Submersible Sewage Pump PU Series

The PU series is a type of vortex pump that has been specifically created to manage a range of different fluids, including raw sewage, wastewater, and other liquids that are commonly found in industrial and commercial applications. This pump has been designed with a solid handling system that ensures it can operate efficiently without getting clogged up, even when handling sewage.

The pump is made from a combination of special resin and stainless steel, which makes it lightweight and resistant to corrosion. This means that it can be used in a variety of different environments and applications, without suffering from any significant wear and tear. Overall, the PU series vortex pump is a reliable and effective choice for anyone looking for a pump that can handle challenging fluid management tasks.

SUBMERSIBLE SEWAGE PUMP PU SERIES

SELECTION TABLE

Category Series Discharge Bore mm Impeller Model Motor Output kW
0.15 0.25 0.4 0.75 1.5 2.2 3.7
Sewage PU 40 - 80 Vortex Standard
Automatic
Auto-alternation
Wastewater PN 40 - 80 Vortex Standard  
Automatic  
Auto-alternation  
Wastewater
-High Head-
PSF 40 - 65 Closed Standard  
Automatic  
Auto-alternation  
Wastewater
-Horizontal-
PLS 50 Vortex Standard        
Seawater TM 40 - 80 Vortex Standard  
Automatic  
Wastewater
-Economic-
OM 32 Vortex Standard            
Automatic            

APPLICATIONS

• Draining sewage from factory, residence, hotel, restaurant, etc.
• Pumping rainwater and springwater at a place where foreign objects are likely to run into the water
• Transferring wastewater between the tanks at small-scale treatment facility
• Circulating water in waterscape garden (e.g. waterfall, fountain, koi pond, etc.)

TYPE OF IMPELLER

The vortex impeller is Rotation of the impeller produces a whirling, centrifugal action between the impeller and the pump casing, and it moves the fluid through the pump. Being coupled with a wide pump casing, wastewater containing solid matters can be pumped out without obstruction.

GUIDE RAIL FITTING

TOK Application Table

Model Applicable Motor Output
TOK4-P 0.15 to 0.75kW
TOK2-65 1.5kW
TOK2-65T 2.2 to 3.7kW

Accessories
• Duckfoot Bend
• Guide Hook
• Guide Support with Bolts & Nuts
• Lifting Chain with Shackles (4m for TOK4-P, 5m for TOK2-65 / 65T)

MODEL NUMBER DESIGNATION

SUBMERSIBLE SEWAGE PUMP DESIGN

TOK GUIDE RAIL FITTING SYSTEM

The TOK guide rail fitting system connects the
pump to and from the piping easily just by lowering
and hoisting the pump, allowing easy maintenance
and inspection without the need to enter the sump.

Made of high-quality resin, the TOK is designed
for lightweight, small to middle sized pumps.
Rubber bellows attached to the guide hook are
inverted to the duckfoot bend when the pump
starts operating, and it seals by the pumping
pressure. This eliminates leakage at the seal
even if a lightweight pump is used in combination
with the TOK.

The TOK is available in all motor output ranges of
the PU, PN, and PSF series.

AUTOMATIC & AUTO-ALTERNATION MODEL

Automatic Model

The float type automatic model has an integral control circuit and two float switches that operate at a low voltage. It operates automatically in response to the change in water levels.

This model can be identified by the suffix “A” and is availa-ble in all motor output ranges of the PU, PN, PSF, and TM series.

The cylindrical float type automatic model is available only for the OM-series. Adoption of the unique float switch has made even the automatic model very compact and enables it to be installed in a limited space. Automatic operation is possible with a simple power panel.

Auto-alternation Model

The auto-alternation model is used along with an automatic model. The combinational use of these two pumps enables each pump to operate alter- nately without control panel.

The auto-alternation model has three floats and can be identified by the suffix “W”. Refer to model selection for availability and model num- bers of the PU, PN, and PSF series.

