I. Application and features

1. Application

DTF series fan can be applied to fire fighting and exhaust fume for various buildings. They are also used to exhaust fume and ventilation for buildings, civil air defense projects, subways, mines and tunnels.

2. Features

High efficient, energy conservation, stable operation, low noise, thermostability, and convenient installation. It is 2/3 the size and half the weight of centrifugal fan with the same air volume. The mounting mode can be vertical, horizontal and suspended.

This type of fan is equipped with special motor cooling system: built-in air-cooled motor

The type can be horizontal or vertical;Power supply:380v50hz

Advanced pneumatic blades (forward or backward) reduce noise at 8-10 dB (A), and power 6%

When the temperature of the main air duct medium is 280 ℃, it can run continuously for more than 30 minutes; when the temperature is under 150 ℃, it can run under long-term continuous operation.

applied with standards jointly issue by Bureau of Technical Supervision and the Ministry of Construction as follows:

Code for fire protection design of high -rise buildings (GB50045-95)

Code for fire protection design of garage and parking （GB50067-97）

The group has passed the test from state fixed fire extinguishing system and Fire Retarding Component Quality Supervision, Inspection center. And has obtained the "Registration Certificate of Fire Fighting Product in Shandong Province" issued by fire department of Shandong Provincial Public Security Bureau.

Four series models：① single speed under normal pressure; ② two speed under normal pressure; ③ single speed under intermediate pressure; ④ two speed under intermediate pressure;⑤single speed under low pressure

II. Model

Model [impeller diameter = machine number×10 (cm)]

I—normal pressure; Ⅱ—intermediate pressure; SI—two speed under normal pressure; SⅡ—two speed under intermediate pressure; L—vertical type; W—horizontal type; LS—two-speed vertical type

BX—Integrated silencer