Brushless DC fans are usually available at three nominal voltages: 12V, 24V and 48V. If the system has regulated power supply in one of these, then a brushless DC Fan may be selected which will give the exact performance required, regardless of the AC input variables which plague AC fans.
Because the speed and airflow of a typical Dc Fan is proportional to the voltage supplied, a single product may be used to meet different applications by setting the supply voltage to what will give the desired airflow.
The voltage range that may be applied to the fan to assure satisfactory operation is dependent upon the individual fan design and may be as small as 10-14V for 12V units and up to 12-56V for 48V units.Because brushless DC fans has many advantages, such as energy saving, stepless speed regulation, quiet and long life, it has been widely applied in many new building projects, and is gaining more and more recognition and favor from the market.
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Product description
Feature:
1.energy saving
2.stepless speed regulation
3.quiet and long life
Specification:
Model
Bearing
Rated voltage(v)
Rated current
(A)
Rated
Nominal speed
(RPM)
Air flow
(CFM)/(m^3/min)
Air pressure
Noise
(dB)
Weight(g)
FS5015
sleeve/ball
5/12/24
0.08~0.35
0.75~3.60
3500~5000
3.75~5.55
0.10~0.15
5.15~7.35
0.20~0.28
28~33
30
FS5020
sleeve/ball
5 /12
0.09~0.35
0.65~2.64
3500~5500
3.5~6.5
0.09~0.18
11.85~23.56
0.46~0.92
32~43
33
FS6015
sleeve/ball
5 /12
0.09~0.35
1.08~2.64
3800~5500
3.8~6.8
0.10~0.19
12.35~24.50
0.48~0.96
35~45
32
FS7530
sleeve/ball
12/24
0.2~0.45
2.40~8
2500~3500
9.18~12.55
0
7.55~10.03
0
33~42
85
FS9733
sleeve/ball
12/24
0.25~0.8
4.20~13.2
2000~3200
15.05~26.33
0.42~0.73
6.23~10.88
0.24~0.43
35~52
95
FS12032
sleeve/ball
12/24
0.28~1.0
5.88~19.2
1600~2300
18.88~33.01
0
8.82~15.41
0
45~55
198
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Hardware lock companies need to strengthen patent protection
Recently, the case of Wenzhou General Lock Co., Ltd., which was infringed on the appearance of a motorcycle lock, finally came to an end. After mediation by the court, the defendant promised to stop producing and selling products that infringe the plaintiff Wenzhou General Lock Co., Ltd.
Wenzhou is known as China Lock Capital. In 2012-2015, “China Top Ten Lock King†Wenzhou Enterprise Zhejiang Zhongli Group Co., Ltd., Wenzhou General Lock Co., Ltd., Wenzhou Tianyu Industry and Trade Group Co., Ltd., Baodeli Industrial Co., Ltd. The list is famous. With the intensification of competition, the competitiveness of many lock companies comes from low cost. Due to the lack of independent innovation, imitation and plagiarism are common in the industry.
The winning GM locks have registered trademarks in 7 countries around the world, 95% of which are exported to more than 30 countries and regions such as the European Union, the United States, and Japan. There are 162 national patents, including 8 inventions, including utility models. 66 pieces. Zhao Fang, a general lock engineer, said that the phenomenon of infringement of the appearance of universal locks has always appeared in other companies. In the past, they always indulged infringements of other companies because of the long appeal time and the trouble of finding relevant evidence. Since last year, they have taken the initiative. Combating infringement.
Li Guorong, secretary general of Wenzhou Hardware Industry Association, said that there are more than 400 lock enterprises in Wenzhou, more than 100 in size, most of them belong to small and micro enterprises, and their innovation ability is insufficient, resulting in widespread product imitation. Therefore, the use of universal locks wins. Opportunity, advocate enterprises to strengthen their ability to innovate, encourage more enterprises to participate in the battle of patent protection, protect Wenzhou's own products, and strengthen Wenzhou locks.