sludge drainage pump head

Superior Submersible Raw Sewage Pump | 20hp STO-2032

STO series Auto-Setter Sewage Pump

Power: 1 - 20 HP

Motor: 4 Poles

DESIGNED FOR SEWAGE APPLICATION AND MAINTENANCE SIMPLIFIED BY AUTOMATIC CONNECTING DEVICE.

IMPELLER DESIGN

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.

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.

STO Auto-Setter Sewage Pump

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 m 3/min mm DSGN mm 2 x M kg mm mm

STO-112D 1 0.75 1 200-240 2 2 50 10 0.42 Ф25 B 1.25 2 x 6 36 465 584

STO-132D 1 0.75 3 220-480 2 2 50 10 0.42 Ф25 B 1.25 2 x 6 36 465 584

STO-212D* 2 1.5 1 200-240 2 3 80 14 0.72 Ф28 A 3.5 2 x 10 78 618 693

STO-232D* 2 1.5 3 220-480 2 3 80 14 0.72 Ф28 A 3.5 2 x 10 74 515 693

STO-332 3 2.2 3 220-480 4 3 80 14 1.3 40x50 B 3.5 2 x 10 115 721 755

STO-532 5 3.7 3 220-480 4 4 100 17 2 53x50 B 3.5 2 x 10 122 746 755

STO-732 7.5 5.5 3 220-480 4 4 100 23 2.3 88x46 C 5.5 2 x 10 177 803 899

STO-1032 10 7.5 3 220-480 4 4 100 26 2.3 88x46 C 5.5 2 x 10 197 824 899

STO-1532 15 11 3 220-480 4 6 150 22 4.5 117x48 C 5.5 2 x 10 302 976 1019

STO-2032 20 15 3 220-480 4 6 150 30 5 117x50 C 8.0 2 x 10 312 1006 1019

Note: "*" means the product series no. has recently been revised.

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 m 3/min mm DSGN mm 2 x M kg mm mm

STO-112D 1 0.75 1 200-240 2 2 50 12 0.45 Ф25 B 1.25 2 x 6 36 465 584

STO-132D 1 0.75 3 220-480 2 2 50 12 0.45 Ф25 B 1.25 2 x 6 36 465 584

STO-212D* 2 1.5 1 200-240 2 3 80 15 0.83 Ф28 A 3.5 2 x 10 78 618 693

STO-232D* 2 1.5 3 220-480 2 3 80 15 0.83 Ф28 A 3.5 2 x 10 74 515 693

STO-332 3 2.2 3 220-480 4 3 80 15 1.3 40x50 B 3.5 2 x 10 115 721 755

STO-532 5 3.7 3 220-480 4 4 100 19 2.0 53x50 B 3.5 2 x 10 122 746 755

STO-732 7.5 5.5 3 220-480 4 4 100 24 2.3 88x46 C 5.5 2 x 10 177 803 899

STO-1032 10 7.5 3 220-480 4 4 100 29 2.5 88x46 C 5.5 2 x 10 197 824 899

STO-1532 15 11 3 220-480 4 6 150 25 5.0 117x48 C 5.5 2 x 10 302 976 1019

STO-2032 20 15 3 220-480 4 6 150 33 5.1 117x50 C 8.0 2 x 10 312 1006 1019

Note: "*" means the product series no. has recently been revised.

PERFORMANCE CURVES

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