Design A
Dual-blade semi-open type non-clog impeller.
Design B
Single-blade semi-open type non-clog impeller.
Design C
Dual-blade shrouded type non-clog impeller.
Power: 1 - 20 HP
Motor: 4 Poles
DESIGNED FOR SEWAGE APPLICATION AND MAINTENANCE SIMPLIFIED BY AUTOMATIC CONNECTING DEVICE.
The STO pump offers reliable and economical pumping of heavily polluted sewage in commercial, industrial, and municipal applications. It provides excellent wastewater solid handling.
IMPELLER DESIGN
MAINTENANCE SIMPLIFIED BY AUTOMATIC CONNECTING DEVICE
The automatic connecting device performs connection/ disconnection between a pump and piping only by lifting the pump down / up along guide pipes, so the maintenance and inspection work can be done without entering the septic tank.
FEATURES
SiC Mechanical Seal
Equipped with double mechanical seals with heat-and-corrosion-resistant silicon carbide to prevent the motor from water infiltration.
EPOXY Cable Sealing Base
Waterproof cabtyre cable prevent water infiltration, cable ends sealed with epoxy resin, and lead wires are partially tripped off for perfect resin sealing. Triple protection for the motor against water penetration.
Built-in Motor Protector
All FO/STO Series Submersibe Raw Sewage Pump is equipped with a self-reset circle motor protector to avoid over-loading, locking of impeller, and scorch damage to the motor from phase failure.
APPLICATIONS for Submersible Raw Sewage Pump
- Effluent pumping in industrial wastewater treatment plants.
- Sewage wastewater and solid treatment in various factories and building sites.
- Food processing factory.
- Confined livestock feeding industry.
- Pulp and paper factory.
- Residential houses.
- Restaurants and shops.
- Markets and supermarkets.
SPECIFICATIONS (50Hz)
| Series | Power | Phase | Voltage | Poles | Discharge Dia. | Max Head | Max Flow | Solid Passage | Impeller Design | Cable Size x L | Wt. | Height | Pump Dia. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 Hz | HP | kW | PH | V | P | inch | mm | M | m3/min | mm | DSGN | mm2 x M | kg | mm | mm |
| STO-112D | 1 | 0.75 | 1 | 200-240 | 2 | 2 | 50 | 10 | 0.42 | Ф25 | B | 1.252 x 6 | 36 | 465 | 584 |
| STO-132D | 1 | 0.75 | 3 | 220-480 | 2 | 2 | 50 | 10 | 0.42 | Ф25 | B | 1.252 x 6 | 36 | 465 | 584 |
| STO-212D* | 2 | 1.5 | 1 | 200-240 | 2 | 3 | 80 | 14 | 0.72 | Ф28 | A | 3.52 x 10 | 78 | 618 | 693 |
| STO-232D* | 2 | 1.5 | 3 | 220-480 | 2 | 3 | 80 | 14 | 0.72 | Ф28 | A | 3.52 x 10 | 74 | 515 | 693 |
| STO-332 | 3 | 2.2 | 3 | 220-480 | 4 | 3 | 80 | 14 | 1.3 | 40x50 | B | 3.52 x 10 | 115 | 721 | 755 |
| STO-532 | 5 | 3.7 | 3 | 220-480 | 4 | 4 | 100 | 17 | 2 | 53x50 | B | 3.52 x 10 | 122 | 746 | 755 |
| STO-732 | 7.5 | 5.5 | 3 | 220-480 | 4 | 4 | 100 | 23 | 2.3 | 88x46 | C | 5.52 x 10 | 177 | 803 | 899 |
| STO-1032 | 10 | 7.5 | 3 | 220-480 | 4 | 4 | 100 | 26 | 2.3 | 88x46 | C | 5.52 x 10 | 197 | 824 | 899 |
| STO-1532 | 15 | 11 | 3 | 220-480 | 4 | 6 | 150 | 22 | 4.5 | 117x48 | C | 5.52 x 10 | 302 | 976 | 1019 |
| STO-2032 | 20 | 15 | 3 | 220-480 | 4 | 6 | 150 | 30 | 5 | 117x50 | C | 8.02 x 10 | 312 | 1006 | 1019 |
PERFORMANCE CURVES
SPECIFICATIONS (60Hz)
| Series | Power | Phase | Voltage | Poles | Discharge Dia. | Max Head | Max Flow | Solid Passage | Impeller Design | Cable Size x L | Wt. | Height | Pump Dia. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 60 Hz | HP | kW | PH | V | P | inch | mm | M | m3/min | mm | DSGN | mm2 x M | kg | mm | mm |
| STO-112D | 1 | 0.75 | 1 | 200-240 | 2 | 2 | 50 | 12 | 0.45 | Ф25 | B | 1.252 x 6 | 36 | 465 | 584 |
| STO-132D | 1 | 0.75 | 3 | 220-480 | 2 | 2 | 50 | 12 | 0.45 | Ф25 | B | 1.252 x 6 | 36 | 465 | 584 |
| STO-212D* | 2 | 1.5 | 1 | 200-240 | 2 | 3 | 80 | 15 | 0.83 | Ф28 | A | 3.52 x 10 | 78 | 618 | 693 |
| STO-232D* | 2 | 1.5 | 3 | 220-480 | 2 | 3 | 80 | 15 | 0.83 | Ф28 | A | 3.52 x 10 | 74 | 515 | 693 |
| STO-332 | 3 | 2.2 | 3 | 220-480 | 4 | 3 | 80 | 15 | 1.3 | 40x50 | B | 3.52 x 10 | 115 | 721 | 755 |
| STO-532 | 5 | 3.7 | 3 | 220-480 | 4 | 4 | 100 | 19 | 2.0 | 53x50 | B | 3.52 x 10 | 122 | 746 | 755 |
| STO-732 | 7.5 | 5.5 | 3 | 220-480 | 4 | 4 | 100 | 24 | 2.3 | 88x46 | C | 5.52 x 10 | 177 | 803 | 899 |
| STO-1032 | 10 | 7.5 | 3 | 220-480 | 4 | 4 | 100 | 29 | 2.5 | 88x46 | C | 5.52 x 10 | 197 | 824 | 899 |
| STO-1532 | 15 | 11 | 3 | 220-480 | 4 | 6 | 150 | 25 | 5.0 | 117x48 | C | 5.52 x 10 | 302 | 976 | 1019 |
| STO-2032 | 20 | 15 | 3 | 220-480 | 4 | 6 | 150 | 33 | 5.1 | 117x50 | C | 8.02 x 10 | 312 | 1006 | 1019 |
PERFORMANCE CURVES
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