page 8 — st4/st6 series submersible pumps • operation anD parts manual — rev. #1 (11/12/13)
sPeCifiCaTions
table 1. specifications
model
st41230
st41460
st61230
st61460
type
Centrifugal
Centrifugal
Centrifugal
Centrifugal
impeller
Chrome Steel
Chrome Steel
Chrome Steel
Chrome Steel
Discharge size in. (mm)
4.00 (101)
4.00 (101)
6.00 (152)
6.00 (152)
max solids in. (mm)
0.60 in (15.2)
maximum pumping Capacity
gallons/min (liters/min.)
423 (1,600)
423 (1,600)
674 (2,450)
674 (2,450)
max Head ft. (m)
138 ft. (42.1)
138 ft. (42.1)
105 ft. (32.5)
105 ft. (32.5)
power Hp (kW)
10 (7.5)
10 (7.5)
15 (11)
15 (11)
Frequency Hz.
60
voltage (phase)
230 (3Ø)
460 (3Ø)
230 (3Ø)
460 (3Ø)
starting amps (volts)
172.2 (230)
85.8 (460)
258 (230)
129 (460)
running amps (volts)
28.6 (230)
14.3 (460)
43 (230)
21.5 (460)
maximum temperature
°F (°C)
140°F (60°C)
oil Chamber Capacity oz. (cc)
40 (1,200)
47 (1,400)
lubrication oil
ISO VG32 or Equivalent
mechanical seal
See Note 2
See Note 2
See Note 2
See Note 2
motor speed rpm
3,600
enclosure protection
IP68
insulation Class
F
power Cable length ft. (m)
33 (10)
Weight lbs. (kg)
205 (93)
205 (93)
301 (137)
301 (137)
Control box
See Note 3
See Note 3
See Note 3
See Note 3
note 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.
note 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).
note 3:
Control box
- For unattended operation, CB1269, CB1274, CB1456, or CB1463 Control Boxes (Table 4) are required.
All control boxes provide thermal overload protection.
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