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Low-noise axial fans of the NTA-TZA (AC/EC) series

The NTA/TZA series of silent axial fans is widely used in heating, ventilation, air-conditioning, and refrigeration systems. Depending on the specific equipment design and intended application, the following installation options are available: square panel mounting (type F), round diffuser mounting (type G), and square panel mounting with adjustable blades at the front end (type FB). These fans have been designed to meet the requirements of various challenging operating environments.

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Product Description

Material and operating characteristics

• Engine housing: high-quality aluminum alloy/electrophoretic coating
• Blade: High-quality aluminum alloy/electrophoretic coating (can be combined with high-strength and lightweight composite materials)
• Wheel hub: hub made of galvanized sheet metal + electrostatic spraying/electrophoresis
• Air duct: galvanized sheet + electrostatic coating/electrophoresis
• Mesh coating: high-quality steel wire + electrostatic spraying/electrophoresis
• Humidity: ≤ 98%
• Insulation class: H
• Degree of protection: IP66
• Operating mode: S1
• Altitude: ≤ 1000 m
• Applicable environment: -40℃ ~ +60℃
• The distance between the fan and the radiator ≥ 0.3 times the outer diameter of the impeller.
• The distance from the fan inlet ≥ the outer diameter of the impeller
• Distance from the fan outlet ≥ 1.5 times the external diameter of the impeller

Areas of application
The NTA/TZA series of silent axial fans is widely used in heating, ventilation, air-conditioning, and refrigeration systems. Depending on the specific equipment design and intended application, the following installation options are available: square panel mounting (type F), round diffuser mounting (type G), and square panel mounting with adjustable blades at the front end (type FB). These fans have been designed to meet the requirements of various challenging operating environments.

SILENT DESIGN
The wind turbine blade design features a curved tail fin with a serrated profile, which, combined with biomimicry and aerodynamic principles, effectively cuts through and smooths the airflow, thereby reducing noise.

TWO ENGINE SCHEMES
NTA(AC): Adoption of the asynchronous AC motor
TZA(EC): Adoption of a permanent-magnet motor with variable speed drive

WITH PROTECTIVE OPERATIONAL PROPERTIES
The motor’s protection rating is IP66, and the mesh enclosure prevents foreign objects from entering from the outside, enhancing the fan’s reliability and service life.

D DIRECT INSTALLATION
The motor is directly connected to the fan blades, which reduces energy losses during transmission and increases efficiency. The design is more compact, and installation is simplified.

Protection method: With thermal protection

Specially configured: Variable-pole dual-speed: 6/4, 8/6, 10/8, 12/8