• Airflow Range:‌ 329～57,200 m³/h (194～33,668 CFM)

• Static Pressure:‌ up to 650 Pa (≈ 2.61 in.WG.)

• Power:‌ 0.18~11 KW

• Drive Types:‌ Direct / Belt Drive

• Mounting Types:‌ Rooftop

• Applications:‌

• Rooftop Ventilation

• Explosion Proof Air Supply & Exhaust

• Fire Smoke Exhaust

More descripition:

As a leading ventilation and smoke exhaust fan manufacturer in China, with years of successful experience in professional research and development of centrifugal fans, SHUANGYANG FAN has absorbed the advantages of similar international products, based on European and American technology, humanized design, and through a large number of precise calculations and repeated tests of model fans and physical products, manufactured, developed, and improved the low-noise Rooftop Centrifugal Exhaust Fan - RTC with advanced technological equipment. This fan series has the advantages of novelty, beauty, high efficiency and energy saving.

1. Performance characteristics

a. High efficiency and low noise: The fan uses CFD flow field simulation technology, which has been repeatedly tested and verified through models and physical fans, and has been proven to have significant characteristics of high efficiency and low noise in actual use.

b. Smooth operation and long service life: This fan has a small moment of inertia and high dynamic balance accuracy, reaching the G2.5 balance level of ISO1940 standard. The whole machine has undergone mechanical performance testing, vibration testing, and aerodynamic performance testing to ensure smooth and reliable operation.

c. Widely applicable: This fan can be manufactured as explosion-proof, corrosion-resistant, and high-temperature resistant according to usage requirements. It is suitable for situations where the air contains cooking oil fumes, workshop volatile engine oil, dust, or organic solvents.

d. Beautiful appearance: This fan has a smooth design, symmetrical proportions, fine craftsmanship, low wind resistance, and has obtained national patented technology.

e. Quality level: This product has been appraised by the National Fire Equipment Quality Supervision and Inspection Center and is considered a leading product in China.

2. Structural features:

The fan is composed of impeller, motor, casing (hood, motor cover), collector, gravity check valve (optional) and other components.

a. Fan impeller: The Ouda series high and low-pressure aluminum alloy impeller is optimized and designed using CFD flow field simulation technology. The front plate, rear plate, and blades of the impeller are processed through multiple processes such as stamping and forming, resulting in a compact structure with high air volume, low noise, and high efficiency. The material of the shaft sleeve is cast iron.

b. Fan supporting motor: Adopts protection level IP54 and insulation level F motor. When the isolation class is H, the fan can operate normally under high temperature for designated time according to fire proof requirement. Explosion proof motor, two-speed motor and frequency conversion motor also optional according to specific project.

c. Fan casing (hood, motor cover): High precision spinning forming equipment is used to ensure the roundness of the fan casing. The casing design ensures sufficient rigidity, and the structural strength of this fan is designed for extreme outdoor wind speeds of 50m/s.

d. Collector: Adopting a streamlined design, the front plate of the impeller is closely matched with the collector, thereby reducing the noise and energy loss caused by turbulence.

e. Gravity check valve (optional): The frame is made of galvanized sheet, the louver material is aluminum alloy, and the louver adopts linkage opening and closing. 

f. Damper (optional): Optional smoke exhaust fire dampers are available, and both the fan and smoke exhaust fire damper have passed the national fire protection product type test.

g. Bird proof net: Made of stainless steel wire mesh, it prevents birds and animals from entering the fan through the air outlet when the fan stops running.

h. Fan disassembly and maintenance are convenient and safe: The motor protective cover adopts a buckle fixing structure. Disconnect the power supply, open the motor cover, and you can repair it.