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PAGE 8 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERATION MANUAL — REV. #0 (11/18/10)
ST4125G/ST6125G SUBMERSIBLE PUMP — SPECIFICATIONS
Table 1. Specifi cations
Model
ST4125G ST6125G
Type
Centrifugal Submersible Pump Centrifugal Submersible Pump
Impeller Cast Ductile Iron Cast Ductile Iron
Discharge Size 4.00 in. (101 mm) 6.00 in. (152 mm)
Max Solids .078 in (2 mm) .078 in (2 mm)
Maximum Pumping Capacity
380 gallons/minute
(1,438 liters/minute)
TBD
Max Head 111 ft. (33.8 meters) TBD
Power 10 HP (7.5 kw) 15 HP (11 kw)
Voltage/Phase 230/460 3Ø 230/460 3Ø
Starting Amps
180 (230V)
90 (460V)
TBD
Running Amps
24 (230V)
12 (460V)
TBD
Max Starts/Hr.
30 30
Enclosure Type
68 68
Insulation Class
FF
Max Temperature
104° F (40° C) 104° F (40° C)
Control Box Required See Note 3 See Note 3
Power Cable Length 50 ft. (15.2 m) 50 ft. (15.2 m)
Dry Weight 344 lb (156 kg) TBD)
Max Height 33.5 in (85.09 cm) TBD
Max Diameter 14.0 in (35.56 cm) TBD
1. Motor Rotation – Let pump hang freely from a lifting device. Start and stop pump while observing movement
(kick) of pump. If connected correctly the impeller will rotate clockwise (CW) as viewed from above. If pump rotates
counterclockwise interchange any two phases from the power source.
2. Mechanical Seal Oil – Use ISO VG32 lubrication oil, Mobile DTE 24 turbine oil 90 or equivalent. Fill oil chamber 75%
to 85% full (allow air space for expansion).
3. Control Box - For unattended operation, CB12 or CB14 Control Box (Table 3) is required. Control boxes will provide
thermal overload protection.