Single-phase Portable Pumps HS Series

Single-phase Portable Pumps HS Series are compact and lightweight, so they are very easy handle and carry. Available in an extensive lineup of motor outputs ranging from 0.1 to 2.2kW, these pumps are suited for a wide range of applications besides general pumping and drainage, including slurries, residues and household uses.

Though compact in size, these pumps pack a host of original technologies that Tsurumi has tested and proven over many years, including the anti-wicking cable, inside mechanical seal with silicon carbide face and Oil Lifter*, etc. Additionally, key components that are prone to wear are made of durable materials and pumps as a whole are designed for continuous duty. For these reasons, Tsurumi single-phase portable pumps are a popular choice at civil engineering, construction and other work sites that demand high reliability.

HS SERIES

          Tsurumi has been manufacturing construction dewatering pumps for more than 50 years. This has led to numerous technologies and know-how
for improving the durability and maintainability of pumps in the rental and construction markets where rugged work environments demand heavy-duty specifications. All of Tsurumi’s pumps are designed and built to be durable and reliable so as to serve users dependably.

Feature

Selection Table

Selection Table

Submersible

Non
Submersible

Submersible

Drainage Slurry Residue Drainage Residue Domestic
LB HS HSD HSR NK LSC LSP FAMILY
Discharge Bore

mm

50(80) 50 • 80 50 50 50 • 80 25 25 15, 25
Motor Output

kW

0.48 - 1.5 0.4 • 0.75 0.55 0.4 1.5 • 2.2 0.48 0.48 0.1
Discharge
Design
Top
Discharge
Flow-Thru

       

Side Flow        

     
Side Discharge  

       
Automatic Operation LB-A
(Electrodes)
HSZ
(Float)
- - - - - FAMILY-A
(Cylindrical Float)
Page No. 7 - 8 9 - 10 11 - 12 13 - 14 15 - 16 17 - 18

Motor Cooling & Dicscharge Design

Top Discharge, Flow-Thru Design
(LB , LB-A , LSC , FAMILY , FAMILY-A)
This design provides maximum motor cooling efficiency allowing continuous operation at low water levels and extended dry-run capability, and also allows the shape of the pump to be cylindrical and slim for installation in a well casing for deep well dewatering.

Top Discharge, Side Flow Design
(NK)
This design assures efficient motor cooling even if the pump runs with its motor exposed to air, and also allows the overall diameter of the pump to be reduced for installation in  confined spaces.

Side Discharge, Spiral Design
(HS , HSZ , HSD , HSR)
The pump has a spiral pump casing that facilitates smoother passage of foreign objects like mud and soil contained in the pumped liquid. It is a simple and practical design that facilitates inspection and repair work.

Residue Drainage

HSR
Can pump water as shallow as 5mm from the bottom of the pump and drain water to 1mm in depth.

LSC
Can drain water to 1mm in depth. A valve seat and swing check valve prevent suctioned water from backflowing.

LSP
Can pump pooled water from shallow recesses using the suction attachment. A syphon breaker mechanism prevents backflowing and the seal water from draining out.

FAMILY option
At tac hing the opti onal resi due adapter to the pump casing allows draining to 1mm in depth.
* excluding automatic model

Automatic Operation

The automatic model only operates when sufficient water is present. It not only reduces power consumption but also extends the life of wear parts of the pump as it eliminates dry-running that causes early wear-out.

Float Switch (HSZ / FAMILY-A)
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HS -Multi-field Use Pumps-

• Spiral Design
• Anti-wicking Cable Entry
• Motor Protector
• Dual Inside Mechanical Seal
• Oil Lifter
• V-ring (0.55kW and above)
• Cable Clip
• Rubber / Resin-made Stand
• Agitator (HS/HSZ/HSD)
• Multi-directional Hose Coupling (HSR)

      The HS/HSZ/HSD/HSR series are submersible single-phase portable pumps. The shaft-mounted agitator prevents the air lock that tends to take place on vortex or semi-vortex pumps.* The rubber/resin-made stand protects the floor surface from scratching. The HSZ-series with a single float switch reduces power consumption and extends operating life. The HSD pump is equipped with a high-chromium cast iron agitator that assists smooth suction of the settled matters.The HSR pump can start pumping if there is water with its level of 5mm or more and can continue pumping the water level goes down to 1mm. Additionally, the discharge direction is selectable between vertical and inclined, which prevents folding or bending of the discharge hose.

