الوصف

Air inlet window

Window: Plastic material with anti-ultraviolet.

Protection net: reasonable structure, Polypropylene material.

Nylon Pulley, Designed by patented organization, it is of rolling friction when turning on or off, low resistance and easy opening and closing.

Return Spring: High quality stainless steel spring, durable and rustless.

Pulley Accessories: Rigidity hard drawn wire round steel, ensuring accurately opening.

Rigidity connected will not be stretched, the surface is galvanized to prevent it from rust.

Air inlet controlling device

Operators watch the pressure meter in the house, and operate winch hands, until it reaches to the setting data.

Characteristics of air inlet

A, the open-close of air inlet adopt nylon pulley and rolling friction, the resistance is low, and inner is filled with *0mm polystyrene to ensure the warm keeping of the air inlet.

B, a group of air inlet could be opened at 3 angels which can realize ever ventilation.

C, to realize uniform ventilation, angle of inlet near the fan should be smaller than those far from it.

D, plastic contains the anti-ultraviolet raw material, which is durable, rustless and not out of shape, the technicals is delicate and ensure the spring of air inlet to be seamless after closing the air inlet.