Wholesale low price agricultural equipment air inlet used in chicken shed green house black color 

Made of high quality plastic and stainless steel ,Huabang utomatic Curtain –like Ventilator gives you a stable and flexible experience in use .It has an appearance of width 600mm,height 320mm,and thickness 160mm .It can be closed tightly and opened flexibly.There are nets on the outlet in order to prevent birds. There is polystyrene board inside .It is applicable to standard livestock and poultry house .

Material of each part :

Frame :Plastic ultraviolet-proof material with long life span ;inside the ventilation door there are nets made of polystyrene foam .

Pulley Wheels :patent design adopted ,encounter little friction resistance .

Springs :stainless steel springs ,long life span with no rusted.

Pulley Accessories :rigid design adopted,accuracy assured.

Features :

 It can be opened at any specific degree from 0°to maximum 108°.

 Ventilation will be even and smooth when the inlet window near the engine is opened narrowly ,while the one far From the Madding Crowd the engine is opened wide .

The opening and closing of the inlet window is controlled under plastic wheels which encounter little friction resistance .

The springs and whole framework are stable and durable.

The ventilator can be controlled under automatic mode or manual mode .When you set it to automatic mode ,the microcomputer will control the opening level of inlet windows through electric engine according to the pressure value you set to the poultry house .Under manual mode ,you can control the which in accordance  with  pressure meter to set it to the value you want.