FS9225 Shutters Window Shades
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Model No.: FS9225
Waterproofing Rate: IP44
FS9225 waterproof and rainproof blinds
Until the tang dynasty, the folk were represented by mullion Windows. In the Ming dynasty, there was a great development in the mullion Windows. In the song dynasty, a variety of mullion Windows were made on the brick tower, and in the Ming dynasty, there were mullioned Windows, and there were many examples, which were the forerunners of the shutters.
The window lattice, not a few patterns, not horizontal bar is vertical bar. The horizontal bar is the prototype of the shutter. Strictly speaking, there is a difference between the mullion window and the shutters. The Venetian blinds are made of slanted Windows, which are not visible in the horizontal direction and are visible only on the inclined plane. In ancient times, people made wooden lattice Windows, which were mainly used to achieve the purpose of ventilation and ventilation.
Through various modifications, the shutters have been integrated with many functions and are suitable for all kinds of buildings.
The FS9225 waterproof and rainproof blinds detail:
System impedance of equipment
In accordance with the internal construction of the equipment to be called. The resistance will appear when passing air through the equipment
This will cause reduction of stationary pressure during the ventilation and is called the system impedance.
Consequently,it becomes necessary for us to give stationary pressure value higher than the impedance for performing ventilation to the equipment system impedance can be given using the following formula:
Δ P=Reduced pressure(mm-H2O)
Δ P=KQn K5 Constant
N=index to be determine by air flow
N=2:Turbulent flow (Normally n=2)
The constant K here cannot be determined unless measure it by physically equipment.
Selection of the Fan
The selection of fan is done in according with following steps:
a) .Estimate the heat value (kw)of the heat source.
b) Determine the allowable temperature rise value Δ T
c) Assume the approximate ventilation volume in according with Formula(1)
d) Assumption of system impedance based on the ventilation of internal equipment of past data
e) Decide on the fan by referring to the Characteristic curve in Figure 2 from your catalog
f) Determine the adaptability of the fan by physically installing it is the equipment and measure the air temperature rise value Δ T or draft volume Q. if draft volume Q is insufficient, It is caused by the high system impedance , so it advisable to replace it with a higher quality fan
Measurement and measures against the Noises
Measurement of Noises
Measure it at 1.0 meters from the machine plane (at the central line of the air inlet )according to JIS-B8330(A characteristics)
Measures against Noises.
Although our fan motors are designed with special consideration of noises,sometime,it still can be affected by the user` s machine design to a large extent , so our attention is drawn to the following points:
a. Keep some distance between the object to be cooled and the inlet of the far. (Figure a -1)
b. When fittings are used ,pay attention not to cross each other with a spring .(Figure b -1)
c. When more than two fans are used, please keep then apart.(Figure c -1)
d. When finger guide is used, please keep it separated from the fan (We have kept some for this purpose.)
Technical information of fan Motor
Measurement of air volume and static pressure
In our company we have been measuring the air volume using the multi - nozzle chamber air volume measuring device of automatic recording type,which is in conformity with the highly reliable AMCA specifications(USA).
The error rate is below 1% theoretically.(based on AMCA),Also it is possible to measure the characteristics of the suction side as well as the blowing side ,( 54148520, 54146766, 54145670, 54144285, 54144272, 54142882, 54141828, 54141732, 54140759,the values in catalog show the characteristics of the blowing side .)
Operation principle of measuring device
(in the case of blowing characteristics)
Principle of measurement
Determine the internal capacity of the chamber so that the speed of the air inside the chamber becomes less than 1m/sec,and let the air inside the chamber become stationary and measure the static pressure of with the static pressure:(+)impressing
Pressure;(-)suction pressure and the pressure difference between the front and the back nozzles (for air volume),and by means of the computing section output the result on the coder.
Air volume =60xcx/40D2 2g/r Δ pn(m3/min )
But C=Flow coefficient (variable due to wind speed )of nozzle
D=diameter of nozzle
R=air density =1.293*273/273=1*P/760kg/m3
(t=temperature C,P=air pressure mmHg)
ΔPn=Nozzle differential pressure mm-H2O
Stationary Pressure Δ P=PA-P
Mm-H2O(PA=Air pressure in Chamber A,P=Atmosphere (pressure)Conversion Formula of Air Volume and Stationary Pressure P(inch -H2O)=0.0394P(mm-H2O)
Guide to search of fan motor
Computation of Required Draft Volume:
It becomes necessary to determine the draft volume when be force the equipment to be air cooled.Although it is advisable to option the air volume required formula:
Q=Airflow required in m3/min
KW=Heat dissipated in kilowatt
ΔT=T2-T1(Allowable temperature rise)in 0C
(T1=Air temperature at air inlet)
(T2=Air temperature at air outlet)
For example:6.25m3/min of airflow is required for a system that disspates 1KW and allow 80C(ΔT) temperature rise.
