ground.

ELECTRICAL SHOCK ALERT.

Always disconnect pump from electricity
before performing any work on the motor.

WARNING
ELECTRICAL SHOCK MAY OCCUR

All wiring should be performed by a qualied

electrician in accordance with the National Electric
Code and local electric codes.

ELECTRICAL SHOCK MAY OCCUR

Connect the pump to a separate electrical circuit
with a dedicated circuit breaker. Reference the wire
size chart below for proper fuse size.

ELECTRICAL SHOCK MAY OCCUR

Protect the power cable from coming in contact with
sharp objects.

PRODUCT DAMAGE MAY RESULT

Make certain that the power source matches
the pump requirements. This pump has a dual
voltage motor and can run on 115 V or 230 V.
This pump is wired from the factory to run on
230 volts; refer to Electrical Instructions if you
want to change the pump to run on 115 volts.

Distance From
Motor To Fuse

Box, Meter or

Electrical Outlet

0-50 Ft.

50-100 Ft.
100-150 Ft.
150-200 Ft.
200-300 Ft.

Fuse Size (Amps)

WIRE SIZE CHART

Minimum Copper Wire Size Chart (Gauge)

Single Phase Motors

1 HP 1-1/2 HP 2 HP

115
Volt

12
10

8

30

230
Volt

*
*

14
14
12
12
10
15

115
Volt

12
10

8

*
*

30

230
Volt

14
14
12
12
10
20

115
Volt

12
10

8
*
*

30

230
Volt

14
14
12
10
10
20

© Copyright 2014 Flint & Walling. All rights reserved.

7

PUMP ELECTRICAL CONNECTIONS

1. Remove rear motor cover on pump by
unscrewing the two screws.

2. Thread electric wire strain relief into wire
opening on the side of the motor of pump.

3. Insert wire through electric wire strain relief
and tighten screws.

4. Connect white power lead to L1 and black
power lead to L2.

5. Connect green ground wire to green
grounding screw. Re-install rear motor cover
to pump.

To change from 230 V to 115 V

6. The motor of pump is dual voltage and
can run on either 115 volts or 230 volts. In
general, 230 volts is more economical to run,
and requires a smaller wire size. The pump is
pre-set in the factory to run at 230 volts.

7. For 115 volts service, change the following
wires on the terminal board:
a. Using a pair of needle nose pliers, pull the

gray wire with the female flag connector
from the “B” terminal spade post. Place it
to the left on the “A” terminal space post.

b. Pull the red wire with the female flag

connector from the “B” terminal. Place it to
the right on the L2 terminal space post.

c. Reinstall the rear motor cover.

Fig 2Fig 1

L1

A B

L2

Fig 4Fig 3

L1

A B

L2

L1

A B

L2

Fig 6Fig 5

L1

A B

L2

GR AY

L2L1

RED

A B

© Copyright 2014 Flint & Walling. All rights reserved.

Fig 7bFig 7a

A B

GR AY

L2L1

RED

A B

GR AY

L2L1

RED

Fig 7c

8

PUMP PRIMING & STARTUP

CAUTION: All pumps must be primed by

lling the pump cavity with water before they
are rst operated. This may take several gallons
of water, as the entire inlet line will be lled in

addition to the pump cavity. The longer the inlet
line, the more water is required for priming.

1. Disconnect the 1-1/2 in. outlet union and
separate the pipe.

2. Remove the air relief plug on top of pump and
the 1-1/4 in. priming plug with pressure gauge
or plug. Refer to Pump Preparation Step 5.

3. Slowly ll pump cavity until water comes out
of air relief hole on top of the pump.

4. Replace air relief plug and continue adding
water to pump cavity until water comes out of
the open outlet pipe at the open union.

5. Wait 10 minutes to see if water level drops
below the pipe tee. If level drops, check foot
valve. If level stays constant, replace the
priming plug.

