High Efficiency Circulator Water Pump
High Efficiency Circulator Water Pump
High Efficiency Circulator Water Pump

Master 25-8 High Efficiency Circulator Pump

Technical data

Power supply voltage

220~240V 50/60Hz, AC

Model

Master 25-8

Power

70W

Motor protection

No external protection required

IP class

IP44

Insulation class

H

Humidity(RH)

Max. 95%

System pressure

1.0 MPa

Certification

CE/ GS/ EMC/RoHS2.0/REACH

Environment temperature

-30+70

Temperature class

TF110

Liquid temperature

-20+110(Glycol up to 50%)

Type of connection/unions

Molex /TE/ Shinhoo standard

  • Item NO.:

    Master 25-8

1. Air and ground source heat pump system

2. Domestic Water Recirculation Systems

3. Heating and cooling system with variable pipeline temperature

4. Air conditioning system

5. Industrial and Commercial circulation system

6. Domestic hot water and drinking water supply system

1. Stable heating system with variable flow

2. System with night mode

3. System with variable temperature liquid

4. System with constant or variable flow

 

Advantages:

1. Intuitive one-button operation makes selection of any control mode simple

2. No external motor protection required reducing installation time

3. High-torque start improves startup under harsh conditions

4. Maintenance free and noiseless due to canned-rotor design and use of robust components

5. Fast connection plug makes electrical installation quick, safe and easy

6. Insulating shells  are available to minimize heat loss in heating systems

7. The pump features three constant-curve modes, proportional pressure curves, constant pressure curves, Auto and night mode.

8. The speed can also be controlled by a low-voltage PWM signal from a controller to optimize the system performance, both PWM1 for heating and PWM2 for solar systems are available.

9. High efficiency circulator which features well-designed compact structure, integrated controller and frequency converter.

10. It is easy for installation and operation in most fields of applications.

11. In terms of electricity consumption, the unique operation mode makes High efficiency circulator more energy saving.

 

Easy installation and operation

Equipped with Self Adapting Mode(Auto Mode, Factory Setting), pump runs once the power is connected and adapts its performance according to actual system needs.Control is effected by digital pulse-width modulation (PWM) low-voltage signal, enabling the pump to be used to meet different flow requirement in various systems.

Low noise and high comfort

Noise index: ≤42dB(A)

Low energy consumption

A class energy efficiency, Power consumption lowest to 5W

Multiple protection

With over-voltage and over-current protection

Eco-Design Benchmark

EEI≤0.21-Part 2

Quick release power plug

Start-up and stop the pump quickly

1.LEDs indicate the actual operating status.
2.The pump has a ceramic shaft and radial bearings, carbon thrust bearing, stainless-steel rotor can, bearing plate and rotor cladding, composite impeller, all of which contribute to long life.
3.Best magnet material ensures the high efficiency of motor and pump. 
4.The pump is self-venting through the system, which contributes to easy commissioning. The compact design with integrated control box and control panel on side of the motor fits into most common installations.
5.The pump housing is made of cast iron and electro coated to improve the corrosion resistance.
6.The motor is a synchronous permanent-magnet/compact-stator motor characterized by high efficiency.
7..The pump speed is controlled by an integrated frequency converter incorporated in the control box.
8.The pump equipped with different fast connection solutions (fast connector, TE, Molex etc) to fulfill the requirements of different systems. 

 

Working Conditions

1. Ambient temperature

The ambient temperature is -30℃+70℃.

2. Relative humidity of the air (RH)

The maximum humidity is 95%.

3. Media (conveying liquid) temperature

Temperature of liquid conveying -20110℃.

To prevent the control box and stator from appearing condensate water, the temperature of pump conveying liquid must be always higher than the ambient temperature.

4. System pressure

The maximum is 1.0 MPa (10 bar).

5. Protection Level

IP44

6. Inlet pressure

To avoid damage to the pump bearing caused by cavitation noise, the following minimum pressure should be maintained in the pump inlet:

Liquid temperature

75℃

95℃

110℃

Inlet pressure

0.05bar

0.5bar

1.08bar

Head of delivery of 0.5m

Head of delivery of 5m

Head of delivery of 10.8m

 

7. Pumping liquid

Thin, clean, non-corrosive and non-explosive liquid does not contain any solid particles,fibers or mineral oil; the pump should not be used for conveying flammable liquid such as vegetable oil and gasoline absolutely. If the circulating pump is used for the case of high viscosity, the pump performance will reduce, therefore, when selecting a pump, the viscosity of liquid must be considered.

8. Installation Drawing

Master 25-8 Installation Drawing

 

Master 25-8 performance curve

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