Frame/Housing :Aluminum&Plastic UL 94v-0
Impeller :Plastic PBT(UL 94v-0)
Bearing System :Ball beating or sleeve bearing
Insulation Resistance : Above 100MΩ,DC500V
Dielectric withstand voltage : AC 700V one second
Operating Temperature :Ball bearing : -300C~700C
Sleeve bearing :-100C`700C
Life expectancy :Ball bearing :over 50,000hr(At250C)
Sleeve bearing :over 30,000hr(At 250C)
We are professional cooling fan manufacturer. We Produce and sale a wide range of cooling fan
items according to the needs of our customers!
Many of our clients work with us from the initial idea, through design and manufacturing to the finished product,
while some utilize our manufacturing expertise alone. We have a dedicated team of talented engineers with strong
experience. Working with our strategic partners closely, we can deliver a wide ange of products.
Why choose us:
1. Your inquiry related to our products or prices will be replied in 24hrs.
2. Well-trained and experienced staffs to answer all your enquires in fluent English.
3. OEM&ODM, any your customized fans we can help you to design and put into product.
4. Distributorship are offered for your unique design and some our current models.
5. Protection of your sales area, ideas of design and all your private information.
1. Payment: By T/T, 50% deposit in advance and the balance paid before shipment.
2. Lead Time: Within 15-20 days after the order is confirmed.
3. Sample policy: Samples can be ready in 3-7 days once payment received.
4. Shipping freight are quoted under your requests.
5. Shipping port: Shenzhen, Mainland China.
6. Discounts are offered based on order quantities.
1. Quality assurance: 2~3 years warranty time. All the products will go through checks
during production ,the finished products 24 hours test.
2. Your inquiry related to our products or prices will be replied within 24 hours.
3. Protection of your sales area, ideas of design and all your private information.
4. Choose the cheapest and safest shipping company.
5. Track the order until you get the goods.
If you have any questions, please feel free to contact us , Due to the time difference, you will receive our reply within 24 hours except holidays. It is our honor to provide you the appropriate solutions if you have any problems about our products.
If you are satisfied with our products and service, welcome to leave us a positive feedback. Your kind good comment is a great support to us .
We will strive to provide the best service and bring the highest satisfaction to all of our customers.
Happy shopping from ShenZhen Fu Sheng Electric Co.,LTD!
Shenzhen Fu Sheng Electric Co.,LTD.is professional manufacturer of DC/AC/EC containing brush less axial compressor,cross current flow,centrifugal cooling fan,it is set up in October 2004 located in the beautiful scenery and developed economy,Shenzhen City,Guangdong Province.We have been working hard in the industry field and the enterprise has been a considerable scale.Because of the advantages of the business philosophy,has been a good product price and quality service to win the market,To win the trust of customers.Our products are widely used in IT field,Sports equipment,ventilation equipment,welding equipment, power systems,medical electronic equipment,machinery and equipment etc.Our company has been producing according to ISO9001-2000 international quality management system,Besides,we lead in environmental management system now.Products pass a number of countries`s security certification,such as:UL/CUL/TUV/CE/CCC and so on.
Our company holds the management philosophy of "customer first, quality first".To be realistic,the principle of good faith has been a partner of the affirmative.To establish a good reputation.The company will take a higher platform,the design and development of more top technology.To meet the needs of customers.Keep trying,keep moving forward.Welcome friends to come to consult,negotiate!My company will be dedicated to serve you!
- Company Name: Shenzhen Fu Sheng Electric Co., LTD.
- Representative: Chan Zhong
- Product/Service: Axial Fan , Centrifugal Fan , AC/DC/EC Fan , Cooling Fan , Cross Flow Fan , Radiator Fan
- Capital (Million US $): 400000RMB
- Year Established: 2004
- Total Annual Sales Volume (Million US $): US$1 Million - US$2.5 Million
- Export Percentage: 11% - 20%
- Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
- No. of Production Lines: Above 20
- No. of R&D Staff: Fewer than 5 People
- No. of QC Staff: Fewer than 5 People
- OEM Services Provided: no
- Factory Size (Sq.meters): Below 1,000 square meters
- Factory Location: No.1,Block3,Hongchang,Shunchang Street,Pinghu,Longgang District,Shenzhen,China
- Contact Person: Ms. Betty
- Tel: 86-0755-84660060