Embedded installation for access doors.

Generally, the manhole is installed by embedded type.

Embedded installation

Fit: When inserting the access door into the installation position, ensure that the frame of the door is closely fitted with the surrounding structure. Check whether the four corners of the door are aligned with the corresponding corners of the opening, and the error shall not exceed 2mm.

Firm fixation: Use suitable fixing parts (such as tapping screws and expansion screws) to fix the access door.

The length and diameter of the screw should be selected according to the material and thickness of the installation part, so as to ensure that the screw can firmly fix the access door without penetrating or damaging the surrounding structure. The screw spacing is generally 15-20 cm and evenly distributed on the frame.