VERTICAL MULTI-STAGE PUMP

DL VERTICAL MULTI-STAGE PUMP

Applications
Used for water supply: water filter and transport in water works, boosting of main pipeline, boosting in high-rise building.
For industrial boosting: process flow water system, cleaning system, high-pressure washing system, fire fighting system.
For industrial liquid conveying: cooling and air-condition system, feed water for boiler and condensing system, machine-associated purpose, acids and alkali.
For water treatment: ultra-filtration system, reverse osmosis system, distillation system, separator and swimming pools.
For irrigation: farmland irrigation, spray irrigation and dripping irrigation.

Operating Conditions
Thin, clean, non-explosive liquid containing no solid granules or fibres.
Liquid temperature: Normal type: -15 to +110 0C.

Motor
2-pole induction motor
Aluminium alloy motor case
Insulation class F
Protection IP55
Continuous duty

Technical Features
Performance Range Head: up-to 250m
Flow: 1 - 90 m3/h
Power: 0.37 to 45 kW
Liquid Temperature Limits: -15 to +110 0C
Working Pressure: 20-26 Bar

DL SINGLE PHASE FLANGED MOTOR

Applications
These motors are suitable for the occasion requiring low starting torque and long-term continuous working, such as home electric appliances, pumps, fans, and recording meters, etc.

Features
Running dual capacitors
Frame Size: 71-90
Rated Power Range: 2 pole 0.37kW -2.2kW
House Material: Aluminium (plastic terminal box)
Rated Voltage: 220V ⁺/₋ 5%, 50Hz
Protection Class: IP54/IP55
Insulation Class: Class B/F

DL THREE PHASE FLANGED MOTOR

Features
Frame Size Range: H80~H355
Housing Material: Frame, flange and bracket,
grey cast iron, conduit box-steel
Standard Mounting Construction:IEC60034-7
Protect Enclosed Class:IP55 (IEC60034-5)
Cooling Method: IC411 (IEC60034-6)
The special winding design can work for multivoltages
(50Hz or 60Hz)
Can withstand 1.5 times of the rated current
for 2 minutes (IEC60034-1)
Anti-condensation heater is available.
PTC or Pt100 thermistor are available to protect
the winding and bearing.

Standard 3-phase motors can be connected using the star of delta method. Star connection is achieved by wiring W2,U2, V2 to each other; and U1, V1, W1 leads to voltage supply. Delta connection is achieved by wiring the end of a phase to the
head of another.

Insulation Classification
The motors have insulation class F while the temperature rise is for class B ensuring a longer
service life.
Class H insulation motors can be manufactured at the customer’s request.
Under specified measuring conditions in accordance with IEC 60034-1 standard, insulation
class F for an electric motor means that at the ambient temperature of 400C the temperature
rise of its windings may be maximum 165K with the additional temperature margin of 10K.

DL THREE PHASE FLANGED MOTOR ALUMINIUM

Features
Three-phase removable feet standard efficiency aluminium induction motors. Position of
the terminal box can be changed according to the user’s requirements. Efficiency indicator
reaches IE1 standard.
Characteristics for al standard 3-phase aluminium induction motors are as follows:
1. IP55 protection, class F insulation,B temperature rise and S1 duty.
2. Rated voltage 400V or 525V, rated frequency 50Hz.
3. Y-connection for motors up to 3kW and - connection for 4kW and above.
4. Cooling method is Ic411.

Operation Conditions
Ambient temperature: -200C to 400C.
Altitude: <1000m

VERTICAL MULTI-STAGE PUMPS