145411 3 Hydromatic Sp50 Curves 16_6260 SP50.Specs User Manual

547931 3 Myers Sp50 Series Curves 547931_3_Myers SP50 Series Curves

User Manual: Pump 145411 3 Hydromatic Sp50 Curves

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Performance
Data
RPM: 1750

SP50
Solids: 11⁄2"

Discharge: 2"

30
TOTAL HEAD IN FEET

HEAD-METERS

Wholesale Products Page: 6260-1
Section: Performance Data
Dated: January 2001

SP50 & SP50AB

SP40

0
0
Capacity-U.S. G.P.M. 0
Liters/Second 0

40
2

60
4

100
6

120

140
8

The curves reflect maximum performance characteristics without exceeding full load (Nameplate) horsepower. All pumps have
a service factor of 1.2. Operation is recommended in the bounded area with operational point within the curve limit. Performance
curves are based on actual tests with clear water at 70° F. and 1280 feet site elevation.

Conditions of Service:

GPM:______ TDH:______

Dimensional
Data

Wholesale Products Page: 6260-2
Section: Dimensional Data
Dated: January 2001

SP50

4-3/8"
(111)

8-1/8"
5-7/8" (206)
(149)
2" NPT
DISCHARGE

4-5/8"
(117)

4"
(101)
7-5/16"
(185)

18" (457) MINIMUM SUMP DIA.

12-7/16"
(315)

14-1/4"
(361)
PUMP
ON
12-13/16"
DISCHARGE (325)
HEIGHT
5-3/4" 5-7/8"
(146) (149)
PUMP
OFF

All dimensions in inches. Metric for international use. Component dimensions may vary ± 1/8 inch. Dimensional data not
for construction purpose unless certified. Dimensions and weights are approximate. On/Off level adjustable.
We reserve the right to make revisions to our product (s) and the product (s) specifications without notice.

Electrical
Data

Wholesale Products Page: 6260-3
Section: Electrical Data
Dated: January 2001

SP50

MODEL: SP50, Sewage Ejector
R.P.M.

1750

MOTOR TYPE

OIL FILLED WITH AUTOMATIC RESET THERMAL OVERLOAD

GENERAL INSULATION CLASS

MOTOR PROTECTION

AUTOMATIC RESET / THERMAL OVERLOAD

VOLTAGE

PHASE

NEC CODE

SERVICE FACTOR

FULL LOAD AMPS

1/2

115

1/2

200

6.8

1/2

230

1/2

200

4.1

1/2

230

3.5

1/2

460

1.8

1/2

575

1.4

Technical
Data

SP50

Wholesale Products Page: 6260-4
Section: Technical Data
Dated: January 2001

MODEL: SP50, Sewage Ejector
Physical Data:
DISCHARGE SIZE

2" NPT(STANDARD) 3" NPT (OPTIONAL)

SOLIDS SIZE

11⁄2"

IMPELLER TYPE

NON CLOG

CABLE LENGTH

10' STANDARD
20' OPTIONAL

PAINT

PAINTED AFTER ASSEMBLY, DARK GREEN, WATER REDUCIBLE
ENAMEL, ONE COAT, AIR DRIED.

Temperature:
MAXIMUM LIQUID

140°F

MAXIMUM STATOR
OIL FLASH POINT

Technical Data:

MATERIALS OF
CONSTRUCTION

POWER CORD TYPE

STW-A

MOTOR HOUSING

CAST IRON

CASING

CAST IRON

IMPELLER

CAST IRON

MOTOR SHAFT

NICKEL PLATED STEEL

HARDWARE

STAINLESS STEEL

“O” RINGS

BUNA - N

MECHANICAL SEALS
Standard:

CARBON / CERAMIC

UPPER BEARING

SINGLE ROW-BALL

LOWER BEARING

SINGLE ROW-BALL

Specification
Data

SP50

Wholesale Products Page: 6260-5
Section: Specification Data
Dated: January 2001

SUBMERSIBLE SEWAGE EJECTOR MODEL:
SP50
1.01

GENERAL
Contractor shall furnish all labor, materials, equipment and incidentals required to provide (Qty.)
submersible centrifugal sewage ejector pump(s) as specified herein. The pump model covered in
this specification is the SP50. The pump furnished for this application shall be
MODEL _________ as manufactured by Hydromatic Pumps.

2.01

DESIGN CONDITIONS
Each pump shall be rated _____ H.P., _____ volts, _____ phase, _____ hertz and operate at ______
RPM.

3.01

OPERATING CONDITIONS
The pump shall deliver _____ U.S. GPM/LPS at _____ feet/meters TDH, and handle a _____ inch solid.
The curve submitted for approval shall state, in addition to head and capacity performance, solid
handling capability, amp rating, and design impeller diameter.

4.01

CONSTRUCTION
Each pump shall be of the sealed submersible type, incorporating features normally found in pumps
furnished for the residential market.
These features include:
1. The pump volute, motor, and seal housing shall be high quality gray cast iron, ASTM A-48, Class 30.
2. The pump inlet shall be open and clear, without screening to provide access for sewage and
solids.
3. All external mating parts shall be machined and Buna N, O-Ring sealed.
4. All fasteners exposed to the pumped liquid shall be 300 series stainless steel.
5. All power cords shall be water resistant UL or CSA approved, with double insulation, and sized as
a function of Amp. draw.

5.01

MOTOR AND SHAFT
The stator, rotor and bearings shall be mounted in a sealed submersible type housing. Single phase
motors shall be split phase or capacitor start with centrifugal switch. Three phase motors shall be
Polyphase. Full Load and Locked Rotor Amps as well as Start and Run winding resistance shall be
tabulated for each pump.

Specification
Data

SP50

Wholesale Products Page: 6260-6
Section: Specification Data
Dated: January 2001

6.01

BEARINGS, SHAFT AND MECHANICAL SEAL
An upper radial and lower thrust bearing shall be required. These shall be heavy duty single row ball
bearings which are permanently and continuously lubricated and cooled by the dielectric oil which fills the
motor housing. The motor shaft shall be nickel plated steel and sealed from the pumped liquid with a
carbon ceramic mechanical seal.

7.01

IMPELLER
The Impeller shall be high capacity, two vane, non-clog design with pump out vanes on the back side.
These vanes wash out grit and stringy material that will damage the shaft and mechanical seal.

8.01

AUTOMATIC CONTROL
All single phase pumps should be capable of automatic operation.

9.01

PRESSURE SWITCH
The Single Phase SP50 pump is furnished with a pressure diaphragm switch that features a piggy-back
plug that allows the pump to be operated manually without removal from the sump.

10.01

PAINTING
All cast iron parts shall be painted before assembly with a water reducible alkyd air dried enamel.
The paint shall be applied in one coat with a minimum thickness of 3 to 4 mils.

11.01

TESTING
All pumps shall be individually tested to include the following:
1. The pump and power cord shall be visually inspected for imperfections, cuts or nicks.
2. The pump shall have a ground continuity check and the motor chamber shall be Hi-potted to
test for moisture content and/or insulation defects.
3. The motor and volute housing shall be pressurized and a 10 second air leak decay test run.
4. Oil is added, and the pump is run. Voltage and current are monitored visually, electronically,
and the tester listens for any noise or malfunction.

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145411 3 Hydromatic Sp50 Curves 16_6260 SP50.Specs User Manual

547931 3 Myers Sp50 Series Curves 547931_3_Myers SP50 Series Curves

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