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BDTW-1 Roof Ventilation Fan; Fiberglass roof fan

NegotiableUpdate on 05/26
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Overview
BDTW-1 Roof Ventilation Fan; Fiberglass roof fan, environmentally friendly: no need for electricity, continuous operation * * *, no noise, no sparks, explosion-proof. Weather resistant characteristics
Product Details

BDTW-1 roof ventilation fan fiberglass roof fan

When air flows, if it encounters sharp obstacles, it is prone to turbulence. Although turbulence is different from vortex flow, it can also produce noise or high-frequency whistling, which can cause efficiency loss for centrifugal fans.

1. Characteristics:

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Environmental Protection: No need for electricity, continuous operation***No noise, no sparks, and explosion-proof. Wind and rain resistance: The blades are arc-shaped, with gaps between each blade. When rotating, the blades complement each other to fill these gaps. A large amount of rainwater is thrown out along the pitch line of the circle, while a small amount of rainwater flows down the roof along the blades and does not flow into the turbine. At the same time, the rotating turbine allows air to flow out through the gaps between the blades, blocking rainwater from entering.

Operating device: using horizontal ball bearings, which are enclosed and always self-lubricatingEnable it to rotate in gentle winds at speeds below 3.2 km/h.

Dustproof: The turbine exhaust fan isRunning continuously for 24 hours, dust is not easily attached, and even if cleaning is needed, it is very convenient.

BDTW-1 roof ventilation fan fiberglass roof fan

Repair cost: The rotary exhaust system does not require repair or replacement of partsChoosing a motorless turbine fan is a guarantee for investors as it provides excellent quality.

Lightweight: The turbine exhaust is installed on the roof and the base together, with a total weight of approximately15Kg/seat, quite lightweight, can be ignored when designing steel structure loads.

3. Application of DWT-I Axial Flow Roof Fan

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Suitable for ventilation and air exchange in medium and low voltage, high flow places such as warehouses, industrial and mining plants, power stations, stations, and sports venues.


4DWT-I type axial flow roof fan configuration
4.1. Standard Configuration
● Impeller; ● Motor; ● Machine casing (air duct, motor bracket); ● Fiberglass wind cap; ● Safety net.
4.2. Optional parts and accessories (indicate whether to purchase when ordering)
※ Manual or electric regulating valves; ※ Control box; ※ Self hanging blinds; ※ Bird proof net.

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5Processing technology of DWT-I axial flow roof fan
5.1. Fan impeller: The cross is made of steel stamped and formed by hydraulic pressure, and the blades are made of aluminum alloy stamped and formed by hydraulic pressure. The blades are riveted and assembled with the cross. The impeller has undergone static and dynamic balance correction, and the balance accuracy is not greater than G5.6 level.
5.2. The outer cylinder flange is made by integral flanging and spinning, and the air cap is made of fiberglass one-time molding.
5.3. The explosion-proof and anti-corrosion fan casings are made of fiberglass and formed in one go.


6. Performance parameter table of DWT-I axial flow roof fan

Product Name

Specification Model

Impeller diameter(mm)

Rated voltage(V)

Rated speed(r/min)

Impeller angle

Airflow (㎡)/h)

Full pressure(Pa)

Explosion proof roof ventilation fan

BDW-1-2#

200

380/220

2800

43°

1230

112





1430


618

64


BDW-1-2.8#

280


2800

35°

2921

190





1430


1510

105


BDW-1-3.15#

315


2800


3.74

218





1430


1998

141


BDW-1-3.55#

355


2800


3367

246





1430


2188

160