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Submersible Wastewater Pump PLS Series (Horizontal)

The PLS series is a submersible wastewater pump that is designed to handle water containing small solid particles. It features a horizontal semi-vortex design that allows for operation in shallow sumps or at low water levels. The pump is constructed of a special resin and stainless steel, which provides excellent corrosion resistance and makes it lightweight.

This pump is ideal for various applications such as pumping rainwater and spring water in areas where foreign objects are likely to run into the water. It is also suitable for transferring wastewater between tanks at small-scale treatment facilities. Additionally, the PLS-series is suitable for circulating water in water feature gardens such as waterfalls, fountains, and koi ponds.

SUBMERSIBLE WASTEWATER PUMP PLS 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

• 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.)

SUBMERSIBLE WASTEWATER PUMP PLS SERIES 2
SUBMERSIBLE WASTEWATER PUMP PLS SERIES 1

Comparison of Continuous Running Water Level

TYPE OF IMPELLER

Closed imeller
Closed

The closed impeller  is also referred to as shrouded impeller,as it has circular shrouds at both sides of the impeller vanes. Although the pump has a limited solids passage capability, it can be used for higher pumping head applications.

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 50
Pumping Fluid Type of Fluid Wastewater and
Water carrying Small 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
Starting Method Capacitor Run
Protection Device
(Built-in)
Circle Thermal Protector (0.75kW only)
Miniature Thermal Protector
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

Model 100-120V 200-240V Length
m
Material
Cores ×
mm2
Outer Dia.
mm
Cores ×
mm2
Outer Dia.
mm
50PLS2.15S 3 × 1.25 10.1 3 × 1.25 10.1 5 PVC
50PLS2.4S 3 × 1.25 10.1 3 × 1.25 10.1
50PLS2.75S 3 × 1.25 10.1 3 × 1.25 10.1

PERFORMANCE CURVES

MODEL SELECTION

Discharge
Bore
mm
Model Motor
Output
kW
Phase Starting
Method
Solids
Passage
mm
Dry
Weight
kg
50 50PLS2.15S 0.15 Single Capacitor Run 38 (10) 5.8
50 50PLS2.4S 0.4 Single Capacitor Run 24 (10) 6.7
50 50PLS2.75S 0.75 Single Capacitor Run 24 (10) 8.6

DIMENSIONS

Model d A B H1 H2 W
50PLS2.15S 50 341 142 180 185 220
50PLS2.4S 50 342 150 185 200 220
50PLS2.75S 50 362 150 185 201 310