Roof Ventilation, Roof Exhaust Fans

• Material: Blade Material: Stainless Steel
• Usage: for Experiment, for Air Conditioner, for Manufacture, for Refrigerate
• Flow Direction: Axial Flow
• Pressure: AC
• Certification: UR, ISO, CE, CCC
• Application: Hotels, Garment Shops, Building Material Shops
• Model NO.: BDL-
• Color: According to Customer′s Demand
• Transport Package: Plywood Package
• Trademark: Beideli
• Origin: China
• Production Capacity: 60000 Set/Sets Per Year

Product Description

Product Description

 

 

Type instruction

 

(1)The axial roof ventilator have 17 models of Φ300~ Φ1800mm with the diameter varies fromΦ300 to Φ1000

mm of 9 models.We can provide other models for the clients' different requirement.

(2) The structure of the fans refers to the whole installation drawing. This series of fans consist of impellers, ducts, rain cover, driving components, loose-leaf air doors and safety net.

I. Characteristics

Various models, large application scope: 2 models are available according to different pressures, air flow and noise requirement:a. Axial roof fans: model DWTI is for medium and low pressure, large volume condition. Its design can be changed into dual-reversible type with the same efficiency (national patent).b. Centrifugal roof fan: two models: DWTII and DWT-III. It is applied to provide high pressure while low air volume. 

High-efficiency, low-noise: This series uses CAD software, after optimizing design and research, its design has been rewarded patent of utility model and national outstanding patent. Its design adopts different rotate speeds, angles and impellers with the same diameter to satisfy different conditions. In this way, the fans match with the whole system and save energy and bring down noise.Light, high-strength, corrosionresistant: The impeller has different material types for various mediums,

 which encompasses ABC (engineering plastics), FRP (glass fiber reinforced plastics) and aluminum alloy sheet. The centrifugal fans are applied for high pressure conditions and the surface of impellers is galvanized & plastic sprayed, lowering its weight and enhancing its corrosive resistance. 

4. Stable operation, long-term service: little inertia, precise balance, stable operation make the fan's performance standard higher than its competitors. 

Large applying scope: This series fans can be made into explosion-proof, retardant, anti-aging type, etc., for ventilation of the conditions of flammable, explosive and corrosive air .

Elegant appearance: The rain cover is made of FRP with external surface of imported resin film. Its curve is smooth, elegant and practical. It can also be modified by plastic sprayed (PVC) after galvanization.    

7. Applying condition: The medium shall not exceed 60°C. No adhesive drifts, no exceeding 100 mg/m3 dust in the air. As for the high temperature medium, we provide fire-fighting exhaust fans (national patent) for the roof fans. 

Product Parameters

schematic diagram of roof ventilation fan 

 

 

Application

Packaging & Shipping

Usually we use plywood package or naked package. Some of the products like fan coil unit or table tennis board have standard carton package. The shipping terms are LCL, 20' container, 40' container

 

Company Profile

Related Products

 

Why us

Before-sale services:   

(1) Tell customers how to use our products and matters needing attention.

 (2) Guide customers to choose the best and economic product, recover the investment within short time.  

 (3) Site inspection if you need. 

 

In-Sale services:   

(1)Quality control must be inspected strictly.  

 (2)In accordance with the agreements stipulated in the contract.   

 

After-sale services:   

(1) If the project needs our installation guidance, we can send our engineer and translator. We can also send customers installation video to teach them how to fix and operate with 

our product.  

(2) Usually, our product warranty is 18 months after leaving factory or 12 months after installation. within this months, all parts broken will be responsible for our factory.

(3) Regular contact with customer, consult with the customer feedback, come true with 

the customer's two-way communication.

1 professional service, have more than ten years experience.

2.Even traders, but we are more professional than manufacture, as we put all attention to service our clients. and we make 100% tt to factory ,then factory give us cheaper price than they offer directly to foreign clients.

3. Flexible payment term: Both TT and LC at sight can be choosed
4. Help client to find matching grade quickly and precisely, Professional Technology Service Sale Team
5. Convenient Transportation, near to Qingdao Port; 
6 Provide photo and video shooting services during the shipment, so that you can know the shipment situation at any time

Shandong Beideli HVAC Equipment Co., Ltd. is located in Zibo City, China. Our company is near to Qingdao City and Jinan City, with convenient sea and air transportation. With more than 8 years' development in the HVAC industry, we have won a high reputation in the field, integrating the design, production, and service. Our product range consists of air diffuser, air ducts, air grills, ventilation system and related products.We have the ability to produce a wide range of products with various designs and sizes. Our products are manufactured from high quality base materials such as aluminum, plastic, metal and wood. Our products are suitable for a wide range of applications including ceiling, side-wall, flooring, base board, and commercial industry installations. We has all kind of advanced equipments for press forming machine, injection machines, automatic powder coating line and automatic feeding line. Besides, We also have a tooling shop, which is capable of making tooling for press metal, casting and plastic injection molding. So we can make customized design and customized size to fulfill the clients' request.
With rich experience in making HVAC parts and doing OEM for overseas customers,we are able to make the products meet your specifications.
We never overs tress credibility when building friendships with our customers. We hold the belief that we should never boast what we have but should always strive to become even better.

FAQ

A) How could I get a sample?
We do not provide free sample, if you are interested in our products, please contact our customer service, she can tell you the details of the sample.

B) Sample time?
Existing products: Within 15 days;

C) Whether you could make our brand on your products?
Yes. We can print your Logo on both the products and the packages if you can meet our MOQ.

D) Whether you could make your products by our color?
Yes, The color of products can be customized if you can meet our MOQ.

E) How to guarantee the quality of your products?
1) Strict detection during production.
2) Strict sampling inspection on products before shipment and intact product packaging ensured.