What Are You Looking For?
|
Power supply voltage |
220-240V 50/60Hz, PE |
|
Motor protection |
No external protection required |
|
IP class |
IP44 |
|
Insulation class |
H |
|
Humidity(RH) |
Max. 95% |
|
System pressure |
1.0 MPa |
|
Compliance |
CE/ GS/ EMC/ LVD/RoHS/REACH |
|
Environment temperature |
0～+40℃ |
|
Temperature class |
TF110 |
|
Liquid temperature |
-30～+110℃ (Glycol up to 50%) |
|
Voltage/ Frequency |
230V/50HZ |
|
Pump housing |
Cast iron/Stainless steel |
|
Energy(EEI) |
≤0.23-Part2 |
Item NO.:
Mega 25-81. Boiler circuit pump
2. Primary circuit pump
3. Pump in one- and two-pipe heating systems
4. Heating circuit pump in a domestic hot water circulation
5. Heat pump in air heating systems
6. Pump for underfloor heating systems
7. Heat regeneration and recovery systems
8. Condenser and dry cooler circuit pump
9. Consumer circuit pump (fan coils)
10. Pump of cold supply systems in central air conditioners
Mega automatic circulator pump is the ideal choice for almost any building project – old or new. With its unrivalled energy efficiency, all-encompassing range and built-in communication capabilities.
Mega is ideal for engineers and specifiers looking to create high-performance heating and cooling systems.
The pump is maintenance-free due to the canned-rotor type design. This also means that pump and motor form an integral unit without shaft seal and with only two gaskets for sealing. The bearings are lubricated by the pumped liquid. MEGA features PWM and 0-10V external control.
Construction
Mega pumps are wet rotor pumps, i.e. the pump and the motor are a single-piece unit without shaft end seal. The bearings are lubricated with pumped liquid.
The pumps feature:
• controller built in a control unit;
• operating panel at the front of the pump;
• external protection of the motor is not required.
Motor and frequency converter
Mega pumps are equipped with permanent-magnet motor. This motor type is characterized by an increased efficiency in comparison with traditionally used asynchronous squirrel-cage motors. Motor speed is set up by a built-in frequency converter.
Pump connections
Threaded pipe and flange connections.
Surface finish quality
A pump housing and its head part have cataphoretic coating for better corrosion resistance.
Cataphoretic coating application includes the following steps:
• alkali cleaning;
• zinc phosphate pre-treatment;
• cathodic electrodeposition (cataphoresis);
• varnish-and-paint film drying at 200 °C–250 °C.
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 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 6W
Multiple protection
With over-voltage and over-current protection
Eco-Design Benchmark
EEI≤0.23-Part 2
Quick release power plug
Start-up and stop the pump quickly.
Product photo and 4 control modes
Press button to switch between different control modes and increase or decrease the setting with the buttons on left and right side.
|
Setting |
Explanation |
|
Auto |
Running with in Defined Range |
|
BL |
Propotional pressure curve |
|
HD |
Constant pressure curve |
|
HS |
Constant Speed curve |
Operating conditions
General instructions
|
Water in heating systems |
Water quality according to local standards |
|
Water with glycol |
Maximum viscosity = 10–50 cSt ~ solution of water 50 % / glycol 50 % at -10 °C |
Operation range
|
Parameter |
MEGA |
|
Maximum flow, Q |
10 m³/h |
|
Maximum head, H |
10 meters |
Maximum operating pressure
PN 10: 10 bar / 1.0 MPa.
Minimum inlet pressure
In order to avoid cavitation noise and bearings damage during pump operation, the following minimum relative pressure should be maintained at its inlet port.
|
Inlet pressure |
Liquid temperature |
Inlet pressure of the pump |
|
≤ + 85 °C |
0.005 MPa |
|
|
≤ + 90 °C |
0.028 MPa |
|
|
≤ +110 °C |
0.100 MPa |
Pumped liquids
The pump is designed to pump pure and nonaggressive liquids without solids or fibers that can have a mechanical or chemical impact on the pump.
Water used in heating systems should meet the quality requirements of system water for heating units.
The pumps must not be used for inflammable or explosive liquids such as diesel fuel or petrol.
The pumps must not be used for aggressive liquids such as acids or sea water. If the pump is not operated during a cold season, take the necessary measures to avoid low temperature damages.
Using additives in a heat transfer medium with the density and/or kinetic viscosity higher than the water ones decreases the performance of the pump.
Never use the additives that can negatively affect the pump operation. In order to learn whether the pump can be used with a certain liquid, take into account several factors.
The most important are lime content, pH, temperature, and the content of solvents and oils.
The pump can be used for glycol and water mixtures at the level up to 50 %. See section «General instructions». Pumping of glycol mixtures decreases hydraulic properties of the pump.
(HS+AUTO)
(HD)
(BL)
Tags :
Model Master SD 25-8 130/ Master SD 25-8 180 Maximum flow (m³/h) 3.6 Maximum head (m) 8 EEI EEI≤0.21-Part2 Rated voltage 220-240V AC Rated current 0.55 A Frequency 50/60Hz Maximum power 70 W Design pressure 1.0MPa Noise ≤42dB(A) IP class IP44 Insulation class H
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
Power supply voltage 220-240V 50/60Hz, PE Motor protection No external protection required IP class IP44 Insulation class H Humidity(RH) Max. 95% System pressure 1.0 MPa Compliance CE/ GS/ EMC/ LVD/RoHS/REACH Environment temperature 0～+40℃ Temperature class TF110 Liquid temperature -30～+110℃ (Glycol up to 50%) Voltage/ Frequency 230V/50HZ Pump housing Cast iron Energy(EEI) ≤0.23-Part2
NO.1 Yanglin Road, Hi-tech Development Zone, 230088 Hefei, Anhui, P.R. China
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