MAJOR COMPONENTS & SPECIFICATIONS

Discharge Bore mm 40 50 80
Pumping Fluid Type of Fluid Sewage, Wastewater, and
Water carrying Solid Matters
Fluid Temperature 0 to 40℃
Pump Structure Impeller Vortex
Shaft Seal Double Mechanical Seal (with Oil Lifter)
Bearing Double-shielded Ball Bearing
Materials Impeller Glass-fiber Reinforced Resin
Casing Glass-fiber Reinforced Resin
Shaft seal Silicon Carbide
Motor Type, Pole Dry-type Submersible
Induction Motor, 2-pole
Insulation Class E
Phase Single-phase (suffix "S")
Three-phase
Starting Method Capacitor Run (single-phase only)
Direct on Line
  Circle Thermal Protector
Miniature Thermal Protector
(40PU2.15S, 40PU2.25S & 50PU2.4S only)
Protection Device (Built-in)
Lubricant Liquid Paraffin (ISO VG32)
Materials Frame 304 Stainless Steel
Shaft 420 Stainless Steel (0.15kW only)
304 Stainless Steel
Cable PVC
Discharge Connection Screwed Flange

CABTYRE CABLES

Single-phase

Model 100-120V 200-240V Length
m
Material
Cores ×
mm2
Outer Dia.
mm
Cores ×
mm2
Outer Dia
. mm
40PU2.15S 3 × 1.25 10.1 3 × 1.25 10.1 5 PVC
40PU2.25S 3 × 1.25 10.1 3 × 1.25 10.1
50PU2.4S 3 × 1.25 10.1 3 × 1.25 10.1
50PU2.75S 3 × 2.0 10.9 3 × 1.25 10.1

Three-phase

Model 200-240V 380-600V Length
m
Material
Cores ×
mm2
Outer Dia.
mm
Cores ×
mm2
Outer Dia.
mm
40PU2.15 4 × 1.25 11.1 4 × 1.25 11.1 6 PVC
40PU2.25 4 × 1.25 11.1 4 × 1.25 11.1
50PU2.4 4 × 1.25 11.1 4 × 1.25 11.1
50PU2.75 4 × 1.25 11.1 4 × 1.25 11.1
80PU21.5 4 × 1.25 11.1 4 × 1.25 11.1
80PU22.2 4 × 2.0 11.8 4 × 1.25 11.1
80PU23.7 4 × 3.5 13.9 4 × 2.0 11.8

PERFORMANCE CURVES

MODEL SELECTION

Discharge
Bore
mm
Model Motor
Output
kW
Phase Starting
Method
Solids Passage
mm
Dry Weight kg
Standard Automatic Auto-alternation Standard Auto &
Auto-alternation
40 40PU2.15S 40PUA2.15S 40PUW2.15S 0.15 Single Capacitor Run 35 6.1 6.7
40 40PU2.15 40PUA2.15 40PUW2.15 0.15 Three D.O.L. 35 5.6 6.3
40 40PU2.25S 40PUA2.25S 40PUW2.25S 0.25 Single Capacitor Run 35 7.1 7.8
40 40PU2.25 40PUA2.25 40PUW2.25 0.25 Three D.O.L. 35 6.1 6.8
50 50PU2.4S 50PUA2.4S 50PUW2.4S 0.4 Single Capacitor Run 35 7.1 7.8
50 50PU2.4 50PUA2.4 50PUW2.4 0.4 Three D.O.L. 35 7 7.7
50 50PU2.75S 50PUA2.75S - 0.75 Single Capacitor Run 35 8.9 9.5
50 50PU2.75 50PUA2.75 50PUW2.75 0.75 Three D.O.L. 35 8.3 9
80 80PU21.5 80PUA21.5 80PUW21.5 1.5 Three D.O.L. 46 16 16.9
80 80PU22.2 80PUA22.2 80PUW22.2 2.2 Three D.O.L. 46 22 23
80 80PU23.7 80PUA23.7 80PUW23.7 3.7 Three D.O.L. 46 27 28

DIMENSIONS

Model d A B H W1 W2
40PU2.15S 40 225 154 377 340 105
40PU2.15 40 225 154 377 340 105
40PU2.25S 40 236 162 360 325 110
40PU2.25 40 236 162 349 310 110
50PU2.4S 50 236 162 360 325 110
50PU2.4 50 236 162 360 325 110
50PU2.75S 50 236 162 380 345 110
50PU2.75 50 236 162 374 335 110
80PU21.5 80 295 196 475 430 150
80PU22.2 80 311 212 583 520 155
80PU23.7 80 311 212 618 555 155