Floor-Mounted Heavy-Duty Cabinet Centrifugal Fan (HTFC Series)

This is a box-type centrifugal fan featuring backward-inclined blades. The product consists of a low-noise backward-inclined centrifugal fan, motor, bearings, drive components, and a sound-attenuated acoustic cabinet. Depending on the installation location, 12 different inlet and outlet angle configurations are available to meet various installation requirements. According to different requirements for fire safety and general ventilation, it is divided into Type A and Type B. For Type A, the motor is mounted outside the cabinet. The fan is available in single-speed and dual-speed options. The dual-speed fan is equipped with a dual-speed motor to achieve two-speed control, satisfying users' performance adjustment needs for different operating points. The fan can also be fitted with a variable frequency motor and VFD controller to achieve variable frequency speed adjustment. This product has passed the high-temperature endurance test conducted by the National Fire Equipment Quality Supervision and Inspection Center in accordance with GA211-2009 High Temperature Test Method for Smoke and Heat Exhaust Fans, capable of continuous operation for over 60 minutes at a high temperature of 280°C. To suit hazardous environment requirements, the fan can be manufactured in an explosion-proof configuration with an explosion-proof rating of Ex d IIB T4, suitable for places with flammable and explosive gases. To meet different site noise level requirements, all fans can be equipped with silencers of various lengths, or the sound-attenuated cabinet can be constructed with increased panel thickness to reduce fan noise. The fan can be fitted with primary, medium, or high-efficiency (HEPA) filters to enhance air cleanliness; when configuring filters, actual pressure losses must be taken into account, and the fan cabinet length should be appropriately extended.

The HTFC(DT) series of fire ventilation fans are classified into Types I, II, III, and IV, where Types I and III are single-speed, and Types II and IV are dual-speed.

HTFC(DT)-A,B-I, II, III, IV-No.-(1-12)：

1. HTFC(DT)----Low-Noise Cabinet-Type Centrifugal Fans for Fire Protection and Ventilation

2. A denotes fire protection type; B denotes ventilation type

3. No--Impeller diameter in inches

4. 1-12----Fan position number

Diagram Showing the Numbering of Air Outlet Positions for Type A Cabinet-Style Centrifugal Fans

Diagram Showing the Numbering of Air Outlet Positions for Type B Cabinet-Style Centrifugal Fans

Cabinet Centrifugal Fan Dimensions & Overall Outline