Product Description:
The externally mounted A-type low-noise HTFC (DT) series fire and ventilation dual-purpose cabinet type centrifugal fans are divided into 12 specification series according to diameter, ranging from 9 # to 36 #, with an air volume of 1650-85855m3/h and a total pressure of 180-1068Pa. The HTFC-A low-noise cabinet type centrifugal fan has been continuously improved and developed and can now be divided into four types: I, II, III, and IV. Among them, I and III are single speed types, while II and IV are dual speed types.
The dual speed HTFC (DT) series low-noise cabinet type centrifugal ventilation fan series products are divided into two types: Type A and Type B. The type A has an electric motor installed outside the box. After high temperature resistance testing, it can operate continuously for more than 40 minutes under high smoke temperature greater than 280 ℃, achieving the purpose of fire prevention and smoke exhaust. After being equipped with a dual speed motor, it can be used for ventilation and air exchange at low speeds, as well as fire smoke exhaust at high speeds, making it a dual-purpose machine; The electric motor installed inside the box is of type B and is generally used for ventilation and supply.

Product Usage:This fan has the advantages of high temperature resistance, excellent performance, novel and compact structure, low vibration, light weight, and easy installation and use. It is an ideal product for ventilation, fire protection, and smoke exhaust in hotels, restaurants, auditoriums, theaters, basements, factories, mines, enterprises, office buildings, and other places. It is also an updated product for fire protection and smoke exhaust fans used in high-rise buildings. It has been sold well throughout the country and received high praise from users.

Main performance parameters of low noise HTFC-A/B series box type fan:

The main parameters of the dual speed HTFC (DT) series low-noise fire ventilation dual-purpose cabinet centrifugal fan are:

The external A-type low-noise HTFC (DT) series fire ventilation dual-purpose cabinet type centrifugal fan product consists of a low-noise forward leaning multi wing centrifugal fan, motor, bearings, transmission components, and soundproof box body. According to different installation positions, 12 different angles of air inlet and outlet positions are provided to meet the needs of users in different installation environments. According to different requirements for fire protection and ventilation, there are two types: Type A and Type B. Type A motors are installed outside the box for fire smoke exhaust, and have been tested for high temperature resistance by the National Fire Equipment Supervision and Quality Inspection Center in accordance with GA211-1999 "High Temperature Resistance Test Method for Fire Smoke Exhaust Fans". They can operate continuously for more than 60 minutes under high temperature conditions of 300 ℃; The B-type motor is installed inside the box for ventilation and air exchange. This product can be equipped with a dual speed motor to achieve two speed regulation, which can meet the needs of users for performance adjustment at different operating points. The fan can also be equipped with a variable frequency motor and a variable frequency controller to achieve variable frequency speed regulation. It is recommended to adjust the frequency pin between 25HZ and 50HZ
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