Product Introduction
The DC Centrifugal Exhaust Ventilator is a high-performance exhaust fan engineered for effective removal of stale air, fumes, and particulates in enclosed or industrial spaces. As a dedicated centrifugal exhaust fan, it utilizes DC power for consistent radial expulsion, achieving superior ventilation fan efficiency with robust pressure handling. This high pressure fan is tailored for applications in workshops, kitchens, or fume extraction systems, operating as a low noise fan to minimize auditory impact while ensuring rapid air renewal. Its streamlined design supports easy ducting and energy optimization, making it a practical choice for facility managers needing a reliable centrifugal fan that enhances air quality and safety in demanding exhaust scenarios.

DC centrifugal exhaust ventilator technical parameters:
|
Model No. |
Rated |
Operation Voltage |
Rated |
Rated |
Rated |
Air Flow |
Air |
Noise |
|
VDC |
VDC |
A |
W |
RPM |
m3/h |
Pa |
dBA |
|
|
EN-B280-H050-D024-B01 |
24 |
18~32 |
7.80 |
188 |
2450 |
1930 |
740 |
75 |
|
EN-B280-H050-D048-B01 |
48 |
36~57 |
3.90 |
188 |
2450 |
1930 |
740 |
75 |
Outline Drawing:

Performance Curve

Connection
|
DC Wire |
|
|
Color |
Function |
|
Red |
024/ 048/ 310VDC |
|
Blue |
GND |
|
Yellow |
0~10VDC/PWM |
|
White |
FG |
This outline drawing illustrates the structural essentials of the DC Centrifugal Exhaust Ventilator, including exhaust pathways and flange connections for secure venting installations. As an effective exhaust fan, its centrifugal fan configuration features a radial outlet optimized for high-volume discharge, with dimensions accommodating standard duct sizes around 200mm for versatile placement. The schematic details the impeller and motor alignment, crafted to bolster high pressure fan output while adhering to low noise fan guidelines through balanced components. DC electrical ports are explicitly shown for straightforward integration into ventilation fan networks. Utilize these annotated specs for installation blueprints, particularly when framing this centrifugal exhaust fan as a solution for systems requiring precise airflow direction and minimal operational disruption.
A detailed close-up of the DC Centrifugal Exhaust Ventilator highlights its reinforced discharge nozzle, designed for focused expulsion in high-demand settings. This exhaust fan's image accentuates the curved radial impeller, engineered to generate sustained pressure for efficient contaminant removal, complemented by a durable casing that upholds low noise fan standards. Observe the integrated dampers and mounting reinforcements, which prevent backdraft, positioning it as a superior high pressure fan for controlled environments. The view also captures the compact DC controls, facilitating variable speeds, making it an optimal ventilation fan in centrifugal exhaust fan applications like labs or garages where quiet, forceful air evacuation is key to maintaining cleanliness and comfort.

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FAQ
Question: What is "System Effect" in fans?
Answer: System Effect refers to performance loss caused by poor duct design (e.g., elbows too close to the inlet) which creates turbulence that laboratory ratings do not account for.
Question: What is fan "surge"?
Answer: Surge is an unstable operating condition in high-pressure, low-flow regions where airflow reverses cyclically, causing severe vibration and potential damage.
Question: What are the types of fan shaft seals?
Answer: Common types include labyrinth seals (general non-contact), packing seals, lip seals, and mechanical seals (for strict zero-leakage requirements).