6. Reconnect 1-1/2 in. union on outlet pipe.
Open the ball valve (turn handle to line up
with pipe), and then turn on breaker to start
pump.

IMPORTANT: If the pump fails to prime

within ve minutes:

7. Turn the power off at the break box. Check
all pipe connections for leaks, making sure
all connections are water and air tight.
Check the inlet pipe for any sagging, making
sure the inlet pipe is in a straight line to the
pump. Watch for leaks or a milky color in
the discharged water, which indicated an air
leak. Re-prime if necessary, following steps
1 through 6 above. Reset breaker at the
breaker box.

Priming Plug
with Pressure
Gauge

Air Relief Plug

Inlet
Pipe

Air Relief
Hole

Water
Level

Outlet Pipe

Priming Plug with
Pressure Gauge

Pipe Tee

Air Relief Plug

Air Relief
Plug

Fig 2Fig 1

Priming Plug with
Pressure Gauge

Fig 4Fig 3

Outlet Pipe

Pipe Tee

Fig 6Fig 5

Closed

Open

Open Union

IMPORTANT: If the pump hums instead of
pumping or turns off repeatedly, shut pump off
immediately. Check voltage. Pump is wired to
run on 230 volts. If the pump cuts out or stops,
you may be attempting to connect to 115 volts.
See PUMP ELECTRICAL INSTRUCTIONS to
see how to correctly change the motor voltage to
115 volts.

© Copyright 2014 Flint & Walling. All rights reserved.

9

MAINTENANCE

LUBRICATION

The pump and motor requires no lubrication. The
ball bearings of the motor have been greased at
the factory. Under normal operating conditions
they should require no further greasing.

ROTARY SEAL ASSEMBLY REPLACEMENT

CAUTION: Make certain that the power

supply is disconnected before attempting to
service the unit. The rotary seal assembly must be
handled carefully to avoid damaging the precision
lapped faces of the sealing components.

See Parts List For Reference Letters

1. Disengage pump body G from motor assembly
by removing bolts H.

2. Remove diffuser D.

3. Unthread impeller C from motor shaft and
remove spring.

NOTE: To remove impeller, place screwdriver
within slot in shaft end and hold shaft firmly.
Rotate impeller counterclockwise to remove from
shaft.

4. Use a screwdriver to remove the rotary seal B.
Pry the ceramic seal and rubber gasket from
the recess of the mounting bracket. (Fig 1).

Fig 1

Remove
Mechanical
Seal

Fig 2 - Rotary Seal Assembly

Stainless steel spring

Rotary seal half
Ceramic seal and rubber gasket

Fig 3

Press ceramic
and gasket into
housing

CAUTION: Be careful not to damage the

motor shaft or recess surface.

5. Clean the recess and motor shaft thoroughly.

6. Install the new rotary seal assembly (Fig 2):

NOTE: To make installation easier, apply a drop
of liquid soap to the outside diameter of the rubber
gasket. Make certain that the ceramic seal is kept
clean and free of dirt and/or oil.

a. Insert the ceramic seal and the rubber

gasket into the recess. (Fig 3).

b. Slip the remaining parts of the rotary seal

assembly onto the motor shaft.

7. Replace the spring, impeller, and diffuser
removed in steps 2 and 3.

8. Reassemble the pump body to the motor and
mounting bracket.

Press rotary
seal onto shaft
against ceramic

© Copyright 2014 Flint & Walling. All rights reserved.

