Small 12 Volt Brushless DC Motor Water Pump PWM Control

DKB60TSA brushless DC centrifugal water pump for electric water heater

DKB60TSA Series Industrial brushless DC water pump

Boosting/circulation/Variable-frequency/Low-noise/centrifugal pump/PWM control

■ Applications

1: Solar heating water circulation
2: Water Purification Equipments
3: Drinking water machines
4: Automatic water dispenser
5: Water cooling equipment
6: Engine cooling
7: Heating equipment cooling
8: Cooling Towers
9: Irrigation Landscape

■ Features
◆ Centrifugal pump
◆ Magnetic force transmission (shield pump structure)
◆ High efficiency brushless DC motor, low power consumption, high efficiency, long service life.
◆ With wide range operating temperature
◆ PWM signal speed controlling
◆ With constant flow controlling
◆ Reverse polarity protection (optional)
◆ Dry running protection (optional)
◆ Over Voltage, over current protection
◆ Overload, over temperature protection

■ Technical description (parts in contact with the liquid)
Pump head housing: PK+GF
Impeller: PPE+GF
Shield cavity: PK+GF
Shaft sleeve: Carbon resin composite materials/ ceramic sleeve
Shaft: ceramics axis/stainless steel shaft
Seal ring: EPDM

■ Driving device (Including motor)
Driving electromagnet: Plastic magnetic molding
Screws and nuts: SUS 304 stainless steel
Driving Motor : brushless motor
Motor wire frame: PPA+GF (black)
Pump housing: PPS+GF(UV resistance)
Bracket: SUS 304 stainless steel
Bracket hoop: US 304 stainless steel+ Damping rubber ring
Waterproof based on IP65 rating (en60529)
Wiring:3 leads / Waterproof connector is optional
Nozzle diameter:20.5mm (inner diameter:14.5mm)

■ Model Specifications

DKB60TSA-24G 24 V

■ Mounting instruction
DKB60TSA series pumps are centrifugal pumps which require pre-filled,
The pump installed in the lowest position of the system to ensure that the impeller is always immersed in the liquid, or pre-filled the pump before power on .

1: Pump should not be dry-running, even though it can dry-running for 30 seconds (after 30 seconds dry-running, it will automatically stop), Dry running will makes noise, also increasing abrasion to the shaft and shaft sleeve.

2: Use the recommended diameter threaded pipe connecting the pump inlet, if you use a smaller diameter hose pump inlet, Due to the negative pressure in the pump, the outside air easier enter to the pump through the pipeline, it will make the pump performance degradation, and also the air bubbles make damage to the pump.

3: As viewed from the pump inlet direction, the impeller rotates clockwise (see the arrow on the outlet port).

4: The pump can be installed vertically or horizontally mounted (see figure 1 ) When installed vertically, the outlet port should be upward .

5: In order to avoid the dry- running (air get stuck in impeller),the water pump outlet port should be vertical or in the upper of the impeller. (see figure 1 )

6: The connected pipe should be vertically mounted (or no elbow in 20cm )to make the air discharged easily, the outlet pipe should not be used less than 90 degrees Elbow (see figure 2).

7: Can't use the seawater or other heavy pollution with big grain impurity liquid as the liquid medium .

figure 1 figure 2 figure 3

■ Temperature parameter
Medium liquid temperature: -25℃ to +105℃ (-13°F to + 221°F)
Working ambient temperature: -10℃ to +100℃ (14°F to +212°F)
Storage temperature: -40℃ to +70℃ (-40°F to +158°F)
(up to 100 ℃, but it will shorten the service life)

■ System pressure
-0.2 to 2.5 bar ( 100℃ (212°F).
The service life is more than 20,000 hours based on the rated voltage and 36℃(86°F) ambient temperature.

■ Voltage range
Rated 24V water pump, workable range 18V - 30V
Although the motor can be used in a wide range of voltage and temperature, but excessive or too low voltage and temperature will affect the service life of the motor, the pump can not be exposed to thermal radiation ambient.

Medium liquid: pure water, liquid mixture (Water with below 60% glycol)

■ Electrical parameter
Specification:
No. category specification
1 Rated voltage 24V
2 Workable voltage 18V-30V
3 Rated power 5-55W
3 Flow range 0-22L/minuts
4 Range of lift 0-11M
5 Noise ≤45dB
6 Service life 20000H
7 Operating mode continuous working
8 Diameter of inlet 20.5mm( inside diameter:14.5mm)
9 Diameter of outlet 20.5mm( inside diameter:14.5mm)

■ Description of Wiring
Standard length of the wire: 40 CM (DO NOT DRAG THE WIRE)

Black:DC-

Red:DC+

■ Description of PWM

Three ways for speed regulation

1: 0-5V analog voltage
2: PWM duty cycle ratio 0%-100% (chart below)
3: Input PWM frequency (1K-10K Hz)

All datas are customizable for customer

■Customization service:
1:The pump parts customizable according to customer specific requirements
2:Pumps’ performance parameters customizable according to customer's requirements
3:Optional accessories of the pump customizable according to customer's requirements
4:Special circuit program customizable according to customer requirements
5:The outer housing can be customizable according to customer's requirements

■ Water pump structure

■ Water pump overall dimensions