Product Introduction
ECNITY EC centrifugal ventilation fan is a widely used airflow solution designed to provide reliable ventilation in systems requiring controlled airflow and moderate to high static pressure. Unlike axial fans, which move air parallel to the fan shaft, centrifugal ventilation fans draw air into the center of the impeller and discharge it radially. This operating principle allows the fan to generate higher pressure, making it suitable for ducted ventilation systems with filters, dampers, or long air paths. EC centrifugal ventilation fans are valued for their stable performance, consistent airflow, and flexibility in system integration. They can be installed in various orientations and are commonly used as supply, exhaust, or circulation fans. With a wide range of sizes, pressure capabilities, and motor options, centrifugal ventilation fans provide adaptable solutions for industrial, commercial, and residential ventilation systems.
EC Centrifugal Ventilation Fan Technical Parameters:
|
Model No. |
Rated |
Operation Voltage |
Frequency |
Rated |
Rated Power |
Rated |
Air Flow |
Air |
Noise |
|
VAC |
VAC |
Hz |
A |
W |
RPM |
m3/h |
Pa |
dBA |
|
|
EN-B175-H040-E115-A01 |
115 |
90~135 |
50/60 |
1.72 |
110 |
4300 |
820 |
720 |
74 |
|
EN-B175-H040-E230-A01 |
230 |
184~274 |
50/60 |
0.86 |
110 |
4300 |
820 |
720 |
74 |
Outline Drawing
Performance Curve
Connection
|
DC Wire |
AC Wire |
||
|
Color |
Function |
Color |
Function |
|
Red |
+10VDC |
Brown |
L |
|
Blue |
GND |
Blue |
N |
|
Yellow |
0~10VDC/PWM |
Green/Yellow |
PE |
|
White |
FG |
||
One of the defining features of the ec centrifugal ventilation fan is its ability to maintain airflow stability even when system resistance changes. This makes it particularly effective in ventilation systems that include air filters, heat exchangers, silencers, or complex duct networks. Compared to axial ventilation fans, centrifugal designs are less sensitive to pressure fluctuations and can operate efficiently across a broader performance range.
Another important performance benefit is design flexibility. Forward curved centrifugal ventilation fans deliver high airflow at relatively low rotational speeds, while backward curved designs offer higher efficiency and improved energy performance. Radial blade configurations are well suited for handling air streams containing dust, grease, or particulates, making them ideal for industrial extraction applications.
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FAQ
Q: 1. Are EC centrifugal fans suitable for high-pressure systems?
A: Yes, EC centrifugal fans can handle higher static pressure compared to axial fans. They are suitable for ducted systems and filtered airflow paths. Proper selection is important to match system resistance. They are widely used in industrial ventilation systems.
Q: 2. What is the lifespan of an EC centrifugal fan?
A: The lifespan depends on operating conditions and maintenance. EC motors typically have long service life due to brushless design. Reduced mechanical stress improves reliability. Proper installation helps extend operating life.
Q: 3. Are EC fans suitable for energy-saving projects?
A: Yes, EC fans are commonly selected for energy-saving projects. They reduce power consumption during partial load operation. This helps lower overall system operating costs. They are widely used in energy-efficient buildings.
Q: 4. What is a centrifugal blower?
A: A centrifugal blower is a type of centrifugal fan designed to deliver higher pressure. It is commonly used in industrial ventilation and exhaust systems. The term blower is often used interchangeably with centrifugal fan. Design and performance depend on the specific application.
Q: 5. Can EC fans operate under partial load efficiently?
A: Yes, EC fans maintain high efficiency at reduced speed. The integrated controller optimizes motor performance. This allows airflow to match actual demand. Energy waste is minimized during normal operation.