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General Purpose Surface Pumps >> DAH - Automatic Booster Pumps

Performance Range
Max. Head: 32m
Max. Flow: 4.3m3/h
Power: 200W/400W/550W

Operating Limits
Ambient Temperature: not more than 50℃
Liquid temperature: 0~50℃
Max. working pressure: 0.5Mpa/5bar

Description:
DAH au tomatic water supply system is consisted of motor, pump end, pressure tank, pressure switch, flow switch and electronic controller, which is an integrated constant pressure flow controlled water supply and pressure boosting system.

The electronic controller could turn on or off the motor subject to the pressure and flow rate, suitable for water supply and pressure bosting of domestic and water tower.

Features:
Dry running protection
Automatic recovery after water supply available
Automatic re-set after power supply available
Flow control and pressure control:
when the pressure come down to the minimum starting pressure, pump will turn on, the minimum starting pressure adjustable;

When the flow rate less than minimum starting flow rate, pump will turn off; when the flow rate more than minimum starting flow rate, pump will turn on.
Anti-blocking protection: motor will running 10 seconds every 24 hours when the pump not working.

Motor
2 pole asynchronous motor.
Single phase electric motor with built-in thermal protector.
Insulation class: F
Protection grade: IP55
Working mode: continuous

Technical Data:

Model

Power P2
(Kw)

H. Max.
(m)

Q. Max
(m3/h)

Minimum Starting Pressure
(Bar/50Hz)

Adjustable Range of Starting Pressure
(Bar/50Hz)

DAH200

0.20

21

2.7

1.2

1.2~1.6

DAH400

0.40

22

4.2

1.6

1.6~2.0

DAH550

0.55

31

4.3

2.0

2.0~2.4

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