wall mounted square exhaust fan/ventilator fan

The brief introduction for  Wall mounted Negative pressure exhaust fan

1. The draughts are often either used in the ends of air conditioner,or mated with ventilating pipe disk.

 2. The draughts have two types:single layer draught and double layer draught.

 3. The draughts are made of aluminum alloy,their surfaces are treated with anode oxidation or baked paint,static plastic spraying.

Draught angle can be adjusted in 0°c-90°c

Draught can be mated with adjustable valve or filter net.

The specification form:

 Application

  Intallation Proposal

1. The fan should be installed on the direction of the side wall or gable of the greenhouse, if the fan must be installed on the upwind side, the total flow of ventilation design at least 10 fold increase.

2 the distance between the exhaust port of the fan and the adjacent obstacles (such as the wall of a building) shall be 1.5 times larger than the diameter of the fan impeller.

3 wind turbine design units, including more than 1 suggestions with double speed motor drive, in order to more conveniently and flexibly adjusting the ventilation flow.

4. The design of the wind turbine units for multiple, suggest all the wind turbines at regular intervals into groups of 2 or 3, in order to control the operation and the fan units, according to the actual needs, adjusting the ventilation flow and keep roughly uniform throughout the greenhouse gas.

5. Fan lateral due shutters to prevent downtime when air flow or pests and dirt intrusion people. Fan applied in medial side door cover, to prevent human and sundries in the contact of the moving parts. If a guard net to moving parts of distance within 100mm. The protecting net steel wire diameter should not be less than 1.5.mm, orifice shall not be greater than 13.mm. if a guard net to moving parts over a distance of 100 mm, can use the diameter 2.7.mm wire netting, orifice size maximum up to 50mm.