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Help CenterGRAD Axial Roof Fan With CE
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GRAD axial roof fan with CE
Welcome to GRAD Group
Focus on ventilation fan more than 20 years
The characteristics
1,Wide range of application:DWT - I type axial flow roof fan, is suitable for the low pressure, large flow rate using
occasion.DWT - II type centrifugal roof fan, is suitable for small air volume, high pressure occasion.
2,High efficiency , low noise,Light weight, corrosion resistance, smooth operation and
long service life.
3,Medium temperature less than 60 °, excessive viscous substances are not allowed to
be contained in the gas, dust content is less than 100 mg/m3
4,Type more, can satisfy different occasions to use, can according to user needs to
provide other model fan.
5, Access to the national utility model patents and national outstanding patent award
Model description
1,Axial flow fan diameter roof from 300-1800, a total of 17 kinds of models, the centrifugal roof fan diameter from 300-1000, a total of 9 kinds of models
2,Roof ventilation fan usually include impeller,air duct,rain cover,driving part, Anti-bird Net, Adjustable damper,etc
3, DWT - 1 type of roof fan with motor direct drive, also can according to user needs to change to belt drive
4,When exhaust air pressure is higher than 600 pa adopt centrifugal or centrifugal axial fan, Pressure is between 400 and 600 pa using mixed flow fan, Pressure is less than 400 pa by axial flow ventilator
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.
2,Total Pressure or Static Pressure.
3,Voltage and Frequency.
4,Medium Temperature and Density.
5,Altitude of Operation Place.
product display
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
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.
GRAD sincerely welcome all friends visit
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