-5-
CAUTION
• To supply voltage variation within ±10% of the rated voltage.
• The water temperature for operating the pump should be between 0 ~ 40℃.
Failure to observe the precautions given above could cause the pump to
malfunction, which may lead to current leakage or electrical shock.
Critical Use Pressure
CAUTION
Do not operate the pump in an area that is exposed to a water pressure that
exceeds the values given below.
Preparation for Installation
Insulation resistance reference value
= 20M Ω minimum
Note:
The insulation resistance reference value of 20M Ω minimum is based on a new or repaired
pump. For reference values of a pump that has already been put into operation, refer to "7.
Maintenance and Inspection" of this manual.
Note:
To use the pump for a special solution, contact the dealer where it was purchased, or the
Tsurumi sales office in your area.
Single-phase power supply:
Use a megger to measure the resistance between
each core of the cabtyre cable and the (green)
ground wire to verify the insulation resistance of
the motor.
Note:
The weight (mass) given above is the operating weight of the pump itself, not including the
cabtyre cable.
Standard specifications (50/60Hz)
Bore
mm
Model
Output
kW
Phase
Max.capacity
m
3
/min
GPM
Starting
Method
WHT
kg
50(80)
LB-1500
1.5
1
Capacitor-Start
32.5
Max.Head
m
ft.
17.5/21
57.4/68.9
0.42/0.42
111.0/111.0
50(80)
LBT-1500
1.5
3
Direct-on-Line
31.5
17.5/21
57.4/68.9
0.42/0.42
111.0/111.0
CAUTION
Do not operate this product under any conditions other than those that have
been specified.
Major Standard Specifications
Product Specifications
Applicable Liquids Consistency and
Temperature
Water, Rain Water, Font Water, Sand carring Water,
Ground Water ; 0 ~ 40℃
Pump
Impeller
Semi-Open Type
Shaft Seal
Double Mechanical Seal
Bearing
Shielded Ball Bearing
Specifications
Dry Submersible Induction Motor, 2-Pole
Insulation
Class B (1-phase) Class E (3-phase)
Protection System (built-in) Circle thermal protector
Turbine oil VG32 (non-additive)
Lubricant
Connection
Hose Coupling
Motor
L1-Red(Brown)
G-Green(Green/Yellow)
L2-White(Blue)
MΩ
L1 L2 G
Single-Phase
0.3MPa (3kgf/cm
2
) - discharge pressure during use
Critical Use Pressure
4 INSTALLATION
