Welcome to D-FAN !

Company News:
About Us
Product Categories

Address:LiShi Industrial Zone, QiaoLi Village, ChangPing Town,DongGuan City, GuangDong 523586, China
Tel: +86-769-83660708
Fax: +86-769-83660718
Email: info@d-fan.com.cn


Chiefly Choice co.,Ltd.
Add: 3rd Floor, NO.340 Kangning Street, Xizhi City, Taipei, Taiwan
Tel: +886-2-2692-6816
Fax: +886-2-2692-7030
Email:  james@chiefly-choice.com
Website: www.chiefly-choice.com

Korea Company: CHANG SHIN E&T
Add: #1113, Hanshin IT Tower,272,Digital-Ro, Guro-Gu, Seoul, Korea
Tel: +82-2-6093-6788 
Fax: +82-2-6093-8972
Phone: +82-10-6656-0330
E-mail: cs@csfan.co.kr
Contact: Junhong Kang(Mr. Kang)

      Guangzhou Office
      Tel: +86-20-85651751
      Fax: +86-20-38669584
      Room 909Guaner Yongtai building, Congyun Road No.810,
      Baiyun District of Guangzhou,Guangdong,China

   Add: 603#,NO.395 Tangdenan Rd, Tianhe District,
    Guangzhou, China


You are here:Home > news

Waterproof Cooling Fan The quality of how to distinguish?

Time:2014-11-6 Click:427Times

I believe that many "Waterproof Cooling Fan" of buyers and cooling fan manufacturers are aware, oil-bearing and ball bearing cooling fan, that first of all we start with the bearing identification, the lower the price of oil-bearing turn voice is small, and some manufacturing providers within the oil-bearing plus Teflon, making the "Waterproof Cooling Fan" also has a ball bearing reliability, and then sell high. Ball bearing fan noise ratio of oil-bearing, the price is also relatively expensive, but more reliable, universal life longer than the oil-bearing. If the five-speed fan blades and seven identical ventilation seven blades will be greater. "Waterproof Cooling Fan" The higher the speed, the shorter the life of the corresponding noise is greater. Further, the thicker the fan blades, the greater the blade angle, the pressure is greater. Inlet angle blades (45 degrees maximum) is also one of the important factors determine the amount of ventilation fan. If start from the design, preferably also the air flow at the inlet and outlet to increase the amount of rotation of the secondary air flow channel.


Tel: +86-769-83660708

Fax: +86-769-83660718


URL: /eng/

Address:LiShi Industrial Zone, QiaoLi Village, ChangPing Town,DongGuan City, GuangDong 523586, China

Follow Us

Main Products: DC Fan|Cooling Fan|AC Fan|Axial Fan|Cross Flow Fan|Exhaust Fan|Blower Fan|DC Axial Fan|DC Cooling Fan

Copyright©2014, DONGGUAN XINGDONG ELECTRONICS CO., LTD., All Rights Reserved. Tel:+86-769-83660708,,Fax:+86-769-83660718 E-mail:info@d-fan.com.cn

XML 地图 | Sitemap 地图