Definition: The so-called hanging window refers to a window with a fixed upper edge and pushed open from below

通风演示及计算公式

The calculation formula for the ventilation area of the hanging window: if the opening angle is greater than 70 degrees, it is approximately calculated based on the window area; If the angle is less than 70 degrees, follow F=F window * sinA,

A is the opening angle, and F is the window area.

1. The hinge support arm adopts an arched design, which enhances the load-bearing and compressive performance of the hinge.

2. The heavy-duty hinge adopts methods such as opening riveting (fastening, not easy to fall off) and special widening and thickening of the support arm to ensure high load capacity.

3. The WATA hinge is equipped with a fixed corner for the window sash, which enhances the adhesion of the hinge and prolongs its service life by using the triangle stabilization principle. Traditional hinges require high installation accuracy and slight installation deviations, which can cause the support arm to repeatedly collide with the top sharp corner, resulting in the sharp corner breaking and the hinge being unable to function properly, resulting in a short service life.

4. Each hinge is equipped with adjustable screw holes, adjustable by 3mm on each side, ensuring installation flexibility and facilitating construction.