* excluding HSR

Model Discharge Bore
mm
Motor Output
kW
Phase Starting Method Solids Passage
mm
Dry Weight
kg
Cable Length
m
HS HS2.4S 50 0.4 Single Capacitor Run 7 11.3 5
HS2.75S 50 0.75 Capacitor Run 7 16.4 5
HS3.75S 80 0.75 Capacitor Run 7 16.8 5
HSZ
-Automatic-
HSZ2.4S 50 0.4 Capacitor Run 7 11.3 5
HSZ2.75S 50 0.75 Capacitor Run 7 16.4 5
HSZ3.75S 80 0.75 Capacitor Run 7 16.8 5
HSD
-Slurry-
HSD2.55S 50 0.55 Capacitor Run 9 14 5
HSR
-Residue-
HSR2.4S 50 0.4 Capacitor Run 3 10.8 5

• Male threaded coupling for pipe connection available on special request
• Weights excluding cable

Performance Curves

Standard and Automatic models have the identical performance.

Dimensions

Unit: mm

Model A B D H F FL1 FL2
HS2.4S 241 158 184 328 - - -
HS2.75S/HS3.75S 285 218 184 394 - - -
HSZ2.4S 241 158 184 328 340 120 385
HSZ2.75S/HSZ3.75S 285 218 184 394 370 150 475

Automatic Operation (LB-A)

Optional Accessory

Extension Probe x 2
Optional Accessory

It is possible to set a lower starting water level by using an extension probe (optional accessory). The starting water level is adjustable because the extension probe can be cut to the desired length as it is made of coil spring.

Structure

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1.Anti-Wicking Cable Entry
Prevents water incursion due to capillary action should the cable sheath be damaged or the end of cable submerged. Also prevents moist air from infiltrating the motor housing and condensation from forming inside the housing due to temperature differences between the housing and outside air.

2. Motor Protector
MTP (0.48kW and below)
Detects excess heat, therefore, protecting the pump against overheating and dry-running.
CTP (0.55kW and above)
Directly cuts the motor circuit if excessive heat builds up or overcurrent occurs in the motor.

3.Dual Inside Mechanical Seals with Silicon Carbide Face
Inside Mechanical Seal with Silicon Carbide Face (FAMILY)
Isolated in the oil chamber where a clean, non-corrosive and abrasion-free lubricating environment is maintained. Compared with the water-cooled outside mechanical seal, it reduces the risk of failure caused by dry-heating and adhering matter. The silicon carbide provides 5 times higher corrosion, wear and heat resistance than the tungsten carbide.

4.Oil Lifter
* Not available for FAMILY
Provides lubrication and cooling of the seal faces down to 1/3 of normal oil level, thus maintaining a stable shaft sealing effect and prolonging seal life longer. The Oil Lifter is Tsurumi original design.

 

5.V-Ring / Oil Seal (excluding HS(Z/R)2.4S, FAMILY)
Used as a “Dust Seal”, they protect the mechanical seal from abrasive particles.

6.Cable Clip (excluding NK3-22L, LSP, FAMILY)
Prevents unexpected water incursion that can occur if the cable is damaged, by protecting the cable against the tugging and rough handling found at construction sites.

7.Agitator
For HS and HSZ
Prevents the air lock that tends to take place on vortex or semi-vortex pumps.
For HSD
Assists the pump in sucking and transferring bentonite slurry, slime, mud, and water with high sand content.

8.Resin-made Stand (HS / HSZ / HSD)
Rubber Stand (HSR / LSC / LSP)
Prevents scratching of floor surface.