10

TROUBLESHOOTING

Problem Possible Cause Corrective Action

A. Little or no

discharge

1. Casing not initially filled with water 1. Fill pump casing

2. Vertical lift too high, or too long 2. Move pump closer to water source

3. Hole or air leak in inlet line 3. Repair or replace inlet line. Use
thread tape and pipe sealing
compound

4. Foot valve too small 4. Match foot valve to piping or install
one size larger foot valve.

5. Foot valve or inlet line not

5. Submerge foot valve lower in water

submerged deep enough in water

6. Motor wired incorrectly 6. Check wiring diagram

7. Inlet or outlet line valves closed 7. Open valves

B. Pump will not

deliver water
or develop
pressure

1. No priming water in casing 1. Fill pump casing

2. Leak in inlet line 2. Repair or replace

3. Outlet line is closed and priming air

3. Open ball valve

has nowhere to go

4. Inlet line (or valve) is closed 4. Open line or valve

5. Foot valve is leaking 5. Replace foot valve

6. Inlet screen clogged 6. Clean or replace inlet screen

C. Loss of

suction

1. Hole or air leak in inlet line 1. Repair or replace inlet line. Use
thread tape and pipe sealing
compound

2. Vertical lift too high 2. Reduce vertical lift, install foot valve
and prime

3. Insufficient inlet pressure or suction

head

3. Increase inlet pressure by adding
more water to tank or increasing back
pressure

4. Clogged foot valve or strainer 4. Inspect foot valve and/or strainer for
debris, and remove

D. Pump

vibrates and/
or makes
excessive

1. Mounting plate or foundation not

1. Reinforce plate or foundation

rigid enough

2. Foreign material in pump 2. Disassemble pump and clean

3. Impeller damaged 3. Replace impeller

noise

E. Pump will not

start or run

1. Motor wired incorrectly 1. Check wiring diagram

2. Blown fuse or open circuit breaker 2. Replace fuse or close circuit breaker

3. Loose or broken wiring 3. Tighten connections, replace broken
wiring

4. Stone or foreign object lodged in

impeller

4. Disassemble pump and remove
foreign object

5. Motor overheated 5. Allow unit to cool, restart after cooling

F. Pump loses

prime.

1. Clogged foot valve or strainer 1. Inspect foot valve and/or strainer for
debris, and remove.

2. Worn or broken foot valve 2. Inspect and replace

3. Hole or air leak in inlet line 3. Repair or replace inlet line. Use
thread tape and pipe sealing
compound

© Copyright 2014 Flint & Walling. All rights reserved.

11

REPLACEMENT PARTS LIST

To order parts, call 1-800-742-5044

Motor
Assembly

G HE DCBA F

HP 1 1-1/2 2

ITEM

SINGLE PHASE MODEL NO. SP10P1 SP15P1 SP20P1

DESCRIPTION PART NO.

A
B

C
D
E
F

Ring, Square Cut
Seal, Rotary and Ceramic (with

Spring)

Impeller
Diffuser
Diffuser Insert
Rubber Diffuser

G Pump Body 023115 1 1 1

H*

Hex Hd. Cap Screws 3/8 in. x
3/4 in.

(*) Standard hardware item
NOTE: Motor assembly not available as a replacement part.

PRODUCT SPECIFICATIONS

Model # HP

SP10P1 1

SP15P1 1-1/2

SP20P1 2

Max. Case Pressure: 100 PSI

Suction Lift

(Ft.)

5
10
15
20
25

5 66 63 59 54 48 40 8
10 64 61 57 52 45 28
15 63 60 55 49 41 15
20 62 58 53 46 32
25 60 56 50 42 21

5 70 68 65 62 56 46 24
10 69 66 63 60 52 39 6
15 68 65 62 57 47 27
20 67 64 60 53 41 13
25 65 62 58 48 30

132429
131100

023211
132425
134240
132428

* 4 4 4

Discharge Pressure (PSI)

15 20 25 30 35 40 45

Capacity - U.S. Gallons per Minute
65 61 53 44 32
64 58 49 39 24
62 55 45 34
59 51 41 28
56 46 36 2

1
1

1
1
1

Shut Off

Pressure

@ 0 Lift (PSI)

1
1

134138

1
1
1

Suction

134138

Pipe

1
1

1
1
1

Discharge

Pipe

39 2 in. 1-1/2 in.

45 2 in. 1-1/2 in.

48 2 in. 1-1/2 in.

© Copyright 2014 Flint & Walling. All rights reserved.

12