DWT-IV No Power Roof Ventilation Fan (Wind Driven)

1. Properties and Applications

1). Full stainless steel material, rot proof, low weight.                                                                                                                                       

2). Motorless, no noise no spark.

3). Good venting effect, turbo patent technology.

4). Patent driving technology, with qualified driving bearing.

5). Used for a long time above 15 years.

6). We can produce the basic casing according to customer’s dimension.

2. Performance Parameters Table

Note:
1. The general annual average wind speed is 3.4m/s (three wind), if there are more than 5 degrees temperature difference between indoor and outdoor thet should be appropriate to increase the number of installed.
2. The better use effect is the height of the building below the 6 meters.

3. Installation Guide

4. Product Details  

5. Our competitive Advantages 

1) Cost advantage  

We have our own workshop, metal processing workshop and many other advanced machines. Key production parts are manufactured by ourselves.

2) Technological advantage

Our products are developed by Shanghai jiaotong University for technical support.

3) Substantial experience and good service

We professionally produce motors and fans for more than 7 years. We can supply high quality products and services.

4) High cost performance

We have cost advantage, technological advantage and substantial experience. So our products have high cost performance. You can take the same cost purchase more better goods, or spend less for the same product.

6. Order Requirement

We will appreciate it a lot if you can offer us your product performance requirements and operation environment, so that we can customize optimal production to meet your every requirement.

1) Air volume,Speed

2) Total Pressure or Static Pressure

3) Voltage and Frequency

4) Medium Temperature and Density

5) Altitude of Operation Place

7. Workshop and facilities

Have a glance at our Manufacturing facility

We have our own high speed punching machine, digital control machine, grinding machine, automatic coil winding machine, injection machine, and many other advanced equipments. Key production parts are manufactured by ourselves.

For more information, welcome to visit our company at any time.

8. Classic cases

Application In Top-grade Civil Building

9. Approvals and certificates

Our company is a leading manufacturer of ventilation fans in China. We specialize in the fans for more than 7 years. The following certificates are our latest version, including ISO9001:2008, CE certificates, utility model patent certificate and certificate of design patent. We also got many honorable titles, such as technology Innovation enterprise & integrity management enterprise.

10. Warranty

Whole ventilation equipment will be guaranteed with replacement or repair within one year.

All our patent parts will be assured with old for new service in entire lifetime free of charge.(User damaging is not included)

11. Delivery & Payment Term

1) Delivery time: 3-7 days for samples;    25-35days for MOQ order after received the deposit

2)Transportation: All available shipping ways could be applied, by courier, air or sea.  Appointed shipping company or our own forwarders all could be used in shipment. Full-way tracking the cargos for you before the goods arrive.

3) Loading port: Ningbo/Shanghai

4) Payment Term: T/T: 30% deposit in advance, 70% balance before container loading

                                   L/C:L/C at sight

                                   As negotiation

12. Contact Information

Thanks for your attention, if any questions, please contact me, B. Regards/Tracy