9.Multi-Directional Hose Coupling (LB / LB-A / HSR / LSC)
Can be configured for inclined or vertical discharge, allowing for smoother installation.

Specifications

Series LB/LB-A , HS/HSZ/HSD/HSR , NK , LSC , LSP ,FAMILY/FAMILY-A

  LB LB-A
Automatic
HS HSZ
Automatic
LB-480 LB-800 LB-1500 LB-480A LB-800A HS2.4S HS2.75S
HS3.75S
HSZ2.4S HSZ2.75S
HSZ3.75S
PUMP Discharge Bore
mm
50 50(80) 50 50(80) 50 50
80
50 50
80
Discharge Connection Hose Coupling
Solids Passage
mm
6 7
Impeller Semi-vortex Semi-open Semi-vortex
Urethane Rubber High-chromium Cast Iron Urethane Rubber
V-Ring / Oil Seal Nitrile
Butadiene
Rubber
Nitrile
Butadiene
Rubber
Nitrile
Butadiene
Rubber
Casing Synthetic Rubber Gray
Cast Iron
Ductile
Cast Iron
Gray
Cast Iron
Ductile
Cast Iron
Shaft Seal Dual Inside Mechanical Seals (with Oil Lifter)
Silicon Carbide
Agitator Sintered Alloy
MOTOR Type Continuous-duty Rated. Dry-type Induction Motor
Output
kW
0.48 0.75 1.5 0.48 0.75 0.4 0.75 0.4 0.75
Phase Single-phase
Pole 2
Insulation E B E
Starting Method Capacitor Run Capacitor
Start
Capacitor Run
Motor Protector
(built-in)
MTP CTP MTP CTP MTP CTP MTP CTP

ml

Lubricant
155 350 155 160
Turbine Oil (ISO VG32)
Shaft 403 Stainless Steel

m

Cable
5 10 5
PVC Chloroprene
Rubber
PVC
Automatic Control Device Electrodes Float Switch
Dry Weight*
kg
10.4 13.1 33 11 13.7 11.3 16.4
16.8
11.3 16.4
16.8

* Weights excluding cable

  HSD
Slurry
HSR
Residue
NK LSC
Residue
LSP
Residue
FAMILY FAMILY-A
Automatic
HSD2.55S HSR2.4S NK3-15 NK4-22 NK3-22L LSC1.4S LSP1.4S FAMILY-12 FAMILY-12A
PUMP Discharge Bore
mm
50 80 25 15. 25
Discharge Connection Hose Coupling
Solids Passage
mm
9 3 8.5
Impeller Semi-vortex Semi-open Semi-vortex
High-chromium
Cast Iron
Urethane
Rubber
Dcutile Cast Iron High-chromium
Cast Iron
Urethane Rubber Glass-fiber Reinforced Resin
V-Ring / Oil Seal Nitrile Butadiene Rubber Nitrile Butadiene Rubber
Casing Ductile Cast Iron Synthetic Rubber Gray Cast Iron Synthetic Rubber Resin
Shaft Seal Dual Inside Mechanical Seals (with Oil Lifter) Inside Mechanical Seal
Silicon Carbide
Agitator High-chromium
Cast Iron
MOTOR Type Continuous-duty Rated, Dry-type Induction Motor
Output
kW
0.55 0.4 1.5 2.2 0.48 0.1
Phase Single-phase
Pole 2
Insulation E F B E
Starting Method Capacitor Run Capacitor Start Capacitor Start
+ Capacitor Run
Capacitor Run
Motor Protector
(built-in)
CTP MTP CTP MTP

ml

Lubricant
160 270 155 150 30
Turbine Oil (ISO VG32) Liquid Paraffin (ISO VG15)
Shaft 403 Stainless Steel 420 Stainless Steel 403 Stainless Steel 420 Stainless Steel

m

Cable
5 10 5 3
PVC Chloroprene Rubber PVC
Automatic Control Device Cylindrical Float Switch
Dry Weight* kg 14 10.8 29 40 12 16.5 3.4 3.6

* Weights excluding cable